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

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SingletonItem
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net.sf.saxon.value</FONT>
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Class SingletonItem&lt;T extends <A HREF="../../../../net/sf/saxon/om/Item.html" title="interface in net.sf.saxon.om">Item</A>&gt;</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/value/Value.html" title="class in net.sf.saxon.value">net.sf.saxon.value.Value</A>&lt;T&gt;
      <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>net.sf.saxon.value.SingletonItem&lt;T&gt;</B>
</PRE>
<DL>
<DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../net/sf/saxon/om/GroundedValue.html" title="interface in net.sf.saxon.om">GroundedValue</A>&lt;T&gt;, <A HREF="../../../../net/sf/saxon/om/ValueRepresentation.html" title="interface in net.sf.saxon.om">ValueRepresentation</A>&lt;T&gt;</DD>
</DL>
<HR>
<DL>
<DT><PRE>public class <B>SingletonItem&lt;T extends <A HREF="../../../../net/sf/saxon/om/Item.html" title="interface in net.sf.saxon.om">Item</A>&gt;</B><DT>extends <A HREF="../../../../net/sf/saxon/value/Value.html" title="class in net.sf.saxon.value">Value</A>&lt;T&gt;<DT>implements <A HREF="../../../../net/sf/saxon/om/GroundedValue.html" title="interface in net.sf.saxon.om">GroundedValue</A>&lt;T&gt;</DL>
</PRE>

<P>
A value that is a sequence containing zero or one items. Used only for items that are not atomic values
 (that is, nodes, and function items)
<P>

<P>
<HR>

<P>
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<CODE>protected &nbsp;<A HREF="../../../../net/sf/saxon/value/SingletonItem.html" title="type parameter in SingletonItem">T</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sf/saxon/value/SingletonItem.html#item">item</A></B></CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
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&nbsp;<A NAME="fields_inherited_from_class_net.sf.saxon.value.Value"><!-- --></A>
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<TH ALIGN="left"><B>Fields inherited from class net.sf.saxon.value.<A HREF="../../../../net/sf/saxon/value/Value.html" title="class in net.sf.saxon.value">Value</A></B></TH>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../net/sf/saxon/value/Value.html#INDETERMINATE_ORDERING">INDETERMINATE_ORDERING</A></CODE></TD>
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<TH ALIGN="left"><B>Fields inherited from interface net.sf.saxon.om.<A HREF="../../../../net/sf/saxon/om/ValueRepresentation.html" title="interface in net.sf.saxon.om">ValueRepresentation</A></B></TH>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../net/sf/saxon/om/ValueRepresentation.html#EMPTY_VALUE_ARRAY">EMPTY_VALUE_ARRAY</A></CODE></TD>
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<TD><CODE><B><A HREF="../../../../net/sf/saxon/value/SingletonItem.html#SingletonItem(T)">SingletonItem</A></B>(<A HREF="../../../../net/sf/saxon/value/SingletonItem.html" title="type parameter in SingletonItem">T</A>&nbsp;item)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Create a node-set containing zero or one nodes</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../../net/sf/saxon/value/SingletonItem.html" title="type parameter in SingletonItem">T</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sf/saxon/value/SingletonItem.html#asItem()">asItem</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Return the value in the form of an Item</TD>
</TR>
<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="../../../../net/sf/saxon/value/SingletonItem.html#effectiveBooleanValue()">effectiveBooleanValue</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the effective boolean value</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="../../../../net/sf/saxon/value/SingletonItem.html#getCardinality()">getCardinality</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Determine the static cardinality</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../../net/sf/saxon/type/ItemType.html" title="interface in net.sf.saxon.type">ItemType</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sf/saxon/value/SingletonItem.html#getItemType(net.sf.saxon.type.TypeHierarchy)">getItemType</A></B>(<A HREF="../../../../net/sf/saxon/type/TypeHierarchy.html" title="class in net.sf.saxon.type">TypeHierarchy</A>&nbsp;th)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Determine the data type of the items in the expression.</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="../../../../net/sf/saxon/value/SingletonItem.html#getLength()">getLength</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the length of the sequence</TD>
</TR>
<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/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/value/SingletonItem.html#getStringValue()">getStringValue</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Convert the value to a string, using the serialization rules.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../../net/sf/saxon/value/SingletonItem.html" title="type parameter in SingletonItem">T</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sf/saxon/value/SingletonItem.html#itemAt(int)">itemAt</A></B>(int&nbsp;n)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the n'th item in the sequence (starting from 0).</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../../net/sf/saxon/om/SequenceIterator.html" title="interface in net.sf.saxon.om">SequenceIterator</A>&lt;<A HREF="../../../../net/sf/saxon/value/SingletonItem.html" title="type parameter in SingletonItem">T</A>&gt;</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sf/saxon/value/SingletonItem.html#iterate()">iterate</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Return an enumeration of this nodeset value.</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="../../../../net/sf/saxon/value/SingletonItem.html#process(net.sf.saxon.expr.XPathContext)">process</A></B>(<A HREF="../../../../net/sf/saxon/expr/XPathContext.html" title="interface in net.sf.saxon.expr">XPathContext</A>&nbsp;context)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Process the instruction, without returning any tail calls</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../../net/sf/saxon/om/GroundedValue.html" title="interface in net.sf.saxon.om">GroundedValue</A>&lt;<A HREF="../../../../net/sf/saxon/value/SingletonItem.html" title="type parameter in SingletonItem">T</A>&gt;</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sf/saxon/value/SingletonItem.html#subsequence(int, int)">subsequence</A></B>(int&nbsp;start,
            int&nbsp;length)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get a subsequence of the value</TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_net.sf.saxon.value.Value"><!-- --></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.value.<A HREF="../../../../net/sf/saxon/value/Value.html" title="class in net.sf.saxon.value">Value</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../net/sf/saxon/value/Value.html#asItem(net.sf.saxon.om.ValueRepresentation)">asItem</A>, <A HREF="../../../../net/sf/saxon/value/Value.html#asIterator(net.sf.saxon.om.ValueRepresentation)">asIterator</A>, <A HREF="../../../../net/sf/saxon/value/Value.html#asValue(net.sf.saxon.om.ValueRepresentation)">asValue</A>, <A HREF="../../../../net/sf/saxon/value/Value.html#checkPermittedContents(net.sf.saxon.type.SchemaType, net.sf.saxon.expr.StaticContext, boolean)">checkPermittedContents</A>, <A HREF="../../../../net/sf/saxon/value/Value.html#convertToJava(net.sf.saxon.om.Item)">convertToJava</A>, <A HREF="../../../../net/sf/saxon/value/Value.html#equals(java.lang.Object)">equals</A>, <A HREF="../../../../net/sf/saxon/value/Value.html#fromItem(net.sf.saxon.om.Item)">fromItem</A>, <A HREF="../../../../net/sf/saxon/value/Value.html#getCanonicalLexicalRepresentation()">getCanonicalLexicalRepresentation</A>, <A HREF="../../../../net/sf/saxon/value/Value.html#getIterator(net.sf.saxon.om.ValueRepresentation)">getIterator</A>, <A HREF="../../../../net/sf/saxon/value/Value.html#getSchemaComparable()">getSchemaComparable</A>, <A HREF="../../../../net/sf/saxon/value/Value.html#getSequenceLength(net.sf.saxon.om.ValueRepresentation)">getSequenceLength</A>, <A HREF="../../../../net/sf/saxon/value/Value.html#getStringValueCS()">getStringValueCS</A>, <A HREF="../../../../net/sf/saxon/value/Value.html#hashCode()">hashCode</A>, <A HREF="../../../../net/sf/saxon/value/Value.html#isIdentical(net.sf.saxon.value.Value)">isIdentical</A>, <A HREF="../../../../net/sf/saxon/value/Value.html#reduce()">reduce</A></CODE></TD>
</TR>
</TABLE>
&nbsp;<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#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#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>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_net.sf.saxon.om.ValueRepresentation"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from interface net.sf.saxon.om.<A HREF="../../../../net/sf/saxon/om/ValueRepresentation.html" title="interface in net.sf.saxon.om">ValueRepresentation</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../net/sf/saxon/om/ValueRepresentation.html#getStringValueCS()">getStringValueCS</A></CODE></TD>
</TR>
</TABLE>
&nbsp;
<P>

<!-- ============ FIELD DETAIL =========== -->

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<A NAME="item"><!-- --></A><H3>
item</H3>
<PRE>
protected <A HREF="../../../../net/sf/saxon/value/SingletonItem.html" title="type parameter in SingletonItem">T</A> extends <A HREF="../../../../net/sf/saxon/om/Item.html" title="interface in net.sf.saxon.om">Item</A> <B>item</B></PRE>
<DL>
<DL>
</DL>
</DL>

<!-- ========= CONSTRUCTOR DETAIL ======== -->

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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<B>Constructor Detail</B></FONT></TH>
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<A NAME="SingletonItem(net.sf.saxon.om.Item)"><!-- --></A><A NAME="SingletonItem(T)"><!-- --></A><H3>
SingletonItem</H3>
<PRE>
public <B>SingletonItem</B>(<A HREF="../../../../net/sf/saxon/value/SingletonItem.html" title="type parameter in SingletonItem">T</A>&nbsp;item)</PRE>
<DL>
<DD>Create a node-set containing zero or one nodes
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>item</CODE> - The node or function-item to be contained in the node-set, or null if the sequence
 is to be empty</DL>
</DL>

<!-- ============ METHOD DETAIL ========== -->

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<A NAME="asItem()"><!-- --></A><H3>
asItem</H3>
<PRE>
public <A HREF="../../../../net/sf/saxon/value/SingletonItem.html" title="type parameter in SingletonItem">T</A> <B>asItem</B>()</PRE>
<DL>
<DD>Return the value in the form of an Item
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../net/sf/saxon/value/Value.html#asItem()">asItem</A></CODE> in class <CODE><A HREF="../../../../net/sf/saxon/value/Value.html" title="class in net.sf.saxon.value">Value</A>&lt;<A HREF="../../../../net/sf/saxon/value/SingletonItem.html" title="type parameter in SingletonItem">T</A> extends <A HREF="../../../../net/sf/saxon/om/Item.html" title="interface in net.sf.saxon.om">Item</A>&gt;</CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the value in the form of an Item</DL>
</DD>
</DL>
<HR>

<A NAME="process(net.sf.saxon.expr.XPathContext)"><!-- --></A><H3>
process</H3>
<PRE>
public void <B>process</B>(<A HREF="../../../../net/sf/saxon/expr/XPathContext.html" title="interface in net.sf.saxon.expr">XPathContext</A>&nbsp;context)
             throws <A HREF="../../../../net/sf/saxon/trans/XPathException.html" title="class in net.sf.saxon.trans">XPathException</A></PRE>
<DL>
<DD>Process the instruction, without returning any tail calls
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../net/sf/saxon/value/Value.html#process(net.sf.saxon.expr.XPathContext)">process</A></CODE> in class <CODE><A HREF="../../../../net/sf/saxon/value/Value.html" title="class in net.sf.saxon.value">Value</A>&lt;<A HREF="../../../../net/sf/saxon/value/SingletonItem.html" title="type parameter in SingletonItem">T</A> extends <A HREF="../../../../net/sf/saxon/om/Item.html" title="interface in net.sf.saxon.om">Item</A>&gt;</CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>context</CODE> - The dynamic context, giving access to the current node,
 the current variables, etc.
<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 occurs (for example if the value is
 a closure that needs to be evaluated)</DL>
</DD>
</DL>
<HR>

<A NAME="getItemType(net.sf.saxon.type.TypeHierarchy)"><!-- --></A><H3>
getItemType</H3>
<PRE>
public <A HREF="../../../../net/sf/saxon/type/ItemType.html" title="interface in net.sf.saxon.type">ItemType</A> <B>getItemType</B>(<A HREF="../../../../net/sf/saxon/type/TypeHierarchy.html" title="class in net.sf.saxon.type">TypeHierarchy</A>&nbsp;th)</PRE>
<DL>
<DD>Determine the data type of the items in the expression. This method determines the most
 precise type that it can, because it is called when testing that the node conforms to a required
 type.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../net/sf/saxon/value/Value.html#getItemType(net.sf.saxon.type.TypeHierarchy)">getItemType</A></CODE> in class <CODE><A HREF="../../../../net/sf/saxon/value/Value.html" title="class in net.sf.saxon.value">Value</A>&lt;<A HREF="../../../../net/sf/saxon/value/SingletonItem.html" title="type parameter in SingletonItem">T</A> extends <A HREF="../../../../net/sf/saxon/om/Item.html" title="interface in net.sf.saxon.om">Item</A>&gt;</CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>th</CODE> - the type hierarchy cache
<DT><B>Returns:</B><DD>the most precise possible type of the node.</DL>
</DD>
</DL>
<HR>

<A NAME="getCardinality()"><!-- --></A><H3>
getCardinality</H3>
<PRE>
public int <B>getCardinality</B>()</PRE>
<DL>
<DD>Determine the static cardinality
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../net/sf/saxon/value/Value.html#getCardinality()">getCardinality</A></CODE> in class <CODE><A HREF="../../../../net/sf/saxon/value/Value.html" title="class in net.sf.saxon.value">Value</A>&lt;<A HREF="../../../../net/sf/saxon/value/SingletonItem.html" title="type parameter in SingletonItem">T</A> extends <A HREF="../../../../net/sf/saxon/om/Item.html" title="interface in net.sf.saxon.om">Item</A>&gt;</CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the cardinality</DL>
</DD>
</DL>
<HR>

<A NAME="getLength()"><!-- --></A><H3>
getLength</H3>
<PRE>
public int <B>getLength</B>()</PRE>
<DL>
<DD>Get the length of the sequence
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../net/sf/saxon/om/GroundedValue.html#getLength()">getLength</A></CODE> in interface <CODE><A HREF="../../../../net/sf/saxon/om/GroundedValue.html" title="interface in net.sf.saxon.om">GroundedValue</A>&lt;<A HREF="../../../../net/sf/saxon/value/SingletonItem.html" title="type parameter in SingletonItem">T</A> extends <A HREF="../../../../net/sf/saxon/om/Item.html" title="interface in net.sf.saxon.om">Item</A>&gt;</CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../../net/sf/saxon/value/Value.html#getLength()">getLength</A></CODE> in class <CODE><A HREF="../../../../net/sf/saxon/value/Value.html" title="class in net.sf.saxon.value">Value</A>&lt;<A HREF="../../../../net/sf/saxon/value/SingletonItem.html" title="type parameter in SingletonItem">T</A> extends <A HREF="../../../../net/sf/saxon/om/Item.html" title="interface in net.sf.saxon.om">Item</A>&gt;</CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the number of items in the sequence</DL>
</DD>
</DL>
<HR>

<A NAME="itemAt(int)"><!-- --></A><H3>
itemAt</H3>
<PRE>
public <A HREF="../../../../net/sf/saxon/value/SingletonItem.html" title="type parameter in SingletonItem">T</A> <B>itemAt</B>(int&nbsp;n)</PRE>
<DL>
<DD>Get the n'th item in the sequence (starting from 0). This is defined for all
 SequenceValues, but its real benefits come for a SequenceValue stored extensionally
 (or for a MemoClosure, once all the values have been read)
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../net/sf/saxon/om/GroundedValue.html#itemAt(int)">itemAt</A></CODE> in interface <CODE><A HREF="../../../../net/sf/saxon/om/GroundedValue.html" title="interface in net.sf.saxon.om">GroundedValue</A>&lt;<A HREF="../../../../net/sf/saxon/value/SingletonItem.html" title="type parameter in SingletonItem">T</A> extends <A HREF="../../../../net/sf/saxon/om/Item.html" title="interface in net.sf.saxon.om">Item</A>&gt;</CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../../net/sf/saxon/value/Value.html#itemAt(int)">itemAt</A></CODE> in class <CODE><A HREF="../../../../net/sf/saxon/value/Value.html" title="class in net.sf.saxon.value">Value</A>&lt;<A HREF="../../../../net/sf/saxon/value/SingletonItem.html" title="type parameter in SingletonItem">T</A> extends <A HREF="../../../../net/sf/saxon/om/Item.html" title="interface in net.sf.saxon.om">Item</A>&gt;</CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>n</CODE> - position of the required item, counting from zero.
<DT><B>Returns:</B><DD>the n'th item in the sequence, where the first item in the sequence is
 numbered zero. If n is negative or >= the length of the sequence, returns null.</DL>
</DD>
</DL>
<HR>

<A NAME="subsequence(int, int)"><!-- --></A><H3>
subsequence</H3>
<PRE>
public <A HREF="../../../../net/sf/saxon/om/GroundedValue.html" title="interface in net.sf.saxon.om">GroundedValue</A>&lt;<A HREF="../../../../net/sf/saxon/value/SingletonItem.html" title="type parameter in SingletonItem">T</A>&gt; <B>subsequence</B>(int&nbsp;start,
                                    int&nbsp;length)</PRE>
<DL>
<DD>Get a subsequence of the value
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../net/sf/saxon/om/GroundedValue.html#subsequence(int, int)">subsequence</A></CODE> in interface <CODE><A HREF="../../../../net/sf/saxon/om/GroundedValue.html" title="interface in net.sf.saxon.om">GroundedValue</A>&lt;<A HREF="../../../../net/sf/saxon/value/SingletonItem.html" title="type parameter in SingletonItem">T</A> extends <A HREF="../../../../net/sf/saxon/om/Item.html" title="interface in net.sf.saxon.om">Item</A>&gt;</CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>start</CODE> - the index of the first item to be included in the result, counting from zero.
               A negative value is taken as zero. If the value is beyond the end of the sequence, an empty
               sequence is returned<DD><CODE>length</CODE> - the number of items to be included in the result. Specify Integer.MAX_VALUE to
               get the subsequence up to the end of the base sequence. If the value is negative, an empty sequence
               is returned. If the value goes off the end of the sequence, the result returns items up to the end
               of the sequence
<DT><B>Returns:</B><DD>the required subsequence. If min is</DL>
</DD>
</DL>
<HR>

<A NAME="iterate()"><!-- --></A><H3>
iterate</H3>
<PRE>
public <A HREF="../../../../net/sf/saxon/om/SequenceIterator.html" title="interface in net.sf.saxon.om">SequenceIterator</A>&lt;<A HREF="../../../../net/sf/saxon/value/SingletonItem.html" title="type parameter in SingletonItem">T</A>&gt; <B>iterate</B>()</PRE>
<DL>
<DD>Return an enumeration of this nodeset value.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../net/sf/saxon/value/Value.html#iterate()">iterate</A></CODE> in class <CODE><A HREF="../../../../net/sf/saxon/value/Value.html" title="class in net.sf.saxon.value">Value</A>&lt;<A HREF="../../../../net/sf/saxon/value/SingletonItem.html" title="type parameter in SingletonItem">T</A> extends <A HREF="../../../../net/sf/saxon/om/Item.html" title="interface in net.sf.saxon.om">Item</A>&gt;</CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>an iterator over the sequence of items</DL>
</DD>
</DL>
<HR>

<A NAME="effectiveBooleanValue()"><!-- --></A><H3>
effectiveBooleanValue</H3>
<PRE>
public boolean <B>effectiveBooleanValue</B>()</PRE>
<DL>
<DD>Get the effective boolean value
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../net/sf/saxon/value/Value.html#effectiveBooleanValue()">effectiveBooleanValue</A></CODE> in class <CODE><A HREF="../../../../net/sf/saxon/value/Value.html" title="class in net.sf.saxon.value">Value</A>&lt;<A HREF="../../../../net/sf/saxon/value/SingletonItem.html" title="type parameter in SingletonItem">T</A> extends <A HREF="../../../../net/sf/saxon/om/Item.html" title="interface in net.sf.saxon.om">Item</A>&gt;</CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the effective boolean value</DL>
</DD>
</DL>
<HR>

<A NAME="getStringValue()"><!-- --></A><H3>
getStringValue</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>getStringValue</B>()</PRE>
<DL>
<DD>Convert the value to a string, using the serialization rules.
 For atomic values this is the same as a cast; for sequence values
 it gives a space-separated list. For QNames and NOTATIONS, or lists
 containing them, it fails.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../net/sf/saxon/om/ValueRepresentation.html#getStringValue()">getStringValue</A></CODE> in interface <CODE><A HREF="../../../../net/sf/saxon/om/ValueRepresentation.html" title="interface in net.sf.saxon.om">ValueRepresentation</A>&lt;<A HREF="../../../../net/sf/saxon/value/SingletonItem.html" title="type parameter in SingletonItem">T</A> extends <A HREF="../../../../net/sf/saxon/om/Item.html" title="interface in net.sf.saxon.om">Item</A>&gt;</CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../../net/sf/saxon/value/Value.html#getStringValue()">getStringValue</A></CODE> in class <CODE><A HREF="../../../../net/sf/saxon/value/Value.html" title="class in net.sf.saxon.value">Value</A>&lt;<A HREF="../../../../net/sf/saxon/value/SingletonItem.html" title="type parameter in SingletonItem">T</A> extends <A HREF="../../../../net/sf/saxon/om/Item.html" title="interface in net.sf.saxon.om">Item</A>&gt;</CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the result of converting the value to a string</DL>
</DD>
</DL>
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