io.seata.rm.datasource.undo

类 AbstractUndoLogManager

java.lang.Object

io.seata.rm.datasource.undo.AbstractUndoLogManager

所有已实现的接口:

UndoLogManager

直接已知子类:

MySQLUndoLogManager, OracleUndoLogManager, PostgresqlUndoLogManager

public abstract class AbstractUndoLogManager
extends Object
implements UndoLogManager

嵌套类概要

嵌套类

限定符和类型	类和说明
protected static class	AbstractUndoLogManager.State

字段概要

字段

限定符和类型	字段和说明
protected static String	DELETE_UNDO_LOG_SQL
protected static boolean	ROLLBACK_INFO_COMPRESS_ENABLE
protected static long	ROLLBACK_INFO_COMPRESS_THRESHOLD
protected static CompressorType	ROLLBACK_INFO_COMPRESS_TYPE
protected static String	SELECT_UNDO_LOG_SQL
protected static String	UNDO_LOG_TABLE_NAME

构造器概要

构造器

构造器和说明
AbstractUndoLogManager()

方法概要

限定符和类型	方法和说明
protected static void	appendInParam(int size, StringBuilder sqlBuilder)
void	batchDeleteUndoLog(Set<String> xids, Set<Long> branchIds, Connection conn) batch Delete undo log.
protected String	buildContext(String serializer, CompressorType compressorType)
protected static boolean	canUndo(int state)
void	deleteUndoLog(String xid, long branchId, Connection conn) Delete undo log.
void	flushUndoLogs(ConnectionProxy cp) Flush undo logs.
protected String	getCheckUndoLogTableExistSql()
static String	getCurrentSerializer()
protected byte[]	getRollbackInfo(ResultSet rs) RollbackInfo to bytes
boolean	hasUndoLogTable(Connection conn) does this resource have undolog table?
protected abstract void	insertUndoLogWithGlobalFinished(String xid, long branchId, UndoLogParser undoLogParser, Connection conn) insert uodo log when global finished
protected abstract void	insertUndoLogWithNormal(String xid, long branchId, String rollbackCtx, byte[] undoLogContent, Connection conn) insert uodo log when normal
protected boolean	needCompress(byte[] undoLogContent) if the undoLogContent is big enough to be compress
protected Map<String,String>	parseContext(String data)
static void	removeCurrentSerializer()
static void	setCurrentSerializer(String serializer)
protected static String	toBatchDeleteUndoLogSql(int xidSize, int branchIdSize)
void	undo(DataSourceProxy dataSourceProxy, String xid, long branchId) Undo.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

从接口继承的方法 io.seata.rm.datasource.undo.UndoLogManager

deleteUndoLogByLogCreated

字段详细资料

UNDO_LOG_TABLE_NAME

protected static final String UNDO_LOG_TABLE_NAME

SELECT_UNDO_LOG_SQL

protected static final String SELECT_UNDO_LOG_SQL

DELETE_UNDO_LOG_SQL

protected static final String DELETE_UNDO_LOG_SQL

ROLLBACK_INFO_COMPRESS_ENABLE

protected static final boolean ROLLBACK_INFO_COMPRESS_ENABLE

ROLLBACK_INFO_COMPRESS_TYPE

protected static final CompressorType ROLLBACK_INFO_COMPRESS_TYPE

ROLLBACK_INFO_COMPRESS_THRESHOLD

protected static final long ROLLBACK_INFO_COMPRESS_THRESHOLD

构造器详细资料

AbstractUndoLogManager

public AbstractUndoLogManager()

方法详细资料

getCurrentSerializer

public static String getCurrentSerializer()

setCurrentSerializer

public static void setCurrentSerializer(String serializer)

removeCurrentSerializer

public static void removeCurrentSerializer()

deleteUndoLog

public void deleteUndoLog(String xid,
                          long branchId,
                          Connection conn)
                   throws SQLException

Delete undo log.

指定者:

deleteUndoLog 在接口中 UndoLogManager

参数:

xid - the xid

branchId - the branch id

conn - the conn

抛出:

SQLException - the sql exception

batchDeleteUndoLog

public void batchDeleteUndoLog(Set<String> xids,
                               Set<Long> branchIds,
                               Connection conn)
                        throws SQLException

batch Delete undo log.

指定者:

batchDeleteUndoLog 在接口中 UndoLogManager

参数:

xids - xid

branchIds - branch Id

conn - connection

抛出:

SQLException - the sql exception

toBatchDeleteUndoLogSql

protected static String toBatchDeleteUndoLogSql(int xidSize,
                                                int branchIdSize)

appendInParam

protected static void appendInParam(int size,
                                    StringBuilder sqlBuilder)

canUndo

protected static boolean canUndo(int state)

buildContext

protected String buildContext(String serializer,
                              CompressorType compressorType)

parseContext

protected Map<String,String> parseContext(String data)

flushUndoLogs

public void flushUndoLogs(ConnectionProxy cp)
                   throws SQLException

Flush undo logs.

指定者:

flushUndoLogs 在接口中 UndoLogManager

参数:

cp - the cp

抛出:

SQLException - the sql exception

undo

public void undo(DataSourceProxy dataSourceProxy,
                 String xid,
                 long branchId)
          throws TransactionException

Undo.

指定者:

undo 在接口中 UndoLogManager

参数:

dataSourceProxy - the data source proxy

xid - the xid

branchId - the branch id

抛出:

TransactionException - the transaction exception

insertUndoLogWithGlobalFinished

protected abstract void insertUndoLogWithGlobalFinished(String xid,
                                                        long branchId,
                                                        UndoLogParser undoLogParser,
                                                        Connection conn)
                                                 throws SQLException

insert uodo log when global finished

参数:

xid - the xid

branchId - the branchId

undoLogParser - the undoLogParse

conn - sql connection

抛出:

SQLException - SQLException

insertUndoLogWithNormal

protected abstract void insertUndoLogWithNormal(String xid,
                                                long branchId,
                                                String rollbackCtx,
                                                byte[] undoLogContent,
                                                Connection conn)
                                         throws SQLException

insert uodo log when normal

参数:

xid - the xid

branchId - the branchId

rollbackCtx - the rollbackContext

undoLogContent - the undoLogContent

conn - sql connection

抛出:

SQLException - SQLException

getRollbackInfo

protected byte[] getRollbackInfo(ResultSet rs)
                          throws SQLException

RollbackInfo to bytes

参数:

rs -

返回:

抛出:

SQLException - SQLException

needCompress

protected boolean needCompress(byte[] undoLogContent)

if the undoLogContent is big enough to be compress

参数:

undoLogContent - undoLogContent

返回:

boolean

hasUndoLogTable

public boolean hasUndoLogTable(Connection conn)

从接口复制的说明: UndoLogManager

does this resource have undolog table?(some may not have, if they don't use AT mode at all)

指定者:

hasUndoLogTable 在接口中 UndoLogManager

参数:

conn - connection of the resource

返回:

whether undolog table exist or not

getCheckUndoLogTableExistSql

protected String getCheckUndoLogTableExistSql()