Transaction.java

/* Copyright 2013 The jeo project. All rights reserved.
 *
 * 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.jeo.data;

import java.io.IOException;

/**
 * Transaction object.
 * 
 * @author Justin Deoliveira, OpenGeo
 */
public interface Transaction {

    /**
     * Null transaction object.
     */
    Transaction NULL = new Transaction() {
        @Override
        public void rollback() throws IOException {
        }
        @Override
        public void commit() throws IOException {
        }
    };

    /**
     * Commits the transaction.
     */
    void commit() throws IOException;

    /**
     * Rolls back the transaction.
     */
    void rollback() throws IOException;
}