|
||||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
public interface GumpClient
Represents a grid consumer that wants to use grid machines. This consumer
gains access to grid machines through a grid machines provider. These two
entities, grid machines and providers, are represented, respectively, by
Gum
and Gump
instances.
To request grid machines, an instance of GumClient
uses the
Gump.requestGums()
method. The provider then calls back the
consumer to deliver Gum
instances through a set of invocations
of hereIsGum()
.
This interface is part of the core interfaces of the OurGrid project, along
with Gum
and Gump
. They define a general way
of getting access to and use machines on a grid, abstracting differences on
doing so.
Method Summary | |
---|---|
ObjectID |
getObjectID()
Returns the Identification object related to this GumpClient . |
void |
hereIsGum(GumResponseEntry gumResponseEntry)
Delivers a grid machine ( Gum ) to this consumer. |
Method Detail |
---|
void hereIsGum(GumResponseEntry gumResponseEntry) throws java.rmi.RemoteException
Delivers a grid machine (Gum
) to this consumer. The grid
machine satisfies the requirements of a specific request made by this
consumer. The respective request is informed through a requestID which
travels inside the parameter of type GumResponseEntry
,
which also contains a reference to the Gum
, a gum
specification (GumSpec
) and a ID of the grid machine
provider.
The grid machine availability has no guarantees. It may become unavailable due to failures or to the provider's will. For example, the provider may decide to schedule the grid machine to another consumer.
Also, it is expected that the consumer releases the Gum
when it does not need it anymore. To do this the consumer must invoke the
method Gump.finishRequestGums()
.
gumResponseEntry
- an object containing the information about the
delivery. It contains a reference to the Gum
, a
gum specification (GumSpec
) and a ID of the grid
machine provider.
java.rmi.RemoteException
- if some RMI error occurs during the method
invocation.ObjectID getObjectID() throws java.rmi.RemoteException
GumpClient
.
java.rmi.RemoteException
- if some RMI error occurs during the method
invocation.
|
||||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |