/*
* Copyright 2010 Bizosys Technologies Limited
*
* Licensed to the Bizosys Technologies Limited (Bizosys) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The Bizosys 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 com.bizosys.hsearch.hbase;
/**
* Callback function during a update process.
* It helps in merging with already stored bytes in a locked environment.
* @author karan
*
*/
public interface IUpdatePipe {
/**
* Calls back after reading existing data
* @param family Existing Family
* @param name Existing column Qualifier
* @param existingB Existing value
* @return New column value as byte array
*/
byte[] process(byte[] family, byte[] name, byte[] existingB);
}