org.springframework.remoting.support

Class RemoteInvocation

java.lang.Object

org.springframework.remoting.support.RemoteInvocation

All Implemented Interfaces:

Serializable

public class RemoteInvocation
extends Object
implements Serializable

Encapsulates a remote invocation, providing core method invocation properties in a serializable fashion. Used for RMI and HTTP-based serialization invokers.

This is an SPI class, typically not used directly by applications. Can be subclassed for additional invocation parameters.

Both RemoteInvocation and RemoteInvocationResult are designed for use with standard Java serialization as well as JavaBean-style serialization.

Since:

25.02.2004

Author:

Juergen Hoeller

See Also:

RemoteInvocationResult, RemoteInvocationFactory, RemoteInvocationExecutor, RmiProxyFactoryBean, RmiServiceExporter, HttpInvokerProxyFactoryBean, HttpInvokerServiceExporter, Serialized Form

Constructor Summary

Constructors

Constructor and Description
RemoteInvocation() Create a new RemoteInvocation for JavaBean-style deserialization (e.g.
RemoteInvocation(MethodInvocation methodInvocation) Create a new RemoteInvocation for the given AOP method invocation.
RemoteInvocation(String methodName, Class<?>[] parameterTypes, Object[] arguments) Create a new RemoteInvocation for the given parameters.

Method Summary

Modifier and Type	Method and Description
void	addAttribute(String key, Serializable value) Add an additional invocation attribute.
Object[]	getArguments() Return the arguments for the target method call.
Serializable	getAttribute(String key) Retrieve the attribute for the given key, if any.
Map<String,Serializable>	getAttributes() Return the attributes Map.
String	getMethodName() Return the name of the target method.
Class<?>[]	getParameterTypes() Return the parameter types of the target method.
Object	invoke(Object targetObject) Perform this invocation on the given target object.
void	setArguments(Object[] arguments) Set the arguments for the target method call.
void	setAttributes(Map<String,Serializable> attributes) Set the attributes Map.
void	setMethodName(String methodName) Set the name of the target method.
void	setParameterTypes(Class<?>[] parameterTypes) Set the parameter types of the target method.
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

RemoteInvocation

public RemoteInvocation(MethodInvocation methodInvocation)

Create a new RemoteInvocation for the given AOP method invocation.

Parameters:

methodInvocation - the AOP invocation to convert

RemoteInvocation

public RemoteInvocation(String methodName,
                        Class<?>[] parameterTypes,
                        Object[] arguments)

Create a new RemoteInvocation for the given parameters.

Parameters:

methodName - the name of the method to invoke

parameterTypes - the parameter types of the method

arguments - the arguments for the invocation

RemoteInvocation

public RemoteInvocation()

Create a new RemoteInvocation for JavaBean-style deserialization (e.g. with Jackson).

Method Detail

setMethodName

public void setMethodName(String methodName)

Set the name of the target method.

This setter is intended for JavaBean-style deserialization.

getMethodName

public String getMethodName()

Return the name of the target method.

setParameterTypes

public void setParameterTypes(Class<?>[] parameterTypes)

Set the parameter types of the target method.

This setter is intended for JavaBean-style deserialization.

getParameterTypes

public Class<?>[] getParameterTypes()

Return the parameter types of the target method.

setArguments

public void setArguments(Object[] arguments)

Set the arguments for the target method call.

This setter is intended for JavaBean-style deserialization.

getArguments

public Object[] getArguments()

Return the arguments for the target method call.

addAttribute

public void addAttribute(String key,
                         Serializable value)
                  throws IllegalStateException

Add an additional invocation attribute. Useful to add additional invocation context without having to subclass RemoteInvocation.

Attribute keys have to be unique, and no overriding of existing attributes is allowed.

The implementation avoids to unnecessarily create the attributes Map, to minimize serialization size.

Parameters:

key - the attribute key

value - the attribute value

Throws:

IllegalStateException - if the key is already bound

getAttribute

public Serializable getAttribute(String key)

Retrieve the attribute for the given key, if any.

The implementation avoids to unnecessarily create the attributes Map, to minimize serialization size.

Parameters:

key - the attribute key

Returns:

the attribute value, or null if not defined

setAttributes

public void setAttributes(Map<String,Serializable> attributes)

Set the attributes Map. Only here for special purposes: Preferably, use addAttribute(java.lang.String, java.io.Serializable) and getAttribute(java.lang.String).

Parameters:

attributes - the attributes Map

See Also:

addAttribute(java.lang.String, java.io.Serializable), getAttribute(java.lang.String)

getAttributes

public Map<String,Serializable> getAttributes()

Return the attributes Map. Mainly here for debugging purposes: Preferably, use addAttribute(java.lang.String, java.io.Serializable) and getAttribute(java.lang.String).

Returns:

the attributes Map, or null if none created

See Also:

addAttribute(java.lang.String, java.io.Serializable), getAttribute(java.lang.String)

invoke

public Object invoke(Object targetObject)
              throws NoSuchMethodException,
                     IllegalAccessException,
                     InvocationTargetException

Perform this invocation on the given target object. Typically called when a RemoteInvocation is received on the server.

Parameters:

targetObject - the target object to apply the invocation to

Returns:

the invocation result

Throws:

NoSuchMethodException - if the method name could not be resolved

IllegalAccessException - if the method could not be accessed

InvocationTargetException - if the method invocation resulted in an exception

See Also:

Method.invoke(java.lang.Object, java.lang.Object...)

toString

public String toString()

Overrides:

toString in class Object