io.shardingsphere.core.merger.MergeEngine Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of sharding-core Show documentation

There is a newer version: 3.1.0

/*
 * Copyright 2016-2018 shardingsphere.io.
 * 
 * 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 io.shardingsphere.core.merger;

import java.sql.SQLException;

/**
 * Result set merge engine.
 *
 * @author zhangliang
 */
public interface MergeEngine {
    
    /**
     * Merge result sets.
     *
     * @return merged result set.
     * @throws SQLException SQL exception
     */
    MergedResult merge() throws SQLException;
}