bugJava MultiGraph Collection - Bugs: bug #28532, Type of the graphs is perhaps the...


bug #28532: Type of the graphs is perhaps the wrong way around.

Submitted by:  Paul Jakma <paul>
Submitted on:  Sat 09 Jan 2010 06:10:23 PM UTC  
Category:  Interface Severity:  2 - Minor
Status:  None Privacy:  Public
Assigned to:  None Open/Closed:  Open

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Sat 09 Jan 2010 06:10:23 PM UTC, original submission:  

At the moment SimpleGraph (undirected, simple graph implementation) implements Graph. Which means a more restrictive type is a sub-type of a less restrictive one, which breaks substitutability.

Really, we should have a collection of distinct interfaces, one for each  Graph type, and then have a general interface that implements all.

Paul Jakma <paul>
Project Administrator


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