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ForClause
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SUMMARY: NESTED | <A HREF="#fields_inherited_from_class_net.sf.saxon.expr.flwor.Clause">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD>
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net.sf.saxon.expr.flwor</FONT>
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Class ForClause</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="../../../../../net/sf/saxon/expr/flwor/Clause.html" title="class in net.sf.saxon.expr.flwor">net.sf.saxon.expr.flwor.Clause</A>
<IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><B>net.sf.saxon.expr.flwor.ForClause</B>
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<DT><PRE>public class <B>ForClause</B><DT>extends <A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html" title="class in net.sf.saxon.expr.flwor">Clause</A></DL>
</PRE>
<P>
A "for" clause in a FLWOR expression
<P>
<P>
<HR>
<P>
<!-- =========== FIELD SUMMARY =========== -->
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Fields inherited from class net.sf.saxon.expr.flwor.<A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html" title="class in net.sf.saxon.expr.flwor">Clause</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html#COUNT">COUNT</A>, <A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html#FOR">FOR</A>, <A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html#GROUPBYCLAUSE">GROUPBYCLAUSE</A>, <A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html#LET">LET</A>, <A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html#ORDERBYCLAUSE">ORDERBYCLAUSE</A>, <A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html#WHERE">WHERE</A>, <A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html#WINDOW">WINDOW</A></CODE></TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../../../net/sf/saxon/expr/flwor/ForClause.html#ForClause()">ForClause</A></B>()</CODE>
<BR>
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<!-- ========== METHOD SUMMARY =========== -->
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../net/sf/saxon/expr/flwor/ForClause.html#addPredicate(net.sf.saxon.expr.parser.ExpressionVisitor, net.sf.saxon.expr.parser.ExpressionVisitor.ContextItemType, net.sf.saxon.expr.Expression)">addPredicate</A></B>(<A HREF="../../../../../net/sf/saxon/expr/parser/ExpressionVisitor.html" title="class in net.sf.saxon.expr.parser">ExpressionVisitor</A> visitor,
<A HREF="../../../../../net/sf/saxon/expr/parser/ExpressionVisitor.ContextItemType.html" title="class in net.sf.saxon.expr.parser">ExpressionVisitor.ContextItemType</A> contextItemType,
<A HREF="../../../../../net/sf/saxon/expr/Expression.html" title="class in net.sf.saxon.expr">Expression</A> condition)</CODE>
<BR>
Convert where clause to a predicate.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../../net/sf/saxon/expr/flwor/ForClause.html" title="class in net.sf.saxon.expr.flwor">ForClause</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../net/sf/saxon/expr/flwor/ForClause.html#copy()">copy</A></B>()</CODE>
<BR>
</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="../../../../../net/sf/saxon/expr/flwor/ForClause.html#explain(net.sf.saxon.trace.ExpressionPresenter)">explain</A></B>(<A HREF="../../../../../net/sf/saxon/trace/ExpressionPresenter.html" title="class in net.sf.saxon.trace">ExpressionPresenter</A> out)</CODE>
<BR>
Diagnostic print of expression structure.</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="../../../../../net/sf/saxon/expr/flwor/ForClause.html#gatherVariableReferences(net.sf.saxon.expr.parser.ExpressionVisitor, net.sf.saxon.expr.Binding, java.util.List)">gatherVariableReferences</A></B>(<A HREF="../../../../../net/sf/saxon/expr/parser/ExpressionVisitor.html" title="class in net.sf.saxon.expr.parser">ExpressionVisitor</A> visitor,
<A HREF="../../../../../net/sf/saxon/expr/Binding.html" title="interface in net.sf.saxon.expr">Binding</A> binding,
<A HREF="http://download.oracle.com/javase/6/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</A><<A HREF="../../../../../net/sf/saxon/expr/VariableReference.html" title="class in net.sf.saxon.expr">VariableReference</A>> references)</CODE>
<BR>
Build a list of all references to a variables declared in this clause</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="../../../../../net/sf/saxon/expr/flwor/ForClause.html#gatherVariableReferences(java.util.List)">gatherVariableReferences</A></B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</A> references)</CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../net/sf/saxon/expr/flwor/ForClause.html#getClauseKey()">getClauseKey</A></B>()</CODE>
<BR>
Get a keyword identifying what kind of clause this is</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../../net/sf/saxon/expr/flwor/LocalVariableBinding.html" title="class in net.sf.saxon.expr.flwor">LocalVariableBinding</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../net/sf/saxon/expr/flwor/ForClause.html#getPositionVariable()">getPositionVariable</A></B>()</CODE>
<BR>
Get the position variable (the variable bound by the "at" clause)</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../../net/sf/saxon/expr/flwor/TuplePull.html" title="class in net.sf.saxon.expr.flwor">TuplePull</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../net/sf/saxon/expr/flwor/ForClause.html#getPullStream(net.sf.saxon.expr.flwor.TuplePull, net.sf.saxon.expr.XPathContext)">getPullStream</A></B>(<A HREF="../../../../../net/sf/saxon/expr/flwor/TuplePull.html" title="class in net.sf.saxon.expr.flwor">TuplePull</A> base,
<A HREF="../../../../../net/sf/saxon/expr/XPathContext.html" title="interface in net.sf.saxon.expr">XPathContext</A> context)</CODE>
<BR>
Get a tuple stream that implements the functionality of this clause, taking its
input from another tuple stream which this clause modifies</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../../net/sf/saxon/expr/flwor/TuplePush.html" title="class in net.sf.saxon.expr.flwor">TuplePush</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../net/sf/saxon/expr/flwor/ForClause.html#getPushStream(net.sf.saxon.expr.flwor.TuplePush, net.sf.saxon.expr.XPathContext)">getPushStream</A></B>(<A HREF="../../../../../net/sf/saxon/expr/flwor/TuplePush.html" title="class in net.sf.saxon.expr.flwor">TuplePush</A> destination,
<A HREF="../../../../../net/sf/saxon/expr/XPathContext.html" title="interface in net.sf.saxon.expr">XPathContext</A> context)</CODE>
<BR>
Get a push-mode tuple stream that implements the functionality of this clause, supplying its
output to another tuple stream</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../../net/sf/saxon/expr/flwor/LocalVariableBinding.html" title="class in net.sf.saxon.expr.flwor">LocalVariableBinding</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../net/sf/saxon/expr/flwor/ForClause.html#getRangeVariable()">getRangeVariable</A></B>()</CODE>
<BR>
Get the range variable (the primary variable bound by this clause)</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../../net/sf/saxon/expr/flwor/LocalVariableBinding.html" title="class in net.sf.saxon.expr.flwor">LocalVariableBinding</A>[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../net/sf/saxon/expr/flwor/ForClause.html#getRangeVariables()">getRangeVariables</A></B>()</CODE>
<BR>
Get the number of variables bound by this clause</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="../../../../../net/sf/saxon/expr/flwor/ForClause.html#getSequence()">getSequence</A></B>()</CODE>
<BR>
Get the expression over which the "for" variable iterates</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../net/sf/saxon/expr/flwor/ForClause.html#isAllowingEmpty()">isAllowingEmpty</A></B>()</CODE>
<BR>
Ask whether the "allowing empty" option is present</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="../../../../../net/sf/saxon/expr/flwor/ForClause.html#processSubExpressions(net.sf.saxon.expr.flwor.ExpressionProcessor)">processSubExpressions</A></B>(<A HREF="../../../../../net/sf/saxon/expr/flwor/ExpressionProcessor.html" title="interface in net.sf.saxon.expr.flwor">ExpressionProcessor</A> processor)</CODE>
<BR>
Process the subexpressions of this clause</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="../../../../../net/sf/saxon/expr/flwor/ForClause.html#refineVariableType(net.sf.saxon.expr.parser.ExpressionVisitor, java.util.List, net.sf.saxon.expr.Expression)">refineVariableType</A></B>(<A HREF="../../../../../net/sf/saxon/expr/parser/ExpressionVisitor.html" title="class in net.sf.saxon.expr.parser">ExpressionVisitor</A> visitor,
<A HREF="http://download.oracle.com/javase/6/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</A><<A HREF="../../../../../net/sf/saxon/expr/VariableReference.html" title="class in net.sf.saxon.expr">VariableReference</A>> references,
<A HREF="../../../../../net/sf/saxon/expr/Expression.html" title="class in net.sf.saxon.expr">Expression</A> returnExpr)</CODE>
<BR>
Supply improved type information to the expressions that contain references to the variables declared in this clause</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="../../../../../net/sf/saxon/expr/flwor/ForClause.html#setAllowingEmpty(boolean)">setAllowingEmpty</A></B>(boolean option)</CODE>
<BR>
Say whether the "allowing empty" option is present</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="../../../../../net/sf/saxon/expr/flwor/ForClause.html#setPositionVariable(net.sf.saxon.expr.flwor.LocalVariableBinding)">setPositionVariable</A></B>(<A HREF="../../../../../net/sf/saxon/expr/flwor/LocalVariableBinding.html" title="class in net.sf.saxon.expr.flwor">LocalVariableBinding</A> binding)</CODE>
<BR>
Set the position variable (the variable bound by the "at" clause)</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="../../../../../net/sf/saxon/expr/flwor/ForClause.html#setRangeVariable(net.sf.saxon.expr.flwor.LocalVariableBinding)">setRangeVariable</A></B>(<A HREF="../../../../../net/sf/saxon/expr/flwor/LocalVariableBinding.html" title="class in net.sf.saxon.expr.flwor">LocalVariableBinding</A> binding)</CODE>
<BR>
Set the range variable (the primary variable bound by this clause)</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="../../../../../net/sf/saxon/expr/flwor/ForClause.html#setSequence(net.sf.saxon.expr.Expression)">setSequence</A></B>(<A HREF="../../../../../net/sf/saxon/expr/Expression.html" title="class in net.sf.saxon.expr">Expression</A> sequence)</CODE>
<BR>
Set the expression over which the "for" variable iterates</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/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../net/sf/saxon/expr/flwor/ForClause.html#toString()">toString</A></B>()</CODE>
<BR>
</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="../../../../../net/sf/saxon/expr/flwor/ForClause.html#typeCheck(net.sf.saxon.expr.parser.ExpressionVisitor)">typeCheck</A></B>(<A HREF="../../../../../net/sf/saxon/expr/parser/ExpressionVisitor.html" title="class in net.sf.saxon.expr.parser">ExpressionVisitor</A> visitor)</CODE>
<BR>
Type-check the expression</TD>
</TR>
</TABLE>
<A NAME="methods_inherited_from_class_net.sf.saxon.expr.flwor.Clause"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from class net.sf.saxon.expr.flwor.<A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html" title="class in net.sf.saxon.expr.flwor">Clause</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html#optimize(net.sf.saxon.expr.parser.ExpressionVisitor, net.sf.saxon.expr.parser.ExpressionVisitor.ContextItemType)">optimize</A></CODE></TD>
</TR>
</TABLE>
<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
<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#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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<P>
<!-- ========= CONSTRUCTOR DETAIL ======== -->
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<A NAME="ForClause()"><!-- --></A><H3>
ForClause</H3>
<PRE>
public <B>ForClause</B>()</PRE>
<DL>
</DL>
<!-- ============ METHOD DETAIL ========== -->
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<A NAME="getClauseKey()"><!-- --></A><H3>
getClauseKey</H3>
<PRE>
public int <B>getClauseKey</B>()</PRE>
<DL>
<DD><B>Description copied from class: <CODE><A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html#getClauseKey()">Clause</A></CODE></B></DD>
<DD>Get a keyword identifying what kind of clause this is
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html#getClauseKey()">getClauseKey</A></CODE> in class <CODE><A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html" title="class in net.sf.saxon.expr.flwor">Clause</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the kind of clause</DL>
</DD>
</DL>
<HR>
<A NAME="copy()"><!-- --></A><H3>
copy</H3>
<PRE>
public <A HREF="../../../../../net/sf/saxon/expr/flwor/ForClause.html" title="class in net.sf.saxon.expr.flwor">ForClause</A> <B>copy</B>()</PRE>
<DL>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html#copy()">copy</A></CODE> in class <CODE><A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html" title="class in net.sf.saxon.expr.flwor">Clause</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="setSequence(net.sf.saxon.expr.Expression)"><!-- --></A><H3>
setSequence</H3>
<PRE>
public void <B>setSequence</B>(<A HREF="../../../../../net/sf/saxon/expr/Expression.html" title="class in net.sf.saxon.expr">Expression</A> sequence)</PRE>
<DL>
<DD>Set the expression over which the "for" variable iterates
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>sequence</CODE> - the expression over which the variable ranges</DL>
</DD>
</DL>
<HR>
<A NAME="getSequence()"><!-- --></A><H3>
getSequence</H3>
<PRE>
public <A HREF="../../../../../net/sf/saxon/expr/Expression.html" title="class in net.sf.saxon.expr">Expression</A> <B>getSequence</B>()</PRE>
<DL>
<DD>Get the expression over which the "for" variable iterates
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the expression over which the variable ranges</DL>
</DD>
</DL>
<HR>
<A NAME="setRangeVariable(net.sf.saxon.expr.flwor.LocalVariableBinding)"><!-- --></A><H3>
setRangeVariable</H3>
<PRE>
public void <B>setRangeVariable</B>(<A HREF="../../../../../net/sf/saxon/expr/flwor/LocalVariableBinding.html" title="class in net.sf.saxon.expr.flwor">LocalVariableBinding</A> binding)</PRE>
<DL>
<DD>Set the range variable (the primary variable bound by this clause)
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>binding</CODE> - the range variable</DL>
</DD>
</DL>
<HR>
<A NAME="getRangeVariable()"><!-- --></A><H3>
getRangeVariable</H3>
<PRE>
public <A HREF="../../../../../net/sf/saxon/expr/flwor/LocalVariableBinding.html" title="class in net.sf.saxon.expr.flwor">LocalVariableBinding</A> <B>getRangeVariable</B>()</PRE>
<DL>
<DD>Get the range variable (the primary variable bound by this clause)
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the range variable</DL>
</DD>
</DL>
<HR>
<A NAME="setPositionVariable(net.sf.saxon.expr.flwor.LocalVariableBinding)"><!-- --></A><H3>
setPositionVariable</H3>
<PRE>
public void <B>setPositionVariable</B>(<A HREF="../../../../../net/sf/saxon/expr/flwor/LocalVariableBinding.html" title="class in net.sf.saxon.expr.flwor">LocalVariableBinding</A> binding)</PRE>
<DL>
<DD>Set the position variable (the variable bound by the "at" clause)
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>binding</CODE> - the position variable</DL>
</DD>
</DL>
<HR>
<A NAME="getPositionVariable()"><!-- --></A><H3>
getPositionVariable</H3>
<PRE>
public <A HREF="../../../../../net/sf/saxon/expr/flwor/LocalVariableBinding.html" title="class in net.sf.saxon.expr.flwor">LocalVariableBinding</A> <B>getPositionVariable</B>()</PRE>
<DL>
<DD>Get the position variable (the variable bound by the "at" clause)
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the position variable</DL>
</DD>
</DL>
<HR>
<A NAME="getRangeVariables()"><!-- --></A><H3>
getRangeVariables</H3>
<PRE>
public <A HREF="../../../../../net/sf/saxon/expr/flwor/LocalVariableBinding.html" title="class in net.sf.saxon.expr.flwor">LocalVariableBinding</A>[] <B>getRangeVariables</B>()</PRE>
<DL>
<DD>Get the number of variables bound by this clause
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html#getRangeVariables()">getRangeVariables</A></CODE> in class <CODE><A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html" title="class in net.sf.saxon.expr.flwor">Clause</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the number of variable bindings (1 or 2 depending on whether there is a position variable)</DL>
</DD>
</DL>
<HR>
<A NAME="setAllowingEmpty(boolean)"><!-- --></A><H3>
setAllowingEmpty</H3>
<PRE>
public void <B>setAllowingEmpty</B>(boolean option)</PRE>
<DL>
<DD>Say whether the "allowing empty" option is present
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>option</CODE> - true if the "allowing empty" option is present</DL>
</DD>
</DL>
<HR>
<A NAME="isAllowingEmpty()"><!-- --></A><H3>
isAllowingEmpty</H3>
<PRE>
public boolean <B>isAllowingEmpty</B>()</PRE>
<DL>
<DD>Ask whether the "allowing empty" option is present
<P>
<DD><DL>
<DT><B>Returns:</B><DD>true if the "allowing empty" option is present</DL>
</DD>
</DL>
<HR>
<A NAME="typeCheck(net.sf.saxon.expr.parser.ExpressionVisitor)"><!-- --></A><H3>
typeCheck</H3>
<PRE>
public void <B>typeCheck</B>(<A HREF="../../../../../net/sf/saxon/expr/parser/ExpressionVisitor.html" title="class in net.sf.saxon.expr.parser">ExpressionVisitor</A> visitor)
throws <A HREF="../../../../../net/sf/saxon/trans/XPathException.html" title="class in net.sf.saxon.trans">XPathException</A></PRE>
<DL>
<DD>Type-check the expression
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html#typeCheck(net.sf.saxon.expr.parser.ExpressionVisitor)">typeCheck</A></CODE> in class <CODE><A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html" title="class in net.sf.saxon.expr.flwor">Clause</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>visitor</CODE> - the ExpressionVisitor, providing access to static context information
<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 any error is detected</DL>
</DD>
</DL>
<HR>
<A NAME="getPullStream(net.sf.saxon.expr.flwor.TuplePull, net.sf.saxon.expr.XPathContext)"><!-- --></A><H3>
getPullStream</H3>
<PRE>
public <A HREF="../../../../../net/sf/saxon/expr/flwor/TuplePull.html" title="class in net.sf.saxon.expr.flwor">TuplePull</A> <B>getPullStream</B>(<A HREF="../../../../../net/sf/saxon/expr/flwor/TuplePull.html" title="class in net.sf.saxon.expr.flwor">TuplePull</A> base,
<A HREF="../../../../../net/sf/saxon/expr/XPathContext.html" title="interface in net.sf.saxon.expr">XPathContext</A> context)</PRE>
<DL>
<DD>Get a tuple stream that implements the functionality of this clause, taking its
input from another tuple stream which this clause modifies
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html#getPullStream(net.sf.saxon.expr.flwor.TuplePull, net.sf.saxon.expr.XPathContext)">getPullStream</A></CODE> in class <CODE><A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html" title="class in net.sf.saxon.expr.flwor">Clause</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>base</CODE> - the input tuple stream<DD><CODE>context</CODE> - the XPath dynamic context
<DT><B>Returns:</B><DD>the output tuple stream</DL>
</DD>
</DL>
<HR>
<A NAME="getPushStream(net.sf.saxon.expr.flwor.TuplePush, net.sf.saxon.expr.XPathContext)"><!-- --></A><H3>
getPushStream</H3>
<PRE>
public <A HREF="../../../../../net/sf/saxon/expr/flwor/TuplePush.html" title="class in net.sf.saxon.expr.flwor">TuplePush</A> <B>getPushStream</B>(<A HREF="../../../../../net/sf/saxon/expr/flwor/TuplePush.html" title="class in net.sf.saxon.expr.flwor">TuplePush</A> destination,
<A HREF="../../../../../net/sf/saxon/expr/XPathContext.html" title="interface in net.sf.saxon.expr">XPathContext</A> context)</PRE>
<DL>
<DD>Get a push-mode tuple stream that implements the functionality of this clause, supplying its
output to another tuple stream
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html#getPushStream(net.sf.saxon.expr.flwor.TuplePush, net.sf.saxon.expr.XPathContext)">getPushStream</A></CODE> in class <CODE><A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html" title="class in net.sf.saxon.expr.flwor">Clause</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>destination</CODE> - the output tuple stream<DD><CODE>context</CODE> - the dynamic evaluation context
<DT><B>Returns:</B><DD>the push tuple stream that implements the functionality of this clause of the FLWOR
expression</DL>
</DD>
</DL>
<HR>
<A NAME="addPredicate(net.sf.saxon.expr.parser.ExpressionVisitor, net.sf.saxon.expr.parser.ExpressionVisitor.ContextItemType, net.sf.saxon.expr.Expression)"><!-- --></A><H3>
addPredicate</H3>
<PRE>
public boolean <B>addPredicate</B>(<A HREF="../../../../../net/sf/saxon/expr/parser/ExpressionVisitor.html" title="class in net.sf.saxon.expr.parser">ExpressionVisitor</A> visitor,
<A HREF="../../../../../net/sf/saxon/expr/parser/ExpressionVisitor.ContextItemType.html" title="class in net.sf.saxon.expr.parser">ExpressionVisitor.ContextItemType</A> contextItemType,
<A HREF="../../../../../net/sf/saxon/expr/Expression.html" title="class in net.sf.saxon.expr">Expression</A> condition)
throws <A HREF="../../../../../net/sf/saxon/trans/XPathException.html" title="class in net.sf.saxon.trans">XPathException</A></PRE>
<DL>
<DD>Convert where clause to a predicate.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>visitor</CODE> - the expression visitor<DD><CODE>contextItemType</CODE> - the item type of the context item<DD><CODE>condition</CODE> - the predicate to be added. This will always be a single term (never a composite condition
using "and"), as the where clause is split into separate terms before calling this method
<DT><B>Returns:</B><DD>true if the expression has been changed, that is, if the where clause has been converted
<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 an error is encountered</DL>
</DD>
</DL>
<HR>
<A NAME="processSubExpressions(net.sf.saxon.expr.flwor.ExpressionProcessor)"><!-- --></A><H3>
processSubExpressions</H3>
<PRE>
public void <B>processSubExpressions</B>(<A HREF="../../../../../net/sf/saxon/expr/flwor/ExpressionProcessor.html" title="interface in net.sf.saxon.expr.flwor">ExpressionProcessor</A> processor)
throws <A HREF="../../../../../net/sf/saxon/trans/XPathException.html" title="class in net.sf.saxon.trans">XPathException</A></PRE>
<DL>
<DD>Process the subexpressions of this clause
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html#processSubExpressions(net.sf.saxon.expr.flwor.ExpressionProcessor)">processSubExpressions</A></CODE> in class <CODE><A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html" title="class in net.sf.saxon.expr.flwor">Clause</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>processor</CODE> - the expression processor used to process the subexpressions
<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 any error is detected</DL>
</DD>
</DL>
<HR>
<A NAME="gatherVariableReferences(java.util.List)"><!-- --></A><H3>
gatherVariableReferences</H3>
<PRE>
public void <B>gatherVariableReferences</B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</A> references)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="gatherVariableReferences(net.sf.saxon.expr.parser.ExpressionVisitor, net.sf.saxon.expr.Binding, java.util.List)"><!-- --></A><H3>
gatherVariableReferences</H3>
<PRE>
public void <B>gatherVariableReferences</B>(<A HREF="../../../../../net/sf/saxon/expr/parser/ExpressionVisitor.html" title="class in net.sf.saxon.expr.parser">ExpressionVisitor</A> visitor,
<A HREF="../../../../../net/sf/saxon/expr/Binding.html" title="interface in net.sf.saxon.expr">Binding</A> binding,
<A HREF="http://download.oracle.com/javase/6/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</A><<A HREF="../../../../../net/sf/saxon/expr/VariableReference.html" title="class in net.sf.saxon.expr">VariableReference</A>> references)</PRE>
<DL>
<DD><B>Description copied from class: <CODE><A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html#gatherVariableReferences(net.sf.saxon.expr.parser.ExpressionVisitor, net.sf.saxon.expr.Binding, java.util.List)">Clause</A></CODE></B></DD>
<DD>Build a list of all references to a variables declared in this clause
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html#gatherVariableReferences(net.sf.saxon.expr.parser.ExpressionVisitor, net.sf.saxon.expr.Binding, java.util.List)">gatherVariableReferences</A></CODE> in class <CODE><A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html" title="class in net.sf.saxon.expr.flwor">Clause</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>visitor</CODE> - the expression visitor<DD><CODE>binding</CODE> - a variable declared in this clause<DD><CODE>references</CODE> - the list of variable references, initially empty, to which the method will append</DL>
</DD>
</DL>
<HR>
<A NAME="refineVariableType(net.sf.saxon.expr.parser.ExpressionVisitor, java.util.List, net.sf.saxon.expr.Expression)"><!-- --></A><H3>
refineVariableType</H3>
<PRE>
public void <B>refineVariableType</B>(<A HREF="../../../../../net/sf/saxon/expr/parser/ExpressionVisitor.html" title="class in net.sf.saxon.expr.parser">ExpressionVisitor</A> visitor,
<A HREF="http://download.oracle.com/javase/6/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</A><<A HREF="../../../../../net/sf/saxon/expr/VariableReference.html" title="class in net.sf.saxon.expr">VariableReference</A>> references,
<A HREF="../../../../../net/sf/saxon/expr/Expression.html" title="class in net.sf.saxon.expr">Expression</A> returnExpr)</PRE>
<DL>
<DD><B>Description copied from class: <CODE><A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html#refineVariableType(net.sf.saxon.expr.parser.ExpressionVisitor, java.util.List, net.sf.saxon.expr.Expression)">Clause</A></CODE></B></DD>
<DD>Supply improved type information to the expressions that contain references to the variables declared in this clause
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html#refineVariableType(net.sf.saxon.expr.parser.ExpressionVisitor, java.util.List, net.sf.saxon.expr.Expression)">refineVariableType</A></CODE> in class <CODE><A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html" title="class in net.sf.saxon.expr.flwor">Clause</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>visitor</CODE> - the expression visitor<DD><CODE>references</CODE> - the list of variable references<DD><CODE>returnExpr</CODE> - the expression in the return clause</DL>
</DD>
</DL>
<HR>
<A NAME="explain(net.sf.saxon.trace.ExpressionPresenter)"><!-- --></A><H3>
explain</H3>
<PRE>
public void <B>explain</B>(<A HREF="../../../../../net/sf/saxon/trace/ExpressionPresenter.html" title="class in net.sf.saxon.trace">ExpressionPresenter</A> out)</PRE>
<DL>
<DD>Diagnostic print of expression structure. The abstract expression tree
is written to the supplied output destination.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html#explain(net.sf.saxon.trace.ExpressionPresenter)">explain</A></CODE> in class <CODE><A HREF="../../../../../net/sf/saxon/expr/flwor/Clause.html" title="class in net.sf.saxon.expr.flwor">Clause</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>out</CODE> - the expression presenter used to display the structure</DL>
</DD>
</DL>
<HR>
<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>toString</B>()</PRE>
<DL>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><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></CODE> in class <CODE><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></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
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