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| javax.persistence</FONT> |
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| Annotation Type MapKeyEnumerated</H2> |
| <HR> |
| <DL> |
| <DT><PRE><FONT SIZE="-1">@Target(value={METHOD,FIELD}) |
| @Retention(value=RUNTIME) |
| </FONT>public @interface <B>MapKeyEnumerated</B></DL> |
| </PRE> |
| |
| <P> |
| Specifies the enum type for a map key whose basic type is an enumerated type. |
| |
| The <code>MapKeyEnumerated</code> annotation can be applied to an |
| element collection or relationship of type <code>java.util.Map</code>, in |
| conjunction with the <code>ElementCollection</code>, <code>OneToMany</code>, or |
| <code>ManyToMany</code> annotation. |
| If the enumerated type is not specified or the <code>MapKeyEnumerated</code> |
| annotation is not used, the enumerated type is assumed to be |
| <code>ORDINAL</code>. |
| |
| <pre> |
| Example: |
| |
| public enum ProjectStatus {COMPLETE, DELAYED, CANCELLED, IN_PROGRESS} |
| |
| public enum SalaryRate {JUNIOR, SENIOR, MANAGER, EXECUTIVE} |
| |
| @Entity public class Employee { |
| @ManyToMany |
| public Projects<ProjectStatus, Project> getProjects() {...} |
| |
| @OneToMany |
| @MapKeyEnumerated(STRING) |
| public Map<SalaryRate, Employee> getEmployees() {...} |
| ... |
| } |
| </pre> |
| <P> |
| |
| <P> |
| <DL> |
| <DT><B>See Also:</B><DD><A HREF="../../javax/persistence/ElementCollection.html" title="annotation in javax.persistence"><CODE>ElementCollection</CODE></A>, |
| <A HREF="../../javax/persistence/OneToMany.html" title="annotation in javax.persistence"><CODE>OneToMany</CODE></A>, |
| <A HREF="../../javax/persistence/ManyToMany.html" title="annotation in javax.persistence"><CODE>ManyToMany</CODE></A><DT><B>Since:</B></DT> |
| <DD>Java Persistence 2.0</DD> |
| </DL> |
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| <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
| <B>Optional Element Summary</B></FONT></TH> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> <A HREF="../../javax/persistence/EnumType.html" title="enum in javax.persistence">EnumType</A></CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../javax/persistence/MapKeyEnumerated.html#value()">value</A></B></CODE> |
| |
| <BR> |
| (Optional) The type used in mapping a map key enum type.</TD> |
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| |
| <P> |
| <A NAME="value()"><!-- --></A><H3> |
| value</H3> |
| <PRE> |
| public abstract <A HREF="../../javax/persistence/EnumType.html" title="enum in javax.persistence">EnumType</A> <B>value</B></PRE> |
| <DL> |
| <DD>(Optional) The type used in mapping a map key enum type. |
| <P> |
| <DD><DL> |
| </DL> |
| </DD> |
| <DD><DL> |
| </DL> |
| <DL> |
| <DT><B>Default:</B><DD>javax.persistence.EnumType.ORDINAL</DD> |
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