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CharIdentity (JDO API 3.0)
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javax.jdo.identity</FONT>
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Class CharIdentity</H2>
<PRE>
java.lang.Object
<IMG SRC="../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../javax/jdo/identity/SingleFieldIdentity.html" title="class in javax.jdo.identity">javax.jdo.identity.SingleFieldIdentity</A>
<IMG SRC="../../../resources/inherit.gif" ALT="extended by "><B>javax.jdo.identity.CharIdentity</B>
</PRE>
<DL>
<DT><B>All Implemented Interfaces:</B> <DD>java.io.Externalizable, java.io.Serializable, java.lang.Comparable</DD>
</DL>
<HR>
<DL>
<DT><PRE>public class <B>CharIdentity</B><DT>extends <A HREF="../../../javax/jdo/identity/SingleFieldIdentity.html" title="class in javax.jdo.identity">SingleFieldIdentity</A></DL>
</PRE>
<P>
This class is for identity with a single character field.
<P>
<P>
<DL>
<DT><B>Version:</B></DT>
<DD>2.0</DD>
<DT><B>See Also:</B><DD><A HREF="../../../serialized-form.html#javax.jdo.identity.CharIdentity">Serialized Form</A></DL>
<HR>
<P>
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<B>Field Summary</B></FONT></TH>
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&nbsp;<A NAME="fields_inherited_from_class_javax.jdo.identity.SingleFieldIdentity"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TH ALIGN="left"><B>Fields inherited from class javax.jdo.identity.<A HREF="../../../javax/jdo/identity/SingleFieldIdentity.html" title="class in javax.jdo.identity">SingleFieldIdentity</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../javax/jdo/identity/SingleFieldIdentity.html#hashCode">hashCode</A>, <A HREF="../../../javax/jdo/identity/SingleFieldIdentity.html#keyAsObject">keyAsObject</A></CODE></TD>
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<TD><CODE><B><A HREF="../../../javax/jdo/identity/CharIdentity.html#CharIdentity()">CharIdentity</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Constructor only for Externalizable.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../javax/jdo/identity/CharIdentity.html#CharIdentity(java.lang.Class, char)">CharIdentity</A></B>(java.lang.Class&nbsp;pcClass,
char&nbsp;key)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Constructor with class and key.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../javax/jdo/identity/CharIdentity.html#CharIdentity(java.lang.Class, java.lang.Character)">CharIdentity</A></B>(java.lang.Class&nbsp;pcClass,
java.lang.Character&nbsp;key)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Constructor with class and key.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../javax/jdo/identity/CharIdentity.html#CharIdentity(java.lang.Class, java.lang.String)">CharIdentity</A></B>(java.lang.Class&nbsp;pcClass,
java.lang.String&nbsp;str)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Constructor with class and key.</TD>
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<CODE>&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../javax/jdo/identity/CharIdentity.html#compareTo(java.lang.Object)">compareTo</A></B>(java.lang.Object&nbsp;o)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Determine the ordering of identity objects.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;java.lang.Object</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../javax/jdo/identity/CharIdentity.html#createKeyAsObject()">createKeyAsObject</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Create the key as an Object.</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="../../../javax/jdo/identity/CharIdentity.html#equals(java.lang.Object)">equals</A></B>(java.lang.Object&nbsp;obj)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Determine if the other object represents the same object id.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;char</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../javax/jdo/identity/CharIdentity.html#getKey()">getKey</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Return the key.</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="../../../javax/jdo/identity/CharIdentity.html#readExternal(java.io.ObjectInput)">readExternal</A></B>(java.io.ObjectInput&nbsp;in)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Read this object.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../javax/jdo/identity/CharIdentity.html#toString()">toString</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Return the String form of the key.</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="../../../javax/jdo/identity/CharIdentity.html#writeExternal(java.io.ObjectOutput)">writeExternal</A></B>(java.io.ObjectOutput&nbsp;out)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Write this object.</TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_javax.jdo.identity.SingleFieldIdentity"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from class javax.jdo.identity.<A HREF="../../../javax/jdo/identity/SingleFieldIdentity.html" title="class in javax.jdo.identity">SingleFieldIdentity</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../javax/jdo/identity/SingleFieldIdentity.html#assertKeyNotNull(java.lang.Object)">assertKeyNotNull</A>, <A HREF="../../../javax/jdo/identity/SingleFieldIdentity.html#compare(javax.jdo.identity.SingleFieldIdentity)">compare</A>, <A HREF="../../../javax/jdo/identity/SingleFieldIdentity.html#getKeyAsObject()">getKeyAsObject</A>, <A HREF="../../../javax/jdo/identity/SingleFieldIdentity.html#getTargetClass()">getTargetClass</A>, <A HREF="../../../javax/jdo/identity/SingleFieldIdentity.html#getTargetClassName()">getTargetClassName</A>, <A HREF="../../../javax/jdo/identity/SingleFieldIdentity.html#hashClassName()">hashClassName</A>, <A HREF="../../../javax/jdo/identity/SingleFieldIdentity.html#hashCode()">hashCode</A>, <A HREF="../../../javax/jdo/identity/SingleFieldIdentity.html#setKeyAsObject(java.lang.Object)">setKeyAsObject</A></CODE></TD>
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&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.Object</B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE>clone, finalize, getClass, notify, notifyAll, wait, wait, wait</CODE></TD>
</TR>
</TABLE>
&nbsp;
<P>
<!-- ========= CONSTRUCTOR DETAIL ======== -->
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<B>Constructor Detail</B></FONT></TH>
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<A NAME="CharIdentity(java.lang.Class, char)"><!-- --></A><H3>
CharIdentity</H3>
<PRE>
public <B>CharIdentity</B>(java.lang.Class&nbsp;pcClass,
char&nbsp;key)</PRE>
<DL>
<DD>Constructor with class and key.
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>pcClass</CODE> - the target class<DD><CODE>key</CODE> - the key</DL>
</DL>
<HR>
<A NAME="CharIdentity(java.lang.Class, java.lang.Character)"><!-- --></A><H3>
CharIdentity</H3>
<PRE>
public <B>CharIdentity</B>(java.lang.Class&nbsp;pcClass,
java.lang.Character&nbsp;key)</PRE>
<DL>
<DD>Constructor with class and key.
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>pcClass</CODE> - the target class<DD><CODE>key</CODE> - the key</DL>
</DL>
<HR>
<A NAME="CharIdentity(java.lang.Class, java.lang.String)"><!-- --></A><H3>
CharIdentity</H3>
<PRE>
public <B>CharIdentity</B>(java.lang.Class&nbsp;pcClass,
java.lang.String&nbsp;str)</PRE>
<DL>
<DD>Constructor with class and key. The String must have exactly one
character.
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>pcClass</CODE> - the target class<DD><CODE>str</CODE> - the key</DL>
</DL>
<HR>
<A NAME="CharIdentity()"><!-- --></A><H3>
CharIdentity</H3>
<PRE>
public <B>CharIdentity</B>()</PRE>
<DL>
<DD>Constructor only for Externalizable.
<P>
</DL>
<!-- ============ METHOD DETAIL ========== -->
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<A NAME="getKey()"><!-- --></A><H3>
getKey</H3>
<PRE>
public char <B>getKey</B>()</PRE>
<DL>
<DD>Return the key.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the key</DL>
</DD>
</DL>
<HR>
<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public java.lang.String <B>toString</B>()</PRE>
<DL>
<DD>Return the String form of the key.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE>toString</CODE> in class <CODE>java.lang.Object</CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the String form of the key</DL>
</DD>
</DL>
<HR>
<A NAME="equals(java.lang.Object)"><!-- --></A><H3>
equals</H3>
<PRE>
public boolean <B>equals</B>(java.lang.Object&nbsp;obj)</PRE>
<DL>
<DD>Determine if the other object represents the same object id.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../javax/jdo/identity/SingleFieldIdentity.html#equals(java.lang.Object)">equals</A></CODE> in class <CODE><A HREF="../../../javax/jdo/identity/SingleFieldIdentity.html" title="class in javax.jdo.identity">SingleFieldIdentity</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>obj</CODE> - the other object
<DT><B>Returns:</B><DD>true if both objects represent the same object id</DL>
</DD>
</DL>
<HR>
<A NAME="compareTo(java.lang.Object)"><!-- --></A><H3>
compareTo</H3>
<PRE>
public int <B>compareTo</B>(java.lang.Object&nbsp;o)</PRE>
<DL>
<DD>Determine the ordering of identity objects.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>o</CODE> - Other identity
<DT><B>Returns:</B><DD>The relative ordering between the objects<DT><B>Since:</B></DT>
<DD>2.2</DD>
</DL>
</DD>
</DL>
<HR>
<A NAME="createKeyAsObject()"><!-- --></A><H3>
createKeyAsObject</H3>
<PRE>
protected java.lang.Object <B>createKeyAsObject</B>()</PRE>
<DL>
<DD>Create the key as an Object.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../javax/jdo/identity/SingleFieldIdentity.html#createKeyAsObject()">createKeyAsObject</A></CODE> in class <CODE><A HREF="../../../javax/jdo/identity/SingleFieldIdentity.html" title="class in javax.jdo.identity">SingleFieldIdentity</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the key as an Object<DT><B>Since:</B></DT>
<DD>2.0</DD>
</DL>
</DD>
</DL>
<HR>
<A NAME="writeExternal(java.io.ObjectOutput)"><!-- --></A><H3>
writeExternal</H3>
<PRE>
public void <B>writeExternal</B>(java.io.ObjectOutput&nbsp;out)
throws java.io.IOException</PRE>
<DL>
<DD>Write this object. Write the superclass first.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>writeExternal</CODE> in interface <CODE>java.io.Externalizable</CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../javax/jdo/identity/SingleFieldIdentity.html#writeExternal(java.io.ObjectOutput)">writeExternal</A></CODE> in class <CODE><A HREF="../../../javax/jdo/identity/SingleFieldIdentity.html" title="class in javax.jdo.identity">SingleFieldIdentity</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>out</CODE> - the output
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE></DL>
</DD>
</DL>
<HR>
<A NAME="readExternal(java.io.ObjectInput)"><!-- --></A><H3>
readExternal</H3>
<PRE>
public void <B>readExternal</B>(java.io.ObjectInput&nbsp;in)
throws java.io.IOException,
java.lang.ClassNotFoundException</PRE>
<DL>
<DD>Read this object. Read the superclass first.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>readExternal</CODE> in interface <CODE>java.io.Externalizable</CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../javax/jdo/identity/SingleFieldIdentity.html#readExternal(java.io.ObjectInput)">readExternal</A></CODE> in class <CODE><A HREF="../../../javax/jdo/identity/SingleFieldIdentity.html" title="class in javax.jdo.identity">SingleFieldIdentity</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>in</CODE> - the input
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE>
<DD><CODE>java.lang.ClassNotFoundException</CODE></DL>
</DD>
</DL>
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