The Spring Framework

org.springframework.context.annotation
Class AnnotationScopeMetadataResolver

java.lang.Object
  extended by org.springframework.context.annotation.AnnotationScopeMetadataResolver
All Implemented Interfaces:
ScopeMetadataResolver

public class AnnotationScopeMetadataResolver
extends Object
implements ScopeMetadataResolver

A ScopeMetadataResolver implementation that (by default) checks for the presence of the Scope annotation on the bean class.

The exact type of annotation that is checked for is configurable via the setScopeAnnotationType(Class) property.

Since:
2.5
Author:
Mark Fisher, Juergen Hoeller
See Also:
Scope

Constructor Summary
AnnotationScopeMetadataResolver()
          Create a new instance of the AnnotationScopeMetadataResolver class.
AnnotationScopeMetadataResolver(ScopedProxyMode scopedProxyMode)
          Create a new instance of the AnnotationScopeMetadataResolver class.
 
Method Summary
 ScopeMetadata resolveScopeMetadata(BeanDefinition definition)
          Resolve the ScopeMetadata appropriate to the supplied bean definition.
 void setScopeAnnotationType(Class<? extends Annotation> scopeAnnotationType)
          Set the type of annotation that is checked for by this AnnotationScopeMetadataResolver.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

AnnotationScopeMetadataResolver

public AnnotationScopeMetadataResolver()
Create a new instance of the AnnotationScopeMetadataResolver class.

See Also:
AnnotationScopeMetadataResolver(ScopedProxyMode), ScopedProxyMode.NO

AnnotationScopeMetadataResolver

public AnnotationScopeMetadataResolver(ScopedProxyMode scopedProxyMode)
Create a new instance of the AnnotationScopeMetadataResolver class.

Parameters:
scopedProxyMode - the desired scoped-proxy-mode; must not be null
Throws:
IllegalArgumentException - if the supplied scopedProxyMode is null.
Method Detail

setScopeAnnotationType

public void setScopeAnnotationType(Class<? extends Annotation> scopeAnnotationType)
Set the type of annotation that is checked for by this AnnotationScopeMetadataResolver.

Parameters:
scopeAnnotationType - the target annotation type; must not be null
Throws:
IllegalArgumentException - if the supplied scopeAnnotationType is null.

resolveScopeMetadata

public ScopeMetadata resolveScopeMetadata(BeanDefinition definition)
Description copied from interface: ScopeMetadataResolver
Resolve the ScopeMetadata appropriate to the supplied bean definition.

Implementations can of course use any strategy they like to determine the scope metadata, but some implementations that spring immediately to mind might be to use source level annotations present on the class of the supplied definition, or to use metadata present in the AttributeAccessor.attributeNames() of the supplied definition.

Specified by:
resolveScopeMetadata in interface ScopeMetadataResolver
Parameters:
definition - the target bean definition
Returns:
the relevant scope metadata; never null

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