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BiMap (Google Collections Library 1.0-rc5)
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<FONT SIZE="-1">
com.google.common.collect</FONT>
<BR>
Interface BiMap&lt;K,V&gt;</H2>
<DL>
<DT><B>All Superinterfaces:</B> <DD><A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</A>&lt;K,V&gt;</DD>
</DL>
<DL>
<DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../../../com/google/common/collect/EnumBiMap.html" title="class in com.google.common.collect">EnumBiMap</A>, <A HREF="../../../../com/google/common/collect/EnumHashBiMap.html" title="class in com.google.common.collect">EnumHashBiMap</A>, <A HREF="../../../../com/google/common/collect/HashBiMap.html" title="class in com.google.common.collect">HashBiMap</A>, <A HREF="../../../../com/google/common/collect/ImmutableBiMap.html" title="class in com.google.common.collect">ImmutableBiMap</A></DD>
</DL>
<HR>
<DL>
<DT><PRE>public interface <B>BiMap&lt;K,V&gt;</B><DT>extends <A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</A>&lt;K,V&gt;</DL>
</PRE>
<P>
A bimap (or "bidirectional map") is a map that preserves the uniqueness of
its values as well as that of its keys. This constraint enables bimaps to
support an "inverse view", which is another bimap containing the same entries
as this bimap but with reversed keys and values.
<P>
<P>
<DL>
<DT><B>Author:</B></DT>
<DD>Kevin Bourrillion</DD>
</DL>
<HR>
<P>
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<TH ALIGN="left"><B>Nested classes/interfaces inherited from interface java.util.<A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</A></B></TH>
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<TD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.Entry.html?is-external=true" title="class or interface in java.util">Map.Entry</A>&lt;<A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.Entry.html?is-external=true" title="class or interface in java.util">K</A>,<A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.Entry.html?is-external=true" title="class or interface in java.util">V</A>&gt;</CODE></TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../../com/google/common/collect/BiMap.html" title="type parameter in BiMap">V</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/google/common/collect/BiMap.html#forcePut(K, V)">forcePut</A></B>(<A HREF="../../../../com/google/common/collect/BiMap.html" title="type parameter in BiMap">K</A>&nbsp;key,
<A HREF="../../../../com/google/common/collect/BiMap.html" title="type parameter in BiMap">V</A>&nbsp;value)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;An alternate form of <code>put</code> that silently removes any existing entry
with the value <code>value</code> before proceeding with the <A HREF="../../../../com/google/common/collect/BiMap.html#put(K, V)"><CODE>put(K, V)</CODE></A>
operation.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../../com/google/common/collect/BiMap.html" title="interface in com.google.common.collect">BiMap</A>&lt;<A HREF="../../../../com/google/common/collect/BiMap.html" title="type parameter in BiMap">V</A>,<A HREF="../../../../com/google/common/collect/BiMap.html" title="type parameter in BiMap">K</A>&gt;</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/google/common/collect/BiMap.html#inverse()">inverse</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the inverse view of this bimap, which maps each of this bimap's
values to its associated key.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../../com/google/common/collect/BiMap.html" title="type parameter in BiMap">V</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/google/common/collect/BiMap.html#put(K, V)">put</A></B>(<A HREF="../../../../com/google/common/collect/BiMap.html" title="type parameter in BiMap">K</A>&nbsp;key,
<A HREF="../../../../com/google/common/collect/BiMap.html" title="type parameter in BiMap">V</A>&nbsp;value)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Associates the specified value with the specified key in this map
(optional operation).</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/google/common/collect/BiMap.html#putAll(java.util.Map)">putAll</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</A>&lt;? extends <A HREF="../../../../com/google/common/collect/BiMap.html" title="type parameter in BiMap">K</A>,? extends <A HREF="../../../../com/google/common/collect/BiMap.html" title="type parameter in BiMap">V</A>&gt;&nbsp;map)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Copies all of the mappings from the specified map to this map
(optional operation).</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</A>&lt;<A HREF="../../../../com/google/common/collect/BiMap.html" title="type parameter in BiMap">V</A>&gt;</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/google/common/collect/BiMap.html#values()">values</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns a <A HREF="http://java.sun.com/javase/6/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util"><CODE>Collection</CODE></A> view of the values contained in this map.</TD>
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<TH ALIGN="left"><B>Methods inherited from interface java.util.<A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true#clear()" title="class or interface in java.util">clear</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true#containsKey(java.lang.Object)" title="class or interface in java.util">containsKey</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true#containsValue(java.lang.Object)" title="class or interface in java.util">containsValue</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true#entrySet()" title="class or interface in java.util">entrySet</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.util">equals</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true#get(java.lang.Object)" title="class or interface in java.util">get</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true#hashCode()" title="class or interface in java.util">hashCode</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true#isEmpty()" title="class or interface in java.util">isEmpty</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true#keySet()" title="class or interface in java.util">keySet</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true#remove(java.lang.Object)" title="class or interface in java.util">remove</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true#size()" title="class or interface in java.util">size</A></CODE></TD>
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<A NAME="put(java.lang.Object,java.lang.Object)"><!-- --></A><A NAME="put(K, V)"><!-- --></A><H3>
put</H3>
<PRE>
<A HREF="../../../../com/google/common/collect/BiMap.html" title="type parameter in BiMap">V</A> <B>put</B>(<FONT SIZE="-1"><A HREF="http://jsr-305.googlecode.com/svn/trunk/javadoc/javax/annotation/Nullable.html?is-external=true" title="class or interface in javax.annotation">@Nullable</A></FONT>
<A HREF="../../../../com/google/common/collect/BiMap.html" title="type parameter in BiMap">K</A>&nbsp;key,
<FONT SIZE="-1"><A HREF="http://jsr-305.googlecode.com/svn/trunk/javadoc/javax/annotation/Nullable.html?is-external=true" title="class or interface in javax.annotation">@Nullable</A></FONT>
<A HREF="../../../../com/google/common/collect/BiMap.html" title="type parameter in BiMap">V</A>&nbsp;value)</PRE>
<DL>
<DD>Associates the specified value with the specified key in this map
(optional operation). If the map previously contained a mapping for
the key, the old value is replaced by the specified value. (A map
<tt>m</tt> is said to contain a mapping for a key <tt>k</tt> if and only
if <A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true#containsKey(java.lang.Object)" title="class or interface in java.util"><CODE>m.containsKey(k)</CODE></A> would return
<tt>true</tt>.)
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true#put(K, V)" title="class or interface in java.util">put</A></CODE> in interface <CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</A>&lt;<A HREF="../../../../com/google/common/collect/BiMap.html" title="type parameter in BiMap">K</A>,<A HREF="../../../../com/google/common/collect/BiMap.html" title="type parameter in BiMap">V</A>&gt;</CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>key</CODE> - key with which the specified value is to be associated<DD><CODE>value</CODE> - value to be associated with the specified key
<DT><B>Returns:</B><DD>the previous value associated with <tt>key</tt>, or
<tt>null</tt> if there was no mapping for <tt>key</tt>.
(A <tt>null</tt> return can also indicate that the map
previously associated <tt>null</tt> with <tt>key</tt>,
if the implementation supports <tt>null</tt> values.)
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if the given value is already bound to a
different key in this bimap. The bimap will remain unmodified in this
event. To avoid this exception, call <A HREF="../../../../com/google/common/collect/BiMap.html#forcePut(K, V)"><CODE>forcePut(K, V)</CODE></A> instead.</DL>
</DD>
</DL>
<HR>
<A NAME="forcePut(java.lang.Object,java.lang.Object)"><!-- --></A><A NAME="forcePut(K, V)"><!-- --></A><H3>
forcePut</H3>
<PRE>
<A HREF="../../../../com/google/common/collect/BiMap.html" title="type parameter in BiMap">V</A> <B>forcePut</B>(<FONT SIZE="-1"><A HREF="http://jsr-305.googlecode.com/svn/trunk/javadoc/javax/annotation/Nullable.html?is-external=true" title="class or interface in javax.annotation">@Nullable</A></FONT>
<A HREF="../../../../com/google/common/collect/BiMap.html" title="type parameter in BiMap">K</A>&nbsp;key,
<FONT SIZE="-1"><A HREF="http://jsr-305.googlecode.com/svn/trunk/javadoc/javax/annotation/Nullable.html?is-external=true" title="class or interface in javax.annotation">@Nullable</A></FONT>
<A HREF="../../../../com/google/common/collect/BiMap.html" title="type parameter in BiMap">V</A>&nbsp;value)</PRE>
<DL>
<DD>An alternate form of <code>put</code> that silently removes any existing entry
with the value <code>value</code> before proceeding with the <A HREF="../../../../com/google/common/collect/BiMap.html#put(K, V)"><CODE>put(K, V)</CODE></A>
operation. If the bimap previously contained the provided key-value
mapping, this method has no effect.
<p>Note that a successful call to this method could cause the size of the
bimap to increase by one, stay the same, or even decrease by one.
<p><b>Warning</b>: If an existing entry with this value is removed, the key
for that entry is discarded and not returned.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>key</CODE> - the key with which the specified value is to be associated<DD><CODE>value</CODE> - the value to be associated with the specified key
<DT><B>Returns:</B><DD>the value which was previously associated with the key, which may
be <code>null</code>, or <code>null</code> if there was no previous entry</DL>
</DD>
</DL>
<HR>
<A NAME="putAll(java.util.Map)"><!-- --></A><H3>
putAll</H3>
<PRE>
void <B>putAll</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</A>&lt;? extends <A HREF="../../../../com/google/common/collect/BiMap.html" title="type parameter in BiMap">K</A>,? extends <A HREF="../../../../com/google/common/collect/BiMap.html" title="type parameter in BiMap">V</A>&gt;&nbsp;map)</PRE>
<DL>
<DD>Copies all of the mappings from the specified map to this map
(optional operation). The effect of this call is equivalent to that
of calling <A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true#put(K, V)" title="class or interface in java.util"><CODE>put(k, v)</CODE></A> on this map once
for each mapping from key <tt>k</tt> to value <tt>v</tt> in the
specified map. The behavior of this operation is undefined if the
specified map is modified while the operation is in progress.
<p><b>Warning:</b> the results of calling this method may vary depending on
the iteration order of <code>map</code>.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true#putAll(java.util.Map)" title="class or interface in java.util">putAll</A></CODE> in interface <CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</A>&lt;<A HREF="../../../../com/google/common/collect/BiMap.html" title="type parameter in BiMap">K</A>,<A HREF="../../../../com/google/common/collect/BiMap.html" title="type parameter in BiMap">V</A>&gt;</CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>map</CODE> - mappings to be stored in this map
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if an attempt to <code>put</code> any
entry fails. Note that some map entries may have been added to the
bimap before the exception was thrown.</DL>
</DD>
</DL>
<HR>
<A NAME="values()"><!-- --></A><H3>
values</H3>
<PRE>
<A HREF="http://java.sun.com/javase/6/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</A>&lt;<A HREF="../../../../com/google/common/collect/BiMap.html" title="type parameter in BiMap">V</A>&gt; <B>values</B>()</PRE>
<DL>
<DD>Returns a <A HREF="http://java.sun.com/javase/6/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util"><CODE>Collection</CODE></A> view of the values contained in this map.
The collection is backed by the map, so changes to the map are
reflected in the collection, and vice-versa. If the map is
modified while an iteration over the collection is in progress
(except through the iterator's own <tt>remove</tt> operation),
the results of the iteration are undefined. The collection
supports element removal, which removes the corresponding
mapping from the map, via the <tt>Iterator.remove</tt>,
<tt>Collection.remove</tt>, <tt>removeAll</tt>,
<tt>retainAll</tt> and <tt>clear</tt> operations. It does not
support the <tt>add</tt> or <tt>addAll</tt> operations.
<p>Because a bimap has unique values, this method returns a <A HREF="http://java.sun.com/javase/6/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util"><CODE>Set</CODE></A>,
instead of the <A HREF="http://java.sun.com/javase/6/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util"><CODE>Collection</CODE></A> specified in the <A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util"><CODE>Map</CODE></A>
interface.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true#values()" title="class or interface in java.util">values</A></CODE> in interface <CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</A>&lt;<A HREF="../../../../com/google/common/collect/BiMap.html" title="type parameter in BiMap">K</A>,<A HREF="../../../../com/google/common/collect/BiMap.html" title="type parameter in BiMap">V</A>&gt;</CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>a collection view of the values contained in this map</DL>
</DD>
</DL>
<HR>
<A NAME="inverse()"><!-- --></A><H3>
inverse</H3>
<PRE>
<A HREF="../../../../com/google/common/collect/BiMap.html" title="interface in com.google.common.collect">BiMap</A>&lt;<A HREF="../../../../com/google/common/collect/BiMap.html" title="type parameter in BiMap">V</A>,<A HREF="../../../../com/google/common/collect/BiMap.html" title="type parameter in BiMap">K</A>&gt; <B>inverse</B>()</PRE>
<DL>
<DD>Returns the inverse view of this bimap, which maps each of this bimap's
values to its associated key. The two bimaps are backed by the same data;
any changes to one will appear in the other.
<p><b>Note:</b>There is no guaranteed correspondence between the iteration
order of a bimap and that of its inverse.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the inverse view of this bimap</DL>
</DD>
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