Package org.hibernate.bytecode.internal.javassist

Source Code of org.hibernate.bytecode.internal.javassist.InstantiationOptimizerAdapter

/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2008-2013, 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.bytecode.internal.javassist;

import java.io.Serializable;

import org.hibernate.InstantiationException;
import org.hibernate.bytecode.spi.ReflectionOptimizer;

/**
* The {@link org.hibernate.bytecode.spi.ReflectionOptimizer.InstantiationOptimizer} implementation for Javassist
* which simply acts as an adapter to the {@link FastClass} class.
*
* @author Steve Ebersole
*/
public class InstantiationOptimizerAdapter implements ReflectionOptimizer.InstantiationOptimizer, Serializable {
  private final FastClass fastClass;

  /**
   * Constructs the InstantiationOptimizerAdapter
   *
   * @param fastClass The fast class for the class to be instantiated here.
   */
  public InstantiationOptimizerAdapter(FastClass fastClass) {
    this.fastClass = fastClass;
  }

  @Override
  public Object newInstance() {
    try {
      return fastClass.newInstance();
    }
    catch ( Exception e ) {
      throw new InstantiationException(
          "Could not instantiate entity with Javassist optimizer: ",
          fastClass.getJavaClass(),
          e
      );
    }
  }
}
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