javax.persistence.Convert Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of javax.persistence Show documentation

The Java Persistence API (JPA) : a standard interface-based Java model abstraction of persistence, developed by the JCP.

There is a newer version: 2.2.4

Show newest version

/*
 * Copyright (c) 2008, 2009, 2011 Oracle, Inc. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
 * which accompanies this distribution.  The Eclipse Public License is available
 * at http://www.eclipse.org/legal/epl-v10.html and the Eclipse Distribution License
 * is available at http://www.eclipse.org/org/documents/edl-v10.php.
 */
package javax.persistence;

import java.lang.annotation.Retention;
import java.lang.annotation.Target;

import static java.lang.annotation.ElementType.FIELD;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.ElementType.TYPE;
import static java.lang.annotation.RetentionPolicy.RUNTIME;

import java.lang.annotation.Repeatable;

/**
 * The Convert annotation is used to specify the conversion of a Basic field or
 * property. It is not necessary to use the Basic annotation or corresponding XML
 * element to specify the basic type.
 *
 * @since Java Persistence 2.1
 */
@Target({METHOD, FIELD, TYPE})
@Retention(RUNTIME)
@Repeatable(Converts.class)
public @interface Convert {
	/**
	 * Specifies the converter to be applied. A value for this
	 * element must be specified if multiple converters would
	 * otherwise apply.
	 * @return converter
	 */
	Class converter() default void.class;
	/**
	 * The attributeName must be specified unless the Convert annotation
	 * is on an attribute of basic type or on an element collection of
	 * basic type. In these cases, attributeName must not be
	 * specified.
	 * @return attribute name
	 */
	String attributeName() default "";

	/**
	 * Used to disable an auto-apply or inherited converter.
	 * If disableConversion is true, the converter element should
	 * not be specified.
	 * @return disable
	 */
	boolean disableConversion() default false;
}