Package org.omg.PortableServer
Class ServantLocatorPOATie
java.lang.Object
org.omg.PortableServer.Servant
org.omg.PortableServer.ServantLocatorPOA
org.omg.PortableServer.ServantLocatorPOATie
- All Implemented Interfaces:
InvokeHandler
,ServantLocatorOperations
,ServantManagerOperations
When the POA has the NON_RETAIN policy it uses servant
managers that are ServantLocators. Because the POA
knows that the servant returned by this servant
manager will be used only for a single request,
it can supply extra information to the servant
manager's operations and the servant manager's pair
of operations may be able to cooperate to do
something different than a ServantActivator.
When the POA uses the ServantLocator interface,
immediately after performing the operation invocation
on the servant returned by preinvoke, the POA will
invoke postinvoke on the servant manager, passing the
ObjectId value and the Servant value as parameters
(among others). This feature may be used to force
every request for objects associated with a POA to
be mediated by the servant manager.
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Field Summary
Fields -
Constructor Summary
ConstructorsConstructorDescriptionServantLocatorPOATie
(ServantLocatorOperations delegate) ServantLocatorPOATie
(ServantLocatorOperations delegate, POA poa) -
Method Summary
Modifier and TypeMethodDescriptionReturns the root POA from the ORB instance associated with the servant.void
_delegate
(ServantLocatorOperations delegate) void
postinvoke
(byte[] oid, POA adapter, String operation, Object the_cookie, Servant the_servant) This operation is invoked whenever a servant completes a request.preinvoke
(byte[] oid, POA adapter, String operation, CookieHolder the_cookie) This operations is used to get a servant that will be used to process the request that caused preinvoke to be called.Methods inherited from class org.omg.PortableServer.ServantLocatorPOA
_all_interfaces, _invoke, _this, _this
Methods inherited from class org.omg.PortableServer.Servant
_get_delegate, _get_interface_def, _is_a, _non_existent, _object_id, _orb, _poa, _set_delegate, _this_object, _this_object
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Field Details
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_impl
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_poa
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Constructor Details
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ServantLocatorPOATie
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ServantLocatorPOATie
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Method Details
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_delegate
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_delegate
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_default_POA
Description copied from class:Servant
Returns the root POA from the ORB instance associated with the servant. Subclasses may override this method to return a different POA.- Overrides:
_default_POA
in classServant
- Returns:
default_POA
the POA associated with theServant
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preinvoke
public Servant preinvoke(byte[] oid, POA adapter, String operation, CookieHolder the_cookie) throws ForwardRequest This operations is used to get a servant that will be used to process the request that caused preinvoke to be called.- Parameters:
oid
- the object id associated with object on which the request was made.adapter
- the reference for POA in which the object is being activated.operation
- the operation name.the_cookie
- an opaque value that can be set by the servant manager to be used during postinvoke.- Returns:
- Servant used to process incoming request.
- Throws:
ForwardRequest
- to indicate to the ORB that it is responsible for delivering the current request and subsequent requests to the object denoted in the forward_reference member of the exception.
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postinvoke
public void postinvoke(byte[] oid, POA adapter, String operation, Object the_cookie, Servant the_servant) This operation is invoked whenever a servant completes a request.- Parameters:
oid
- the object id ssociated with object on which the request was made.adapter
- the reference for POA in which the object was active.operation
- the operation to invokethe_cookie
- an opaque value that contains the data set by preinvoke.the_servant
- reference to the servant that is associated with the object.
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