com.ds.common.database

接口 ConnectionProvider

所有已知实现类:

C3P0ConnectionProvider, C3P0NoEPConnectionProvider, DefaultConnectionProvider, JNDIDataSourceProvider, MiniConnectionProvider

public interface ConnectionProvider

Title: 常用代码打包

Description: Abstract class that defines the connection provider framework. Other classes extend this abstract class to make connection to actual data sources.

It is expected that each subclass be a JavaBean, so that properties of the connection provider are exposed through bean introspection.

Copyright: Copyright (c) 2006

Company: www.justdos.net

版本:

1.0

作者:

wenzhang li

方法概要

限定符和类型	方法和说明
void	destroy() Tells the connection provider to destroy itself.
Connection	getConnection() Returns a database connection.
ProviderConfig	getProviderConfig()
boolean	isPooled() Returns true if this connection provider provides connections out of a connection pool.
void	restart() This method should be called whenever properties have been changed so that the changes will take effect.
void	start() Starts the connection provider.

方法详细资料

isPooled

boolean isPooled()

Returns true if this connection provider provides connections out of a connection pool. Implementing and using connection providers that are pooled is strongly recommended, as they greatly increase the speed of Jive.

返回:

true if the Connection objects returned by this provider are pooled.

getProviderConfig

ProviderConfig getProviderConfig()

getConnection

Connection getConnection()
                  throws SQLException

Returns a database connection. When a Jive component is done with a connection, it will call the close method of that connection. Therefore, connection pools with special release methods are not directly supported by the connection provider infrastructure. Instead, connections from those pools should be wrapped such that calling the close method on the wrapper class will release the connection from the pool.

返回:

a Connection object.

抛出:

SQLException

start

void start()

Starts the connection provider. For some connection providers, this will be a no-op. However, connection provider users should always call this method to make sure the connection provider is started.

restart

void restart()

This method should be called whenever properties have been changed so that the changes will take effect.

destroy

void destroy()

Tells the connection provider to destroy itself. For many connection providers, this will essentially result in a no-op. However, connection provider users should always call this method when changing from one connection provider to another to ensure that there are no dangling database connections.