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@Target(value={METHOD,FIELD}) @Retention(value=RUNTIME) public @interface MapKeyManyToMany
Define the map key columns as an explicit column holding the map key
This is completly different from MapKey
which use an existing column
This annotation and MapKey
are mutually exclusive
Optional Element Summary | |
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JoinColumn[] |
joinColumns
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java.lang.Class |
targetEntity
Represent the key class in a Map Only useful if the collection does not use generics |
public abstract JoinColumn[] joinColumns
public abstract java.lang.Class targetEntity
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