javax.persistence.SecondaryTables Maven / Gradle / Ivy
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package javax.persistence;
import java.lang.annotation.Target;
import java.lang.annotation.Retention;
import static java.lang.annotation.ElementType.TYPE;
import static java.lang.annotation.RetentionPolicy.RUNTIME;
/**
* This annotation is used to specify multiple secondary tables
* for an entity.
*
*
* Example 1: Multiple secondary tables assuming primary key columns are named the same in all tables.
*
* @Entity
* @Table(name="EMPLOYEE")
* @SecondaryTables({
* @SecondaryTable(name="EMP_DETAIL"),
* @SecondaryTable(name="EMP_HIST")
* })
* public class Employee { ... }
*
* Example 2: Multiple secondary tables with differently named primary key columns.
*
* @Entity
* @Table(name="EMPLOYEE")
* @SecondaryTables({
* @SecondaryTable(name="EMP_DETAIL",
* pkJoinColumns=@PrimaryKeyJoinColumn(name="EMPL_ID")),
* @SecondaryTable(name="EMP_HIST",
* pkJoinColumns=@PrimaryKeyJoinColumn(name="EMPLOYEE_ID"))
* })
* public class Employee { ... }
*
*
* @since Java Persistence 1.0
*/
@Target(TYPE)
@Retention(RUNTIME)
public @interface SecondaryTables {
/** The secondary tables for an entity. */
SecondaryTable[] value();
}