/**
 * Copyright 2011 The Apache Software Foundation
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF 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.apache.hadoop.hbase.index.client;

import java.util.ArrayList;
import java.util.List;

import org.apache.hadoop.hbase.client.Scan;
import org.apache.hadoop.hbase.index.Constants;
import org.apache.hadoop.hbase.index.GroupingCondition;

/**
 * Can be used to group a set of {@link SingleIndexExpression} with AND/OR {@link GroupingCondition}
 * @see Scan#setAttribute(String, byte[])
 * @see Constants#INDEX_EXPRESSION
 * @see IndexUtils#toBytes(IndexExpression)
 */
public class MultiIndexExpression implements IndexExpression {

  private static final long serialVersionUID = 5322668904124942100L;

  private List<IndexExpression> indexExpressions = new ArrayList<IndexExpression>();

  private GroupingCondition groupingCondition;

  public MultiIndexExpression(GroupingCondition condition) {
    this.groupingCondition = condition;
  }

  public GroupingCondition getGroupingCondition() {
    return this.groupingCondition;
  }

  public void addIndexExpression(IndexExpression indexExpression) {
    this.indexExpressions.add(indexExpression);
  }

  public List<IndexExpression> getIndexExpressions() {
    return this.indexExpressions;
  }
}