public abstract class

AbstractFallbackTransactionAttributeSource

extends Object
implements TransactionAttributeSource
java.lang.Object
   ↳ org.springframework.transaction.interceptor.AbstractFallbackTransactionAttributeSource
Known Direct Subclasses

Class Overview

Abstract implementation of TransactionAttributeSource that caches attributes for methods and implements a fallback policy: 1. specific target method; 2. target class; 3. declaring method; 4. declaring class/interface.

Defaults to using the target class's transaction attribute if none is associated with the target method. Any transaction attribute associated with the target method completely overrides a class transaction attribute. If none found on the target class, the interface that the invoked method has been called through (in case of a JDK proxy) will be checked.

This implementation caches attributes by method after they are first used. If it is ever desirable to allow dynamic changing of transaction attributes (which is very unlikely), caching could be made configurable. Caching is desirable because of the cost of evaluating rollback rules.

Summary

Fields
protected final Log logger Logger available to subclasses.
Public Constructors
AbstractFallbackTransactionAttributeSource()
Public Methods
TransactionAttribute getTransactionAttribute(Method method, Class<?> targetClass)
Determine the transaction attribute for this method invocation.
Protected Methods
boolean allowPublicMethodsOnly()
Should only public methods be allowed to have transactional semantics?

The default implementation returns false.

abstract TransactionAttribute findTransactionAttribute(Method method)
Subclasses need to implement this to return the transaction attribute for the given method, if any.
abstract TransactionAttribute findTransactionAttribute(Class<?> clazz)
Subclasses need to implement this to return the transaction attribute for the given class, if any.
Object getCacheKey(Method method, Class<?> targetClass)
Determine a cache key for the given method and target class.
[Expand]
Inherited Methods
From class java.lang.Object
From interface org.springframework.transaction.interceptor.TransactionAttributeSource

Fields

protected final Log logger

Logger available to subclasses.

As this base class is not marked Serializable, the logger will be recreated after serialization - provided that the concrete subclass is Serializable.

Public Constructors

public AbstractFallbackTransactionAttributeSource ()

Public Methods

public TransactionAttribute getTransactionAttribute (Method method, Class<?> targetClass)

Determine the transaction attribute for this method invocation.

Defaults to the class's transaction attribute if no method attribute is found.

Parameters
method the method for the current invocation (never null)
targetClass the target class for this invocation (may be null)
Returns
  • TransactionAttribute for this method, or null if the method is not transactional

Protected Methods

protected boolean allowPublicMethodsOnly ()

Should only public methods be allowed to have transactional semantics?

The default implementation returns false.

protected abstract TransactionAttribute findTransactionAttribute (Method method)

Subclasses need to implement this to return the transaction attribute for the given method, if any.

Parameters
method the method to retrieve the attribute for
Returns
  • all transaction attribute associated with this method (or null if none)

protected abstract TransactionAttribute findTransactionAttribute (Class<?> clazz)

Subclasses need to implement this to return the transaction attribute for the given class, if any.

Parameters
clazz the class to retrieve the attribute for
Returns
  • all transaction attribute associated with this class (or null if none)

protected Object getCacheKey (Method method, Class<?> targetClass)

Determine a cache key for the given method and target class.

Must not produce same key for overloaded methods. Must produce same key for different instances of the same method.

Parameters
method the method (never null)
targetClass the target class (may be null)
Returns
  • the cache key (never null)