com.hazelcast.org.apache.calcite.server.DdlExecutor Maven / Gradle / Ivy
/*
* 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 com.hazelcast.org.apache.calcite.server;
import com.hazelcast.org.apache.calcite.jdbc.CalcitePrepare;
import com.hazelcast.org.apache.calcite.sql.SqlNode;
/**
* Executes DDL commands.
*/
public interface DdlExecutor {
/** DDL executor that cannot handle any DDL. */
DdlExecutor USELESS = (context, node) -> {
throw new UnsupportedOperationException("DDL not supported: " + node);
};
/** Executes a DDL statement.
*
* The statement identified itself as DDL in the
* {@link com.hazelcast.org.apache.calcite.jdbc.CalcitePrepare.ParseResult#kind} field. */
void executeDdl(CalcitePrepare.Context context, SqlNode node);
}