/*
 *
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You 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.apache.flex.compiler.internal.caches;

/**
 * Key object for {@link ConcurrentCacheStoreBase}.  
 */
public abstract class CacheStoreKeyBase
{
    /**
     * Generate a string key based on concrete classes' fields.
     * @return key
     */
    public abstract String generateKey();
    
    @Override
    public String toString()
    {
        return generateKey();
    }
    
    @Override
    public boolean equals(Object o)
    {
        if(o instanceof CacheStoreKeyBase)
        {
            return this.generateKey().equals(((CacheStoreKeyBase)o).generateKey());
        }
        
        return false;
    }
    
    @Override
    public int hashCode()
    {
        return generateKey().hashCode();
    }
}