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WebLogicMBeanServerFactoryBean (Spring Framework API 2.0) - Spring Framework 2.0.5 API 文档英文版

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org.springframework.jmx.support
Class WebLogicMBeanServerFactoryBean

java.lang.Object
  org.springframework.jmx.support.WebLogicMBeanServerFactoryBean

All Implemented Interfaces:

FactoryBean, InitializingBean

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public class WebLogicMBeanServerFactoryBean
extends Object
implements FactoryBean, InitializingBean

FactoryBean that obtains a specified WebLogic MBeanServer reference through WebLogic's proprietary Helper / MBeanHome API, which is available on WebLogic 6.1 and higher.

Exposes the MBeanServer for bean references. This FactoryBean is a direct alternative to MBeanServerFactoryBean, which uses standard JMX 1.2 API to access the platform's MBeanServer.

Note: There is also a WebLogicJndiMBeanServerFactoryBean for accessing the WebLogic MBeanServer instance through a WebLogic MBeanHome obtained via a JNDI lookup, typical a local one.

NOTE: This class is only intended for use with WebLogic up to 8.1. On WebLogic 9.x, simply obtain the MBeanServer directly from the JNDI location "java:comp/env/jmx/runtime", for example through the following configuration:

 <bean class="org.springframework.jndi.JndiObjectFactoryBean">
   <property name="jndiName" value="java:comp/env/jmx/runtime"/>
 </bean>

Since:

1.2

Author:

Rob Harrop, Juergen Hoeller

See Also:

weblogic.management.Helper#getMBeanHome(String, String, String, String), weblogic.management.MBeanHome#getMBeanServer(), MBeanServer, MBeanServerFactoryBean, WebLogicJndiMBeanServerFactoryBean

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Constructor Summary
WebLogicMBeanServerFactoryBean()

 

Method Summary
void	afterPropertiesSet()           Invoked by a BeanFactory after it has set all bean properties supplied (and satisfied BeanFactoryAware and ApplicationContextAware).
Object	getObject()           Return an instance (possibly shared or independent) of the object managed by this factory.
Class	getObjectType()           Return the type of object that this FactoryBean creates, or null if not known in advance.
boolean	isSingleton()           Is the object managed by this factory a singleton?
void	setPassword(String password)           Set the password to use for retrieving the WebLogic MBeanServer.
void	setServerName(String serverName)           Set the server name to use for retrieving the WebLogic MBeanServer.
void	setServerUrl(String serverUrl)           Set the server URL to use for retrieving the WebLogic MBeanServer.
void	setUsername(String username)           Set the username to use for retrieving the WebLogic MBeanServer.

 

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Constructor Detail

WebLogicMBeanServerFactoryBean

public WebLogicMBeanServerFactoryBean()

Method Detail

setUsername

public void setUsername(String username)

Set the username to use for retrieving the WebLogic MBeanServer. Default is "weblogic".

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setPassword

public void setPassword(String password)

Set the password to use for retrieving the WebLogic MBeanServer. Default is "weblogic".

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setServerUrl

public void setServerUrl(String serverUrl)

Set the server URL to use for retrieving the WebLogic MBeanServer. Default is "t3://localhost:7001".

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setServerName

public void setServerName(String serverName)

Set the server name to use for retrieving the WebLogic MBeanServer. Default is "server".

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afterPropertiesSet

public void afterPropertiesSet()
                        throws MBeanServerNotFoundException

Description copied from interface: InitializingBean

Invoked by a BeanFactory after it has set all bean properties supplied (and satisfied BeanFactoryAware and ApplicationContextAware).

This method allows the bean instance to perform initialization only possible when all bean properties have been set and to throw an exception in the event of misconfiguration.

Specified by:

afterPropertiesSet in interface InitializingBean

Throws:

MBeanServerNotFoundException

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getObject

public Object getObject()

Description copied from interface: FactoryBean

Return an instance (possibly shared or independent) of the object managed by this factory.

As with a BeanFactory, this allows support for both the Singleton and Prototype design pattern.

If this FactoryBean is not fully initialized yet at the time of the call (for example because it is involved in a circular reference), throw a corresponding FactoryBeanNotInitializedException.

As of Spring 2.0, FactoryBeans are allowed to return null objects. The factory will consider this as normal value to be used; it will not throw a FactoryBeanNotInitializedException in this case anymore. FactoryBean implementations are encouraged to throw FactoryBeanNotInitializedException themselves now, as appropriate.

Specified by:

getObject in interface FactoryBean

Returns:

an instance of the bean (can be null)

See Also:

FactoryBeanNotInitializedException

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getObjectType

public Class getObjectType()

Description copied from interface: FactoryBean

Return the type of object that this FactoryBean creates, or null if not known in advance.

This allows one to check for specific types of beans without instantiating objects, for example on autowiring.

In the case of implementations that are creating a singleton object, this method should try to avoid singleton creation as far as possible; it should rather estimate the type in advance. For prototypes, returning a meaningful type here is advisable too.

This method can be called before this FactoryBean has been fully initialized. It must not rely on state created during initialization; of course, it can still use such state if available.

NOTE: Autowiring will simply ignore FactoryBeans that return null here. Therefore it is highly recommended to implement this method properly, using the current state of the FactoryBean.

Specified by:

getObjectType in interface FactoryBean

Returns:

the type of object that this FactoryBean creates, or null if not known at the time of the call

See Also:

ListableBeanFactory.getBeansOfType(java.lang.Class)

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isSingleton

public boolean isSingleton()

Description copied from interface: FactoryBean

Is the object managed by this factory a singleton? That is, will FactoryBean.getObject() always return the same object (a reference that can be cached)?

NOTE: If a FactoryBean indicates to hold a singleton object, the object returned from getObject() might get cached by the owning BeanFactory. Hence, do not return true unless the FactoryBean always exposes the same reference.

The singleton status of the FactoryBean itself will generally be provided by the owning BeanFactory; usually, it has to be defined as singleton there.

NOTE: This method returning false does not necessarily indicate that returned objects are independent instances. An implementation of the extended SmartFactoryBean interface may explicitly indicate independent instances through its SmartFactoryBean.isPrototype() method. Plain FactoryBean implementations which do not implement this extended interface are simply assumed to always return independent instances if the isSingleton() implementation returns false.

Specified by:

isSingleton in interface FactoryBean

Returns:

if the exposed object is a singleton

See Also:

FactoryBean.getObject(), SmartFactoryBean.isPrototype()

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