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SUMMARY:&nbsp;NESTED&nbsp;|&nbsp;<A HREF="#fields_inherited_from_class_org.apache.xml.utils.ObjectVector">FIELD</A>&nbsp;|&nbsp;<A HREF="#constructor_summary">CONSTR</A>&nbsp;|&nbsp;<A HREF="#method_summary">METHOD</A></FONT></TD>
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org.apache.xml.utils</FONT>
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Class ObjectStack</H2>
<PRE>
java.lang.Object
<IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../org/apache/xml/utils/ObjectVector.html" title="class in org.apache.xml.utils">org.apache.xml.utils.ObjectVector</A>
<IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.xml.utils.ObjectStack</B>
</PRE>
<DL>
<DT><B>All Implemented Interfaces:</B> <DD>java.lang.Cloneable</DD>
</DL>
<HR>
<DL>
<DT><PRE>public class <A HREF="../../../../src-html/org/apache/xml/utils/ObjectStack.html#line.34"><B>ObjectStack</B></A><DT>extends <A HREF="../../../../org/apache/xml/utils/ObjectVector.html" title="class in org.apache.xml.utils">ObjectVector</A></DL>
</PRE>
<P>
Implement a stack of simple integers.
%OPT%
This is currently based on ObjectVector, which permits fast acess but pays a
heavy recopying penalty if/when its size is increased. If we expect deep
stacks, we should consider a version based on ChunkedObjectVector.
<P>
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&nbsp;<A NAME="fields_inherited_from_class_org.apache.xml.utils.ObjectVector"><!-- --></A>
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<TH ALIGN="left"><B>Fields inherited from class org.apache.xml.utils.<A HREF="../../../../org/apache/xml/utils/ObjectVector.html" title="class in org.apache.xml.utils">ObjectVector</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../org/apache/xml/utils/ObjectVector.html#m_blocksize">m_blocksize</A>, <A HREF="../../../../org/apache/xml/utils/ObjectVector.html#m_firstFree">m_firstFree</A>, <A HREF="../../../../org/apache/xml/utils/ObjectVector.html#m_map">m_map</A>, <A HREF="../../../../org/apache/xml/utils/ObjectVector.html#m_mapSize">m_mapSize</A></CODE></TD>
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<TD><CODE><B><A HREF="../../../../org/apache/xml/utils/ObjectStack.html#ObjectStack()">ObjectStack</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Default constructor.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../../org/apache/xml/utils/ObjectStack.html#ObjectStack(int)">ObjectStack</A></B>(int&nbsp;blocksize)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Construct a ObjectVector, using the given block size.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../../org/apache/xml/utils/ObjectStack.html#ObjectStack(org.apache.xml.utils.ObjectStack)">ObjectStack</A></B>(<A HREF="../../../../org/apache/xml/utils/ObjectStack.html" title="class in org.apache.xml.utils">ObjectStack</A>&nbsp;v)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Copy constructor for ObjectStack</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.lang.Object</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/xml/utils/ObjectStack.html#clone()">clone</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns clone of current ObjectStack</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/xml/utils/ObjectStack.html#empty()">empty</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tests if this stack is empty.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.lang.Object</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/xml/utils/ObjectStack.html#peek()">peek</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Looks at the object at the top of this stack without removing it
from the stack.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.lang.Object</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/xml/utils/ObjectStack.html#peek(int)">peek</A></B>(int&nbsp;n)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Looks at the object at the position the stack counting down n items.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.lang.Object</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/xml/utils/ObjectStack.html#pop()">pop</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Removes the object at the top of this stack and returns that
object as the value of this function.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.lang.Object</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/xml/utils/ObjectStack.html#push(java.lang.Object)">push</A></B>(java.lang.Object&nbsp;i)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pushes an item onto the top of this stack.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/xml/utils/ObjectStack.html#quickPop(int)">quickPop</A></B>(int&nbsp;n)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Quickly pops a number of items from the stack.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/xml/utils/ObjectStack.html#search(java.lang.Object)">search</A></B>(java.lang.Object&nbsp;o)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns where an object is on this stack.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/xml/utils/ObjectStack.html#setTop(java.lang.Object)">setTop</A></B>(java.lang.Object&nbsp;val)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets an object at a the top of the statck</TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_org.apache.xml.utils.ObjectVector"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from class org.apache.xml.utils.<A HREF="../../../../org/apache/xml/utils/ObjectVector.html" title="class in org.apache.xml.utils">ObjectVector</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../org/apache/xml/utils/ObjectVector.html#addElement(java.lang.Object)">addElement</A>, <A HREF="../../../../org/apache/xml/utils/ObjectVector.html#addElements(int)">addElements</A>, <A HREF="../../../../org/apache/xml/utils/ObjectVector.html#addElements(java.lang.Object, int)">addElements</A>, <A HREF="../../../../org/apache/xml/utils/ObjectVector.html#contains(java.lang.Object)">contains</A>, <A HREF="../../../../org/apache/xml/utils/ObjectVector.html#elementAt(int)">elementAt</A>, <A HREF="../../../../org/apache/xml/utils/ObjectVector.html#indexOf(java.lang.Object)">indexOf</A>, <A HREF="../../../../org/apache/xml/utils/ObjectVector.html#indexOf(java.lang.Object, int)">indexOf</A>, <A HREF="../../../../org/apache/xml/utils/ObjectVector.html#insertElementAt(java.lang.Object, int)">insertElementAt</A>, <A HREF="../../../../org/apache/xml/utils/ObjectVector.html#lastIndexOf(java.lang.Object)">lastIndexOf</A>, <A HREF="../../../../org/apache/xml/utils/ObjectVector.html#removeAllElements()">removeAllElements</A>, <A HREF="../../../../org/apache/xml/utils/ObjectVector.html#removeElement(java.lang.Object)">removeElement</A>, <A HREF="../../../../org/apache/xml/utils/ObjectVector.html#removeElementAt(int)">removeElementAt</A>, <A HREF="../../../../org/apache/xml/utils/ObjectVector.html#setElementAt(java.lang.Object, int)">setElementAt</A>, <A HREF="../../../../org/apache/xml/utils/ObjectVector.html#setSize(int)">setSize</A>, <A HREF="../../../../org/apache/xml/utils/ObjectVector.html#setToSize(int)">setToSize</A>, <A HREF="../../../../org/apache/xml/utils/ObjectVector.html#size()">size</A></CODE></TD>
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<TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH>
</TR>
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<TD><CODE>equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
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&nbsp;
<P>
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<A NAME="ObjectStack()"><!-- --></A><H3>
ObjectStack</H3>
<PRE>
public <A HREF="../../../../src-html/org/apache/xml/utils/ObjectStack.html#line.41"><B>ObjectStack</B></A>()</PRE>
<DL>
<DD>Default constructor. Note that the default
block size is very small, for small lists.
<P>
</DL>
<HR>
<A NAME="ObjectStack(int)"><!-- --></A><H3>
ObjectStack</H3>
<PRE>
public <A HREF="../../../../src-html/org/apache/xml/utils/ObjectStack.html#line.51"><B>ObjectStack</B></A>(int&nbsp;blocksize)</PRE>
<DL>
<DD>Construct a ObjectVector, using the given block size.
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>blocksize</CODE> - Size of block to allocate</DL>
</DL>
<HR>
<A NAME="ObjectStack(org.apache.xml.utils.ObjectStack)"><!-- --></A><H3>
ObjectStack</H3>
<PRE>
public <A HREF="../../../../src-html/org/apache/xml/utils/ObjectStack.html#line.61"><B>ObjectStack</B></A>(<A HREF="../../../../org/apache/xml/utils/ObjectStack.html" title="class in org.apache.xml.utils">ObjectStack</A>&nbsp;v)</PRE>
<DL>
<DD>Copy constructor for ObjectStack
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>v</CODE> - ObjectStack to copy</DL>
</DL>
<!-- ============ METHOD DETAIL ========== -->
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<A NAME="push(java.lang.Object)"><!-- --></A><H3>
push</H3>
<PRE>
public java.lang.Object <A HREF="../../../../src-html/org/apache/xml/utils/ObjectStack.html#line.72"><B>push</B></A>(java.lang.Object&nbsp;i)</PRE>
<DL>
<DD>Pushes an item onto the top of this stack.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>i</CODE> - the int to be pushed onto this stack.
<DT><B>Returns:</B><DD>the <code>item</code> argument.</DL>
</DD>
</DL>
<HR>
<A NAME="pop()"><!-- --></A><H3>
pop</H3>
<PRE>
public java.lang.Object <A HREF="../../../../src-html/org/apache/xml/utils/ObjectStack.html#line.99"><B>pop</B></A>()</PRE>
<DL>
<DD>Removes the object at the top of this stack and returns that
object as the value of this function.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>The object at the top of this stack.</DL>
</DD>
</DL>
<HR>
<A NAME="quickPop(int)"><!-- --></A><H3>
quickPop</H3>
<PRE>
public void <A HREF="../../../../src-html/org/apache/xml/utils/ObjectStack.html#line.111"><B>quickPop</B></A>(int&nbsp;n)</PRE>
<DL>
<DD>Quickly pops a number of items from the stack.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="peek()"><!-- --></A><H3>
peek</H3>
<PRE>
public java.lang.Object <A HREF="../../../../src-html/org/apache/xml/utils/ObjectStack.html#line.123"><B>peek</B></A>()</PRE>
<DL>
<DD>Looks at the object at the top of this stack without removing it
from the stack.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the object at the top of this stack.
<DT><B>Throws:</B>
<DD><CODE>java.util.EmptyStackException</CODE> - if this stack is empty.</DL>
</DD>
</DL>
<HR>
<A NAME="peek(int)"><!-- --></A><H3>
peek</H3>
<PRE>
public java.lang.Object <A HREF="../../../../src-html/org/apache/xml/utils/ObjectStack.html#line.141"><B>peek</B></A>(int&nbsp;n)</PRE>
<DL>
<DD>Looks at the object at the position the stack counting down n items.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>n</CODE> - The number of items down, indexed from zero.
<DT><B>Returns:</B><DD>the object at n items down.
<DT><B>Throws:</B>
<DD><CODE>java.util.EmptyStackException</CODE> - if this stack is empty.</DL>
</DD>
</DL>
<HR>
<A NAME="setTop(java.lang.Object)"><!-- --></A><H3>
setTop</H3>
<PRE>
public void <A HREF="../../../../src-html/org/apache/xml/utils/ObjectStack.html#line.159"><B>setTop</B></A>(java.lang.Object&nbsp;val)</PRE>
<DL>
<DD>Sets an object at a the top of the statck
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>val</CODE> - object to set at the top
<DT><B>Throws:</B>
<DD><CODE>java.util.EmptyStackException</CODE> - if this stack is empty.</DL>
</DD>
</DL>
<HR>
<A NAME="empty()"><!-- --></A><H3>
empty</H3>
<PRE>
public boolean <A HREF="../../../../src-html/org/apache/xml/utils/ObjectStack.html#line.177"><B>empty</B></A>()</PRE>
<DL>
<DD>Tests if this stack is empty.
<P>
<DD><DL>
<DT><B>Returns:</B><DD><code>true</code> if this stack is empty;
<code>false</code> otherwise.<DT><B>Since:</B></DT>
<DD>JDK1.0</DD>
</DL>
</DD>
</DL>
<HR>
<A NAME="search(java.lang.Object)"><!-- --></A><H3>
search</H3>
<PRE>
public int <A HREF="../../../../src-html/org/apache/xml/utils/ObjectStack.html#line.191"><B>search</B></A>(java.lang.Object&nbsp;o)</PRE>
<DL>
<DD>Returns where an object is on this stack.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>o</CODE> - the desired object.
<DT><B>Returns:</B><DD>the distance from the top of the stack where the object is]
located; the return value <code>-1</code> indicates that the
object is not on the stack.<DT><B>Since:</B></DT>
<DD>JDK1.0</DD>
</DL>
</DD>
</DL>
<HR>
<A NAME="clone()"><!-- --></A><H3>
clone</H3>
<PRE>
public java.lang.Object <A HREF="../../../../src-html/org/apache/xml/utils/ObjectStack.html#line.209"><B>clone</B></A>()
throws java.lang.CloneNotSupportedException</PRE>
<DL>
<DD>Returns clone of current ObjectStack
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../org/apache/xml/utils/ObjectVector.html#clone()">clone</A></CODE> in class <CODE><A HREF="../../../../org/apache/xml/utils/ObjectVector.html" title="class in org.apache.xml.utils">ObjectVector</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>clone of current ObjectStack
<DT><B>Throws:</B>
<DD><CODE>java.lang.CloneNotSupportedException</CODE></DL>
</DD>
</DL>
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