https://github.com/javaee/jpa-spec: Java(TM) Persistence API 
Copyright (c) 2008 - 2013 Oracle Corporation. 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.
Contributors:
    Linda DeMichiel - Java Persistence 2.1
    Linda DeMichiel - Java Persistence 2.0

/*******************************************************************************
 * Copyright (c) 2008 - 2013 Oracle Corporation. 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.
 *
 * Contributors:
 *     Linda DeMichiel - Java Persistence 2.1
 *     Linda DeMichiel - Java Persistence 2.0
 *
 ******************************************************************************/ 
package javax.persistence;

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


This annotation must be specified for persistent fields 
or properties of type java.util.Date and 
java.util.Calendar. It may only be specified for fields 
or properties of these types.

 The Temporal annotation may be used in conjunction with the Basic annotation, the Id annotation, or the ElementCollection annotation (when the element collection value is of such a temporal type. 
    Example:
    @Temporal(DATE)
    protected java.util.Date endDate;



Since:Java Persistence 1.0
/**
 * This annotation must be specified for persistent fields 
 * or properties of type <code>java.util.Date</code> and 
 * <code>java.util.Calendar</code>. It may only be specified for fields 
 * or properties of these types.
 * 
 * <p> The <code>Temporal</code> annotation may be used in 
 * conjunction with the {@link Basic} annotation, the {@link Id}
 * annotation, or the {@link ElementCollection} annotation (when
 * the element collection value is of such a temporal type.
 *
 * <pre>
 *     Example:
 * 
 *     &#064;Temporal(DATE)
 *     protected java.util.Date endDate;
 * </pre>
 *
 * @since Java Persistence 1.0
 */
@Target({METHOD, FIELD}) 
@Retention(RUNTIME)
public @interface Temporal {

    
The type used in mapping java.util.Date or java.util.Calendar. 
/** The type used in mapping <code>java.util.Date</code> or <code>java.util.Calendar</code>. */
    TemporalType value();
}