org.springframework.beans.factory.serviceloader

Class AbstractServiceLoaderBasedFactoryBean

java.lang.Object

org.springframework.beans.factory.config.AbstractFactoryBean

org.springframework.beans.factory.serviceloader.AbstractServiceLoaderBasedFactoryBean

All Implemented Interfaces:

Aware, BeanClassLoaderAware, BeanFactoryAware, DisposableBean, FactoryBean, InitializingBean

Direct Known Subclasses:

ServiceFactoryBean, ServiceListFactoryBean, ServiceLoaderFactoryBean

public abstract class AbstractServiceLoaderBasedFactoryBean
extends AbstractFactoryBean
implements BeanClassLoaderAware

Abstract base class for FactoryBeans operating on the JDK 1.6 ServiceLoader facility.

Since:

2.5

Author:

Juergen Hoeller

See Also:

ServiceLoader

Field Summary

Fields inherited from class org.springframework.beans.factory.config.AbstractFactoryBean

logger

Constructor Summary

Constructors

Constructor and Description
AbstractServiceLoaderBasedFactoryBean()

Method Summary

Methods

Modifier and Type	Method and Description
protected Object	createInstance() Delegates to getObjectToExpose(java.util.ServiceLoader).
protected abstract Object	getObjectToExpose(ServiceLoader serviceLoader) Determine the actual object to expose for the given ServiceLoader.
Class	getServiceType() Return the desired service type.
void	setBeanClassLoader(ClassLoader beanClassLoader) Callback that supplies the bean class loader to a bean instance.
void	setServiceType(Class serviceType) Specify the desired service type (typically the service's public API).

Methods inherited from class org.springframework.beans.factory.config.AbstractFactoryBean

afterPropertiesSet, destroy, destroyInstance, getBeanFactory, getBeanTypeConverter, getEarlySingletonInterfaces, getObject, getObjectType, isSingleton, setBeanFactory, setSingleton

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractServiceLoaderBasedFactoryBean

public AbstractServiceLoaderBasedFactoryBean()

Method Detail

setServiceType

public void setServiceType(Class serviceType)

Specify the desired service type (typically the service's public API).

getServiceType

public Class getServiceType()

Return the desired service type.

setBeanClassLoader

public void setBeanClassLoader(ClassLoader beanClassLoader)

Description copied from interface: BeanClassLoaderAware

Callback that supplies the bean class loader to a bean instance.

Invoked after the population of normal bean properties but before an initialization callback such as InitializingBean's InitializingBean.afterPropertiesSet() method or a custom init-method.

Specified by:

setBeanClassLoader in interface BeanClassLoaderAware

Overrides:

setBeanClassLoader in class AbstractFactoryBean

Parameters:

beanClassLoader - the owning class loader; may be null in which case a default ClassLoader must be used, for example the ClassLoader obtained via ClassUtils.getDefaultClassLoader()

createInstance

protected Object createInstance()

Delegates to getObjectToExpose(java.util.ServiceLoader).

Specified by:

createInstance in class AbstractFactoryBean

Returns:

the object to expose

See Also:

AbstractFactoryBean.getObject()

getObjectToExpose

protected abstract Object getObjectToExpose(ServiceLoader serviceLoader)

Determine the actual object to expose for the given ServiceLoader.

Left to concrete subclasses.

Parameters:

serviceLoader - the ServiceLoader for the configured service class

Returns:

the object to expose