com.hazelcast.org.apache.calcite.plan.RelOptConnection 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.plan;
/**
* The planner's view of a connection to a database.
*
* A connection contains a {@link RelOptSchema}, via which the query planner
* can access {@link RelOptTable} objects.
*/
public interface RelOptConnection {
/**
* Returns the schema underlying this connection.
*/
RelOptSchema getRelOptSchema();
}