content: /*
   * 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.asterix.om.functions;
  
  import java.io.Serializable;
  
  import org.apache.asterix.common.functions.FunctionDescriptorTag;
  import org.apache.hyracks.algebricks.common.exceptions.AlgebricksException;
  import org.apache.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
  import org.apache.hyracks.algebricks.runtime.base.IAggregateEvaluatorFactory;
  import org.apache.hyracks.algebricks.runtime.base.IRunningAggregateEvaluatorFactory;
  import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
  import org.apache.hyracks.algebricks.runtime.base.ISerializedAggregateEvaluatorFactory;
  import org.apache.hyracks.algebricks.runtime.base.IUnnestingEvaluatorFactory;
  import org.apache.hyracks.api.exceptions.SourceLocation;
  
  public interface IFunctionDescriptor extends Serializable {
  
      void setImmutableStates(Object... states);
  
      void setSourceLocation(SourceLocation sourceLoc);
  
      FunctionIdentifier getIdentifier();
  
      FunctionDescriptorTag getFunctionDescriptorTag();
  
      IScalarEvaluatorFactory createEvaluatorFactory(IScalarEvaluatorFactory[] args) throws AlgebricksException;
  
      IRunningAggregateEvaluatorFactory createRunningAggregateEvaluatorFactory(final IScalarEvaluatorFactory[] args)
              throws AlgebricksException;
  
      ISerializedAggregateEvaluatorFactory createSerializableAggregateEvaluatorFactory(
              final IScalarEvaluatorFactory[] args) throws AlgebricksException;
  
      IUnnestingEvaluatorFactory createUnnestingEvaluatorFactory(final IScalarEvaluatorFactory[] args)
              throws AlgebricksException;
  
      IAggregateEvaluatorFactory createAggregateEvaluatorFactory(final IScalarEvaluatorFactory[] args)
              throws AlgebricksException;
  
  }
  