/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2010, Red Hat Inc. or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Inc.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.annotations;
import static java.lang.annotation.ElementType.FIELD;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.RetentionPolicy.RUNTIME;
import java.lang.annotation.Retention;
import javax.persistence.Column;
import javax.persistence.FetchType;
/**
* Defined a ToMany association pointing to different entity types.
* Matching the according entity type is doe through a metadata discriminator column
* This kind of mapping should be only marginal.
*
* @author Emmanuel Bernard
*/
@java.lang.annotation.Target({METHOD, FIELD})
@Retention(RUNTIME)
public @interface ManyToAny {
/**
* Metadata definition used.
* If defined, should point to a @AnyMetaDef name
* If not defined, the local (ie in the same field or property) @AnyMetaDef is used
*/
String metaDef() default "";
/**
* Metadata dicriminator column description, This column will hold the meta value corresponding to the
* targeted entity.
*/
Column metaColumn();
/**
* Defines whether the value of the field or property should be lazily loaded or must be
* eagerly fetched. The EAGER strategy is a requirement on the persistence provider runtime
* that the value must be eagerly fetched. The LAZY strategy is applied when bytecode
* enhancement is used. If not specified, defaults to EAGER.
*/
FetchType fetch() default FetchType.EAGER;
}