程序包 cn.taketoday.jndi

类 JndiObjectFactoryBean

java.lang.Object
cn.taketoday.jndi.JndiAccessor
cn.taketoday.jndi.JndiLocatorSupport
cn.taketoday.jndi.JndiObjectLocator
cn.taketoday.jndi.JndiObjectFactoryBean
所有已实现的接口:
Aware, BeanClassLoaderAware, BeanFactoryAware, FactoryBean<Object>, InitializingBean
public class JndiObjectFactoryBean extends JndiObjectLocator implements FactoryBean<Object>, BeanFactoryAware, BeanClassLoaderAware
FactoryBean that looks up a JNDI object. Exposes the object found in JNDI for bean references, e.g. for data access object's "dataSource" property in case of a DataSource.

The typical usage will be to register this as singleton factory (e.g. for a certain JNDI-bound DataSource) in an application context, and give bean references to application services that need it.

The default behavior is to look up the JNDI object on startup and cache it. This can be customized through the "lookupOnStartup" and "cache" properties, using a JndiObjectTargetSource underneath. Note that you need to specify a "proxyInterface" in such a scenario, since the actual JNDI object type is not known in advance.

Of course, bean classes in a Framework environment may lookup e.g. a DataSource from JNDI themselves. This class simply enables central configuration of the JNDI name, and easy switching to non-JNDI alternatives. The latter is particularly convenient for test setups, reuse in standalone clients, etc.

Note that switching to e.g. DriverManagerDataSource is just a matter of configuration: Simply replace the definition of this FactoryBean with a cn.taketoday.jdbc.datasource.DriverManagerDataSource definition!

从以下版本开始:
22.05.2003
作者:
Juergen Hoeller
另请参阅:

  • 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

      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:

    • 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:

    • 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:

    • 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:

    • setBeanFactory

      public void setBeanFactory(BeanFactory beanFactory)
      指定者:
      setBeanFactory 在接口中 BeanFactoryAware

    • setBeanClassLoader

      public void setBeanClassLoader(ClassLoader classLoader)
      指定者:
      setBeanClassLoader 在接口中 BeanClassLoaderAware

    • 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:

    • getObject

      @Nullable public Object getObject()
      Return the singleton JNDI object.
      指定者:
      getObject 在接口中 FactoryBean<Object>

    • getObjectType

      public Class<?> getObjectType()
      指定者:
      getObjectType 在接口中 FactoryBean<Object>

    • isSingleton

      public boolean isSingleton()
      指定者:
      isSingleton 在接口中 FactoryBean<Object>

    • 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: