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| <div class="subTitle">org.apache.pdfbox.pdfparser</div> |
| <h2 title="Class XrefTrailerResolver" class="title">Class XrefTrailerResolver</h2> |
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| <ul class="inheritance"> |
| <li><a href="http://download.oracle.com/javase/1.6.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li> |
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| <ul class="inheritance"> |
| <li>org.apache.pdfbox.pdfparser.XrefTrailerResolver</li> |
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| <pre>public class <span class="strong">XrefTrailerResolver</span> |
| extends <a href="http://download.oracle.com/javase/1.6.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre> |
| <div class="block">This class will collect all XRef/trailer objects and creates correct |
| xref/trailer information after all objects are read using startxref |
| and 'Prev' information (unused XRef/trailer objects are discarded). |
| |
| In case of missing startxref or wrong startxref pointer all |
| XRef/trailer objects are used to create xref table / trailer dictionary |
| in order they occur. |
| |
| For each new xref object/XRef stream method <a href="../../../../org/apache/pdfbox/pdfparser/XrefTrailerResolver.html#nextXrefObj(long,%20org.apache.pdfbox.pdfparser.XrefTrailerResolver.XRefType)"><code>nextXrefObj(long, XRefType)</code></a> |
| must be called with start byte position. All following calls to |
| <a href="../../../../org/apache/pdfbox/pdfparser/XrefTrailerResolver.html#setXRef(org.apache.pdfbox.cos.COSObjectKey,%20long)"><code>setXRef(COSObjectKey, long)</code></a> or <a href="../../../../org/apache/pdfbox/pdfparser/XrefTrailerResolver.html#setTrailer(org.apache.pdfbox.cos.COSDictionary)"><code>setTrailer(COSDictionary)</code></a> |
| will add the data for this byte position. |
| |
| After all objects are parsed the startxref position must be provided |
| using <a href="../../../../org/apache/pdfbox/pdfparser/XrefTrailerResolver.html#setStartxref(long)"><code>setStartxref(long)</code></a>. This is used to build the chain of |
| active xref/trailer objects used for creating document trailer and xref table.</div> |
| <dl><dt><span class="strong">Author:</span></dt> |
| <dd>Timo Böhme</dd></dl> |
| </li> |
| </ul> |
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| <caption><span>Nested Classes</span><span class="tabEnd"> </span></caption> |
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| <th class="colLast" scope="col">Class and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/pdfbox/pdfparser/XrefTrailerResolver.XRefType.html" title="enum in org.apache.pdfbox.pdfparser">XrefTrailerResolver.XRefType</a></strong></code> |
| <div class="block">The XRefType of a trailer.</div> |
| </td> |
| </tr> |
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| <tr> |
| <th class="colOne" scope="col">Constructor and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><strong><a href="../../../../org/apache/pdfbox/pdfparser/XrefTrailerResolver.html#XrefTrailerResolver()">XrefTrailerResolver</a></strong>()</code> </td> |
| </tr> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
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| <td class="colFirst"><code><a href="http://download.oracle.com/javase/1.6.0/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a><<a href="http://download.oracle.com/javase/1.6.0/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>></code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/pdfbox/pdfparser/XrefTrailerResolver.html#getContainedObjectNumbers(int)">getContainedObjectNumbers</a></strong>(int objstmObjNr)</code> |
| <div class="block">Returns object numbers which are referenced as contained |
| in object stream with specified object number.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../org/apache/pdfbox/cos/COSDictionary.html" title="class in org.apache.pdfbox.cos">COSDictionary</a></code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/pdfbox/pdfparser/XrefTrailerResolver.html#getCurrentTrailer()">getCurrentTrailer</a></strong>()</code> |
| <div class="block">Returns the trailer last set by <a href="../../../../org/apache/pdfbox/pdfparser/XrefTrailerResolver.html#setTrailer(org.apache.pdfbox.cos.COSDictionary)"><code>setTrailer(COSDictionary)</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><a href="../../../../org/apache/pdfbox/cos/COSDictionary.html" title="class in org.apache.pdfbox.cos">COSDictionary</a></code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/pdfbox/pdfparser/XrefTrailerResolver.html#getFirstTrailer()">getFirstTrailer</a></strong>()</code> |
| <div class="block">Returns the first trailer if at least one exists.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../org/apache/pdfbox/cos/COSDictionary.html" title="class in org.apache.pdfbox.cos">COSDictionary</a></code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/pdfbox/pdfparser/XrefTrailerResolver.html#getLastTrailer()">getLastTrailer</a></strong>()</code> |
| <div class="block">Returns the last trailer if at least one exists.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><a href="../../../../org/apache/pdfbox/cos/COSDictionary.html" title="class in org.apache.pdfbox.cos">COSDictionary</a></code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/pdfbox/pdfparser/XrefTrailerResolver.html#getTrailer()">getTrailer</a></strong>()</code> |
| <div class="block">Gets the resolved trailer.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><a href="http://download.oracle.com/javase/1.6.0/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<a href="../../../../org/apache/pdfbox/cos/COSObjectKey.html" title="class in org.apache.pdfbox.cos">COSObjectKey</a>,<a href="http://download.oracle.com/javase/1.6.0/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>></code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/pdfbox/pdfparser/XrefTrailerResolver.html#getXrefTable()">getXrefTable</a></strong>()</code> |
| <div class="block">Gets the resolved xref table.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><a href="../../../../org/apache/pdfbox/pdfparser/XrefTrailerResolver.XRefType.html" title="enum in org.apache.pdfbox.pdfparser">XrefTrailerResolver.XRefType</a></code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/pdfbox/pdfparser/XrefTrailerResolver.html#getXrefType()">getXrefType</a></strong>()</code> |
| <div class="block">Returns the XRefTxpe of the resolved trailer.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/pdfbox/pdfparser/XrefTrailerResolver.html#nextXrefObj(long,%20org.apache.pdfbox.pdfparser.XrefTrailerResolver.XRefType)">nextXrefObj</a></strong>(long startBytePos, |
| <a href="../../../../org/apache/pdfbox/pdfparser/XrefTrailerResolver.XRefType.html" title="enum in org.apache.pdfbox.pdfparser">XrefTrailerResolver.XRefType</a> type)</code> |
| <div class="block">Signals that a new XRef object (table or stream) starts.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/pdfbox/pdfparser/XrefTrailerResolver.html#setStartxref(long)">setStartxref</a></strong>(long startxrefBytePosValue)</code> |
| <div class="block">Sets the byte position of the first XRef |
| (has to be called after very last startxref was read).</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/pdfbox/pdfparser/XrefTrailerResolver.html#setTrailer(org.apache.pdfbox.cos.COSDictionary)">setTrailer</a></strong>(<a href="../../../../org/apache/pdfbox/cos/COSDictionary.html" title="class in org.apache.pdfbox.cos">COSDictionary</a> trailer)</code> |
| <div class="block">Adds trailer information for current XRef object.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/pdfbox/pdfparser/XrefTrailerResolver.html#setXRef(org.apache.pdfbox.cos.COSObjectKey,%20long)">setXRef</a></strong>(<a href="../../../../org/apache/pdfbox/cos/COSObjectKey.html" title="class in org.apache.pdfbox.cos">COSObjectKey</a> objKey, |
| long offset)</code> |
| <div class="block">Populate XRef HashMap of current XRef object.</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="methods_inherited_from_class_java.lang.Object"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class java.lang.<a href="http://download.oracle.com/javase/1.6.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3> |
| <code><a href="http://download.oracle.com/javase/1.6.0/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</a>, <a href="http://download.oracle.com/javase/1.6.0/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://download.oracle.com/javase/1.6.0/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</a>, <a href="http://download.oracle.com/javase/1.6.0/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</a>, <a href="http://download.oracle.com/javase/1.6.0/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</a>, <a href="http://download.oracle.com/javase/1.6.0/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</a>, <a href="http://download.oracle.com/javase/1.6.0/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</a>, <a href="http://download.oracle.com/javase/1.6.0/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</a>, <a href="http://download.oracle.com/javase/1.6.0/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</a>, <a href="http://download.oracle.com/javase/1.6.0/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</a>, <a href="http://download.oracle.com/javase/1.6.0/docs/api/java/lang/Object.html?is-external=true#wait(long,%20int)" title="class or interface in java.lang">wait</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="constructor_detail"> |
| <!-- --> |
| </a> |
| <h3>Constructor Detail</h3> |
| <a name="XrefTrailerResolver()"> |
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| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>XrefTrailerResolver</h4> |
| <pre>public XrefTrailerResolver()</pre> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| <!-- ============ METHOD DETAIL ========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="method_detail"> |
| <!-- --> |
| </a> |
| <h3>Method Detail</h3> |
| <a name="getFirstTrailer()"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getFirstTrailer</h4> |
| <pre>public final <a href="../../../../org/apache/pdfbox/cos/COSDictionary.html" title="class in org.apache.pdfbox.cos">COSDictionary</a> getFirstTrailer()</pre> |
| <div class="block">Returns the first trailer if at least one exists.</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>the first trailer or null</dd></dl> |
| </li> |
| </ul> |
| <a name="getLastTrailer()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getLastTrailer</h4> |
| <pre>public final <a href="../../../../org/apache/pdfbox/cos/COSDictionary.html" title="class in org.apache.pdfbox.cos">COSDictionary</a> getLastTrailer()</pre> |
| <div class="block">Returns the last trailer if at least one exists.</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>the last trailer ir null</dd></dl> |
| </li> |
| </ul> |
| <a name="nextXrefObj(long, org.apache.pdfbox.pdfparser.XrefTrailerResolver.XRefType)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>nextXrefObj</h4> |
| <pre>public void nextXrefObj(long startBytePos, |
| <a href="../../../../org/apache/pdfbox/pdfparser/XrefTrailerResolver.XRefType.html" title="enum in org.apache.pdfbox.pdfparser">XrefTrailerResolver.XRefType</a> type)</pre> |
| <div class="block">Signals that a new XRef object (table or stream) starts.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>startBytePos</code> - the offset to start at</dd><dd><code>type</code> - the type of the Xref object</dd></dl> |
| </li> |
| </ul> |
| <a name="getXrefType()"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getXrefType</h4> |
| <pre>public <a href="../../../../org/apache/pdfbox/pdfparser/XrefTrailerResolver.XRefType.html" title="enum in org.apache.pdfbox.pdfparser">XrefTrailerResolver.XRefType</a> getXrefType()</pre> |
| <div class="block">Returns the XRefTxpe of the resolved trailer.</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>the XRefType or null.</dd></dl> |
| </li> |
| </ul> |
| <a name="setXRef(org.apache.pdfbox.cos.COSObjectKey, long)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>setXRef</h4> |
| <pre>public void setXRef(<a href="../../../../org/apache/pdfbox/cos/COSObjectKey.html" title="class in org.apache.pdfbox.cos">COSObjectKey</a> objKey, |
| long offset)</pre> |
| <div class="block">Populate XRef HashMap of current XRef object. |
| Will add an Xreftable entry that maps ObjectKeys to byte offsets in the file.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>objKey</code> - The objkey, with id and gen numbers</dd><dd><code>offset</code> - The byte offset in this file</dd></dl> |
| </li> |
| </ul> |
| <a name="setTrailer(org.apache.pdfbox.cos.COSDictionary)"> |
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| </a> |
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| <li class="blockList"> |
| <h4>setTrailer</h4> |
| <pre>public void setTrailer(<a href="../../../../org/apache/pdfbox/cos/COSDictionary.html" title="class in org.apache.pdfbox.cos">COSDictionary</a> trailer)</pre> |
| <div class="block">Adds trailer information for current XRef object.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>trailer</code> - the current document trailer dictionary</dd></dl> |
| </li> |
| </ul> |
| <a name="getCurrentTrailer()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getCurrentTrailer</h4> |
| <pre>public <a href="../../../../org/apache/pdfbox/cos/COSDictionary.html" title="class in org.apache.pdfbox.cos">COSDictionary</a> getCurrentTrailer()</pre> |
| <div class="block">Returns the trailer last set by <a href="../../../../org/apache/pdfbox/pdfparser/XrefTrailerResolver.html#setTrailer(org.apache.pdfbox.cos.COSDictionary)"><code>setTrailer(COSDictionary)</code></a>.</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>the current trailer.</dd></dl> |
| </li> |
| </ul> |
| <a name="setStartxref(long)"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>setStartxref</h4> |
| <pre>public void setStartxref(long startxrefBytePosValue)</pre> |
| <div class="block">Sets the byte position of the first XRef |
| (has to be called after very last startxref was read). |
| This is used to resolve chain of active XRef/trailer. |
| |
| In case startxref position is not found we output a |
| warning and use all XRef/trailer objects combined |
| in byte position order. |
| Thus for incomplete PDF documents with missing |
| startxref one could call this method with parameter value -1.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>startxrefBytePosValue</code> - starting position of the first XRef</dd></dl> |
| </li> |
| </ul> |
| <a name="getTrailer()"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>getTrailer</h4> |
| <pre>public <a href="../../../../org/apache/pdfbox/cos/COSDictionary.html" title="class in org.apache.pdfbox.cos">COSDictionary</a> getTrailer()</pre> |
| <div class="block">Gets the resolved trailer. Might return <code>null</code> in case |
| <a href="../../../../org/apache/pdfbox/pdfparser/XrefTrailerResolver.html#setStartxref(long)"><code>setStartxref(long)</code></a> was not called before.</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>the trailer if available</dd></dl> |
| </li> |
| </ul> |
| <a name="getXrefTable()"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getXrefTable</h4> |
| <pre>public <a href="http://download.oracle.com/javase/1.6.0/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<a href="../../../../org/apache/pdfbox/cos/COSObjectKey.html" title="class in org.apache.pdfbox.cos">COSObjectKey</a>,<a href="http://download.oracle.com/javase/1.6.0/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>> getXrefTable()</pre> |
| <div class="block">Gets the resolved xref table. Might return <code>null</code> in case |
| <a href="../../../../org/apache/pdfbox/pdfparser/XrefTrailerResolver.html#setStartxref(long)"><code>setStartxref(long)</code></a> was not called before.</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>the xrefTable if available</dd></dl> |
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| <a name="getContainedObjectNumbers(int)"> |
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| <h4>getContainedObjectNumbers</h4> |
| <pre>public <a href="http://download.oracle.com/javase/1.6.0/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a><<a href="http://download.oracle.com/javase/1.6.0/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>> getContainedObjectNumbers(int objstmObjNr)</pre> |
| <div class="block">Returns object numbers which are referenced as contained |
| in object stream with specified object number. |
| |
| This will scan resolved xref table for all entries having negated |
| stream object number as value.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>objstmObjNr</code> - object number of object stream for which contained object numbers |
| should be returned</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>set of object numbers referenced for given object stream |
| or <code>null</code> if <a href="../../../../org/apache/pdfbox/pdfparser/XrefTrailerResolver.html#setStartxref(long)"><code>setStartxref(long)</code></a> was not |
| called before so that no resolved xref table exists</dd></dl> |
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