类 AbstractFallbackTransactionAttributeSource
- java.lang.Object
- org.springframework.transaction.interceptor.AbstractFallbackTransactionAttributeSource
- 所有已实现的接口:
TransactionAttributeSource
public abstract class AbstractFallbackTransactionAttributeSource extends Object implements TransactionAttributeSource
Abstract implementation ofTransactionAttributeSource
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.
- 从以下版本开始:
- 1.1
- 作者:
- Rod Johnson, Juergen Hoeller
构造器概要
构造器 构造器 说明 AbstractFallbackTransactionAttributeSource()
方法概要
所有方法 实例方法 抽象方法 具体方法 修饰符和类型 方法 说明 protected boolean
allowPublicMethodsOnly()
Should only public methods be allowed to have transactional semantics?protected TransactionAttribute
computeTransactionAttribute(Method method, Class<?> targetClass)
Same signature asgetTransactionAttribute(java.lang.reflect.Method, java.lang.Class<?>)
, but doesn't cache the result.protected abstract TransactionAttribute
findTransactionAttribute(Class<?> clazz)
Subclasses need to implement this to return the transaction attribute for the given class, if any.protected abstract TransactionAttribute
findTransactionAttribute(Method method)
Subclasses need to implement this to return the transaction attribute for the given method, if any.protected Object
getCacheKey(Method method, Class<?> targetClass)
Determine a cache key for the given method and target class.TransactionAttribute
getTransactionAttribute(Method method, Class<?> targetClass)
Determine the transaction attribute for this method invocation.
构造器详细资料
AbstractFallbackTransactionAttributeSource
public AbstractFallbackTransactionAttributeSource()
方法详细资料
getTransactionAttribute
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.
- 指定者:
getTransactionAttribute
在接口中TransactionAttributeSource
- 参数:
method
- the method for the current invocation (nevernull
)targetClass
- the target class for this invocation (may benull
)- 返回:
- a TransactionAttribute for this method, or
null
if the method is not transactional
getCacheKey
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.
- 参数:
method
- the method (nevernull
)targetClass
- the target class (may benull
)- 返回:
- the cache key (never
null
)
computeTransactionAttribute
protected TransactionAttribute computeTransactionAttribute(Method method, Class<?> targetClass)
Same signature asgetTransactionAttribute(java.lang.reflect.Method, java.lang.Class<?>)
, but doesn't cache the result.getTransactionAttribute(java.lang.reflect.Method, java.lang.Class<?>)
is effectively a caching decorator for this method.As of 4.1.8, this method can be overridden.
- 从以下版本开始:
- 4.1.8
- 另请参阅:
getTransactionAttribute(java.lang.reflect.Method, java.lang.Class<?>)
findTransactionAttribute
protected abstract TransactionAttribute findTransactionAttribute(Class<?> clazz)
Subclasses need to implement this to return the transaction attribute for the given class, if any.- 参数:
clazz
- the class to retrieve the attribute for- 返回:
- all transaction attribute associated with this class, or
null
if none
findTransactionAttribute
protected abstract TransactionAttribute findTransactionAttribute(Method method)
Subclasses need to implement this to return the transaction attribute for the given method, if any.- 参数:
method
- the method to retrieve the attribute for- 返回:
- all transaction attribute associated with this method, or
null
if none
allowPublicMethodsOnly
protected boolean allowPublicMethodsOnly()
Should only public methods be allowed to have transactional semantics?The default implementation returns
false
.