com.sh.pool.jdbc

类 ConnectionPool

java.lang.Object

com.sh.pool.jdbc.ConnectionPool

所有已实现的接口:

TimerListener

public class ConnectionPool
extends java.lang.Object
implements TimerListener

构造器概要

构造器

构造器和说明
ConnectionPool()

方法概要

限定符和类型	方法和说明
void	close(java.sql.Connection con) Places the connection back into the connection pool, or closes the connection if the maximum use count has been reached
void	destroy() Destroys the pool and it's contents.
java.sql.Connection	getConnection() Gets an available JDBC Connection.
boolean	initialize() Initializes the ConnectionPool object using 'ConnectionPool.cfg' as the configuration file
boolean	initialize(java.util.Properties poolProperties)
boolean	initialize(java.lang.String config) Initializes the ConnectionPool object with the specified configuration file
boolean	initialize(java.lang.String config, java.lang.String sector)
void	printPool() Prints the contents of the connection pool to the standard output device
void	TimerEvent(java.lang.Object object) Called by the timer each time a clock cycle expires.

从类继承的方法 java.lang.Object

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

构造器详细资料

ConnectionPool

public ConnectionPool()

方法详细资料

initialize

public boolean initialize()
                   throws java.lang.Exception

Initializes the ConnectionPool object using 'ConnectionPool.cfg' as the configuration file

返回:

true if the ConnectionPool was initialized properly

抛出:

java.lang.Exception - Exception

initialize

public boolean initialize(java.lang.String config)
                   throws java.lang.Exception

Initializes the ConnectionPool object with the specified configuration file

参数:

config - Configuration file name

返回:

true if the ConnectionPool was initialized properly

抛出:

java.lang.Exception - Exception

initialize

public boolean initialize(java.lang.String config,
                          java.lang.String sector)
                   throws java.lang.Exception

抛出:

java.lang.Exception

initialize

public boolean initialize(java.util.Properties poolProperties)
                   throws java.lang.Exception

抛出:

java.lang.Exception

destroy

public void destroy()

Destroys the pool and it's contents. Closes any open JDBC connections and frees all resources

getConnection

public java.sql.Connection getConnection()

Gets an available JDBC Connection. Connections will be created if necessary, up to the maximum number of connections as specified in the configuration file.

返回:

JDBC Connection, or null if the maximum number of connections has been exceeded

close

public void close(java.sql.Connection con)

Places the connection back into the connection pool, or closes the connection if the maximum use count has been reached

参数:

con - Connection object to close

printPool

public void printPool()

Prints the contents of the connection pool to the standard output device

TimerEvent

public void TimerEvent(java.lang.Object object)

Called by the timer each time a clock cycle expires. This gives us the opportunity to timeout connections

指定者:

TimerEvent 在接口中 TimerListener

参数:

object - Object