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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN">
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Xalan-Java 2: Package org.apache.xpath.axes
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<H2>
Package org.apache.xpath.axes
</H2>
Implementation of XPath LocationPath support -- primary classes are
LocPathIterator and UnionPathIterator.
<P>
<B>See: </B>
<BR>
<A HREF="#package_description"><B>Description</B></A>
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<TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%">
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<B>Interface Summary</B></FONT></TD>
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<TD WIDTH="15%"><B><A HREF="ContextNodeList.html"><I>ContextNodeList</I></A></B></TD>
<TD><i><font size="-1" color="#00FF00">**For advanced use only** </font></i><meta name="usage" content="advanced"/>
Classes who implement this interface can be a
<a href="http://www.w3.org/TR/xslt#dt-current-node-list">current node list</a>,
also refered to here as a <term>context node list</term>.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="SubContextList.html"><I>SubContextList</I></A></B></TD>
<TD><i><font size="-1" color="#00FF00">**For advanced use only** </font></i><meta name="usage" content="advanced"/>
A class that implements this interface is a sub context node list, meaning it
is a node list for a location path step for a predicate.</TD>
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<P>
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<TD COLSPAN=2><FONT SIZE="+2">
<B>Class Summary</B></FONT></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="AncestorOrSelfWalker.html">AncestorOrSelfWalker</A></B></TD>
<TD>Walker for the 'ancestor-or-self' axes.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="AncestorWalker.html">AncestorWalker</A></B></TD>
<TD>Walker for the 'ancestor' axes.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="AttributeIterator.html">AttributeIterator</A></B></TD>
<TD><i><font size="-1" color="#00FF00">**For advanced use only** </font></i><meta name="usage" content="advanced"/>
This class implements an optimized iterator for
attribute axes patterns.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="AttributeWalker.html">AttributeWalker</A></B></TD>
<TD>Walker for the 'attribute' axes.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="AttributeWalkerOneStep.html">AttributeWalkerOneStep</A></B></TD>
<TD><i><font size="-1" color="#00FF00">**For advanced use only** </font></i><meta name="usage" content="advanced"/>
This walker should be used when the walker is at the end of a location
path, or is the only step.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="AxesWalker.html">AxesWalker</A></B></TD>
<TD>Serves as common interface for axes Walkers, and stores common
state variables.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="ChildIterator.html">ChildIterator</A></B></TD>
<TD><i><font size="-1" color="#00FF00">**For advanced use only** </font></i><meta name="usage" content="advanced"/>
This class implements an optimized iterator for
"node()" patterns, that is, any children of the
context node.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="ChildTestIterator.html">ChildTestIterator</A></B></TD>
<TD><i><font size="-1" color="#00FF00">**For advanced use only** </font></i><meta name="usage" content="advanced"/>
This class implements an optimized iterator for
children patterns that have a node test, and possibly a predicate.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="ChildWalker.html">ChildWalker</A></B></TD>
<TD>Walker for the 'child' axes.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="ChildWalkerMultiStep.html">ChildWalkerMultiStep</A></B></TD>
<TD><i><font size="-1" color="#00FF00">**For advanced use only** </font></i><meta name="usage" content="advanced"/>
A child walker multistep is created while only child steps are found.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="ChildWalkerOneStep.html">ChildWalkerOneStep</A></B></TD>
<TD><i><font size="-1" color="#00FF00">**For advanced use only** </font></i><meta name="usage" content="advanced"/>
Walker to use when we only have one step, but it has a predicate.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="DescendantIterator.html">DescendantIterator</A></B></TD>
<TD><i><font size="-1" color="#00FF00">**For advanced use only** </font></i><meta name="usage" content="advanced"/>
This class implements an optimized iterator for
descendant, descendant-or-self, or "//foo" patterns.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="DescendantOrSelfWalker.html">DescendantOrSelfWalker</A></B></TD>
<TD>Walker for the 'descendant-or-self' axes.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="DescendantWalker.html">DescendantWalker</A></B></TD>
<TD>Walker for the 'descendant' axes.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="FilterExprWalker.html">FilterExprWalker</A></B></TD>
<TD>Walker for the OP_VARIABLE, or OP_EXTFUNCTION, or OP_FUNCTION, or OP_GROUP,
op codes.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="FollowingSiblingWalker.html">FollowingSiblingWalker</A></B></TD>
<TD>Walker for the 'following-sibling' axes.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="FollowingWalker.html">FollowingWalker</A></B></TD>
<TD>Walker for the 'following' axes.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="LocPathIterator.html">LocPathIterator</A></B></TD>
<TD><i><font size="-1" color="#00FF00">**For advanced use only** </font></i><meta name="usage" content="advanced"/>
This class extends NodeSet, which implements NodeIterator,
and fetches nodes one at a time in document order based on a XPath
<a href="http://www.w3.org/TR/xpath#NT-LocationPath>LocationPath</a>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="NamespaceWalker.html">NamespaceWalker</A></B></TD>
<TD>Walker for the 'namespace' axes.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="ParentWalker.html">ParentWalker</A></B></TD>
<TD>Walker for the 'parent' axes.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="PrecedingSiblingWalker.html">PrecedingSiblingWalker</A></B></TD>
<TD>Walker for the 'preceding-sibling' axes.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="PrecedingWalker.html">PrecedingWalker</A></B></TD>
<TD>Walker for the 'preceding' axes.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="PredicatedNodeTest.html">PredicatedNodeTest</A></B></TD>
<TD> </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="ReverseAxesWalker.html">ReverseAxesWalker</A></B></TD>
<TD>Walker for a reverse axes.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="RootWalker.html">RootWalker</A></B></TD>
<TD>Walker for the FROM_ROOT axes.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="RootWalkerMultiStep.html">RootWalkerMultiStep</A></B></TD>
<TD>This class extends ChildWalkerMultiStep to handle the root step of
patterns such as "/foo/baz" where the first step is the root, and the
rest of the steps are simple child steps.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="SelfWalker.html">SelfWalker</A></B></TD>
<TD>Walker for the 'self' axes.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="SelfWalkerOneStep.html">SelfWalkerOneStep</A></B></TD>
<TD><i><font size="-1" color="#00FF00">**For advanced use only** </font></i><meta name="usage" content="advanced"/>
Class SelfWalkerOneStep
<needs-description/></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="UnionPathIterator.html">UnionPathIterator</A></B></TD>
<TD><i><font size="-1" color="#00FF00">**For advanced use only** </font></i><meta name="usage" content="advanced"/>
This class extends NodeSet, which implements NodeIterator,
and fetches nodes one at a time in document order based on a XPath
<a href="http://www.w3.org/TR/xpath#NT-UnionExpr">UnionExpr</a>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="WalkerFactory.html">WalkerFactory</A></B></TD>
<TD>This class is both a factory for XPath location path expressions,
which are built from the opcode map output, and an analysis engine
for the location path expressions in order to provide optimization hints.</TD>
</TR>
</TABLE>
<P>
<A NAME="package_description"><!-- --></A><H2>
Package org.apache.xpath.axes Description
</H2>
<P>
<p>Implementation of XPath LocationPath support -- primary classes are
LocPathIterator and UnionPathIterator.<p>
<P>
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