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Invocation (JBoss Server API) - JBoss 4.0.1 sp1 server API Documentation 英文版文档

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org.jboss.invocation
Class Invocation

java.lang.Object
  org.jboss.invocation.Invocation

Direct Known Subclasses:

LocalEJBInvocation, MarshalledInvocation

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public class Invocation

extends Object

The Invocation object is the generic object flowing through our interceptors.

The heart of it is the payload map that can contain anything we then put readers on them. The first reader is this Invocation object that can interpret the data in it.

Essentially we can carry ANYTHING from the client to the server, we keep a series of of predifined variables and method calls to get at the pointers. But really it is just a repository of objects.

Version:

$Revision: 1.22 $

Author:

Marc Fleury, Christoph G. Jung

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Field Summary
Object[]	args
Map	as_is_payload           as_is classes that will not be marshalled by the invocation (java.* and javax.* or anything in system classpath is OK)
InvocationContext	invocationContext
InvocationType	invocationType
static String[]	INVOKE_SIGNATURE           The signature of the invoke() method
Method	method
Object	objectName
Map	payload           Payload will be marshalled for type hiding at the RMI layers.
Map	transient_payload           Contextual information to the invocation that is not part of the payload.

 

Constructor Summary

Invocation()           No-args constructor exposed for externalization only.

Invocation(Object id, Method m, Object[] args, Transaction tx, Principal identity, Object credential)

 

Method Summary
Object[]	getArguments()
Map	getAsIsPayload()
Object	getAsIsValue(Object key)
Object	getCredential()
Object	getEnterpriseContext()
Object	getId()
InvocationContext	getInvocationContext()           marcf: SCOTT WARNING! I removed the "setPrincipal" that was called here
Method	getMethod()           get on method Return the invocation method.
Object	getObjectName()
Map	getPayload()
Object	getPayloadValue(Object key)
Principal	getPrincipal()
Transaction	getTransaction()           get the transaction.
Map	getTransientPayload()
Object	getTransientValue(Object key)
InvocationType	getType()
Object	getValue(Object key)           Get a value from the stores.
boolean	isLocal()           Helper method to determine whether an invocation is local
Object	performCall(Object instance, Method m, Object[] arguments)           This method will be called by the container(ContainerInterceptor) to issue the ultimate method call represented by this invocation.
void	setArguments(Object[] arguments)           A list of arguments for the method.
void	setCredential(Object credential)           Change the security credentials of this invocation.
void	setEnterpriseContext(Object ctx)
void	setId(Object id)           Return the invocation target ID.
void	setInvocationContext(InvocationContext ctx)
void	setMethod(Method method)           set on method Return the invocation method.
void	setObjectName(Object objectName)           container for server side association.
void	setPrincipal(Principal principal)           Change the security identity of this invocation.
void	setTransaction(Transaction tx)           set the transaction.
void	setType(InvocationType type)           An arbitrary type.
void	setValue(Object key, Object value)           The generic store of variables.
void	setValue(Object key, Object value, PayloadKey type)           Advanced store Here you can pass a TYPE that indicates where to put the value.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

INVOKE_SIGNATURE

public static final String[] INVOKE_SIGNATURE

The signature of the invoke() method

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transient_payload

public Map transient_payload

Contextual information to the invocation that is not part of the payload.

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as_is_payload

public Map as_is_payload

as_is classes that will not be marshalled by the invocation (java.* and javax.* or anything in system classpath is OK)

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payload

public Map payload

Payload will be marshalled for type hiding at the RMI layers.

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invocationContext

public InvocationContext invocationContext

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args

public Object[] args

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objectName

public Object objectName

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method

public Method method

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invocationType

public InvocationType invocationType

Constructor Detail

Invocation

public Invocation()

No-args constructor exposed for externalization only.

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Invocation

public Invocation(Object id,
                  Method m,
                  Object[] args,
                  Transaction tx,
                  Principal identity,
                  Object credential)

Method Detail

setValue

public void setValue(Object key,
                     Object value)

The generic store of variables.

The generic getter and setter is really all that one needs to talk to this object. We introduce typed getters and setters for convenience and code readability in the codeba

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setValue

public void setValue(Object key,
                     Object value,
                     PayloadKey type)

Advanced store Here you can pass a TYPE that indicates where to put the value. TRANSIENT: the value is put in a map that WON'T be passed AS_IS: no need to marshall the value when passed (use for all JDK java types) PAYLOAD: we need to marshall the value as its type is application specific

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getValue

public Object getValue(Object key)

Get a value from the stores.

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getPayloadValue

public Object getPayloadValue(Object key)

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getTransientValue

public Object getTransientValue(Object key)

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getAsIsValue

public Object getAsIsValue(Object key)

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setTransaction

public void setTransaction(Transaction tx)

set the transaction.

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getTransaction

public Transaction getTransaction()

get the transaction.

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setPrincipal

public void setPrincipal(Principal principal)

Change the security identity of this invocation.

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getPrincipal

public Principal getPrincipal()

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setCredential

public void setCredential(Object credential)

Change the security credentials of this invocation.

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getCredential

public Object getCredential()

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setObjectName

public void setObjectName(Object objectName)

container for server side association.

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getObjectName

public Object getObjectName()

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setType

public void setType(InvocationType type)

An arbitrary type.

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getType

public InvocationType getType()

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setId

public void setId(Object id)

Return the invocation target ID. Can be used to identify a cached object

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getId

public Object getId()

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setMethod

public void setMethod(Method method)

set on method Return the invocation method.

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getMethod

public Method getMethod()

get on method Return the invocation method.

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setArguments

public void setArguments(Object[] arguments)

A list of arguments for the method.

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getArguments

public Object[] getArguments()

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getInvocationContext

public InvocationContext getInvocationContext()

marcf: SCOTT WARNING! I removed the "setPrincipal" that was called here

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setInvocationContext

public void setInvocationContext(InvocationContext ctx)

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setEnterpriseContext

public void setEnterpriseContext(Object ctx)

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getEnterpriseContext

public Object getEnterpriseContext()

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getTransientPayload

public Map getTransientPayload()

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getAsIsPayload

public Map getAsIsPayload()

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getPayload

public Map getPayload()

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performCall

public Object performCall(Object instance,
                          Method m,
                          Object[] arguments)
                   throws IllegalArgumentException,
                          IllegalAccessException,
                          InvocationTargetException,
                          Exception

This method will be called by the container(ContainerInterceptor) to issue the ultimate method call represented by this invocation. It is overwritten, e.g., by the WS4EE invocation in order to realize JAXRPC pre- and postprocessing.

Throws:

IllegalArgumentException

IllegalAccessException

InvocationTargetException

Exception

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isLocal

public boolean isLocal()

Helper method to determine whether an invocation is local

Returns:

true when local, false otherwise

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