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EventPushingWatch
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SUMMARY: NESTED | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD>
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com.saxonica.stream.watch</FONT>
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Class EventPushingWatch</H2>
<PRE>
<A HREF="http://download.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="../../../../com/saxonica/validate/AbstractWatch.html" title="class in com.saxonica.validate">com.saxonica.validate.AbstractWatch</A>
<IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>com.saxonica.stream.watch.EventPushingWatch</B>
</PRE>
<DL>
<DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../com/saxonica/stream/watch/Watch.html" title="interface in com.saxonica.stream.watch">Watch</A></DD>
</DL>
<DL>
<DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../../com/saxonica/stream/watch/ApplyTemplatesWatch.html" title="class in com.saxonica.stream.watch">ApplyTemplatesWatch</A>, <A HREF="../../../../com/saxonica/stream/watch/ForEachWatch.html" title="class in com.saxonica.stream.watch">ForEachWatch</A>, <A HREF="../../../../com/saxonica/stream/watch/IterateWatch.html" title="class in com.saxonica.stream.watch">IterateWatch</A></DD>
</DL>
<HR>
<DL>
<DT><PRE>public abstract class <B>EventPushingWatch</B><DT>extends <A HREF="../../../../com/saxonica/validate/AbstractWatch.html" title="class in com.saxonica.validate">AbstractWatch</A></DL>
</PRE>
<P>
A EvaluatingWatch is a Watch that evaluates an expression based on the nodes encountered
in a streamed input document, appending the value of that expression to the Watch for the
next expression in the streaming route.
<P>
<P>
<HR>
<P>
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
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<TD><CODE><B><A HREF="../../../../com/saxonica/stream/watch/EventPushingWatch.html#EventPushingWatch(net.sf.saxon.expr.Expression, net.sf.saxon.event.SequenceReceiver, java.util.Stack)">EventPushingWatch</A></B>(<A HREF="../../../../net/sf/saxon/expr/Expression.html" title="class in net.sf.saxon.expr">Expression</A> expression,
<A HREF="../../../../net/sf/saxon/event/SequenceReceiver.html" title="class in net.sf.saxon.event">SequenceReceiver</A> result,
<A HREF="http://download.oracle.com/javase/6/docs/api/java/util/Stack.html?is-external=true" title="class or interface in java.util">Stack</A><<A HREF="../../../../net/sf/saxon/expr/XPathContext.html" title="interface in net.sf.saxon.expr">XPathContext</A>> contextStack)</CODE>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/saxonica/stream/watch/EventPushingWatch.html#close()">close</A></B>()</CODE>
<BR>
The close() method is called immediately before the Watch is destroyed, that is,
when the element whose declaration scopes the constraint implemented by this
Watch goes out of scope.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../net/sf/saxon/expr/XPathContext.html" title="interface in net.sf.saxon.expr">XPathContext</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/saxonica/stream/watch/EventPushingWatch.html#getContext()">getContext</A></B>()</CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="http://download.oracle.com/javase/6/docs/api/java/util/Stack.html?is-external=true" title="class or interface in java.util">Stack</A><<A HREF="../../../../net/sf/saxon/expr/XPathContext.html" title="interface in net.sf.saxon.expr">XPathContext</A>></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/saxonica/stream/watch/EventPushingWatch.html#getContextStack()">getContextStack</A></B>()</CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../net/sf/saxon/expr/Expression.html" title="class in net.sf.saxon.expr">Expression</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/saxonica/stream/watch/EventPushingWatch.html#getExpression()">getExpression</A></B>()</CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../net/sf/saxon/event/SequenceReceiver.html" title="class in net.sf.saxon.event">SequenceReceiver</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/saxonica/stream/watch/EventPushingWatch.html#getResult()">getResult</A></B>()</CODE>
<BR>
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/saxonica/stream/watch/EventPushingWatch.html#open()">open</A></B>()</CODE>
<BR>
Open the watch.</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="../../../../com/saxonica/stream/watch/EventPushingWatch.html#setParentExpressionFeed(com.saxonica.stream.feed.Feed)">setParentExpressionFeed</A></B>(<A HREF="../../../../com/saxonica/stream/feed/Feed.html" title="interface in com.saxonica.stream.feed">Feed</A> feed)</CODE>
<BR>
Set a feed to be notified when this watch is opened and closed.</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="../../../../com/saxonica/stream/watch/EventPushingWatch.html#setResult(net.sf.saxon.event.SequenceReceiver)">setResult</A></B>(<A HREF="../../../../net/sf/saxon/event/SequenceReceiver.html" title="class in net.sf.saxon.event">SequenceReceiver</A> result)</CODE>
<BR>
</TD>
</TR>
</TABLE>
<A NAME="methods_inherited_from_class_com.saxonica.validate.AbstractWatch"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from class com.saxonica.validate.<A HREF="../../../../com/saxonica/validate/AbstractWatch.html" title="class in com.saxonica.validate">AbstractWatch</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../com/saxonica/validate/AbstractWatch.html#getAnchorNode()">getAnchorNode</A>, <A HREF="../../../../com/saxonica/validate/AbstractWatch.html#getNamespaceResolver()">getNamespaceResolver</A>, <A HREF="../../../../com/saxonica/validate/AbstractWatch.html#getPipelineConfiguration()">getPipelineConfiguration</A>, <A HREF="../../../../com/saxonica/validate/AbstractWatch.html#getSelection()">getSelection</A>, <A HREF="../../../../com/saxonica/validate/AbstractWatch.html#notifySelectedLeafNode(com.saxonica.stream.om.FleetingNode, int)">notifySelectedLeafNode</A>, <A HREF="../../../../com/saxonica/validate/AbstractWatch.html#setAnchorNode(com.saxonica.stream.om.FleetingNode)">setAnchorNode</A>, <A HREF="../../../../com/saxonica/validate/AbstractWatch.html#setNamespaceResolver(net.sf.saxon.om.NamespaceResolver)">setNamespaceResolver</A>, <A HREF="../../../../com/saxonica/validate/AbstractWatch.html#setPipelineConfiguration(net.sf.saxon.event.PipelineConfiguration)">setPipelineConfiguration</A>, <A HREF="../../../../com/saxonica/validate/AbstractWatch.html#setSelection(net.sf.saxon.pattern.Pattern)">setSelection</A></CODE></TD>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="http://download.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://download.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://download.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://download.oracle.com/javase/6/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/6/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/6/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/6/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/6/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/6/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/6/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/6/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/6/docs/api/java/lang/Object.html?is-external=true#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD>
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<A NAME="methods_inherited_from_class_com.saxonica.stream.watch.Watch"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from interface com.saxonica.stream.watch.<A HREF="../../../../com/saxonica/stream/watch/Watch.html" title="interface in com.saxonica.stream.watch">Watch</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../com/saxonica/stream/watch/Watch.html#endSelectedParentNode(int)">endSelectedParentNode</A>, <A HREF="../../../../com/saxonica/stream/watch/Watch.html#startSelectedParentNode(com.saxonica.stream.om.FleetingNode, int)">startSelectedParentNode</A></CODE></TD>
</TR>
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<P>
<!-- ========= CONSTRUCTOR DETAIL ======== -->
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<A NAME="EventPushingWatch(net.sf.saxon.expr.Expression, net.sf.saxon.event.SequenceReceiver, java.util.Stack)"><!-- --></A><H3>
EventPushingWatch</H3>
<PRE>
public <B>EventPushingWatch</B>(<A HREF="../../../../net/sf/saxon/expr/Expression.html" title="class in net.sf.saxon.expr">Expression</A> expression,
<A HREF="../../../../net/sf/saxon/event/SequenceReceiver.html" title="class in net.sf.saxon.event">SequenceReceiver</A> result,
<A HREF="http://download.oracle.com/javase/6/docs/api/java/util/Stack.html?is-external=true" title="class or interface in java.util">Stack</A><<A HREF="../../../../net/sf/saxon/expr/XPathContext.html" title="interface in net.sf.saxon.expr">XPathContext</A>> contextStack)</PRE>
<DL>
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<!-- ============ METHOD DETAIL ========== -->
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<A NAME="setResult(net.sf.saxon.event.SequenceReceiver)"><!-- --></A><H3>
setResult</H3>
<PRE>
public void <B>setResult</B>(<A HREF="../../../../net/sf/saxon/event/SequenceReceiver.html" title="class in net.sf.saxon.event">SequenceReceiver</A> result)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getResult()"><!-- --></A><H3>
getResult</H3>
<PRE>
public <A HREF="../../../../net/sf/saxon/event/SequenceReceiver.html" title="class in net.sf.saxon.event">SequenceReceiver</A> <B>getResult</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getExpression()"><!-- --></A><H3>
getExpression</H3>
<PRE>
public <A HREF="../../../../net/sf/saxon/expr/Expression.html" title="class in net.sf.saxon.expr">Expression</A> <B>getExpression</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getContext()"><!-- --></A><H3>
getContext</H3>
<PRE>
public <A HREF="../../../../net/sf/saxon/expr/XPathContext.html" title="interface in net.sf.saxon.expr">XPathContext</A> <B>getContext</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getContextStack()"><!-- --></A><H3>
getContextStack</H3>
<PRE>
public <A HREF="http://download.oracle.com/javase/6/docs/api/java/util/Stack.html?is-external=true" title="class or interface in java.util">Stack</A><<A HREF="../../../../net/sf/saxon/expr/XPathContext.html" title="interface in net.sf.saxon.expr">XPathContext</A>> <B>getContextStack</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="setParentExpressionFeed(com.saxonica.stream.feed.Feed)"><!-- --></A><H3>
setParentExpressionFeed</H3>
<PRE>
public void <B>setParentExpressionFeed</B>(<A HREF="../../../../com/saxonica/stream/feed/Feed.html" title="interface in com.saxonica.stream.feed">Feed</A> feed)</PRE>
<DL>
<DD>Set a feed to be notified when this watch is opened and closed. Typically this feed is
a ComplexNodeEventFeed, which is responsible for outputting events representing the start and end
of constructed elements produced by a parent expression.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>feed</CODE> - the feed to be notified when this Watch is opened or closed.</DL>
</DD>
</DL>
<HR>
<A NAME="open()"><!-- --></A><H3>
open</H3>
<PRE>
public void <B>open</B>()
throws <A HREF="../../../../net/sf/saxon/trans/XPathException.html" title="class in net.sf.saxon.trans">XPathException</A></PRE>
<DL>
<DD><B>Description copied from class: <CODE><A HREF="../../../../com/saxonica/validate/AbstractWatch.html#open()">AbstractWatch</A></CODE></B></DD>
<DD>Open the watch. This is done at the point where it first starts watching for nodes
that match the selection.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../com/saxonica/stream/watch/Watch.html#open()">open</A></CODE> in interface <CODE><A HREF="../../../../com/saxonica/stream/watch/Watch.html" title="interface in com.saxonica.stream.watch">Watch</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../../com/saxonica/validate/AbstractWatch.html#open()">open</A></CODE> in class <CODE><A HREF="../../../../com/saxonica/validate/AbstractWatch.html" title="class in com.saxonica.validate">AbstractWatch</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../net/sf/saxon/trans/XPathException.html" title="class in net.sf.saxon.trans">XPathException</A></CODE></DL>
</DD>
</DL>
<HR>
<A NAME="close()"><!-- --></A><H3>
close</H3>
<PRE>
public void <B>close</B>()
throws <A HREF="../../../../net/sf/saxon/trans/XPathException.html" title="class in net.sf.saxon.trans">XPathException</A></PRE>
<DL>
<DD><B>Description copied from class: <CODE><A HREF="../../../../com/saxonica/validate/AbstractWatch.html#close()">AbstractWatch</A></CODE></B></DD>
<DD>The close() method is called immediately before the Watch is destroyed, that is,
when the element whose declaration scopes the constraint implemented by this
Watch goes out of scope. The default implementation does nothing.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../com/saxonica/stream/watch/Watch.html#close()">close</A></CODE> in interface <CODE><A HREF="../../../../com/saxonica/stream/watch/Watch.html" title="interface in com.saxonica.stream.watch">Watch</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../../com/saxonica/validate/AbstractWatch.html#close()">close</A></CODE> in class <CODE><A HREF="../../../../com/saxonica/validate/AbstractWatch.html" title="class in com.saxonica.validate">AbstractWatch</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../net/sf/saxon/trans/XPathException.html" title="class in net.sf.saxon.trans">XPathException</A></CODE></DL>
</DD>
</DL>
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