cutthecrap.utils.striterators.Filter 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;

/**
 * Used with Filterator by Striterator to filter returned objects.
 */
public abstract class Filter extends FilterBase implements IFilterTest {

	/**
     * 
     */
    private static final long serialVersionUID = 7584586850408369853L;
    
	public Filter()	{}

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

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

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

    public abstract boolean isValid(Object obj);
}