/*
* This file is part of the Wayback archival access software
* (http://archive-access.sourceforge.net/projects/wayback/).
*
* Licensed to the Internet Archive (IA) by one or more individual
* contributors.
*
* The IA 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.archive.wayback.resourceindex.filters;
import org.archive.wayback.util.ObjectFilter;
/**
* SearchResultFitler that includes the first N records seen.
*
* @author brad
* @version $Date$, $Revision$
*/
public class WindowEndFilter<T> implements ObjectFilter<T> {
private int windowSize = 0;
private int numSeen = 0;
private int numReturned = 0;
/**
* @param windowSize int number of records to include
*/
public WindowEndFilter(int windowSize) {
this.windowSize = windowSize;
this.numSeen = 0;
}
public int getNumReturned() {
return numReturned;
}
public int getNumSeen() {
return numSeen;
}
/* (non-Javadoc)
* @see org.archive.wayback.util.ObjectFilter#filterObject(java.lang.Object)
*/
public int filterObject(T r) {
numSeen++;
if(numSeen <= windowSize) {
numReturned++;
return FILTER_INCLUDE;
}
return FILTER_EXCLUDE;
}
}