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Transaction.java
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/
Transaction.java
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/*
* 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.lealone.transaction;
import org.lealone.type.DataType;
public interface Transaction {
/**
* The status of a closed transaction (committed or rolled back).
*/
public static final int STATUS_CLOSED = 0;
/**
* The status of an open transaction.
*/
public static final int STATUS_OPEN = 1;
/**
* The status of a prepared transaction.
*/
public static final int STATUS_PREPARED = 2;
/**
* The status of a transaction that is being committed, but possibly not
* yet finished. A transactions can go into this state when the store is
* closed while the transaction is committing. When opening a store,
* such transactions should be committed.
*/
public static final int STATUS_COMMITTING = 3;
String getName(); //用于2pc
void setName(String name); //用于2pc
void prepare(); //用于2pc
int getStatus();
void setStatus(int status);
//long getTransactionId();
//long getCommitTimestamp();
boolean isAutoCommit();
void setAutoCommit(boolean autoCommit);
void setLocal(boolean local);
void addLocalTransactionNames(String localTransactionNames);
String getLocalTransactionNames();
void setValidator(Validator validator);
void addParticipant(Participant participant);
<K, V> TransactionMap<K, V> openMap(String name);
<K, V> TransactionMap<K, V> openMap(String name, DataType keyType, DataType valueType);
void addSavepoint(String name);
long getSavepointId();
void commit();
void commit(String allLocalTransactionNames);
void rollback();
void rollbackToSavepoint(String name);
void rollbackToSavepoint(long savepointId);
interface Participant {
void addSavepoint(String name);
void rollbackToSavepoint(String name);
void commitTransaction(String localTransactionName);
void rollbackTransaction();
}
interface Validator {
boolean validateTransaction(String localTransactionName);
}
}