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* Copyright 2009 The Apache Software Foundation
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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package org.apache.hadoop.hbase.client.tableindexed;
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import org.apache.hadoop.io.Writable;
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* Interface for generating an index-row-key from a row in the base table.
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public interface IndexKeyGenerator extends Writable {
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/** Create an index key from a base row.
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* @param rowKey the row key of the base row
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* @param columns the columns in the base row
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* @return the row key in the indexed row.
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byte[] createIndexKey(byte[] rowKey, Map<byte[], byte[]> columns);