/*
 * Licensed 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.facebook.presto.spi.connector;

import com.facebook.presto.spi.ConnectorPlanOptimizer;

import java.util.Set;

public interface ConnectorPlanOptimizerProvider
{
    /**
     * The plan optimizers to be applied before having the notion of distribution.
     */
    Set<ConnectorPlanOptimizer> getLogicalPlanOptimizers();

    /**
     * The plan optimizers to be applied after having the notion of distribution.
     * The plan will be only executed on a single node.
     */
    Set<ConnectorPlanOptimizer> getPhysicalPlanOptimizers();
}
