jade.core

Interface Service.Slice

All Superinterfaces:

java.io.Serializable

All Known Subinterfaces:

SAMSlice

All Known Implementing Classes:

SAMProxy, SliceProxy

Enclosing interface:

Service

public static interface Service.Slice
extends Serializable

The Slice nested interface represents that part of a service that is deployed at a given network node.

Method Summary

Modifier and Type	Method and Description
Node	getNode() Access the node where this slice resides.
Service	getService() Access the service object which this slice is a part of.
VerticalCommand	serve(HorizontalCommand cmd) Serves an incoming horizontal command, performing any required immediate processing, before turning it into a vertical command to be processed by the incoming filter chain.

Method Detail

getService

Service getService()

Access the service object which this slice is a part of.

Returns:

A Service object, that has this as one of its slices.

See Also:

Service.getSlice(String name)

getNode

Node getNode()
      throws ServiceException

Access the node where this slice resides.

Throws:

ServiceException - If some problems occur in retrieving the local node.

serve

VerticalCommand serve(HorizontalCommand cmd)

Serves an incoming horizontal command, performing any required immediate processing, before turning it into a vertical command to be processed by the incoming filter chain.

Parameters:

cmd - The command that is to be served.

Returns:

A vertical command, that will be processed by the incoming filter chain of the receiving node. If null is returned, no filter/sink processing will happen. This feature can be used to decouple incoming horizontal interaction patterns from vertical incoming commands (e.g. no incoming vertical command is generated until a required set of horizontal commands has been received).