com.hp.hpl.jena.enhanced
Class Implementation

java.lang.Object
  com.hp.hpl.jena.enhanced.Implementation

public abstract class Implementation
extends java.lang.Object

Interface defining a generic factory interface for generating enhanced nodes from normal graph nodes. Implementation classes should have a public final member variable called factory of this type.

Author:

Jeremy Carroll (original code)
Chris Dollin (original code)
Ian Dickinson (refactoring and commentage)

Constructor Summary

Implementation()

Method Summary

abstract boolean	canWrap(Node node, EnhGraph eg) true iff wrapping (node, eg) would succeed.
abstract EnhNode	wrap(Node node, EnhGraph eg) Create a new EnhNode wrapping a Node in the context of an EnhGraph

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Implementation

public Implementation()

Method Detail

wrap

public abstract EnhNode wrap(Node node,
                             EnhGraph eg)

Create a new EnhNode wrapping a Node in the context of an EnhGraph

Parameters:

node - The node to be wrapped

eg - The graph containing the node

Returns:

A new enhanced node which wraps node but presents the interface(s) that this factory encapsulates.

canWrap

public abstract boolean canWrap(Node node,
                                EnhGraph eg)

true iff wrapping (node, eg) would succeed.

Parameters:

node - the node to test for suitability

eg - the enhanced graph the node appears in

Returns:

true iff the node can represent our type in that graph