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## org.apache.openjpa.persistence.jdbc
Annotation Type KeyForeignKey

    @Target(value={METHOD,FIELD})
    @Retention(value=RUNTIME)
    public @interface KeyForeignKey

Foreign key on map key columns.

Since:
  0.4.0, 1.1.0
Author:
  Abe White

Optional Element Summary
`boolean` | `deferred`
`ForeignKeyAction` | `deleteAction`
`boolean` | `enabled`
`String` | `name`
`ForeignKeyAction` | `updateAction`

### name

    public abstract String name

  Default:
    ""

### enabled

    public abstract boolean enabled

  Default:
    true

### deferred

    public abstract boolean deferred

  Default:
    false

### deleteAction

    public abstract ForeignKeyAction deleteAction

  Default:
    org.apache.openjpa.persistence.jdbc.ForeignKeyAction.RESTRICT

### updateAction

    public abstract ForeignKeyAction updateAction

  Default:
    org.apache.openjpa.persistence.jdbc.ForeignKeyAction.RESTRICT

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