C3P0NoEPConnectionProvider (onecode-database 1.0.5 API)

java.lang.Object
- com.ds.common.database.C3P0NoEPConnectionProvider

所有已实现的接口:

ConnectionProvider
```
public class C3P0NoEPConnectionProvider
extends Object
implements ConnectionProvider
```
Title: 常用代码打包

Description: Default connection provider, which uses an internal connection pool.

Copyright: Copyright (c) 2013

Company: www.justdos.net

版本:

2.0

作者:

wenzhang li

字段概要

字段
限定符和类型字段和说明

protected static com.ds.common.logging.Log log
Commons Logging instance.

字段
限定符和类型	字段和说明
`protected static com.ds.common.logging.Log`	`log` Commons Logging instance.

构造器概要

构造器
构造器和说明

C3P0NoEPConnectionProvider()

构造器
构造器和说明
`C3P0NoEPConnectionProvider()`

方法概要

所有方法实例方法具体方法
限定符和类型	方法和说明
`com.mchange.v2.c3p0.ComboPooledDataSource`	`createDataSource()`
`void`	`destroy()` Tells the connection provider to destroy itself.
`void`	`finalize()`
`Connection`	`getConnection()` Returns a database connection.
`double`	`getConnectionTimeout()` Returns the amount of time between connection recycles in days.
`String`	`getDriver()` Returns the JDBC driver classname used to make database connections.
`int`	`getMaxConnections()` Returns the maximum number of connections that the pool will use.
`int`	`getMinConnections()` Returns the minimum number of connections that the pool will use.
`String`	`getPassword()` Returns the password used to connect to the database.
`ProviderConfig`	`getProviderConfig()`
`String`	`getServerURL()` Returns the JDBC connection URL used to make database connections.
`String`	`getUsername()` Returns the username used to connect to the database.
`boolean`	`isMysqlUseUnicode()`
`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.

从类继承的方法 java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 字段详细资料
  - log
```
protected static com.ds.common.logging.Log log
```
    Commons Logging instance.
- 构造器详细资料
  - C3P0NoEPConnectionProvider
```
public C3P0NoEPConnectionProvider()
```
- 方法详细资料
  - isPooled
```
public boolean isPooled()
```
    从接口复制的说明: ConnectionProvider
    
    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.
    
    指定者:
    
    isPooled 在接口中 ConnectionProvider
    
    返回:
    
    true if the Connection objects returned by this provider are pooled.
  - getProviderConfig
```
public ProviderConfig getProviderConfig()
```
    指定者:
    
    getProviderConfig 在接口中 ConnectionProvider
  - createDataSource
```
public com.mchange.v2.c3p0.ComboPooledDataSource createDataSource()
```
  - getConnection
```
public Connection getConnection()
                         throws SQLException
```
    从接口复制的说明: ConnectionProvider
    
    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.
    
    指定者:
    
    getConnection 在接口中 ConnectionProvider
    
    返回:
    
    a Connection object.
    
    抛出:
    
    SQLException
  - start
```
public void start()
```
    从接口复制的说明: ConnectionProvider
    
    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.
    
    指定者:
    
    start 在接口中 ConnectionProvider
  - restart
```
public void restart()
```
    从接口复制的说明: ConnectionProvider
    
    This method should be called whenever properties have been changed so that the changes will take effect.
    
    指定者:
    
    restart 在接口中 ConnectionProvider
  - destroy
```
public void destroy()
```
    从接口复制的说明: ConnectionProvider
    
    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.
    
    指定者:
    
    destroy 在接口中 ConnectionProvider
  - finalize
```
public void finalize()
```
    覆盖:
    
    finalize 在类中 Object
  - getDriver
```
public String getDriver()
```
    Returns the JDBC driver classname used to make database connections. For example: com.mysql.jdbc.Driver
    
    返回:
    
    the JDBC driver classname.
  - getServerURL
```
public String getServerURL()
```
    Returns the JDBC connection URL used to make database connections.
    
    返回:
    
    the JDBC connection URL.
  - getUsername
```
public String getUsername()
```
    Returns the username used to connect to the database. In some cases, a username is not needed so this method will return null.
    
    返回:
    
    the username used to connect to the datbase.
  - getPassword
```
public String getPassword()
```
    Returns the password used to connect to the database. In some cases, a password is not needed so this method will return null.
    
    返回:
    
    the password used to connect to the database.
  - getMinConnections
```
public int getMinConnections()
```
    Returns the minimum number of connections that the pool will use. This should probably be at least three.
    
    返回:
    
    the minimum number of connections in the pool.
  - getMaxConnections
```
public int getMaxConnections()
```
    Returns the maximum number of connections that the pool will use. The actual number of connections in the pool will vary between this value and the minimum based on the current load.
    
    返回:
    
    the max possible number of connections in the pool.
  - getConnectionTimeout
```
public double getConnectionTimeout()
```
    Returns the amount of time between connection recycles in days. For example, a value of .5 would correspond to recycling the connections in the pool once every half day.
    
    返回:
    
    the amount of time in days between connection recycles.
  - isMysqlUseUnicode
```
public boolean isMysqlUseUnicode()
```

类 C3P0NoEPConnectionProvider

字段概要

构造器概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

log

构造器详细资料

C3P0NoEPConnectionProvider

方法详细资料

isPooled

getProviderConfig

createDataSource

getConnection

start

restart

destroy

finalize

getDriver

getServerURL

getUsername

getPassword

getMinConnections

getMaxConnections

getConnectionTimeout

isMysqlUseUnicode