/*
 * Copyright 1999-2015 dangdang.com.
 * <p>
 * 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.
 * </p>
 */

package io.shardingjdbc.core.optimizer;

import io.shardingjdbc.core.routing.sharding.ShardingConditions;

/**
 * Optimize engine.
 *
 * @author maxiaoguang
 */
public interface OptimizeEngine {
    
    /**
     * Optimize sharding conditions.
     *
     * @return sharding conditions
     */
    ShardingConditions optimize();
}