Mercurial > dive4elements > framework
view artifacts/src/main/java/de/intevation/artifacts/DataProvider.java @ 422:a8b6b4924f4e 2.9
Merged revisions 5376,5383 via svnmerge from
file:///home/clients/bsh/bsh-generischer-viewer/Material/SVN/artifacts/trunk
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r5376 | ingo | 2012-09-07 11:28:43 +0200 (Fr, 07 Sep 2012) | 1 line
Tagged 'artifacts' as 2.9
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r5383 | bricks | 2012-09-07 15:01:43 +0200 (Fr, 07 Sep 2012) | 2 lines
Fix queries for finding a user
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artifacts/tags/2.9@5386 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Fri, 07 Sep 2012 13:09:11 +0000 |
parents | ab3900303f25 |
children |
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package de.intevation.artifacts; /** * DataProviders register on a Blackboard with a key (basically shouting * "I can or know X!"). * * Consumers look at the blackboard and then consume data from these * DataProvider, passing them (optional) parameterization and the blackboard * itself. * * Through the blackboard-passing-when-consuming, also recursive patterns can * be modelled (but take care, there is no in-built cycle detection). */ public interface DataProvider { /** Register this DataProvider on a blackboard under a key. */ public void register(CallContext blackboard); /** Provide data, given parameterization and a "blackboard". */ public Object provideData(Object key, Object param, CallContext context); } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :