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Enables C3P0 with Hibernate connections in the GuicedPersistence provider Requires JDK 8 and up

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/*
 * Distributed as part of c3p0 v.0.9.5.3
 *
 * Copyright (C) 2018 Machinery For Change, Inc.
 *
 * Author: Steve Waldman 
 *
 * This library is free software; you can redistribute it and/or modify
 * it under the terms of EITHER:
 *
 *     1) The GNU Lesser General Public License (LGPL), version 2.1, as 
 *        published by the Free Software Foundation
 *
 * OR
 *
 *     2) The Eclipse Public License (EPL), version 1.0
 *
 * You may choose which license to accept if you wish to redistribute
 * or modify this work. You may offer derivatives of this work
 * under the license you have chosen, or you may provide the same
 * choice of license which you have been offered here.
 *
 * This software 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.
 *
 * You should have received copies of both LGPL v2.1 and EPL v1.0
 * along with this software; see the files LICENSE-EPL and LICENSE-LGPL.
 * If not, the text of these licenses are currently available at
 *
 * LGPL v2.1: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
 *  EPL v1.0: http://www.eclipse.org/org/documents/epl-v10.php 
 * 
 */

package com.mchange.v2.c3p0.impl;

import java.lang.reflect.Constructor;
import java.util.Map;
import java.util.Set;
import com.mchange.v2.c3p0.C3P0Registry;
import com.mchange.v2.naming.JavaBeanObjectFactory;

public class C3P0JavaBeanObjectFactory extends JavaBeanObjectFactory
{
    private final static Class[]  CTOR_ARG_TYPES = new Class[] { boolean.class };
    private final static Object[] CTOR_ARGS      = new Object[] { Boolean.FALSE };

    protected Object createBlankInstance(Class beanClass) throws Exception
    {
	if ( IdentityTokenized.class.isAssignableFrom( beanClass ) )
	    {
		Constructor ctor = beanClass.getConstructor( CTOR_ARG_TYPES );
		return ctor.newInstance( CTOR_ARGS );
	    }
	else
	    return super.createBlankInstance( beanClass );
    }

    protected Object findBean(Class beanClass, Map propertyMap, Set refProps ) throws Exception
    {
	Object out = super.findBean( beanClass, propertyMap, refProps );
	if (out instanceof IdentityTokenized)
	    out = C3P0Registry.reregister( (IdentityTokenized) out );
	//System.err.println("--> findBean()");
	//System.err.println(out);
	return out;
    }
}