ConstantHashFunction.java

/*
 * Copyright 2008-2009 LinkedIn, Inc
 * 
 * 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 voldemort.utils;

/**
 * A hash function that always hashes everything to the same value. Useful for
 * testing purposes.
 * 
 * 
 */
public class ConstantHashFunction implements HashFunction {

    private final int hashCode;

    public ConstantHashFunction(int hashCode) {
        this.hashCode = hashCode;
    }

    public int hash(byte[] key) {
        return hashCode;
    }

}