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org.apache.tapestry.bean
Class BeanProvider  

java.lang.Object
  org.apache.tapestry.bean.BeanProvider

All Implemented Interfaces:

java.util.EventListener, org.apache.tapestry.IBeanProvider, org.apache.tapestry.event.PageDetachListener, org.apache.tapestry.event.PageRenderListener

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public class BeanProvider

extends java.lang.Object

implements org.apache.tapestry.IBeanProvider, org.apache.tapestry.event.PageDetachListener, org.apache.tapestry.event.PageRenderListener

Basic implementation of the org.apache.tapestry.IBeanProvider interface.

Since:

1.0.4

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Field Summary
static com.cortexeb.tools.clover.d	__CLOVER_42_0
private  java.util.Set	_beanNames           Set of bean names provided by this provider.
private  java.util.Map	_beans           Map of beans, keyed on name.
private  org.apache.tapestry.IComponent	_component           The component for which beans are being created and tracked.
private  boolean	_registeredForDetach           Indicates whether this instance has been registered with its page as a PageDetachListener.
private  boolean	_registeredForRender           Indicates whether this instance has been registered as a render listener with the page.
private  org.apache.hivemind.ClassResolver	_resolver           Used for instantiating classes.
private static org.apache.commons.logging.Log	LOG

 

Constructor Summary

BeanProvider(org.apache.tapestry.IComponent component)

 

Method Summary
boolean	canProvideBean(java.lang.String name)           Returns true if the provider can provide the named bean.
java.lang.Object	getBean(java.lang.String name)           Returns the JavaBean with the specified name.
java.util.Collection	getBeanNames()           Returns a collection of the names of any beans which may be provided.
org.apache.hivemind.ClassResolver	getClassResolver()           Returns a resource resolver.
org.apache.tapestry.IComponent	getComponent()           Returns the org.apache.tapestry.IComponent (which may be a org.apache.tapestry.IPage) for which this bean provider is providing beans.
private  java.lang.Object	instantiateBean(java.lang.String beanName, org.apache.tapestry.spec.IBeanSpecification spec)
void	pageBeginRender(org.apache.tapestry.event.PageEvent event)           Invoked before just before the page renders a response.
void	pageDetached(org.apache.tapestry.event.PageEvent event)           Removes all beans with the REQUEST lifecycle.
void	pageEndRender(org.apache.tapestry.event.PageEvent event)           Invoked after a successful render of the page.
private  void	removeBeans(org.apache.tapestry.spec.BeanLifecycle lifecycle)           Removes any beans with the specified lifecycle.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

__CLOVER_42_0

public static com.cortexeb.tools.clover.d __CLOVER_42_0

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LOG

private static final org.apache.commons.logging.Log LOG

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_registeredForDetach

private boolean _registeredForDetach

Indicates whether this instance has been registered with its page as a PageDetachListener. Registration only occurs the first time a bean with lifecycle REQUEST is instantiated.

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_registeredForRender

private boolean _registeredForRender

Indicates whether this instance has been registered as a render listener with the page.

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_component

private org.apache.tapestry.IComponent _component

The component for which beans are being created and tracked.

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_resolver

private org.apache.hivemind.ClassResolver _resolver

Used for instantiating classes.

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_beans

private java.util.Map _beans

Map of beans, keyed on name.

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_beanNames

private java.util.Set _beanNames

Set of bean names provided by this provider.

Since:

2.2

Constructor Detail

BeanProvider

public BeanProvider(org.apache.tapestry.IComponent component)

Method Detail

getBeanNames

public java.util.Collection getBeanNames()

Description copied from interface: org.apache.tapestry.IBeanProvider

Returns a collection of the names of any beans which may be provided.

Specified by:

getBeanNames in interface org.apache.tapestry.IBeanProvider

Since:

1.0.6

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getComponent

public org.apache.tapestry.IComponent getComponent()

Description copied from interface: org.apache.tapestry.IBeanProvider

Returns the org.apache.tapestry.IComponent (which may be a org.apache.tapestry.IPage) for which this bean provider is providing beans.

Specified by:

getComponent in interface org.apache.tapestry.IBeanProvider

Since:

1.0.5

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getBean

public java.lang.Object getBean(java.lang.String name)

Description copied from interface: org.apache.tapestry.IBeanProvider

Returns the JavaBean with the specified name. The bean is created as needed.

Specified by:

getBean in interface org.apache.tapestry.IBeanProvider

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instantiateBean

private java.lang.Object instantiateBean(java.lang.String beanName,
                                         org.apache.tapestry.spec.IBeanSpecification spec)

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pageDetached

public void pageDetached(org.apache.tapestry.event.PageEvent event)

Removes all beans with the REQUEST lifecycle. Beans with the PAGE lifecycle stick around, and beans with no lifecycle were never stored in the first place.

Specified by:

pageDetached in interface org.apache.tapestry.event.PageDetachListener

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removeBeans

private void removeBeans(org.apache.tapestry.spec.BeanLifecycle lifecycle)

Removes any beans with the specified lifecycle.

Since:

2.2

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getClassResolver

public org.apache.hivemind.ClassResolver getClassResolver()

Description copied from interface: org.apache.tapestry.IBeanProvider

Returns a resource resolver.

Specified by:

getClassResolver in interface org.apache.tapestry.IBeanProvider

Since:

1.0.8

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pageBeginRender

public void pageBeginRender(org.apache.tapestry.event.PageEvent event)

Description copied from interface: org.apache.tapestry.event.PageRenderListener

Invoked before just before the page renders a response. This provides listeners with a last chance to initialize themselves for the render. This initialization can include modifying peristent page properties.

Specified by:

pageBeginRender in interface org.apache.tapestry.event.PageRenderListener

Since:

2.2

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pageEndRender

public void pageEndRender(org.apache.tapestry.event.PageEvent event)

Description copied from interface: org.apache.tapestry.event.PageRenderListener

Invoked after a successful render of the page. Allows objects to release any resources they needed during the the render.

Specified by:

pageEndRender in interface org.apache.tapestry.event.PageRenderListener

Since:

2.2

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canProvideBean

public boolean canProvideBean(java.lang.String name)

Description copied from interface: org.apache.tapestry.IBeanProvider

Returns true if the provider can provide the named bean.

Specified by:

canProvideBean in interface org.apache.tapestry.IBeanProvider

Since:

2.2

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