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/*
 * 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;

import com.hazelcast.org.apache.calcite.rel.type.RelDataTypeFactory;

import com.hazelcast.org.checkerframework.checker.nullness.qual.Nullable;

import java.util.List;

/**
 * A RelOptSchema is a set of {@link RelOptTable} objects.
 */
public interface RelOptSchema {
  //~ Methods ----------------------------------------------------------------

  /**
   * Retrieves a {@link RelOptTable} based upon a member access.
   *
   * 

For example, the Saffron expression salesSchema.emps * would be resolved using a call to salesSchema.getTableForMember(new * String[]{"emps" }).

* *

Note that name.length is only greater than 1 for queries originating * from JDBC.

* * @param names Qualified name */ @Nullable RelOptTable getTableForMember(List names); /** * Returns the {@link RelDataTypeFactory type factory} used to generate * types for this schema. */ RelDataTypeFactory getTypeFactory(); /** * Registers all of the rules supported by this schema. Only called by * {@link RelOptPlanner#registerSchema}. */ void registerRules(RelOptPlanner planner) throws Exception; }




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