AbstractSerializableHolder.java example

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/*
 * JBoss, Home of Professional Open Source
 * Copyright 2010, Red Hat, Inc., and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.jboss.weld.serialization;

import java.io.ObjectStreamException;

public abstract class AbstractSerializableHolder<V> implements SerializableHolder<V> {

    private static final long serialVersionUID = -5217996922004189423L;

    private transient V value;

    public AbstractSerializableHolder() {
        this.value = initialize();
    }

    public AbstractSerializableHolder(V value) {
        this.value = value;
    }

    protected abstract V initialize();

    // Deserialization
    protected Object readResolve() throws ObjectStreamException {
        this.value = initialize();
        return this;
    }

    @Override
    public V get() {
        return value;
    }
}