org.springframework.transaction.interceptor

Class AbstractFallbackTransactionAttributeSource

  • java.lang.Object
    • org.springframework.transaction.interceptor.AbstractFallbackTransactionAttributeSource
  • All Implemented Interfaces:
    TransactionAttributeSource
    Direct Known Subclasses:
    AnnotationTransactionAttributeSource


    public abstract class AbstractFallbackTransactionAttributeSource
    extends java.lang.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.

    Since:
    1.1
    Author:
    Rod Johnson, Juergen Hoeller
    • Field Detail

      • 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.

    • Constructor Detail

      • AbstractFallbackTransactionAttributeSource

        public AbstractFallbackTransactionAttributeSource()
    • Method Detail

      • getTransactionAttribute

        @Nullable
        public TransactionAttribute getTransactionAttribute(java.lang.reflect.Method method,
                                                                      @Nullable
                                                                      java.lang.Class<?> targetClass)
        Determine the transaction attribute for this method invocation.

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

        Specified by:
        getTransactionAttribute in interface TransactionAttributeSource
        Parameters:
        method - the method for the current invocation (never null)
        targetClass - the target class for this invocation (may be null)
        Returns:
        a TransactionAttribute for this method, or null if the method is not transactional
      • getCacheKey

        protected java.lang.Object getCacheKey(java.lang.reflect.Method method,
                                               @Nullable
                                               java.lang.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)
      • findTransactionAttribute

        @Nullable
        protected abstract TransactionAttribute findTransactionAttribute(java.lang.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
      • findTransactionAttribute

        @Nullable
        protected abstract TransactionAttribute findTransactionAttribute(java.lang.reflect.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
      • allowPublicMethodsOnly

        protected boolean allowPublicMethodsOnly()
        Should only public methods be allowed to have transactional semantics?

        The default implementation returns false.