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AnnotationTransactionAttributeSource (Spring Framework API 2.0) - Spring Framework 2.0.5 API 文档英文版

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org.springframework.transaction.annotation
Class AnnotationTransactionAttributeSource

java.lang.Object
  org.springframework.transaction.interceptor.AbstractFallbackTransactionAttributeSource
      org.springframework.transaction.annotation.AnnotationTransactionAttributeSource

All Implemented Interfaces:

Serializable, TransactionAttributeSource

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public class AnnotationTransactionAttributeSource
extends AbstractFallbackTransactionAttributeSource
implements Serializable

Implementation of the TransactionAttributeSource interface for working with transaction metadata in JDK 1.5+ annotation format.

This class reads Spring's JDK 1.5+ Transactional annotation and exposes corresponding transaction attributes to Spring's transaction infrastructure. Can also be used as base class for a custom annotation-based TransactionAttributeSource.

This is a direct alternative to AttributesTransactionAttributeSource, which is able to read in source-level attributes via Commons Attributes.

Since:

1.2

Author:

Colin Sampaleanu, Juergen Hoeller

See Also:

Transactional, findTransactionAttribute(java.util.Collection), TransactionAspectSupport.setTransactionAttributeSource(org.springframework.transaction.interceptor.TransactionAttributeSource), TransactionProxyFactoryBean.setTransactionAttributeSource(org.springframework.transaction.interceptor.TransactionAttributeSource), AttributesTransactionAttributeSource, CommonsAttributes, Serialized Form

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Field Summary

 

Fields inherited from class org.springframework.transaction.interceptor.AbstractFallbackTransactionAttributeSource
logger

 

Constructor Summary
AnnotationTransactionAttributeSource()           Create a default AnnotationTransactionAttributeSource, supporting public methods that carry the Transactional annotation.
AnnotationTransactionAttributeSource(boolean publicMethodsOnly)           Create a custom AnnotationTransactionAttributeSource.

 

Method Summary
protected  boolean	allowPublicMethodsOnly()           By default, only public methods can be made transactional using Transactional.
boolean	equals(Object other)
protected  Collection	findAllAttributes(Class clazz)           Returns all JDK 1.5+ annotations found for the given class.
protected  Collection	findAllAttributes(Method method)           Returns all JDK 1.5+ annotations found for the given method.
protected  TransactionAttribute	findTransactionAttribute(Collection atts)           Return the transaction attribute, given this set of attributes attached to a method or class.
int	hashCode()

 

Methods inherited from class org.springframework.transaction.interceptor.AbstractFallbackTransactionAttributeSource
getCacheKey, getTransactionAttribute

 

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

 

Constructor Detail

AnnotationTransactionAttributeSource

public AnnotationTransactionAttributeSource()

Create a default AnnotationTransactionAttributeSource, supporting public methods that carry the Transactional annotation.

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AnnotationTransactionAttributeSource

public AnnotationTransactionAttributeSource(boolean publicMethodsOnly)

Create a custom AnnotationTransactionAttributeSource.

Parameters:

publicMethodsOnly - whether to support public methods that carry the Transactional annotation only (typically for use with proxy-based AOP), or protected/private methods as well (typically used with AspectJ class weaving)

Method Detail

findAllAttributes

protected Collection findAllAttributes(Method method)

Returns all JDK 1.5+ annotations found for the given method.

Specified by:

findAllAttributes in class AbstractFallbackTransactionAttributeSource

Parameters:

method - the method to retrieve attributes for

Returns:

all attributes associated with this method (may be null)

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findAllAttributes

protected Collection findAllAttributes(Class clazz)

Returns all JDK 1.5+ annotations found for the given class.

Specified by:

findAllAttributes in class AbstractFallbackTransactionAttributeSource

Parameters:

clazz - class to retrieve attributes for

Returns:

all attributes associated with this class (may be null)

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findTransactionAttribute

protected TransactionAttribute findTransactionAttribute(Collection atts)

Return the transaction attribute, given this set of attributes attached to a method or class. Overrides method from parent class.

This implementation converts Spring's Transactional annotation to the Spring metadata classes. Returns null if it's not transactional.

Can be overridden to support custom annotations that carry transaction metadata.

Overrides:

findTransactionAttribute in class AbstractFallbackTransactionAttributeSource

Parameters:

atts - attributes attached to a method or class. May be null, in which case a null TransactionAttribute will be returned.

Returns:

TransactionAttribute the configured transaction attribute, or null if none was found

See Also:

Transactional

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allowPublicMethodsOnly

protected boolean allowPublicMethodsOnly()

By default, only public methods can be made transactional using Transactional.

Overrides:

allowPublicMethodsOnly in class AbstractFallbackTransactionAttributeSource

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equals

public boolean equals(Object other)

Overrides:

equals in class Object

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hashCode

public int hashCode()

Overrides:

hashCode in class Object

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