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MapItem
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com.saxonica.functions.map</FONT>
<BR>
Interface MapItem</H2>
<DL>
<DT><B>All Superinterfaces:</B> <DD><A HREF="../../../../net/sf/saxon/om/FunctionItem.html" title="interface in net.sf.saxon.om">FunctionItem</A><<A HREF="../../../../com/saxonica/functions/map/MapItem.html" title="interface in com.saxonica.functions.map">MapItem</A>>, <A HREF="../../../../net/sf/saxon/om/Item.html" title="interface in net.sf.saxon.om">Item</A><<A HREF="../../../../com/saxonica/functions/map/MapItem.html" title="interface in com.saxonica.functions.map">MapItem</A>>, <A HREF="../../../../net/sf/saxon/evpull/PullEvent.html" title="interface in net.sf.saxon.evpull">PullEvent</A>, <A HREF="../../../../net/sf/saxon/om/ValueRepresentation.html" title="interface in net.sf.saxon.om">ValueRepresentation</A><<A HREF="../../../../com/saxonica/functions/map/MapItem.html" title="interface in com.saxonica.functions.map">MapItem</A>></DD>
</DL>
<DL>
<DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../../../com/saxonica/functions/map/ImmutableMap.html" title="class in com.saxonica.functions.map">ImmutableMap</A>, <A HREF="../../../../com/saxonica/functions/map/SingletonMap.html" title="class in com.saxonica.functions.map">SingletonMap</A></DD>
</DL>
<HR>
<DL>
<DT><PRE>public interface <B>MapItem</B><DT>extends <A HREF="../../../../net/sf/saxon/om/FunctionItem.html" title="interface in net.sf.saxon.om">FunctionItem</A><<A HREF="../../../../com/saxonica/functions/map/MapItem.html" title="interface in com.saxonica.functions.map">MapItem</A>>, <A HREF="../../../../net/sf/saxon/om/Item.html" title="interface in net.sf.saxon.om">Item</A><<A HREF="../../../../com/saxonica/functions/map/MapItem.html" title="interface in com.saxonica.functions.map">MapItem</A>>, <A HREF="../../../../net/sf/saxon/om/ValueRepresentation.html" title="interface in net.sf.saxon.om">ValueRepresentation</A><<A HREF="../../../../com/saxonica/functions/map/MapItem.html" title="interface in com.saxonica.functions.map">MapItem</A>></DL>
</PRE>
<P>
Interface supported by different implementations of an XDM map item
<P>
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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 ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../net/sf/saxon/om/ValueRepresentation.html" title="interface in net.sf.saxon.om">ValueRepresentation</A><? extends <A HREF="../../../../net/sf/saxon/om/Item.html" title="interface in net.sf.saxon.om">Item</A>></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/saxonica/functions/map/MapItem.html#get(net.sf.saxon.value.AtomicValue, net.sf.saxon.expr.XPathContext)">get</A></B>(<A HREF="../../../../net/sf/saxon/value/AtomicValue.html" title="class in net.sf.saxon.value">AtomicValue</A> key,
<A HREF="../../../../net/sf/saxon/expr/XPathContext.html" title="interface in net.sf.saxon.expr">XPathContext</A> context)</CODE>
<BR>
Get an entry from the Map</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../net/sf/saxon/lib/StringCollator.html" title="interface in net.sf.saxon.lib">StringCollator</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/saxonica/functions/map/MapItem.html#getCollation()">getCollation</A></B>()</CODE>
<BR>
Get the collation of the map</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="../../../../com/saxonica/functions/map/MapItem.html#getCollationName()">getCollationName</A></B>()</CODE>
<BR>
Get the name of the collation of the map</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../net/sf/saxon/type/AtomicType.html" title="interface in net.sf.saxon.type">AtomicType</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/saxonica/functions/map/MapItem.html#getKeyType(net.sf.saxon.type.TypeHierarchy)">getKeyType</A></B>(<A HREF="../../../../net/sf/saxon/type/TypeHierarchy.html" title="class in net.sf.saxon.type">TypeHierarchy</A> th)</CODE>
<BR>
Get the lowest common item type of the keys in the map</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../net/sf/saxon/value/SequenceType.html" title="class in net.sf.saxon.value">SequenceType</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/saxonica/functions/map/MapItem.html#getValueType(net.sf.saxon.type.TypeHierarchy)">getValueType</A></B>(<A HREF="../../../../net/sf/saxon/type/TypeHierarchy.html" title="class in net.sf.saxon.type">TypeHierarchy</A> th)</CODE>
<BR>
Get the lowest common sequence type of all the values in the map</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="../../../../com/saxonica/functions/map/MapItem.html#isEmpty()">isEmpty</A></B>()</CODE>
<BR>
Ask whether the map is empty</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../net/sf/saxon/tree/iter/UnfailingIterator.html" title="interface in net.sf.saxon.tree.iter">UnfailingIterator</A><<A HREF="../../../../net/sf/saxon/value/AtomicValue.html" title="class in net.sf.saxon.value">AtomicValue</A>></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/saxonica/functions/map/MapItem.html#keys()">keys</A></B>()</CODE>
<BR>
Get the set of all key values in the map.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../com/saxonica/functions/map/MapItem.html" title="interface in com.saxonica.functions.map">MapItem</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/saxonica/functions/map/MapItem.html#remove(net.sf.saxon.value.AtomicValue, net.sf.saxon.expr.XPathContext)">remove</A></B>(<A HREF="../../../../net/sf/saxon/value/AtomicValue.html" title="class in net.sf.saxon.value">AtomicValue</A> key,
<A HREF="../../../../net/sf/saxon/expr/XPathContext.html" title="interface in net.sf.saxon.expr">XPathContext</A> context)</CODE>
<BR>
Remove an entry from the map</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="../../../../com/saxonica/functions/map/MapItem.html#size()">size</A></B>()</CODE>
<BR>
Get the size of the map</TD>
</TR>
</TABLE>
<A NAME="methods_inherited_from_class_net.sf.saxon.om.FunctionItem"><!-- --></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/FunctionItem.html" title="interface in net.sf.saxon.om">FunctionItem</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../net/sf/saxon/om/FunctionItem.html#curry(net.sf.saxon.om.ValueRepresentation[])">curry</A>, <A HREF="../../../../net/sf/saxon/om/FunctionItem.html#deepEquals(net.sf.saxon.om.FunctionItem, net.sf.saxon.expr.XPathContext, net.sf.saxon.expr.sort.GenericAtomicComparer, int)">deepEquals</A>, <A HREF="../../../../net/sf/saxon/om/FunctionItem.html#getArity()">getArity</A>, <A HREF="../../../../net/sf/saxon/om/FunctionItem.html#getFunctionItemType(net.sf.saxon.type.TypeHierarchy)">getFunctionItemType</A>, <A HREF="../../../../net/sf/saxon/om/FunctionItem.html#getFunctionName()">getFunctionName</A>, <A HREF="../../../../net/sf/saxon/om/FunctionItem.html#invoke(net.sf.saxon.om.SequenceIterator[], net.sf.saxon.expr.XPathContext)">invoke</A></CODE></TD>
</TR>
</TABLE>
<A NAME="methods_inherited_from_class_net.sf.saxon.om.Item"><!-- --></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/Item.html" title="interface in net.sf.saxon.om">Item</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../net/sf/saxon/om/Item.html#getStringValue()">getStringValue</A>, <A HREF="../../../../net/sf/saxon/om/Item.html#getStringValueCS()">getStringValueCS</A>, <A HREF="../../../../net/sf/saxon/om/Item.html#getTypedValue()">getTypedValue</A></CODE></TD>
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<!-- ============ METHOD DETAIL ========== -->
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<A NAME="getCollationName()"><!-- --></A><H3>
getCollationName</H3>
<PRE>
<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>getCollationName</B>()</PRE>
<DL>
<DD>Get the name of the collation of the map
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the collation name</DL>
</DD>
</DL>
<HR>
<A NAME="getCollation()"><!-- --></A><H3>
getCollation</H3>
<PRE>
<A HREF="../../../../net/sf/saxon/lib/StringCollator.html" title="interface in net.sf.saxon.lib">StringCollator</A> <B>getCollation</B>()</PRE>
<DL>
<DD>Get the collation of the map
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the collation of the map</DL>
</DD>
</DL>
<HR>
<A NAME="get(net.sf.saxon.value.AtomicValue, net.sf.saxon.expr.XPathContext)"><!-- --></A><H3>
get</H3>
<PRE>
<A HREF="../../../../net/sf/saxon/om/ValueRepresentation.html" title="interface in net.sf.saxon.om">ValueRepresentation</A><? extends <A HREF="../../../../net/sf/saxon/om/Item.html" title="interface in net.sf.saxon.om">Item</A>> <B>get</B>(<A HREF="../../../../net/sf/saxon/value/AtomicValue.html" title="class in net.sf.saxon.value">AtomicValue</A> key,
<A HREF="../../../../net/sf/saxon/expr/XPathContext.html" title="interface in net.sf.saxon.expr">XPathContext</A> context)
throws <A HREF="../../../../net/sf/saxon/trans/XPathException.html" title="class in net.sf.saxon.trans">XPathException</A></PRE>
<DL>
<DD>Get an entry from the Map
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>key</CODE> - the value of the key<DD><CODE>context</CODE> - the XPath dynamic evaluation context
<DT><B>Returns:</B><DD>the value associated with the given key, or null if the key is not present in the map
<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="size()"><!-- --></A><H3>
size</H3>
<PRE>
int <B>size</B>()</PRE>
<DL>
<DD>Get the size of the map
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the number of keys/entries present in this map</DL>
</DD>
</DL>
<HR>
<A NAME="isEmpty()"><!-- --></A><H3>
isEmpty</H3>
<PRE>
boolean <B>isEmpty</B>()</PRE>
<DL>
<DD>Ask whether the map is empty
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>true if and only if the size of the map is zero</DL>
</DD>
</DL>
<HR>
<A NAME="keys()"><!-- --></A><H3>
keys</H3>
<PRE>
<A HREF="../../../../net/sf/saxon/tree/iter/UnfailingIterator.html" title="interface in net.sf.saxon.tree.iter">UnfailingIterator</A><<A HREF="../../../../net/sf/saxon/value/AtomicValue.html" title="class in net.sf.saxon.value">AtomicValue</A>> <B>keys</B>()</PRE>
<DL>
<DD>Get the set of all key values in the map.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>a set containing all the key values present in the map.</DL>
</DD>
</DL>
<HR>
<A NAME="remove(net.sf.saxon.value.AtomicValue, net.sf.saxon.expr.XPathContext)"><!-- --></A><H3>
remove</H3>
<PRE>
<A HREF="../../../../com/saxonica/functions/map/MapItem.html" title="interface in com.saxonica.functions.map">MapItem</A> <B>remove</B>(<A HREF="../../../../net/sf/saxon/value/AtomicValue.html" title="class in net.sf.saxon.value">AtomicValue</A> key,
<A HREF="../../../../net/sf/saxon/expr/XPathContext.html" title="interface in net.sf.saxon.expr">XPathContext</A> context)
throws <A HREF="../../../../net/sf/saxon/trans/XPathException.html" title="class in net.sf.saxon.trans">XPathException</A></PRE>
<DL>
<DD>Remove an entry from the map
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>key</CODE> - the key of the entry to be removed<DD><CODE>context</CODE> - the XPath dynamic context
<DT><B>Returns:</B><DD>a new map in which the requested entry has been removed; or this map
unchanged if the specified key was not present
<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="getKeyType(net.sf.saxon.type.TypeHierarchy)"><!-- --></A><H3>
getKeyType</H3>
<PRE>
<A HREF="../../../../net/sf/saxon/type/AtomicType.html" title="interface in net.sf.saxon.type">AtomicType</A> <B>getKeyType</B>(<A HREF="../../../../net/sf/saxon/type/TypeHierarchy.html" title="class in net.sf.saxon.type">TypeHierarchy</A> th)</PRE>
<DL>
<DD>Get the lowest common item type of the keys in the map
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>th</CODE> - the type hierarchy
<DT><B>Returns:</B><DD>the most specific type to which all the keys belong. If the map is
empty, return AnyAtomicType by convention</DL>
</DD>
</DL>
<HR>
<A NAME="getValueType(net.sf.saxon.type.TypeHierarchy)"><!-- --></A><H3>
getValueType</H3>
<PRE>
<A HREF="../../../../net/sf/saxon/value/SequenceType.html" title="class in net.sf.saxon.value">SequenceType</A> <B>getValueType</B>(<A HREF="../../../../net/sf/saxon/type/TypeHierarchy.html" title="class in net.sf.saxon.type">TypeHierarchy</A> th)</PRE>
<DL>
<DD>Get the lowest common sequence type of all the values in the map
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>th</CODE> - the type hierarchy
<DT><B>Returns:</B><DD>the most specific sequence type to which all the values belong. If the map
is empty, return ANY_SEQUENCE by convention</DL>
</DD>
</DL>
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