org.springframework.aop.target
Class AbstractPrototypeTargetSource

java.lang.Object
  org.springframework.aop.target.AbstractPrototypeTargetSource

All Implemented Interfaces:

BeanFactoryAware, InitializingBean, TargetSource

Direct Known Subclasses:

AbstractPoolingTargetSource, PrototypeTargetSource, ThreadLocalTargetSource

public abstract class AbstractPrototypeTargetSource

extends java.lang.Object

implements TargetSource, BeanFactoryAware, InitializingBean

Base class for dynamic TargetSources that can create new prototype bean instances to support a pooling or new-instance-per-invocation strategy. Such TargetSources must run in a BeanFactory, as it needs to call the getBean() method to create a new prototype instance.

Version:

$Id: AbstractPrototypeTargetSource.java,v 1.5 2004/03/18 10:38:13 jhoeller Exp $

Author:

Rod Johnson

Field Summary

protected org.apache.commons.logging.Log

logger

Constructor Summary

AbstractPrototypeTargetSource()

Method Summary

void	afterPropertiesSet() Invoked by a BeanFactory after it has set all bean properties supplied (and satisfied BeanFactoryAware and ApplicationContextAware).
java.lang.String	getTargetBeanName() Return the name of the target bean in the factory.
java.lang.Class	getTargetClass()
boolean	isStatic()
protected java.lang.Object	newPrototypeInstance() Subclasses should use this method to create a new prototype instance.
void	setBeanFactory(BeanFactory beanFactory) Set the owning BeanFactory.
void	setTargetBeanName(java.lang.String targetBeanName) Set the name of the target bean in the factory.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.springframework.aop.TargetSource

getTarget, releaseTarget

Field Detail

logger

protected final org.apache.commons.logging.Log logger

Constructor Detail

AbstractPrototypeTargetSource

public AbstractPrototypeTargetSource()

Method Detail

setTargetBeanName

public void setTargetBeanName(java.lang.String targetBeanName)

Set the name of the target bean in the factory. This bean should be a prototype, or the same instance will always be obtained from the factory, resulting in the same behaviour as the InvokerInterceptor

Parameters:

targetBeanName - name of the target bean in the BeanFactory that owns this interceptor

getTargetBeanName

public java.lang.String getTargetBeanName()

Return the name of the target bean in the factory.

setBeanFactory

public void setBeanFactory(BeanFactory beanFactory)
                    throws BeansException

Set the owning BeanFactory. We need to save a reference so that we can use the getBean() method on every invocation.

Specified by:

setBeanFactory in interface BeanFactoryAware

Parameters:

beanFactory - owning BeanFactory (may not be null). The bean can immediately call methods on the factory.

Throws:

BeansException - in case of initialization errors

See Also:

BeanInitializationException

newPrototypeInstance

protected java.lang.Object newPrototypeInstance()

Subclasses should use this method to create a new prototype instance.

getTargetClass

public java.lang.Class getTargetClass()

Specified by:

getTargetClass in interface TargetSource

isStatic

public boolean isStatic()

Specified by:

isStatic in interface TargetSource

afterPropertiesSet

public void afterPropertiesSet()

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