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To provide, through a standard web-service interface, a tuple-space-like capability which can be used by other services and by applications running in the ELF container.
The API is more limited than that of We have chosen to implement this service instead of using JavaSpaces, the tuple-space which has long been part of the Jini Technology package (see http://java.sun.com/developer/products/jini and also http://javaspaces.org), for two reasons:
- The API is more limited; we do not require the full generality of JavaSpaces with respect to serializable classes; our service accepts an open-ended (i.e., basically untyped) wrapper object containing a serialized xml blob as payload, corresponding to the
ncsa.tools.common.types.Configurationobject. - There are serious problems in using multicast technologies on NCSA's production resource subnets.