java.lang.Object
- org.springframework.transaction.interceptor.AbstractFallbackTransactionAttributeSource

所有已实现的接口:
TransactionAttributeSource
直接已知子类:
AnnotationTransactionAttributeSource
```
public abstract class AbstractFallbackTransactionAttributeSource
extends Object
implements TransactionAttributeSource
```
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.
从以下版本开始:
1.1
作者:
Rod Johnson, Juergen Hoeller

字段概要
字段
修饰符和类型字段说明
protected Log logger
Logger available to subclasses.

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 as `getTransactionAttribute(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.

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

从接口继承的方法 org.springframework.transaction.interceptor.TransactionAttributeSource
isCandidateClass

- 字段详细资料
  - logger
```
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.
- 构造器详细资料
  - AbstractFallbackTransactionAttributeSource
```
public AbstractFallbackTransactionAttributeSource()
```
- 方法详细资料
  - getTransactionAttribute
```
@Nullable
public TransactionAttribute getTransactionAttribute(Method method,
                                                    @Nullable
                                                    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 (never null)
    targetClass - the target class for this invocation (may be null)
    返回:
    a TransactionAttribute for this method, or null if the method is not transactional
  - getCacheKey
```
protected Object getCacheKey(Method method,
                             @Nullable
                             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 (never null)
    targetClass - the target class (may be null)
    返回:
    the cache key (never null)
  - computeTransactionAttribute
```
@Nullable
protected TransactionAttribute computeTransactionAttribute(Method method,
                                                           @Nullable
                                                           Class<?> targetClass)
```
    Same signature as getTransactionAttribute(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
```
@Nullable
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
```
@Nullable
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.

类 AbstractFallbackTransactionAttributeSource

字段概要

构造器概要

方法概要

从类继承的方法 java.lang.Object

从接口继承的方法 org.springframework.transaction.interceptor.TransactionAttributeSource

字段详细资料

logger

构造器详细资料

AbstractFallbackTransactionAttributeSource

方法详细资料

getTransactionAttribute

getCacheKey

computeTransactionAttribute

findTransactionAttribute

findTransactionAttribute

allowPublicMethodsOnly