net.hasor.db.datasource

Class ConnectionHolder

java.lang.Object

net.hasor.db.datasource.ConnectionHolder

All Implemented Interfaces:

ConnectionManager, SavepointManager

public class ConnectionHolder
extends Object
implements SavepointManager, ConnectionManager

Version:

: 2014-3-29

Author:

赵永春 (zyc@byshell.org)

Method Summary

Modifier and Type	Method and Description
void	cancelTransaction() 取消事务状态,设置为自动递交
Savepoint	createSavepoint() 使用一个全新的名称创建一个保存点。
Connection	getConnection() 获取数据库连接。
DataSource	getDataSource() 则表示当前数据库连接是否有被引用。
boolean	hasTransaction() 是否存在事务
boolean	isOpen() 则表示当前数据库连接是否被打开，被打开的连接一定有引用。
void	released() 减少引用计数,一个因为持有人已被释放。
void	releaseSavepoint(Savepoint savepoint) 释放某个事务的保存点
void	requested() 增加引用计数,一个因为持有人已被请求。
void	rollbackToSavepoint(Savepoint savepoint) 回滚事务到一个指定的保存点。
void	setTransaction() 设置事务状态
boolean	supportSavepoint() 返回 JDBC 驱动是否支持保存点。

Methods inherited from class java.lang.Object

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

Method Detail

requested

public void requested()

Description copied from interface: ConnectionManager

增加引用计数,一个因为持有人已被请求。

Specified by:

requested in interface ConnectionManager

released

public void released()
              throws SQLException

Description copied from interface: ConnectionManager

减少引用计数,一个因为持有人已被释放。

Specified by:

released in interface ConnectionManager

Throws:

SQLException

getConnection

public Connection getConnection()
                         throws SQLException

Description copied from interface: ConnectionManager

获取数据库连接。

Specified by:

getConnection in interface ConnectionManager

Throws:

SQLException

isOpen

public boolean isOpen()

Description copied from interface: ConnectionManager

则表示当前数据库连接是否被打开，被打开的连接一定有引用。

Specified by:

isOpen in interface ConnectionManager

getDataSource

public DataSource getDataSource()

则表示当前数据库连接是否有被引用。

hasTransaction

public boolean hasTransaction()
                       throws SQLException

是否存在事务

Throws:

SQLException

setTransaction

public void setTransaction()
                    throws SQLException

设置事务状态

Throws:

SQLException

cancelTransaction

public void cancelTransaction()
                       throws SQLException

取消事务状态,设置为自动递交

Throws:

SQLException

createSavepoint

public Savepoint createSavepoint()
                          throws SQLException

使用一个全新的名称创建一个保存点。

Specified by:

createSavepoint in interface SavepointManager

Throws:

SQLException

rollbackToSavepoint

public void rollbackToSavepoint(Savepoint savepoint)
                         throws SQLException

Description copied from interface: SavepointManager

回滚事务到一个指定的保存点。

Specified by:

rollbackToSavepoint in interface SavepointManager

Throws:

SQLException

releaseSavepoint

public void releaseSavepoint(Savepoint savepoint)
                      throws SQLException

Description copied from interface: SavepointManager

释放某个事务的保存点

Specified by:

releaseSavepoint in interface SavepointManager

Throws:

SQLException

supportSavepoint

public boolean supportSavepoint()
                         throws SQLException

Description copied from interface: SavepointManager

返回 JDBC 驱动是否支持保存点。

Specified by:

supportSavepoint in interface SavepointManager

Throws:

SQLException