info.pppc.base.system.plugin

Interface ISessionStrategy

All Superinterfaces:

IExtension

All Known Implementing Classes:

PluginManager.SessionStrategy

public interface ISessionStrategy
extends IExtension

Generic interface for plug-in selection strategies. A strategy performs an ordering between possible plug-in implementations based on the parameters specified by a collection of non-functional parameters. This can be used to implement device-specific selection policies such as "use the transceiver with the lowest energy consumption" or "use the fastest transceiver".

Author:

Marcus Handte

Field Summary

Fields inherited from interface info.pppc.base.system.IExtension

EXTENSION_COMPRESSION, EXTENSION_DISCOVERY, EXTENSION_ENCRYPTION, EXTENSION_ROUTING, EXTENSION_SEMANTIC, EXTENSION_SERIALIZATION, EXTENSION_TRANSCEIVER

Method Summary

Methods

Modifier and Type	Method and Description
java.util.Vector	getPlugin(short extension, java.util.Vector plugins, NFCollection collection) This method is called to determine the suitability of a set of plug-ins for a specified extension.

Method Detail

getPlugin

java.util.Vector getPlugin(short extension,
                         java.util.Vector plugins,
                         NFCollection collection)

This method is called to determine the suitability of a set of plug-ins for a specified extension.

Parameters:

extension - The extension layer that is currently considered.

plugins - The plug-in descriptions of compatible plug-ins for the specified layer.

collection - The collection of non-functional parameters.

Returns:

A vector of suitable plug-ins ordered by preference. If a layer must not be added, the vector might as well be empty. If the requirements specified by the collection cannot be fulfilled this method must return null.