类 LocalConnectionFactoryBean

  • 所有已实现的接口:
    FactoryBean<Object>, InitializingBean

    public class LocalConnectionFactoryBean
    extends Object
    implements FactoryBean<Object>, InitializingBean
    FactoryBean that creates a local JCA connection factory in "non-managed" mode (as defined by the Java Connector Architecture specification). This is a direct alternative to a JndiObjectFactoryBean definition that obtains a connection factory handle from a J2EE server's naming environment.

    The type of the connection factory is dependent on the actual connector: the connector can either expose its native API (such as a JDBC DataSource or a JMS ConnectionFactory) or follow the standard Common Client Interface (CCI), as defined by the JCA spec. The exposed interface in the CCI case is ConnectionFactory.

    In order to use this FactoryBean, you must specify the connector's "managedConnectionFactory" (usually configured as separate JavaBean), which will be used to create the actual connection factory reference as exposed to the application. Optionally, you can also specify a "connectionManager", in order to use a custom ConnectionManager instead of the connector's default.

    NOTE: In non-managed mode, a connector is not deployed on an application server, or more specificially not interacting with an application server. Consequently, it cannot use a J2EE server's system contracts: connection management, transaction management, and security management. A custom ConnectionManager implementation has to be used for applying those services in conjunction with a standalone transaction coordinator etc.

    The connector will use a local ConnectionManager (included in the connector) by default, which cannot participate in global transactions due to the lack of XA enlistment. You need to specify an XA-capable ConnectionManager in order to make the connector interact with an XA transaction coordinator. Alternatively, simply use the native local transaction facilities of the exposed API (e.g. CCI local transactions), or use a corresponding implementation of Spring's PlatformTransactionManager SPI (e.g. CciLocalTransactionManager) to drive local transactions.

    从以下版本开始:
    1.2
    作者:
    Juergen Hoeller
    另请参阅:
    setManagedConnectionFactory(javax.resource.spi.ManagedConnectionFactory), setConnectionManager(javax.resource.spi.ConnectionManager), ConnectionFactory, Connection.getLocalTransaction(), CciLocalTransactionManager
    • 方法详细资料

      • setManagedConnectionFactory

        public void setManagedConnectionFactory​(ManagedConnectionFactory managedConnectionFactory)
        Set the JCA ManagerConnectionFactory that should be used to create the desired connection factory.

        The ManagerConnectionFactory will usually be set up as separate bean (potentially as inner bean), populated with JavaBean properties: a ManagerConnectionFactory is encouraged to follow the JavaBean pattern by the JCA specification, analogous to a JDBC DataSource and a JDO PersistenceManagerFactory.

        Note that the ManagerConnectionFactory implementation might expect a reference to its JCA 1.5 ResourceAdapter, expressed through the ResourceAdapterAssociation interface. Simply inject the corresponding ResourceAdapter instance into its "resourceAdapter" bean property in this case, before passing the ManagerConnectionFactory into this LocalConnectionFactoryBean.

        另请参阅:
        ManagedConnectionFactory.createConnectionFactory()
      • getObject

        public Object getObject()
        从接口复制的说明: FactoryBean
        Return an instance (possibly shared or independent) of the object managed by this factory.

        As with a BeanFactory, this allows support for both the Singleton and Prototype design pattern.

        If this FactoryBean is not fully initialized yet at the time of the call (for example because it is involved in a circular reference), throw a corresponding FactoryBeanNotInitializedException.

        As of Spring 2.0, FactoryBeans are allowed to return null objects. The factory will consider this as normal value to be used; it will not throw a FactoryBeanNotInitializedException in this case anymore. FactoryBean implementations are encouraged to throw FactoryBeanNotInitializedException themselves now, as appropriate.

        指定者:
        getObject 在接口中 FactoryBean<Object>
        返回:
        an instance of the bean (can be null)
        另请参阅:
        FactoryBeanNotInitializedException
      • getObjectType

        public Class<?> getObjectType()
        从接口复制的说明: FactoryBean
        Return the type of object that this FactoryBean creates, or null if not known in advance.

        This allows one to check for specific types of beans without instantiating objects, for example on autowiring.

        In the case of implementations that are creating a singleton object, this method should try to avoid singleton creation as far as possible; it should rather estimate the type in advance. For prototypes, returning a meaningful type here is advisable too.

        This method can be called before this FactoryBean has been fully initialized. It must not rely on state created during initialization; of course, it can still use such state if available.

        NOTE: Autowiring will simply ignore FactoryBeans that return null here. Therefore it is highly recommended to implement this method properly, using the current state of the FactoryBean.

        指定者:
        getObjectType 在接口中 FactoryBean<Object>
        返回:
        the type of object that this FactoryBean creates, or null if not known at the time of the call
        另请参阅:
        ListableBeanFactory.getBeansOfType(java.lang.Class<T>)
      • isSingleton

        public boolean isSingleton()
        从接口复制的说明: FactoryBean
        Is the object managed by this factory a singleton? That is, will FactoryBean.getObject() always return the same object (a reference that can be cached)?

        NOTE: If a FactoryBean indicates to hold a singleton object, the object returned from getObject() might get cached by the owning BeanFactory. Hence, do not return true unless the FactoryBean always exposes the same reference.

        The singleton status of the FactoryBean itself will generally be provided by the owning BeanFactory; usually, it has to be defined as singleton there.

        NOTE: This method returning false does not necessarily indicate that returned objects are independent instances. An implementation of the extended SmartFactoryBean interface may explicitly indicate independent instances through its SmartFactoryBean.isPrototype() method. Plain FactoryBean implementations which do not implement this extended interface are simply assumed to always return independent instances if the isSingleton() implementation returns false.

        指定者:
        isSingleton 在接口中 FactoryBean<Object>
        返回:
        whether the exposed object is a singleton
        另请参阅:
        FactoryBean.getObject(), SmartFactoryBean.isPrototype()