cutthecrap.utils.striterators.Resolver Maven / Gradle / Ivy

/**
   Copyright (C) SYSTAP, LLC 2006-2012.  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 cutthecrap.utils.striterators;

import java.util.Iterator;

/**
 * Resolver
 *
 * Used with Resolverator by Striterator to resolve returned objects.
 *
 * Cannot be instantiated directly since an implementation of the resolve method is required.
 */

public abstract class Resolver extends FilterBase {
	
	public Resolver()	{}

	//-------------------------------------------------------------

	@Override
    final public Iterator filterOnce(Iterator src, Object context) {
        return new Resolverator(src, context, this);
	}

	//-------------------------------------------------------------

	protected abstract Object resolve(Object obj);
}