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saxon-manual-9.4.0.9-2.mga7.noarch.rpm

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EventFeed
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com.saxonica.stream.feed</FONT>
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Class EventFeed</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 "><B>com.saxonica.stream.feed.EventFeed</B>
</PRE>
<DL>
<DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../com/saxonica/stream/feed/Feed.html" title="interface in com.saxonica.stream.feed">Feed</A></DD>
</DL>
<DL>
<DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../../com/saxonica/stream/feed/ComplexNodeEventFeed.html" title="class in com.saxonica.stream.feed">ComplexNodeEventFeed</A>, <A HREF="../../../../com/saxonica/stream/watch/ForkingFeed.html" title="class in com.saxonica.stream.watch">ForkingFeed</A></DD>
</DL>
<HR>
<DL>
<DT><PRE>public abstract class <B>EventFeed</B><DT>extends <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><DT>implements <A HREF="../../../../com/saxonica/stream/feed/Feed.html" title="interface in com.saxonica.stream.feed">Feed</A></DL>
</PRE>

<P>
An EventFeed evaluates an expression in "decomposed push" mode. Its streaming input
 is supplied via a sequence of calls that notify individual events
 in the input sequence, and its output is (in most cases) delivered via a sequence of
 calls to the receiver representing the parent expression. The exception is
 the FeedToReceiver class which appends the supplied items to a Receiver.
<P>

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<!-- ======== CONSTRUCTOR SUMMARY ======== -->

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<TD><CODE><B><A HREF="../../../../com/saxonica/stream/feed/EventFeed.html#EventFeed(net.sf.saxon.expr.Expression, com.saxonica.stream.feed.Feed, java.util.Stack)">EventFeed</A></B>(<A HREF="../../../../net/sf/saxon/expr/Expression.html" title="class in net.sf.saxon.expr">Expression</A>&nbsp;exp,
          <A HREF="../../../../com/saxonica/stream/feed/Feed.html" title="interface in com.saxonica.stream.feed">Feed</A>&nbsp;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>&lt;<A HREF="../../../../net/sf/saxon/expr/XPathContext.html" title="interface in net.sf.saxon.expr">XPathContext</A>&gt;&nbsp;contextStack)</CODE>

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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/saxonica/stream/feed/EventFeed.html#append(net.sf.saxon.om.Item)">append</A></B>(<A HREF="../../../../net/sf/saxon/om/Item.html" title="interface in net.sf.saxon.om">Item</A>&nbsp;item)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Append an item (node or atomic value) to the output</TD>
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<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="../../../../com/saxonica/stream/feed/EventFeed.html#close()">close</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Finish evaluating the expression.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<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/feed/EventFeed.html#getContext()">getContext</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the dynamic evaluation context</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<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>&lt;<A HREF="../../../../net/sf/saxon/expr/XPathContext.html" title="interface in net.sf.saxon.expr">XPathContext</A>&gt;</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/saxonica/stream/feed/EventFeed.html#getContextStack()">getContextStack</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the stack of XPathContext objects</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<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/feed/EventFeed.html#getExpression()">getExpression</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the expression being evaluated by this EventFeed</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../../net/sf/saxon/event/PipelineConfiguration.html" title="class in net.sf.saxon.event">PipelineConfiguration</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/saxonica/stream/feed/EventFeed.html#getPipelineConfiguration()">getPipelineConfiguration</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the pipeline configuration</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../../com/saxonica/stream/feed/Feed.html" title="interface in com.saxonica.stream.feed">Feed</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/saxonica/stream/feed/EventFeed.html#getResult()">getResult</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the parent expression feed</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="../../../../com/saxonica/stream/feed/EventFeed.html#open()">open</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Start evaluating the expression.</TD>
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<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="../../../../com/saxonica/stream/feed/EventFeed.html#setPipelineConfiguration(net.sf.saxon.event.PipelineConfiguration)">setPipelineConfiguration</A></B>(<A HREF="../../../../net/sf/saxon/event/PipelineConfiguration.html" title="class in net.sf.saxon.event">PipelineConfiguration</A>&nbsp;pipe)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Set the pipeline configuration</TD>
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<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="EventFeed(net.sf.saxon.expr.Expression, com.saxonica.stream.feed.Feed, java.util.Stack)"><!-- --></A><H3>
EventFeed</H3>
<PRE>
public <B>EventFeed</B>(<A HREF="../../../../net/sf/saxon/expr/Expression.html" title="class in net.sf.saxon.expr">Expression</A>&nbsp;exp,
                 <A HREF="../../../../com/saxonica/stream/feed/Feed.html" title="interface in com.saxonica.stream.feed">Feed</A>&nbsp;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>&lt;<A HREF="../../../../net/sf/saxon/expr/XPathContext.html" title="interface in net.sf.saxon.expr">XPathContext</A>&gt;&nbsp;contextStack)</PRE>
<DL>
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<A NAME="setPipelineConfiguration(net.sf.saxon.event.PipelineConfiguration)"><!-- --></A><H3>
setPipelineConfiguration</H3>
<PRE>
public void <B>setPipelineConfiguration</B>(<A HREF="../../../../net/sf/saxon/event/PipelineConfiguration.html" title="class in net.sf.saxon.event">PipelineConfiguration</A>&nbsp;pipe)</PRE>
<DL>
<DD>Set the pipeline configuration
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>pipe</CODE> - the pipeline configuration</DL>
</DD>
</DL>
<HR>

<A NAME="getPipelineConfiguration()"><!-- --></A><H3>
getPipelineConfiguration</H3>
<PRE>
public <A HREF="../../../../net/sf/saxon/event/PipelineConfiguration.html" title="class in net.sf.saxon.event">PipelineConfiguration</A> <B>getPipelineConfiguration</B>()</PRE>
<DL>
<DD>Get the pipeline configuration
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../com/saxonica/stream/feed/Feed.html#getPipelineConfiguration()">getPipelineConfiguration</A></CODE> in interface <CODE><A HREF="../../../../com/saxonica/stream/feed/Feed.html" title="interface in com.saxonica.stream.feed">Feed</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the pipeline configuration</DL>
</DD>
</DL>
<HR>

<A NAME="getResult()"><!-- --></A><H3>
getResult</H3>
<PRE>
public <A HREF="../../../../com/saxonica/stream/feed/Feed.html" title="interface in com.saxonica.stream.feed">Feed</A> <B>getResult</B>()</PRE>
<DL>
<DD>Get the parent expression feed
<P>
<DD><DL>
</DL>
</DD>
<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>Get the expression being evaluated by this EventFeed
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the expression being evaluated</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>Get the dynamic evaluation context
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the dynamic evaluation context</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>&lt;<A HREF="../../../../net/sf/saxon/expr/XPathContext.html" title="interface in net.sf.saxon.expr">XPathContext</A>&gt; <B>getContextStack</B>()</PRE>
<DL>
<DD>Get the stack of XPathContext objects
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the context stack</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>Start evaluating the expression. This must call open() on the parent expression
 feed before it does anything else. For the default implementation, this is all that
 it does. Note that it does not open the destination receiver.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../com/saxonica/stream/feed/Feed.html#open()">open</A></CODE> in interface <CODE><A HREF="../../../../com/saxonica/stream/feed/Feed.html" title="interface in com.saxonica.stream.feed">Feed</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> - if a dynamic error occurs</DL>
</DD>
</DL>
<HR>

<A NAME="append(net.sf.saxon.om.Item)"><!-- --></A><H3>
append</H3>
<PRE>
public void <B>append</B>(<A HREF="../../../../net/sf/saxon/om/Item.html" title="interface in net.sf.saxon.om">Item</A>&nbsp;item)
            throws <A HREF="../../../../net/sf/saxon/trans/XPathException.html" title="class in net.sf.saxon.trans">XPathException</A></PRE>
<DL>
<DD>Append an item (node or atomic value) to the output
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../com/saxonica/stream/feed/Feed.html#append(net.sf.saxon.om.Item)">append</A></CODE> in interface <CODE><A HREF="../../../../com/saxonica/stream/feed/Feed.html" title="interface in com.saxonica.stream.feed">Feed</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>item</CODE> - the item to be appended
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../net/sf/saxon/trans/XPathException.html" title="class in net.sf.saxon.trans">XPathException</A></CODE> - to report any failure</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>Finish evaluating the expression. This must call close() on the parent expression
 feed as the last thing it does. For the default implementation, this is all that
 it does. Note that it does not close the destination receiver.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../com/saxonica/stream/feed/Feed.html#close()">close</A></CODE> in interface <CODE><A HREF="../../../../com/saxonica/stream/feed/Feed.html" title="interface in com.saxonica.stream.feed">Feed</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> - if a dynamic error occurs</DL>
</DD>
</DL>
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