spring-context

org.springframework.remoting.rmi
Class RmiProxyFactoryBean

java.lang.Object
  extended by org.springframework.remoting.support.RemotingSupport
      extended by org.springframework.remoting.support.RemoteAccessor
          extended by org.springframework.remoting.support.UrlBasedRemoteAccessor
              extended by org.springframework.remoting.support.RemoteInvocationBasedAccessor
                  extended by org.springframework.remoting.rmi.RmiClientInterceptor
                      extended by org.springframework.remoting.rmi.RmiProxyFactoryBean
All Implemented Interfaces:
org.aopalliance.aop.Advice, org.aopalliance.intercept.Interceptor, org.aopalliance.intercept.MethodInterceptor, org.springframework.beans.factory.Aware, org.springframework.beans.factory.BeanClassLoaderAware, org.springframework.beans.factory.FactoryBean<java.lang.Object>, org.springframework.beans.factory.InitializingBean

public class RmiProxyFactoryBean
extends RmiClientInterceptor
implements org.springframework.beans.factory.FactoryBean<java.lang.Object>, org.springframework.beans.factory.BeanClassLoaderAware

FactoryBean for RMI proxies, supporting both conventional RMI services and RMI invokers. Exposes the proxied service for use as a bean reference, using the specified service interface. Proxies will throw Spring's unchecked RemoteAccessException on remote invocation failure instead of RMI's RemoteException.

The service URL must be a valid RMI URL like "rmi://localhost:1099/myservice". RMI invokers work at the RmiInvocationHandler level, using the same invoker stub for any service. Service interfaces do not have to extend java.rmi.Remote or throw java.rmi.RemoteException. Of course, in and out parameters have to be serializable.

With conventional RMI services, this proxy factory is typically used with the RMI service interface. Alternatively, this factory can also proxy a remote RMI service with a matching non-RMI business interface, i.e. an interface that mirrors the RMI service methods but does not declare RemoteExceptions. In the latter case, RemoteExceptions thrown by the RMI stub will automatically get converted to Spring's unchecked RemoteAccessException.

The major advantage of RMI, compared to Hessian and Burlap, is serialization. Effectively, any serializable Java object can be transported without hassle. Hessian and Burlap have their own (de-)serialization mechanisms, but are HTTP-based and thus much easier to setup than RMI. Alternatively, consider Spring's HTTP invoker to combine Java serialization with HTTP-based transport.

Since:
13.05.2003
Author:
Juergen Hoeller
See Also:
RemoteAccessor.setServiceInterface(java.lang.Class), UrlBasedRemoteAccessor.setServiceUrl(java.lang.String), RmiClientInterceptor, RmiServiceExporter, Remote, RemoteException, RemoteAccessException, org.springframework.remoting.caucho.HessianProxyFactoryBean, org.springframework.remoting.caucho.BurlapProxyFactoryBean, org.springframework.remoting.httpinvoker.HttpInvokerProxyFactoryBean

Field Summary
 
Fields inherited from class org.springframework.remoting.support.RemotingSupport
logger
 
Constructor Summary
RmiProxyFactoryBean()
           
 
Method Summary
 void afterPropertiesSet()
           
 java.lang.Object getObject()
           
 java.lang.Class<?> getObjectType()
           
 boolean isSingleton()
           
 
Methods inherited from class org.springframework.remoting.rmi.RmiClientInterceptor
doInvoke, doInvoke, getStub, invoke, isConnectFailure, lookupStub, prepare, refreshAndRetry, setCacheStub, setLookupStubOnStartup, setRefreshStubOnConnectFailure, setRegistryClientSocketFactory
 
Methods inherited from class org.springframework.remoting.support.RemoteInvocationBasedAccessor
createRemoteInvocation, getRemoteInvocationFactory, recreateRemoteInvocationResult, setRemoteInvocationFactory
 
Methods inherited from class org.springframework.remoting.support.UrlBasedRemoteAccessor
getServiceUrl, setServiceUrl
 
Methods inherited from class org.springframework.remoting.support.RemoteAccessor
getServiceInterface, setServiceInterface
 
Methods inherited from class org.springframework.remoting.support.RemotingSupport
getBeanClassLoader, overrideThreadContextClassLoader, resetThreadContextClassLoader, setBeanClassLoader
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface org.springframework.beans.factory.BeanClassLoaderAware
setBeanClassLoader
 

Constructor Detail

RmiProxyFactoryBean

public RmiProxyFactoryBean()
Method Detail

afterPropertiesSet

public void afterPropertiesSet()
Specified by:
afterPropertiesSet in interface org.springframework.beans.factory.InitializingBean
Overrides:
afterPropertiesSet in class RmiClientInterceptor

getObject

public java.lang.Object getObject()
Specified by:
getObject in interface org.springframework.beans.factory.FactoryBean<java.lang.Object>

getObjectType

public java.lang.Class<?> getObjectType()
Specified by:
getObjectType in interface org.springframework.beans.factory.FactoryBean<java.lang.Object>

isSingleton

public boolean isSingleton()
Specified by:
isSingleton in interface org.springframework.beans.factory.FactoryBean<java.lang.Object>

spring-context