/*
  *
  *  *  Copyright 2014 Orient Technologies LTD (info(at)orientechnologies.com)
  *  *
  *  *  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.
  *  *
  *  * For more information: http://www.orientechnologies.com
  *
  */
package com.orientechnologies.orient.core.sql.functions.coll;

import com.orientechnologies.orient.core.sql.functions.OSQLFunctionConfigurableAbstract;

/**
 * Abstract class for multi-value based function implementations.
 *
 * @author Luca Garulli (l.garulli--at--orientechnologies.com)
 *
 */
public abstract class OSQLFunctionMultiValueAbstract<T> extends OSQLFunctionConfigurableAbstract {

  protected T context;

  public OSQLFunctionMultiValueAbstract(final String iName, final int iMinParams, final int iMaxParams) {
    super(iName, iMinParams, iMaxParams);
  }

  @Override
  public boolean aggregateResults() {
    return configuredParameters.length == 1;
  }

  @Override
  public T getResult() {
    return context;
  }

  @Override
  public boolean shouldMergeDistributedResult() {
    return true;
  }
}