/**
* 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.drill.exec.planner.sql;
import org.apache.calcite.sql.SqlOperator;
/**
* This interface is meant for the users of the wrappers, {@link DrillCalciteSqlOperatorWrapper},
* {@link DrillCalciteSqlFunctionWrapper} and {@link DrillCalciteSqlAggFunctionWrapper}, to access the wrapped Calcite
* {@link SqlOperator} without knowing exactly which wrapper it is.
*/
public interface DrillCalciteSqlWrapper {
/**
* Get the wrapped {@link SqlOperator}
*
* @return SqlOperator get the wrapped {@link SqlOperator}
*/
SqlOperator getOperator();
}