hugegraph-store/hg-store-client/src/main/java/org/apache/hugegraph/store/HgStoreSession.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.hugegraph.store;

import org.apache.hugegraph.store.client.type.HgStoreClientException;

public interface HgStoreSession extends HgKvStore {

    void beginTx();

    /**
     * @throws IllegalStateException  when the tx hasn't been beginning.
     * @throws HgStoreClientException when failed to commit .
     */
    void commit();

    /**
     * @throws IllegalStateException  when the tx hasn't been beginning.
     * @throws HgStoreClientException when failed to rollback.
     */
    void rollback();

    boolean isTx();
}