/*
 * 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.phoenix.query;

import java.sql.SQLException;
import java.util.concurrent.ThreadPoolExecutor;
import org.apache.phoenix.memory.MemoryManager;
import org.apache.phoenix.optimize.QueryOptimizer;
import org.apache.phoenix.util.ReadOnlyProps;

/**
 * Class that delegates QueryService calls through to a parent QueryService.
 * @since 0.1
 */
public class DelegateQueryServices implements QueryServices {
  private final QueryServices parent;

  public DelegateQueryServices(QueryServices queryServices) {
    parent = queryServices;
  }

  public QueryServices getDelegate() {
    return parent;
  }

  @Override
  public ThreadPoolExecutor getExecutor() {
    return parent.getExecutor();
  }

  @Override
  public MemoryManager getMemoryManager() {
    return parent.getMemoryManager();
  }

  @Override
  public void close() throws SQLException {
    parent.close();
  }

  @Override
  public ReadOnlyProps getProps() {
    return parent.getProps();
  }

  @Override
  public QueryOptimizer getOptimizer() {
    return parent.getOptimizer();
  }
}
