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Hibernate O/RM implementation of the Jakarta Persistence specification

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/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * License: GNU Lesser General Public License (LGPL), version 2.1 or later
 * See the lgpl.txt file in the root directory or http://www.gnu.org/licenses/lgpl-2.1.html
 */
package org.hibernate.jpa.event.internal;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

import org.hibernate.jpa.event.spi.Callback;
import org.hibernate.jpa.event.spi.CallbackDefinition;
import org.hibernate.jpa.event.spi.CallbackType;
import org.hibernate.resource.beans.spi.ManagedBeanRegistry;

/**
 * Represents a JPA callback on the entity itself
 *
 * @author Kabir Khan
 * @author Steve Ebersole
 */
final class EntityCallback extends AbstractCallback {

	public static class Definition implements CallbackDefinition {
		private final Method callbackMethod;
		private final CallbackType callbackType;

		public Definition(Method callbackMethod, CallbackType callbackType) {
			this.callbackMethod = callbackMethod;
			this.callbackType = callbackType;
		}

		@Override
		public Callback createCallback(ManagedBeanRegistry beanRegistry) {
			return new EntityCallback( callbackMethod, callbackType );
		}
	}

	private final Method callbackMethod;

	private EntityCallback(Method callbackMethod, CallbackType callbackType) {
		super( callbackType );
		this.callbackMethod = callbackMethod;
	}

	@Override
	public boolean performCallback(Object entity) {
		try {
			callbackMethod.invoke( entity );
			return true;
		}
		catch (InvocationTargetException e) {
			//keep runtime exceptions as is
			if ( e.getTargetException() instanceof RuntimeException ) {
				throw (RuntimeException) e.getTargetException();
			}
			else {
				throw new RuntimeException( e.getTargetException() );
			}
		}
		catch (Exception e) {
			throw new RuntimeException( e );
		}
	}
}