net.sf.jguiraffe.di.impl.providers

Class SimpleBeanProvider

java.lang.Object

net.sf.jguiraffe.di.impl.providers.SimpleBeanProvider

All Implemented Interfaces:

BeanProvider

Direct Known Subclasses:

CollectionBeanProvider, ConstantBeanProvider, ConstructorBeanProvider, MapBeanProvider, MethodInvocationBeanProvider

public abstract class SimpleBeanProvider
extends Object
implements BeanProvider

A base class for simple bean providers.

A simple BeanProvider is a bean provider that only cares for creating new bean instances. It does not have further support for life-cycle features. Bean providers of this type are intended to collaborate with a life-cycle-aware bean provider. This provider uses the simple bean provider just for the creation and implements specific initialization functionality.

This base class provides implementations for some of the methods defined in the BeanProvider interface. Especially dummy implementations for the locking methods are available, which are typically not needed by simple providers.

Version:

$Id: SimpleBeanProvider.java 205 2012-01-29 18:29:57Z oheger $

Author:

Oliver Heger

Constructor Summary

Constructors

Constructor and Description
SimpleBeanProvider()

Method Summary

Modifier and Type	Method and Description
Set<Dependency>	getDependencies() Returns the dependencies for this bean provider.
Long	getLockID() Returns the lock ID of the current transaction.
boolean	isBeanAvailable() Returns a flag whether the managed bean is available.
void	setLockID(Long lid) Sets the lock ID of the current transaction.
void	shutdown(DependencyProvider depProvider) Shuts down this BeanProvider.

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sf.jguiraffe.di.BeanProvider

getBean, getBeanClass

Constructor Detail

SimpleBeanProvider

public SimpleBeanProvider()

Method Detail

getDependencies

public Set<Dependency> getDependencies()

Returns the dependencies for this bean provider. This implementation simply returns null. Simple providers often do not have any dependencies.

Specified by:

getDependencies in interface BeanProvider

Returns:

a set with the dependencies of this bean provider

See Also:

Dependency

getLockID

public Long getLockID()

Returns the lock ID of the current transaction. Simple bean providers do not require any lock handling. So this implementation always returns null.

Specified by:

getLockID in interface BeanProvider

Returns:

the lock ID of the current transaction

setLockID

public void setLockID(Long lid)

Sets the lock ID of the current transaction. This is just a dummy implementation; simple bean providers do not need any lock handling.

Specified by:

setLockID in interface BeanProvider

Parameters:

lid - the lock ID of the current transaction

See Also:

BeanProvider.getLockID()

isBeanAvailable

public boolean isBeanAvailable()

Returns a flag whether the managed bean is available. For simple bean providers this is always the case, so this implementation always returns true.

Specified by:

isBeanAvailable in interface BeanProvider

Returns:

a flag whether the managed bean is available

shutdown

public void shutdown(DependencyProvider depProvider)

Shuts down this BeanProvider. This implementation is just an empty dummy; a simple bean provider does not need any special shutdown handling.

Specified by:

shutdown in interface BeanProvider

Parameters:

depProvider - the DependencyProvider