Mercurial > dive4elements > framework
annotate artifacts/src/main/java/de/intevation/artifacts/DataProvider.java @ 398:ab3900303f25 2.8
Removed same package imports.
artifacts/trunk@5008 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Sun, 15 Jul 2012 16:18:50 +0000 |
parents | 9c8d91708d28 |
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9c8d91708d28
Added DataProvider interface (interface for inter-facet communication).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
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1 package de.intevation.artifacts; |
9c8d91708d28
Added DataProvider interface (interface for inter-facet communication).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
|
2 |
9c8d91708d28
Added DataProvider interface (interface for inter-facet communication).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
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3 /** |
9c8d91708d28
Added DataProvider interface (interface for inter-facet communication).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
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4 * DataProviders register on a Blackboard with a key (basically shouting |
9c8d91708d28
Added DataProvider interface (interface for inter-facet communication).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
|
5 * "I can or know X!"). |
9c8d91708d28
Added DataProvider interface (interface for inter-facet communication).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
|
6 * |
9c8d91708d28
Added DataProvider interface (interface for inter-facet communication).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
|
7 * Consumers look at the blackboard and then consume data from these |
9c8d91708d28
Added DataProvider interface (interface for inter-facet communication).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
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8 * DataProvider, passing them (optional) parameterization and the blackboard |
9c8d91708d28
Added DataProvider interface (interface for inter-facet communication).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
|
9 * itself. |
9c8d91708d28
Added DataProvider interface (interface for inter-facet communication).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
|
10 * |
9c8d91708d28
Added DataProvider interface (interface for inter-facet communication).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
|
11 * Through the blackboard-passing-when-consuming, also recursive patterns can |
9c8d91708d28
Added DataProvider interface (interface for inter-facet communication).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
|
12 * be modelled (but take care, there is no in-built cycle detection). |
9c8d91708d28
Added DataProvider interface (interface for inter-facet communication).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
|
13 */ |
9c8d91708d28
Added DataProvider interface (interface for inter-facet communication).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
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14 public interface DataProvider { |
9c8d91708d28
Added DataProvider interface (interface for inter-facet communication).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
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15 /** Register this DataProvider on a blackboard under a key. */ |
9c8d91708d28
Added DataProvider interface (interface for inter-facet communication).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
|
16 public void register(CallContext blackboard); |
9c8d91708d28
Added DataProvider interface (interface for inter-facet communication).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
|
17 |
9c8d91708d28
Added DataProvider interface (interface for inter-facet communication).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
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18 /** Provide data, given parameterization and a "blackboard". */ |
9c8d91708d28
Added DataProvider interface (interface for inter-facet communication).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
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19 public Object provideData(Object key, Object param, CallContext context); |
9c8d91708d28
Added DataProvider interface (interface for inter-facet communication).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
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20 } |
9c8d91708d28
Added DataProvider interface (interface for inter-facet communication).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
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21 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |