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.calcite.sql;
  
  import org.apache.calcite.sql.type.SqlOperandTypeChecker;
  import org.apache.calcite.sql.type.SqlOperandTypeInference;
  import org.apache.calcite.sql.type.SqlReturnTypeInference;
  
  import org.checkerframework.checker.nullness.qual.Nullable;
  
  /**
   * SqlFunctionalOperator is a base class for special operators which use
   * functional syntax.
   */
  public class SqlFunctionalOperator extends SqlSpecialOperator {
    //~ Constructors -----------------------------------------------------------
  
    public SqlFunctionalOperator(
        String name,
        SqlKind kind,
        int pred,
        boolean isLeftAssoc,
        @Nullable SqlReturnTypeInference returnTypeInference,
        @Nullable SqlOperandTypeInference operandTypeInference,
        @Nullable SqlOperandTypeChecker operandTypeChecker) {
      super(
          name,
          kind,
          pred,
          isLeftAssoc,
          returnTypeInference,
          operandTypeInference,
          operandTypeChecker);
    }
  
    //~ Methods ----------------------------------------------------------------
  
    @Override public void unparse(
        SqlWriter writer,
        SqlCall call,
        int leftPrec,
        int rightPrec) {
      SqlUtil.unparseFunctionSyntax(this, writer, call, false);
    }
  }
  