Query.java

/**
 * 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.horizondb.db;


import java.io.IOException;

/**
 * A user query.
 * 
 * @author Benjamin
 *
 */
public interface Query {

    /**
     * Executes this query.
     * 
     * @param context the query context.
     * @return the response.
     * @throws HorizonDBException if an error occur while performing the operation
     * @throws IOException if an I/O problem occurs while performing the operation
     */
    Object execute(QueryContext context) throws IOException, HorizonDBException;
}