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'databene commons' is an open source Java library by Volker Bergmann. It provides extensions to the Java core library by utility classes, abstract concepts and concrete implementations.

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/*
 * Copyright (C) 2004-2015 Volker Bergmann ([email protected]).
 * All rights reserved.
 *
 * 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.databene.commons.accessor;

import java.util.ArrayList;
import java.util.List;

import org.databene.commons.Accessor;

/**
 * Proxy of an accessor.
 * Created: 08.03.2006 15:44:51
 * @author Volker Bergmann
 * @param  the object type to access
 * @param  the type of the value to get from the object
 */
public abstract class AccessorProxy implements DependentAccessor {

    protected Accessor realAccessor;

    public AccessorProxy(Accessor realAccessor) {
        this.realAccessor = realAccessor;
    }

    @Override
	public V getValue(C item) {
        return realAccessor.getValue(item);
    }

    @Override
	@SuppressWarnings({ "unchecked", "rawtypes" })
    public List> getDependencies() {
        if (realAccessor instanceof DependentAccessor)
            return ((DependentAccessor)realAccessor).getDependencies();
        else
            return new ArrayList();
    }

}