Package org.springframework.aop.target
Class AbstractPrototypeBasedTargetSource
- java.lang.Object
- org.springframework.aop.target.AbstractBeanFactoryBasedTargetSource
- org.springframework.aop.target.AbstractPrototypeBasedTargetSource
- All Implemented Interfaces:
Serializable,TargetClassAware,TargetSource,Aware,BeanFactoryAware
- Direct Known Subclasses:
AbstractPoolingTargetSource,PrototypeTargetSource,ThreadLocalTargetSource
public abstract class AbstractPrototypeBasedTargetSource extends AbstractBeanFactoryBasedTargetSource
Base class for dynamicTargetSourceimplementations that 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 thegetBeanmethod to create a new prototype instance. Therefore, this base class extendsAbstractBeanFactoryBasedTargetSource.- Author:
- Rod Johnson, Juergen Hoeller
- See Also:
BeanFactory.getBean(java.lang.String),PrototypeTargetSource,ThreadLocalTargetSource,CommonsPool2TargetSource, Serialized Form
Field Summary
Fields inherited from class org.springframework.aop.target.AbstractBeanFactoryBasedTargetSource
logger
Constructor Summary
Constructors Constructor Description AbstractPrototypeBasedTargetSource()
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected voiddestroyPrototypeInstance(Object target)Subclasses should call this method to destroy an obsolete prototype instance.protected ObjectnewPrototypeInstance()Subclasses should call this method to create a new prototype instance.voidsetBeanFactory(BeanFactory beanFactory)Set the owning BeanFactory.protected ObjectwriteReplace()Replaces this object with a SingletonTargetSource on serialization.Methods inherited from class org.springframework.aop.target.AbstractBeanFactoryBasedTargetSource
copyFrom, equals, getBeanFactory, getTargetBeanName, getTargetClass, hashCode, isStatic, releaseTarget, setTargetBeanName, setTargetClass, toString
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
Methods inherited from interface org.springframework.aop.TargetSource
getTarget
Constructor Detail
AbstractPrototypeBasedTargetSource
public AbstractPrototypeBasedTargetSource()
Method Detail
setBeanFactory
public void setBeanFactory(BeanFactory beanFactory) throws BeansException
Description copied from class:AbstractBeanFactoryBasedTargetSourceSet the owning BeanFactory. We need to save a reference so that we can use thegetBeanmethod on every invocation.- Specified by:
setBeanFactoryin interfaceBeanFactoryAware- Overrides:
setBeanFactoryin classAbstractBeanFactoryBasedTargetSource- Parameters:
beanFactory- owning BeanFactory (nevernull). The bean can immediately call methods on the factory.- Throws:
BeansException- in case of initialization errors- See Also:
BeanInitializationException
newPrototypeInstance
protected Object newPrototypeInstance() throws BeansException
Subclasses should call this method to create a new prototype instance.- Throws:
BeansException- if bean creation failed
destroyPrototypeInstance
protected void destroyPrototypeInstance(Object target)
Subclasses should call this method to destroy an obsolete prototype instance.- Parameters:
target- the bean instance to destroy
writeReplace
protected Object writeReplace() throws ObjectStreamException
Replaces this object with a SingletonTargetSource on serialization. Protected as otherwise it won't be invoked for subclasses. (ThewriteReplace()method must be visible to the class being serialized.)With this implementation of this method, there is no need to mark non-serializable fields in this class or subclasses as transient.
- Throws:
ObjectStreamException