类 JndiObjectFactoryBean

构造器详细资料

• JndiObjectFactoryBean

  public JndiObjectFactoryBean()

方法详细资料

• setProxyInterface

  public void setProxyInterface​(Class<?> proxyInterface)

  Specify the proxy interface to use for the JNDI object.

  Typically used in conjunction with "lookupOnStartup"=false and/or "cache"=false. Needs to be specified because the actual JNDI object type is not known in advance in case of a lazy lookup.

  另请参阅:

  setProxyInterfaces(java.lang.Class<?>...), setLookupOnStartup(boolean), setCache(boolean)

• setProxyInterfaces

  public void setProxyInterfaces​(Class<?>... proxyInterfaces)

  Specify multiple proxy interfaces to use for the JNDI object.

  Typically used in conjunction with "lookupOnStartup"=false and/or "cache"=false. Note that proxy interfaces will be autodetected from a specified "expectedType", if necessary.

  另请参阅:

  JndiObjectLocator.setExpectedType(java.lang.Class<?>), setLookupOnStartup(boolean), setCache(boolean)

• setLookupOnStartup

  public void setLookupOnStartup​(boolean lookupOnStartup)

  Set whether to look up the JNDI object on startup. Default is "true".

  Can be turned off to allow for late availability of the JNDI object. In this case, the JNDI object will be fetched on first access.

  For a lazy lookup, a proxy interface needs to be specified.

  另请参阅:

  setProxyInterface(java.lang.Class<?>), setCache(boolean)

• setCache

  public void setCache​(boolean cache)

  Set whether to cache the JNDI object once it has been located. Default is "true".

  Can be turned off to allow for hot redeployment of JNDI objects. In this case, the JNDI object will be fetched for each invocation.

  For hot redeployment, a proxy interface needs to be specified.

  另请参阅:

  setProxyInterface(java.lang.Class<?>), setLookupOnStartup(boolean)

• setExposeAccessContext

  public void setExposeAccessContext​(boolean exposeAccessContext)

  Set whether to expose the JNDI environment context for all access to the target object, i.e. for all method invocations on the exposed object reference.

  Default is "false", i.e. to only expose the JNDI context for object lookup. Switch this flag to "true" in order to expose the JNDI environment (including the authorization context) for each method invocation, as needed by WebLogic for JNDI-obtained factories (e.g. JDBC DataSource, JMS ConnectionFactory) with authorization requirements.

• setDefaultObject

  public void setDefaultObject​(Object defaultObject)

  Specify a default object to fall back to if the JNDI lookup fails. Default is none.

  This can be an arbitrary bean reference or literal value. It is typically used for literal values in scenarios where the JNDI environment might define specific config settings but those are not required to be present.

  Note: This is only supported for lookup on startup. If specified together with JndiObjectLocator.setExpectedType(java.lang.Class<?>), the specified value needs to be either of that type or convertible to it.

  另请参阅:

  setLookupOnStartup(boolean), ConfigurableBeanFactory.getTypeConverter(), SimpleTypeConverter

• setBeanFactory

  public void setBeanFactory​(BeanFactory beanFactory)

  从接口复制的说明: BeanFactoryAware
  Callback that supplies the owning factory to a bean instance.

  Invoked after the population of normal bean properties but before an initialization callback such as InitializingBean.afterPropertiesSet() or a custom init-method.

  指定者:

  setBeanFactory 在接口中 BeanFactoryAware

  参数:

  beanFactory - owning BeanFactory (never null). The bean can immediately call methods on the factory.

  另请参阅:

  BeanInitializationException

• setBeanClassLoader

  public void setBeanClassLoader​(ClassLoader classLoader)

  从接口复制的说明: BeanClassLoaderAware
  Callback that supplies the bean class loader to a bean instance.

  Invoked after the population of normal bean properties but before an initialization callback such as InitializingBean'sInitializingBean.afterPropertiesSet() method or a custom init-method.

  指定者:

  setBeanClassLoader 在接口中 BeanClassLoaderAware

  参数:

  classLoader - the owning class loader

• afterPropertiesSet

  public void afterPropertiesSet()
                          throws IllegalArgumentException,
                                 NamingException

  Look up the JNDI object and store it.

  指定者:

  afterPropertiesSet 在接口中 InitializingBean

  覆盖:

  afterPropertiesSet 在类中 JndiObjectLocator

  抛出:

  IllegalArgumentException

  NamingException

• lookupWithFallback

  protected Object lookupWithFallback()
                               throws NamingException

  Lookup variant that returns the specified "defaultObject" (if any) in case of lookup failure.

  返回:

  the located object, or the "defaultObject" as fallback

  抛出:

  NamingException - in case of lookup failure without fallback

  另请参阅:

  setDefaultObject(java.lang.Object)

• getObject

  @Nullable
  public Object getObject()

  Return the singleton JNDI object.

  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.

  The default implementation returns true, since a FactoryBean typically manages a singleton instance.

  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()

• createCompositeInterface

  protected Class<?> createCompositeInterface​(Class<?>[] interfaces)

  Create a composite interface Class for the given interfaces, implementing the given interfaces in one single Class.

  The default implementation builds a JDK proxy class for the given interfaces.

  参数:

  interfaces - the interfaces to merge

  返回:

  the merged interface as Class

  另请参阅:

  Proxy.getProxyClass(java.lang.ClassLoader, java.lang.Class<?>...)