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.Objects;
  
  import org.apache.asterix.om.typecomputer.base.IResultTypeComputer;
  import org.apache.commons.lang3.mutable.Mutable;
  import org.apache.hyracks.algebricks.core.algebra.base.ILogicalExpression;
  import org.apache.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
  import org.apache.hyracks.algebricks.core.algebra.functions.IFunctionInfo;
  
  public abstract class FunctionInfo implements IFunctionInfo {
      private static final long serialVersionUID = 5460606629941107899L;
  
      private final FunctionIdentifier functionIdentifier;
      private final transient IResultTypeComputer typeComputer;
      private final boolean isFunctional;
  
      public FunctionInfo(FunctionIdentifier functionIdentifier, IResultTypeComputer typeComputer, boolean isFunctional) {
          this.functionIdentifier = Objects.requireNonNull(functionIdentifier);
          this.typeComputer = Objects.requireNonNull(typeComputer);
          this.isFunctional = isFunctional;
      }
  
      @Override
      public FunctionIdentifier getFunctionIdentifier() {
          return functionIdentifier;
      }
  
      @Override
      public boolean isFunctional() {
          return isFunctional;
      }
  
      public IResultTypeComputer getResultTypeComputer() {
          return typeComputer;
      }
  
      /**
       * @param args,
       *            the arguments.
       * @return a display string of the FunctionInfo.
       */
      @Override
      public String display(List<Mutable<ILogicalExpression>> args) {
          return FunctionDisplayUtil.display(this, args, input -> IFunctionInfo.super.display(input));
      }
  
      @Override
      public String toString() {
          return functionIdentifier.toString();
      }
  }
  