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.util.List;
  import java.util.Map;
  
  import org.apache.asterix.common.functions.ExternalFunctionLanguage;
  import org.apache.asterix.common.metadata.Namespace;
  import org.apache.asterix.om.typecomputer.base.IResultTypeComputer;
  import org.apache.asterix.om.types.IAType;
  import org.apache.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression.FunctionKind;
  import org.apache.hyracks.algebricks.core.algebra.functions.IFunctionInfo;
  
  public interface IExternalFunctionInfo extends IFunctionInfo {
  
      FunctionKind getKind();
  
      List<IAType> getParameterTypes();
  
      IAType getReturnType();
  
      IResultTypeComputer getResultTypeComputer();
  
      ExternalFunctionLanguage getLanguage();
  
      Namespace getLibraryNamespace();
  
      String getLibraryName();
  
      List<String> getExternalIdentifier();
  
      Map<String, String> getResources();
  
      boolean getNullCall();
  }
  