Mercurial > dive4elements > river
comparison flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/BlackboardDataFacet.java @ 2024:2bb160b2768e
New facet, will ease converting other facets to be able to contribute to area computations.
flys-artifacts/trunk@3481 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
|---|---|
| date | Tue, 20 Dec 2011 09:00:51 +0000 |
| parents | |
| children | bb0dede9294f |
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| 2023:7a7c5cad4fe1 | 2024:2bb160b2768e |
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| 1 package de.intevation.flys.artifacts.model; | |
| 2 | |
| 3 import java.util.ArrayList; | |
| 4 import java.util.List; | |
| 5 | |
| 6 import de.intevation.artifacts.Artifact; | |
| 7 import de.intevation.artifacts.CallContext; | |
| 8 | |
| 9 import de.intevation.artifactdatabase.state.DefaultFacet; | |
| 10 | |
| 11 | |
| 12 /** | |
| 13 * Facet that writes artifact-uui and facet index on the blackboard, | |
| 14 * delivers data if asked so. | |
| 15 */ | |
| 16 public class BlackboardDataFacet extends DefaultFacet { | |
| 17 | |
| 18 public BlackboardDataFacet() {} | |
| 19 | |
| 20 /** Do not instantiate a BlackboardDataFacet, subclass it instead. */ | |
| 21 public BlackboardDataFacet(int idx, String name, String description) { | |
| 22 super(idx, name, description); | |
| 23 } | |
| 24 | |
| 25 | |
| 26 /** Hey, We can ArtifactUUID+FacetIndex (i.e. getData)! */ | |
| 27 public List getDataProviderKeys(Artifact art) { | |
| 28 List list = new ArrayList(); | |
| 29 list.add(art.identifier() + getIndex()); | |
| 30 return list; | |
| 31 } | |
| 32 | |
| 33 | |
| 34 /** | |
| 35 * Can provide whatever getData returns. | |
| 36 * @param key will respond on uuid+index | |
| 37 * @param param ignored | |
| 38 * @param context ignored | |
| 39 * @return whatever getData delivers. | |
| 40 */ | |
| 41 public Object provideBlackboardData(Artifact artifact, | |
| 42 Object key, | |
| 43 Object param, | |
| 44 CallContext context | |
| 45 ) { | |
| 46 if (key.equals(artifact.identifier() + getIndex())) { | |
| 47 return getData(artifact, context); | |
| 48 } | |
| 49 else { | |
| 50 return null; | |
| 51 } | |
| 52 } | |
| 53 | |
| 54 } | |
| 55 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |