/*
* JBoss, Home of Professional Open Source.
* Copyright 2011, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* 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. 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.wildfly.clustering.marshalling.jboss;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
/**
* Like {@link SimpleMarshalledValue}, but also serializes the underlying object's hash code,
* so that this object can still be hashed, even if deserialized, but not yet rehydrated.
* @author Paul Ferraro
*/
public class HashableMarshalledValue<T> extends SimpleMarshalledValue<T> {
private static final long serialVersionUID = -7576022002375288323L;
private transient int hashCode;
/**
* @param object
* @param context
* @throws IOException
*/
public HashableMarshalledValue(T object, MarshallingContext context) {
super(object, context);
this.hashCode = (object != null ) ? object.hashCode() : 0;
}
HashableMarshalledValue(byte[] bytes, int hashCode) {
super(bytes);
this.hashCode = hashCode;
}
@Override
public int hashCode() {
return this.hashCode;
}
@Override
public boolean equals(Object object) {
if (object instanceof HashableMarshalledValue) {
HashableMarshalledValue<?> value = (HashableMarshalledValue<?>) object;
// Testing hashCode equivalence is just an optimization
if (this.hashCode != value.hashCode) return false;
}
return super.equals(object);
}
private void writeObject(ObjectOutputStream out) throws IOException {
out.defaultWriteObject();
out.writeInt(this.hashCode);
}
private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
in.defaultReadObject();
this.hashCode = in.readInt();
}
}