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| org.apache.batik.ext.awt.image.codec.util</FONT> |
| <BR> |
| Class SeekableStream</H2> |
| <PRE> |
| <A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A> |
| <IMG SRC="../../../../../../../../resources/inherit.gif" ALT="extended by "><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">java.io.InputStream</A> |
| <IMG SRC="../../../../../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.batik.ext.awt.image.codec.util.SeekableStream</B> |
| </PRE> |
| <DL> |
| <DT><B>All Implemented Interfaces:</B> <DD><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/Closeable.html?is-external=true" title="class or interface in java.io">Closeable</A>, <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</A></DD> |
| </DL> |
| <DL> |
| <DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/FileCacheSeekableStream.html" title="class in org.apache.batik.ext.awt.image.codec.util">FileCacheSeekableStream</A>, <A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/ForwardSeekableStream.html" title="class in org.apache.batik.ext.awt.image.codec.util">ForwardSeekableStream</A>, <A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/MemoryCacheSeekableStream.html" title="class in org.apache.batik.ext.awt.image.codec.util">MemoryCacheSeekableStream</A></DD> |
| </DL> |
| <HR> |
| <DL> |
| <DT><PRE>public abstract class <B>SeekableStream</B><DT>extends <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</A><DT>implements <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</A></DL> |
| </PRE> |
| |
| <P> |
| An abstract subclass of <code>java.io.InputStream</code> that allows seeking |
| within the input, similar to the <code>RandomAccessFile</code> class. |
| Additionally, the <code>DataInput</code> interface is supported and extended |
| to include support for little-endian representations of fundamental data |
| types. |
| |
| <p> In addition to the familiar methods from <code>InputStream</code>, the |
| methods <code>getFilePointer()</code>, <code>seek()</code>, are defined as in |
| the <code>RandomAccessFile</code> class. The <code>canSeekBackwards()</code> |
| method will return <code>true</code> if it is permissible to seek to a |
| position earlier in the stream than the current value of |
| <code>getFilePointer()</code>. Some subclasses of |
| <code>SeekableStream</code> guarantee the ability to seek backwards while |
| others may not offer this feature in the interest of providing greater |
| efficiency for those users who do not require it. |
| |
| <p> The <code>DataInput</code> interface is supported as well. This included |
| the <code>skipBytes()</code> and <code>readFully()</code> methods and a |
| variety of <code>read</code> methods for various data types. |
| |
| <p> A number of concrete subclasses of <code>SeekableStream</code> are |
| supplied in the <code>com.sun.media.jai.codec</code> package. |
| |
| <p> Three classes are provided for the purpose of adapting a standard |
| <code>InputStream</code> to the <code>SeekableStream</code> interface. |
| <code>ForwardSeekableStream</code> does not allows seeking backwards, but is |
| inexpensive to use. <code>FileCacheSeekableStream</code> maintains a copy of |
| all of the data read from the input in a temporary file; this file will be |
| discarded automatically when the <code>FileSeekableStream</code> is |
| finalized, or when the JVM exits normally. |
| <code>FileCacheSeekableStream</code> is intended to be reasonably efficient |
| apart from the unavoidable use of disk space. In circumstances where the |
| creation of a temporary file is not possible, |
| <code>MemoryCacheSeekableStream</code> may be used. |
| <code>MemoryCacheSeekableStream</code> creates a potentially large in-memory |
| buffer to store the stream data and so should be avoided when possible. |
| |
| <p> The <code>FileSeekableStream</code> class wraps a <code>File</code> or |
| <code>RandomAccessFile</code>. It forwards requests to the real underlying |
| file. It performs a limited amount of caching in order to avoid excessive |
| I/O costs. |
| |
| <p> The <code>SegmentedSeekableStream</code> class performs a different sort |
| of function. It creates a <code>SeekableStream</code> from another |
| <code>SeekableStream</code> by selecting a series of portions or "segments". |
| Each segment starts at a specified location within the source |
| <code>SeekableStream</code> and extends for a specified number of bytes. The |
| <code>StreamSegmentMapper</code> interface and <code>StreamSegment</code> |
| class may be used to compute the segment positions dynamically. |
| |
| <p> A convenience methods, <code>wrapInputStream</code> is provided to |
| construct a suitable <code>SeekableStream</code> instance whose data is |
| supplied by a given <code>InputStream</code>. The caller, by means of the |
| <code>canSeekBackwards</code> parameter, determines whether support for |
| seeking backwards is required. |
| <P> |
| |
| <P> |
| <HR> |
| |
| <P> |
| <!-- =========== FIELD SUMMARY =========== --> |
| |
| <A NAME="field_summary"><!-- --></A> |
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| <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
| <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
| <B>Field Summary</B></FONT></TH> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE>protected long</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#markPos">markPos</A></B></CODE> |
| |
| <BR> |
| Marked position, shared by <A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/ForwardSeekableStream.html" title="class in org.apache.batik.ext.awt.image.codec.util"><CODE>ForwardSeekableStream</CODE></A></TD> |
| </TR> |
| </TABLE> |
| |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| |
| <A NAME="constructor_summary"><!-- --></A> |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
| <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
| <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
| <B>Constructor Summary</B></FONT></TH> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#SeekableStream()">SeekableStream</A></B>()</CODE> |
| |
| <BR> |
| </TD> |
| </TR> |
| </TABLE> |
| |
| <!-- ========== METHOD SUMMARY =========== --> |
| |
| <A NAME="method_summary"><!-- --></A> |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
| <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
| <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
| <B>Method Summary</B></FONT></TH> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> boolean</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#canSeekBackwards()">canSeekBackwards</A></B>()</CODE> |
| |
| <BR> |
| Returns <code>true</code> if this object supports calls to |
| <code>seek(pos)</code> with an offset <code>pos</code> smaller |
| than the current offset, as returned by <code>getFilePointer</code>.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE>protected void</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#finalize()">finalize</A></B>()</CODE> |
| |
| <BR> |
| Releases any system resources associated with this stream |
| by calling the <code>close()</code> method.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE>abstract long</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#getFilePointer()">getFilePointer</A></B>()</CODE> |
| |
| <BR> |
| Returns the current offset in this stream.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> void</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#mark(int)">mark</A></B>(int readLimit)</CODE> |
| |
| <BR> |
| Marks the current file position for later return using |
| the <code>reset()</code> method.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> boolean</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#markSupported()">markSupported</A></B>()</CODE> |
| |
| <BR> |
| Returns <code>true</code> if marking is supported.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE>abstract int</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#read()">read</A></B>()</CODE> |
| |
| <BR> |
| Reads the next byte of data from the input stream.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE>abstract int</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#read(byte[], int, int)">read</A></B>(byte[] b, |
| int off, |
| int len)</CODE> |
| |
| <BR> |
| Reads up to <code>len</code> bytes of data from the input stream into |
| an array of bytes.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> boolean</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#readBoolean()">readBoolean</A></B>()</CODE> |
| |
| <BR> |
| Reads a <code>boolean</code> from this stream.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> byte</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#readByte()">readByte</A></B>()</CODE> |
| |
| <BR> |
| Reads a signed eight-bit value from this stream.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> char</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#readChar()">readChar</A></B>()</CODE> |
| |
| <BR> |
| Reads a Unicode character from this stream.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> char</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#readCharLE()">readCharLE</A></B>()</CODE> |
| |
| <BR> |
| Reads a Unicode character from this stream in little-endian order.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> double</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#readDouble()">readDouble</A></B>()</CODE> |
| |
| <BR> |
| Reads a <code>double</code> from this stream.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> double</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#readDoubleLE()">readDoubleLE</A></B>()</CODE> |
| |
| <BR> |
| Reads a <code>double</code> from this stream in little-endian order.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> float</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#readFloat()">readFloat</A></B>()</CODE> |
| |
| <BR> |
| Reads a <code>float</code> from this stream.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> float</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#readFloatLE()">readFloatLE</A></B>()</CODE> |
| |
| <BR> |
| Reads a <code>float</code> from this stream in little-endian order.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> void</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#readFully(byte[])">readFully</A></B>(byte[] b)</CODE> |
| |
| <BR> |
| Reads <code>b.length</code> bytes from this stream into the byte |
| array, starting at the current stream pointer.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> void</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#readFully(byte[], int, int)">readFully</A></B>(byte[] b, |
| int off, |
| int len)</CODE> |
| |
| <BR> |
| Reads exactly <code>len</code> bytes from this stream into the byte |
| array, starting at the current stream pointer.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> int</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#readInt()">readInt</A></B>()</CODE> |
| |
| <BR> |
| Reads a signed 32-bit integer from this stream.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> int</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#readIntLE()">readIntLE</A></B>()</CODE> |
| |
| <BR> |
| Reads a signed 32-bit integer from this stream in little-endian order.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> <A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#readLine()">readLine</A></B>()</CODE> |
| |
| <BR> |
| Reads the next line of text from this stream.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> long</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#readLong()">readLong</A></B>()</CODE> |
| |
| <BR> |
| Reads a signed 64-bit integer from this stream.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> long</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#readLongLE()">readLongLE</A></B>()</CODE> |
| |
| <BR> |
| Reads a signed 64-bit integer from this stream in little-endian |
| order.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> short</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#readShort()">readShort</A></B>()</CODE> |
| |
| <BR> |
| Reads a signed 16-bit number from this stream.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> short</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#readShortLE()">readShortLE</A></B>()</CODE> |
| |
| <BR> |
| Reads a signed 16-bit number from this stream in little-endian order.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> int</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#readUnsignedByte()">readUnsignedByte</A></B>()</CODE> |
| |
| <BR> |
| Reads an unsigned eight-bit number from this stream.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> long</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#readUnsignedInt()">readUnsignedInt</A></B>()</CODE> |
| |
| <BR> |
| Reads an unsigned 32-bit integer from this stream.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> long</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#readUnsignedIntLE()">readUnsignedIntLE</A></B>()</CODE> |
| |
| <BR> |
| Reads an unsigned 32-bit integer from this stream in little-endian |
| order.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> int</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#readUnsignedShort()">readUnsignedShort</A></B>()</CODE> |
| |
| <BR> |
| Reads an unsigned 16-bit number from this stream.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> int</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#readUnsignedShortLE()">readUnsignedShortLE</A></B>()</CODE> |
| |
| <BR> |
| Reads an unsigned 16-bit number from this stream in little-endian order.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> <A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#readUTF()">readUTF</A></B>()</CODE> |
| |
| <BR> |
| Reads in a string from this stream.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> void</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#reset()">reset</A></B>()</CODE> |
| |
| <BR> |
| Returns the file position to its position at the time of |
| the immediately previous call to the <code>mark()</code> |
| method.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE>abstract void</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#seek(long)">seek</A></B>(long pos)</CODE> |
| |
| <BR> |
| Sets the offset, measured from the beginning of this |
| stream, at which the next read occurs.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> int</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#skipBytes(int)">skipBytes</A></B>(int n)</CODE> |
| |
| <BR> |
| Attempts to skip over <code>n</code> bytes of input discarding the |
| skipped bytes.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE>static <A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html" title="class in org.apache.batik.ext.awt.image.codec.util">SeekableStream</A></CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html#wrapInputStream(java.io.InputStream, boolean)">wrapInputStream</A></B>(<A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</A> is, |
| boolean canSeekBackwards)</CODE> |
| |
| <BR> |
| Returns a <code>SeekableStream</code> that will read from a |
| given <code>InputStream</code>, optionally including support |
| for seeking backwards.</TD> |
| </TR> |
| </TABLE> |
| <A NAME="methods_inherited_from_class_java.io.InputStream"><!-- --></A> |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
| <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> |
| <TH ALIGN="left"><B>Methods inherited from class java.io.<A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</A></B></TH> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/InputStream.html?is-external=true#available()" title="class or interface in java.io">available</A>, <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/InputStream.html?is-external=true#close()" title="class or interface in java.io">close</A>, <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/InputStream.html?is-external=true#read(byte[])" title="class or interface in java.io">read</A>, <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/InputStream.html?is-external=true#skip(long)" title="class or interface in java.io">skip</A></CODE></TD> |
| </TR> |
| </TABLE> |
| <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A> |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
| <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> |
| <TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></B></TH> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</A>, <A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</A>, <A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</A>, <A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</A>, <A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</A>, <A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</A>, <A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</A>, <A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD> |
| </TR> |
| </TABLE> |
| |
| <P> |
| |
| <!-- ============ FIELD DETAIL =========== --> |
| |
| <A NAME="field_detail"><!-- --></A> |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
| <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
| <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> |
| <B>Field Detail</B></FONT></TH> |
| </TR> |
| </TABLE> |
| |
| <A NAME="markPos"><!-- --></A><H3> |
| markPos</H3> |
| <PRE> |
| protected long <B>markPos</B></PRE> |
| <DL> |
| <DD>Marked position, shared by <A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/ForwardSeekableStream.html" title="class in org.apache.batik.ext.awt.image.codec.util"><CODE>ForwardSeekableStream</CODE></A> |
| <P> |
| <DL> |
| </DL> |
| </DL> |
| |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| |
| <A NAME="constructor_detail"><!-- --></A> |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
| <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
| <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> |
| <B>Constructor Detail</B></FONT></TH> |
| </TR> |
| </TABLE> |
| |
| <A NAME="SeekableStream()"><!-- --></A><H3> |
| SeekableStream</H3> |
| <PRE> |
| public <B>SeekableStream</B>()</PRE> |
| <DL> |
| </DL> |
| |
| <!-- ============ METHOD DETAIL ========== --> |
| |
| <A NAME="method_detail"><!-- --></A> |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
| <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
| <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> |
| <B>Method Detail</B></FONT></TH> |
| </TR> |
| </TABLE> |
| |
| <A NAME="wrapInputStream(java.io.InputStream, boolean)"><!-- --></A><H3> |
| wrapInputStream</H3> |
| <PRE> |
| public static <A HREF="../../../../../../../../org/apache/batik/ext/awt/image/codec/util/SeekableStream.html" title="class in org.apache.batik.ext.awt.image.codec.util">SeekableStream</A> <B>wrapInputStream</B>(<A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</A> is, |
| boolean canSeekBackwards)</PRE> |
| <DL> |
| <DD>Returns a <code>SeekableStream</code> that will read from a |
| given <code>InputStream</code>, optionally including support |
| for seeking backwards. This is a convenience method that |
| avoids the need to instantiate specific subclasses of |
| <code>SeekableStream</code> depending on the current security |
| model. |
| <P> |
| <DD><DL> |
| </DL> |
| </DD> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>is</CODE> - An <code>InputStream</code>.<DD><CODE>canSeekBackwards</CODE> - <code>true</code> if the ability to seek |
| backwards in the output is required. |
| <DT><B>Returns:</B><DD>An instance of <code>SeekableStream</code>.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="read()"><!-- --></A><H3> |
| read</H3> |
| <PRE> |
| public abstract int <B>read</B>() |
| throws <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
| <DL> |
| <DD>Reads the next byte of data from the input stream. The value byte is |
| returned as an <code>int</code> in the range <code>0</code> to |
| <code>255</code>. If no byte is available because the end of the stream |
| has been reached, the value <code>-1</code> is returned. This method |
| blocks until input data is available, the end of the stream is detected, |
| or an exception is thrown. |
| |
| <p> A subclass must provide an implementation of this method. |
| <P> |
| <DD><DL> |
| <DT><B>Specified by:</B><DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/InputStream.html?is-external=true#read()" title="class or interface in java.io">read</A></CODE> in class <CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>the next byte of data, or <code>-1</code> if the end of the |
| stream is reached. |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - if an I/O error occurs.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="read(byte[], int, int)"><!-- --></A><H3> |
| read</H3> |
| <PRE> |
| public abstract int <B>read</B>(byte[] b, |
| int off, |
| int len) |
| throws <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
| <DL> |
| <DD>Reads up to <code>len</code> bytes of data from the input stream into |
| an array of bytes. An attempt is made to read as many as |
| <code>len</code> bytes, but a smaller number may be read, possibly |
| zero. The number of bytes actually read is returned as an integer. |
| |
| <p> This method blocks until input data is available, end of stream is |
| detected, or an exception is thrown. |
| |
| <p> If <code>b</code> is <code>null</code>, a |
| <code>NullPointerException</code> is thrown. |
| |
| <p> If <code>off</code> is negative, or <code>len</code> is negative, or |
| <code>off+len</code> is greater than the length of the array |
| <code>b</code>, then an <code>IndexOutOfBoundsException</code> is |
| thrown. |
| |
| <p> If <code>len</code> is zero, then no bytes are read and |
| <code>0</code> is returned; otherwise, there is an attempt to read at |
| least one byte. If no byte is available because the stream is at end of |
| stream, the value <code>-1</code> is returned; otherwise, at least one |
| byte is read and stored into <code>b</code>. |
| |
| <p> The first byte read is stored into element <code>b[off]</code>, the |
| next one into <code>b[off+1]</code>, and so on. The number of bytes read |
| is, at most, equal to <code>len</code>. Let <i>k</i> be the number of |
| bytes actually read; these bytes will be stored in elements |
| <code>b[off]</code> through <code>b[off+</code><i>k</i><code>-1]</code>, |
| leaving elements <code>b[off+</code><i>k</i><code>]</code> through |
| <code>b[off+len-1]</code> unaffected. |
| |
| <p> In every case, elements <code>b[0]</code> through |
| <code>b[off]</code> and elements <code>b[off+len]</code> through |
| <code>b[b.length-1]</code> are unaffected. |
| |
| <p> If the first byte cannot be read for any reason other than end of |
| stream, then an <code>IOException</code> is thrown. In particular, an |
| <code>IOException</code> is thrown if the input stream has been closed. |
| |
| <p> A subclass must provide an implementation of this method. |
| <P> |
| <DD><DL> |
| <DT><B>Overrides:</B><DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/InputStream.html?is-external=true#read(byte[], int, int)" title="class or interface in java.io">read</A></CODE> in class <CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>b</CODE> - the buffer into which the data is read.<DD><CODE>off</CODE> - the start offset in array <code>b</code> |
| at which the data is written.<DD><CODE>len</CODE> - the maximum number of bytes to read. |
| <DT><B>Returns:</B><DD>the total number of bytes read into the buffer, or |
| <code>-1</code> if there is no more data because the end of |
| the stream has been reached. |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - if an I/O error occurs.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="mark(int)"><!-- --></A><H3> |
| mark</H3> |
| <PRE> |
| public void <B>mark</B>(int readLimit)</PRE> |
| <DL> |
| <DD>Marks the current file position for later return using |
| the <code>reset()</code> method. |
| <P> |
| <DD><DL> |
| <DT><B>Overrides:</B><DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/InputStream.html?is-external=true#mark(int)" title="class or interface in java.io">mark</A></CODE> in class <CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| </DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="reset()"><!-- --></A><H3> |
| reset</H3> |
| <PRE> |
| public void <B>reset</B>() |
| throws <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
| <DL> |
| <DD>Returns the file position to its position at the time of |
| the immediately previous call to the <code>mark()</code> |
| method. |
| <P> |
| <DD><DL> |
| <DT><B>Overrides:</B><DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/InputStream.html?is-external=true#reset()" title="class or interface in java.io">reset</A></CODE> in class <CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE></DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="markSupported()"><!-- --></A><H3> |
| markSupported</H3> |
| <PRE> |
| public boolean <B>markSupported</B>()</PRE> |
| <DL> |
| <DD>Returns <code>true</code> if marking is supported. |
| Marking is automatically supported for <code>SeekableStream</code> |
| subclasses that support seeking backeards. Subclasses that do |
| not support seeking backwards but do support marking must override |
| this method. |
| <P> |
| <DD><DL> |
| <DT><B>Overrides:</B><DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/InputStream.html?is-external=true#markSupported()" title="class or interface in java.io">markSupported</A></CODE> in class <CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| </DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="canSeekBackwards()"><!-- --></A><H3> |
| canSeekBackwards</H3> |
| <PRE> |
| public boolean <B>canSeekBackwards</B>()</PRE> |
| <DL> |
| <DD>Returns <code>true</code> if this object supports calls to |
| <code>seek(pos)</code> with an offset <code>pos</code> smaller |
| than the current offset, as returned by <code>getFilePointer</code>. |
| <P> |
| <DD><DL> |
| </DL> |
| </DD> |
| <DD><DL> |
| </DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="getFilePointer()"><!-- --></A><H3> |
| getFilePointer</H3> |
| <PRE> |
| public abstract long <B>getFilePointer</B>() |
| throws <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
| <DL> |
| <DD>Returns the current offset in this stream. |
| <P> |
| <DD><DL> |
| </DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>the offset from the beginning of the stream, in bytes, |
| at which the next read occurs. |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - if an I/O error occurs.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="seek(long)"><!-- --></A><H3> |
| seek</H3> |
| <PRE> |
| public abstract void <B>seek</B>(long pos) |
| throws <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
| <DL> |
| <DD>Sets the offset, measured from the beginning of this |
| stream, at which the next read occurs. |
| |
| <p> If <code>canSeekBackwards()</code> returns <code>false</code>, |
| then setting <code>pos</code> to an offset smaller than |
| the current value of <code>getFilePointer()</code> will have |
| no effect. |
| <P> |
| <DD><DL> |
| </DL> |
| </DD> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>pos</CODE> - the offset position, measured in bytes from the |
| beginning of the stream, at which to set the stream |
| pointer. |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - if <code>pos</code> is less than |
| <code>0</code> or if an I/O error occurs.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="readFully(byte[])"><!-- --></A><H3> |
| readFully</H3> |
| <PRE> |
| public final void <B>readFully</B>(byte[] b) |
| throws <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
| <DL> |
| <DD>Reads <code>b.length</code> bytes from this stream into the byte |
| array, starting at the current stream pointer. This method reads |
| repeatedly from the stream until the requested number of bytes are |
| read. This method blocks until the requested number of bytes are |
| read, the end of the stream is detected, or an exception is thrown. |
| <P> |
| <DD><DL> |
| <DT><B>Specified by:</B><DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true#readFully(byte[])" title="class or interface in java.io">readFully</A></CODE> in interface <CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>b</CODE> - the buffer into which the data is read. |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/EOFException.html?is-external=true" title="class or interface in java.io">EOFException</A></CODE> - if this stream reaches the end before reading |
| all the bytes. |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - if an I/O error occurs.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="readFully(byte[], int, int)"><!-- --></A><H3> |
| readFully</H3> |
| <PRE> |
| public final void <B>readFully</B>(byte[] b, |
| int off, |
| int len) |
| throws <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
| <DL> |
| <DD>Reads exactly <code>len</code> bytes from this stream into the byte |
| array, starting at the current stream pointer. This method reads |
| repeatedly from the stream until the requested number of bytes are |
| read. This method blocks until the requested number of bytes are |
| read, the end of the stream is detected, or an exception is thrown. |
| <P> |
| <DD><DL> |
| <DT><B>Specified by:</B><DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true#readFully(byte[], int, int)" title="class or interface in java.io">readFully</A></CODE> in interface <CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>b</CODE> - the buffer into which the data is read.<DD><CODE>off</CODE> - the start offset of the data.<DD><CODE>len</CODE> - the number of bytes to read. |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/EOFException.html?is-external=true" title="class or interface in java.io">EOFException</A></CODE> - if this stream reaches the end before reading |
| all the bytes. |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - if an I/O error occurs.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="skipBytes(int)"><!-- --></A><H3> |
| skipBytes</H3> |
| <PRE> |
| public int <B>skipBytes</B>(int n) |
| throws <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
| <DL> |
| <DD>Attempts to skip over <code>n</code> bytes of input discarding the |
| skipped bytes. |
| <p> |
| |
| This method may skip over some smaller number of bytes, possibly zero. |
| This may result from any of a number of conditions; reaching end of |
| stream before <code>n</code> bytes have been skipped is only one |
| possibility. This method never throws an <code>EOFException</code>. |
| The actual number of bytes skipped is returned. If <code>n</code> |
| is negative, no bytes are skipped. |
| <P> |
| <DD><DL> |
| <DT><B>Specified by:</B><DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true#skipBytes(int)" title="class or interface in java.io">skipBytes</A></CODE> in interface <CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>n</CODE> - the number of bytes to be skipped. |
| <DT><B>Returns:</B><DD>the actual number of bytes skipped. |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - if an I/O error occurs.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="readBoolean()"><!-- --></A><H3> |
| readBoolean</H3> |
| <PRE> |
| public final boolean <B>readBoolean</B>() |
| throws <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
| <DL> |
| <DD>Reads a <code>boolean</code> from this stream. This method reads a |
| single byte from the stream, starting at the current stream pointer. |
| A value of <code>0</code> represents |
| <code>false</code>. Any other value represents <code>true</code>. |
| This method blocks until the byte is read, the end of the stream |
| is detected, or an exception is thrown. |
| <P> |
| <DD><DL> |
| <DT><B>Specified by:</B><DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true#readBoolean()" title="class or interface in java.io">readBoolean</A></CODE> in interface <CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>the <code>boolean</code> value read. |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/EOFException.html?is-external=true" title="class or interface in java.io">EOFException</A></CODE> - if this stream has reached the end. |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - if an I/O error occurs.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="readByte()"><!-- --></A><H3> |
| readByte</H3> |
| <PRE> |
| public final byte <B>readByte</B>() |
| throws <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
| <DL> |
| <DD>Reads a signed eight-bit value from this stream. This method reads a |
| byte from the stream, starting from the current stream pointer. |
| If the byte read is <code>b</code>, where |
| <code>0 <= b <= 255</code>, |
| then the result is: |
| <blockquote><pre> |
| (byte)(b) |
| </pre></blockquote> |
| <p> |
| This method blocks until the byte is read, the end of the stream |
| is detected, or an exception is thrown. |
| <P> |
| <DD><DL> |
| <DT><B>Specified by:</B><DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true#readByte()" title="class or interface in java.io">readByte</A></CODE> in interface <CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>the next byte of this stream as a signed eight-bit |
| <code>byte</code>. |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/EOFException.html?is-external=true" title="class or interface in java.io">EOFException</A></CODE> - if this stream has reached the end. |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - if an I/O error occurs.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="readUnsignedByte()"><!-- --></A><H3> |
| readUnsignedByte</H3> |
| <PRE> |
| public final int <B>readUnsignedByte</B>() |
| throws <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
| <DL> |
| <DD>Reads an unsigned eight-bit number from this stream. This method reads |
| a byte from this stream, starting at the current stream pointer, |
| and returns that byte. |
| <p> |
| This method blocks until the byte is read, the end of the stream |
| is detected, or an exception is thrown. |
| <P> |
| <DD><DL> |
| <DT><B>Specified by:</B><DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true#readUnsignedByte()" title="class or interface in java.io">readUnsignedByte</A></CODE> in interface <CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>the next byte of this stream, interpreted as an unsigned |
| eight-bit number. |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/EOFException.html?is-external=true" title="class or interface in java.io">EOFException</A></CODE> - if this stream has reached the end. |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - if an I/O error occurs.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="readShort()"><!-- --></A><H3> |
| readShort</H3> |
| <PRE> |
| public final short <B>readShort</B>() |
| throws <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
| <DL> |
| <DD>Reads a signed 16-bit number from this stream. |
| The method reads two |
| bytes from this stream, starting at the current stream pointer. |
| If the two bytes read, in order, are |
| <code>b1</code> and <code>b2</code>, where each of the two values is |
| between <code>0</code> and <code>255</code>, inclusive, then the |
| result is equal to: |
| <blockquote><pre> |
| (short)((b1 << 8) | b2) |
| </pre></blockquote> |
| <p> |
| This method blocks until the two bytes are read, the end of the |
| stream is detected, or an exception is thrown. |
| <P> |
| <DD><DL> |
| <DT><B>Specified by:</B><DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true#readShort()" title="class or interface in java.io">readShort</A></CODE> in interface <CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>the next two bytes of this stream, interpreted as a signed |
| 16-bit number. |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/EOFException.html?is-external=true" title="class or interface in java.io">EOFException</A></CODE> - if this stream reaches the end before reading |
| two bytes. |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - if an I/O error occurs.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="readShortLE()"><!-- --></A><H3> |
| readShortLE</H3> |
| <PRE> |
| public final short <B>readShortLE</B>() |
| throws <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
| <DL> |
| <DD>Reads a signed 16-bit number from this stream in little-endian order. |
| The method reads two |
| bytes from this stream, starting at the current stream pointer. |
| If the two bytes read, in order, are |
| <code>b1</code> and <code>b2</code>, where each of the two values is |
| between <code>0</code> and <code>255</code>, inclusive, then the |
| result is equal to: |
| <blockquote><pre> |
| (short)((b2 << 8) | b1) |
| </pre></blockquote> |
| <p> |
| This method blocks until the two bytes are read, the end of the |
| stream is detected, or an exception is thrown. |
| <P> |
| <DD><DL> |
| </DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>the next two bytes of this stream, interpreted as a signed |
| 16-bit number. |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/EOFException.html?is-external=true" title="class or interface in java.io">EOFException</A></CODE> - if this stream reaches the end before reading |
| two bytes. |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - if an I/O error occurs.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="readUnsignedShort()"><!-- --></A><H3> |
| readUnsignedShort</H3> |
| <PRE> |
| public final int <B>readUnsignedShort</B>() |
| throws <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
| <DL> |
| <DD>Reads an unsigned 16-bit number from this stream. This method reads |
| two bytes from the stream, starting at the current stream pointer. |
| If the bytes read, in order, are |
| <code>b1</code> and <code>b2</code>, where |
| <code>0 <= b1, b2 <= 255</code>, |
| then the result is equal to: |
| <blockquote><pre> |
| (b1 << 8) | b2 |
| </pre></blockquote> |
| <p> |
| This method blocks until the two bytes are read, the end of the |
| stream is detected, or an exception is thrown. |
| <P> |
| <DD><DL> |
| <DT><B>Specified by:</B><DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true#readUnsignedShort()" title="class or interface in java.io">readUnsignedShort</A></CODE> in interface <CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>the next two bytes of this stream, interpreted as an |
| unsigned 16-bit integer. |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/EOFException.html?is-external=true" title="class or interface in java.io">EOFException</A></CODE> - if this stream reaches the end before reading |
| two bytes. |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - if an I/O error occurs.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="readUnsignedShortLE()"><!-- --></A><H3> |
| readUnsignedShortLE</H3> |
| <PRE> |
| public final int <B>readUnsignedShortLE</B>() |
| throws <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
| <DL> |
| <DD>Reads an unsigned 16-bit number from this stream in little-endian order. |
| This method reads |
| two bytes from the stream, starting at the current stream pointer. |
| If the bytes read, in order, are |
| <code>b1</code> and <code>b2</code>, where |
| <code>0 <= b1, b2 <= 255</code>, |
| then the result is equal to: |
| <blockquote><pre> |
| (b2 << 8) | b1 |
| </pre></blockquote> |
| <p> |
| This method blocks until the two bytes are read, the end of the |
| stream is detected, or an exception is thrown. |
| <P> |
| <DD><DL> |
| </DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>the next two bytes of this stream, interpreted as an |
| unsigned 16-bit integer. |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/EOFException.html?is-external=true" title="class or interface in java.io">EOFException</A></CODE> - if this stream reaches the end before reading |
| two bytes. |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - if an I/O error occurs.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="readChar()"><!-- --></A><H3> |
| readChar</H3> |
| <PRE> |
| public final char <B>readChar</B>() |
| throws <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
| <DL> |
| <DD>Reads a Unicode character from this stream. This method reads two |
| bytes from the stream, starting at the current stream pointer. |
| If the bytes read, in order, are |
| <code>b1</code> and <code>b2</code>, where |
| <code>0 <= b1, b2 <= 255</code>, |
| then the result is equal to: |
| <blockquote><pre> |
| (char)((b1 << 8) | b2) |
| </pre></blockquote> |
| <p> |
| This method blocks until the two bytes are read, the end of the |
| stream is detected, or an exception is thrown. |
| <P> |
| <DD><DL> |
| <DT><B>Specified by:</B><DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true#readChar()" title="class or interface in java.io">readChar</A></CODE> in interface <CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>the next two bytes of this stream as a Unicode character. |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/EOFException.html?is-external=true" title="class or interface in java.io">EOFException</A></CODE> - if this stream reaches the end before reading |
| two bytes. |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - if an I/O error occurs.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="readCharLE()"><!-- --></A><H3> |
| readCharLE</H3> |
| <PRE> |
| public final char <B>readCharLE</B>() |
| throws <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
| <DL> |
| <DD>Reads a Unicode character from this stream in little-endian order. |
| This method reads two |
| bytes from the stream, starting at the current stream pointer. |
| If the bytes read, in order, are |
| <code>b1</code> and <code>b2</code>, where |
| <code>0 <= b1, b2 <= 255</code>, |
| then the result is equal to: |
| <blockquote><pre> |
| (char)((b2 << 8) | b1) |
| </pre></blockquote> |
| <p> |
| This method blocks until the two bytes are read, the end of the |
| stream is detected, or an exception is thrown. |
| <P> |
| <DD><DL> |
| </DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>the next two bytes of this stream as a Unicode character. |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/EOFException.html?is-external=true" title="class or interface in java.io">EOFException</A></CODE> - if this stream reaches the end before reading |
| two bytes. |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - if an I/O error occurs.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="readInt()"><!-- --></A><H3> |
| readInt</H3> |
| <PRE> |
| public final int <B>readInt</B>() |
| throws <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
| <DL> |
| <DD>Reads a signed 32-bit integer from this stream. This method reads 4 |
| bytes from the stream, starting at the current stream pointer. |
| If the bytes read, in order, are <code>b1</code>, |
| <code>b2</code>, <code>b3</code>, and <code>b4</code>, where |
| <code>0 <= b1, b2, b3, b4 <= 255</code>, |
| then the result is equal to: |
| <blockquote><pre> |
| (b1 << 24) | (b2 << 16) + (b3 << 8) + b4 |
| </pre></blockquote> |
| <p> |
| This method blocks until the four bytes are read, the end of the |
| stream is detected, or an exception is thrown. |
| <P> |
| <DD><DL> |
| <DT><B>Specified by:</B><DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true#readInt()" title="class or interface in java.io">readInt</A></CODE> in interface <CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>the next four bytes of this stream, interpreted as an |
| <code>int</code>. |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/EOFException.html?is-external=true" title="class or interface in java.io">EOFException</A></CODE> - if this stream reaches the end before reading |
| four bytes. |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - if an I/O error occurs.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="readIntLE()"><!-- --></A><H3> |
| readIntLE</H3> |
| <PRE> |
| public final int <B>readIntLE</B>() |
| throws <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
| <DL> |
| <DD>Reads a signed 32-bit integer from this stream in little-endian order. |
| This method reads 4 |
| bytes from the stream, starting at the current stream pointer. |
| If the bytes read, in order, are <code>b1</code>, |
| <code>b2</code>, <code>b3</code>, and <code>b4</code>, where |
| <code>0 <= b1, b2, b3, b4 <= 255</code>, |
| then the result is equal to: |
| <blockquote><pre> |
| (b4 << 24) | (b3 << 16) + (b2 << 8) + b1 |
| </pre></blockquote> |
| <p> |
| This method blocks until the four bytes are read, the end of the |
| stream is detected, or an exception is thrown. |
| <P> |
| <DD><DL> |
| </DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>the next four bytes of this stream, interpreted as an |
| <code>int</code>. |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/EOFException.html?is-external=true" title="class or interface in java.io">EOFException</A></CODE> - if this stream reaches the end before reading |
| four bytes. |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - if an I/O error occurs.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="readUnsignedInt()"><!-- --></A><H3> |
| readUnsignedInt</H3> |
| <PRE> |
| public final long <B>readUnsignedInt</B>() |
| throws <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
| <DL> |
| <DD>Reads an unsigned 32-bit integer from this stream. This method reads 4 |
| bytes from the stream, starting at the current stream pointer. |
| If the bytes read, in order, are <code>b1</code>, |
| <code>b2</code>, <code>b3</code>, and <code>b4</code>, where |
| <code>0 <= b1, b2, b3, b4 <= 255</code>, |
| then the result is equal to: |
| <blockquote><pre> |
| (b1 << 24) | (b2 << 16) + (b3 << 8) + b4 |
| </pre></blockquote> |
| <p> |
| This method blocks until the four bytes are read, the end of the |
| stream is detected, or an exception is thrown. |
| <P> |
| <DD><DL> |
| </DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>the next four bytes of this stream, interpreted as a |
| <code>long</code>. |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/EOFException.html?is-external=true" title="class or interface in java.io">EOFException</A></CODE> - if this stream reaches the end before reading |
| four bytes. |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - if an I/O error occurs.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="readUnsignedIntLE()"><!-- --></A><H3> |
| readUnsignedIntLE</H3> |
| <PRE> |
| public final long <B>readUnsignedIntLE</B>() |
| throws <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
| <DL> |
| <DD>Reads an unsigned 32-bit integer from this stream in little-endian |
| order. This method reads 4 |
| bytes from the stream, starting at the current stream pointer. |
| If the bytes read, in order, are <code>b1</code>, |
| <code>b2</code>, <code>b3</code>, and <code>b4</code>, where |
| <code>0 <= b1, b2, b3, b4 <= 255</code>, |
| then the result is equal to: |
| <blockquote><pre> |
| (b4 << 24) | (b3 << 16) + (b2 << 8) + b1 |
| </pre></blockquote> |
| <p> |
| This method blocks until the four bytes are read, the end of the |
| stream is detected, or an exception is thrown. |
| <P> |
| <DD><DL> |
| </DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>the next four bytes of this stream, interpreted as a |
| <code>long</code>. |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/EOFException.html?is-external=true" title="class or interface in java.io">EOFException</A></CODE> - if this stream reaches the end before reading |
| four bytes. |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - if an I/O error occurs.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="readLong()"><!-- --></A><H3> |
| readLong</H3> |
| <PRE> |
| public final long <B>readLong</B>() |
| throws <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
| <DL> |
| <DD>Reads a signed 64-bit integer from this stream. This method reads eight |
| bytes from the stream, starting at the current stream pointer. |
| If the bytes read, in order, are |
| <code>b1</code>, <code>b2</code>, <code>b3</code>, |
| <code>b4</code>, <code>b5</code>, <code>b6</code>, |
| <code>b7</code>, and <code>b8,</code> where: |
| <blockquote><pre> |
| 0 <= b1, b2, b3, b4, b5, b6, b7, b8 <=255, |
| </pre></blockquote> |
| <p> |
| then the result is equal to: |
| <p><blockquote><pre> |
| ((long)b1 << 56) + ((long)b2 << 48) |
| + ((long)b3 << 40) + ((long)b4 << 32) |
| + ((long)b5 << 24) + ((long)b6 << 16) |
| + ((long)b7 << 8) + b8 |
| </pre></blockquote> |
| <p> |
| This method blocks until the eight bytes are read, the end of the |
| stream is detected, or an exception is thrown. |
| <P> |
| <DD><DL> |
| <DT><B>Specified by:</B><DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true#readLong()" title="class or interface in java.io">readLong</A></CODE> in interface <CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>the next eight bytes of this stream, interpreted as a |
| <code>long</code>. |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/EOFException.html?is-external=true" title="class or interface in java.io">EOFException</A></CODE> - if this stream reaches the end before reading |
| eight bytes. |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - if an I/O error occurs.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="readLongLE()"><!-- --></A><H3> |
| readLongLE</H3> |
| <PRE> |
| public final long <B>readLongLE</B>() |
| throws <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
| <DL> |
| <DD>Reads a signed 64-bit integer from this stream in little-endian |
| order. This method reads eight |
| bytes from the stream, starting at the current stream pointer. |
| If the bytes read, in order, are |
| <code>b1</code>, <code>b2</code>, <code>b3</code>, |
| <code>b4</code>, <code>b5</code>, <code>b6</code>, |
| <code>b7</code>, and <code>b8,</code> where: |
| <blockquote><pre> |
| 0 <= b1, b2, b3, b4, b5, b6, b7, b8 <=255, |
| </pre></blockquote> |
| <p> |
| then the result is equal to: |
| <p><blockquote><pre> |
| ((long)b1 << 56) + ((long)b2 << 48) |
| + ((long)b3 << 40) + ((long)b4 << 32) |
| + ((long)b5 << 24) + ((long)b6 << 16) |
| + ((long)b7 << 8) + b8 |
| </pre></blockquote> |
| <p> |
| This method blocks until the eight bytes are read, the end of the |
| stream is detected, or an exception is thrown. |
| <P> |
| <DD><DL> |
| </DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>the next eight bytes of this stream, interpreted as a |
| <code>long</code>. |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/EOFException.html?is-external=true" title="class or interface in java.io">EOFException</A></CODE> - if this stream reaches the end before reading |
| eight bytes. |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - if an I/O error occurs.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="readFloat()"><!-- --></A><H3> |
| readFloat</H3> |
| <PRE> |
| public final float <B>readFloat</B>() |
| throws <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
| <DL> |
| <DD>Reads a <code>float</code> from this stream. This method reads an |
| <code>int</code> value, starting at the current stream pointer, |
| as if by the <code>readInt</code> method |
| and then converts that <code>int</code> to a <code>float</code> |
| using the <code>intBitsToFloat</code> method in class |
| <code>Float</code>. |
| <p> |
| This method blocks until the four bytes are read, the end of the |
| stream is detected, or an exception is thrown. |
| <P> |
| <DD><DL> |
| <DT><B>Specified by:</B><DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true#readFloat()" title="class or interface in java.io">readFloat</A></CODE> in interface <CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>the next four bytes of this stream, interpreted as a |
| <code>float</code>. |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/EOFException.html?is-external=true" title="class or interface in java.io">EOFException</A></CODE> - if this stream reaches the end before reading |
| four bytes. |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - if an I/O error occurs.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="readFloatLE()"><!-- --></A><H3> |
| readFloatLE</H3> |
| <PRE> |
| public final float <B>readFloatLE</B>() |
| throws <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
| <DL> |
| <DD>Reads a <code>float</code> from this stream in little-endian order. |
| This method reads an |
| <code>int</code> value, starting at the current stream pointer, |
| as if by the <code>readInt</code> method |
| and then converts that <code>int</code> to a <code>float</code> |
| using the <code>intBitsToFloat</code> method in class |
| <code>Float</code>. |
| <p> |
| This method blocks until the four bytes are read, the end of the |
| stream is detected, or an exception is thrown. |
| <P> |
| <DD><DL> |
| </DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>the next four bytes of this stream, interpreted as a |
| <code>float</code>. |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/EOFException.html?is-external=true" title="class or interface in java.io">EOFException</A></CODE> - if this stream reaches the end before reading |
| four bytes. |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - if an I/O error occurs.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="readDouble()"><!-- --></A><H3> |
| readDouble</H3> |
| <PRE> |
| public final double <B>readDouble</B>() |
| throws <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
| <DL> |
| <DD>Reads a <code>double</code> from this stream. This method reads a |
| <code>long</code> value, starting at the current stream pointer, |
| as if by the <code>readLong</code> method |
| and then converts that <code>long</code> to a <code>double</code> |
| using the <code>longBitsToDouble</code> method in |
| class <code>Double</code>. |
| <p> |
| This method blocks until the eight bytes are read, the end of the |
| stream is detected, or an exception is thrown. |
| <P> |
| <DD><DL> |
| <DT><B>Specified by:</B><DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true#readDouble()" title="class or interface in java.io">readDouble</A></CODE> in interface <CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>the next eight bytes of this stream, interpreted as a |
| <code>double</code>. |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/EOFException.html?is-external=true" title="class or interface in java.io">EOFException</A></CODE> - if this stream reaches the end before reading |
| eight bytes. |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - if an I/O error occurs.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="readDoubleLE()"><!-- --></A><H3> |
| readDoubleLE</H3> |
| <PRE> |
| public final double <B>readDoubleLE</B>() |
| throws <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
| <DL> |
| <DD>Reads a <code>double</code> from this stream in little-endian order. |
| This method reads a |
| <code>long</code> value, starting at the current stream pointer, |
| as if by the <code>readLong</code> method |
| and then converts that <code>long</code> to a <code>double</code> |
| using the <code>longBitsToDouble</code> method in |
| class <code>Double</code>. |
| <p> |
| This method blocks until the eight bytes are read, the end of the |
| stream is detected, or an exception is thrown. |
| <P> |
| <DD><DL> |
| </DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>the next eight bytes of this stream, interpreted as a |
| <code>double</code>. |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/EOFException.html?is-external=true" title="class or interface in java.io">EOFException</A></CODE> - if this stream reaches the end before reading |
| eight bytes. |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - if an I/O error occurs.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="readLine()"><!-- --></A><H3> |
| readLine</H3> |
| <PRE> |
| public final <A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>readLine</B>() |
| throws <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
| <DL> |
| <DD>Reads the next line of text from this stream. This method successively |
| reads bytes from the stream, starting at the current stream pointer, |
| until it reaches a line terminator or the end |
| of the stream. Each byte is converted into a character by taking the |
| byte's value for the lower eight bits of the character and setting the |
| high eight bits of the character to zero. This method does not, |
| therefore, support the full Unicode character set. |
| |
| <p> A line of text is terminated by a carriage-return character |
| (<code>'\r'</code>), a newline character (<code>'\n'</code>), a |
| carriage-return character immediately followed by a newline character, |
| or the end of the stream. Line-terminating characters are discarded and |
| are not included as part of the string returned. |
| |
| <p> This method blocks until a newline character is read, a carriage |
| return and the byte following it are read (to see if it is a newline), |
| the end of the stream is reached, or an exception is thrown. |
| <P> |
| <DD><DL> |
| <DT><B>Specified by:</B><DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true#readLine()" title="class or interface in java.io">readLine</A></CODE> in interface <CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>the next line of text from this stream, or null if end |
| of stream is encountered before even one byte is read. |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - if an I/O error occurs.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="readUTF()"><!-- --></A><H3> |
| readUTF</H3> |
| <PRE> |
| public final <A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>readUTF</B>() |
| throws <A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
| <DL> |
| <DD>Reads in a string from this stream. The string has been encoded |
| using a modified UTF-8 format. |
| <p> |
| The first two bytes are read, starting from the current stream |
| pointer, as if by |
| <code>readUnsignedShort</code>. This value gives the number of |
| following bytes that are in the encoded string, not |
| the length of the resulting string. The following bytes are then |
| interpreted as bytes encoding characters in the UTF-8 format |
| and are converted into characters. |
| <p> |
| This method blocks until all the bytes are read, the end of the |
| stream is detected, or an exception is thrown. |
| <P> |
| <DD><DL> |
| <DT><B>Specified by:</B><DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true#readUTF()" title="class or interface in java.io">readUTF</A></CODE> in interface <CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>a Unicode string. |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/EOFException.html?is-external=true" title="class or interface in java.io">EOFException</A></CODE> - if this stream reaches the end before |
| reading all the bytes. |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - if an I/O error occurs. |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/io/UTFDataFormatException.html?is-external=true" title="class or interface in java.io">UTFDataFormatException</A></CODE> - if the bytes do not represent |
| valid UTF-8 encoding of a Unicode string.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="finalize()"><!-- --></A><H3> |
| finalize</H3> |
| <PRE> |
| protected void <B>finalize</B>() |
| throws <A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</A></PRE> |
| <DL> |
| <DD>Releases any system resources associated with this stream |
| by calling the <code>close()</code> method. |
| <P> |
| <DD><DL> |
| <DT><B>Overrides:</B><DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</A></CODE> in class <CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</A></CODE></DL> |
| </DD> |
| </DL> |
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