Mercurial > dive4elements > framework

annotate artifact-database/src/main/java/de/intevation/artifactdatabase/state/ArtifactAndFacet.java @ 378:71ff234713a6 2.6.1 pre2.7-2012-03-16

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Pass context when asking facets for keys to write on blackboard. artifacts/trunk@4032 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Fri, 10 Feb 2012 12:33:57 +0000
parents 1ffc09fec1c8
children
rev   line source
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1 package de.intevation.artifactdatabase.state;
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2
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3 import java.util.List;
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4
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5 import de.intevation.artifacts.Artifact;
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6 import de.intevation.artifacts.CallContext;
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7 import de.intevation.artifacts.DataProvider;
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8
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9
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10 /**
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11 * A bundle of a "native" Facet and its Artifact.
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12 */
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13 public class ArtifactAndFacet implements DataProvider {
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14 /** The Artifact. */
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15 protected Artifact artifact;
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16
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17 /** The (native) facet. */
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18 protected Facet facet;
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19
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20 /** An alternative facet description that might be set from outside. */
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21 protected String facetDescription;
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22
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23
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24 /** Trivial constructor. */
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25 public ArtifactAndFacet(
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26 Artifact a,
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27 Facet f
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28 ) {
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29 this.artifact = a;
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30 this.facet = f;
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31 }
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32
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33
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34 /** Get data (to plot). */
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35 public Object getData(CallContext context) {
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36 return facet.getData(artifact, context);
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37 }
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38
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39
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40 /** Get data (for other facet). */
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41 @Override
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42 public Object provideData(Object key, Object param, CallContext context) {
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43 return facet.provideBlackboardData(artifact, key, param, context);
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44 }
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45
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46
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47 /** (Maybe) Register on blackboard (depending on facet). */
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48 @Override
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49 public void register(CallContext context) {
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50 List keys = facet.getDataProviderKeys(this.artifact, context);
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51 if (keys == null) {
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52 return;
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53 }
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54 for (Object key: keys) {
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55 context.registerDataProvider(key, this);
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56 }
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57 }
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58
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59
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60 /** Access the artifact. */
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61 public Artifact getArtifact() {
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62 return artifact;
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63 }
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64
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65
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66 /** Access the (native) facet. */
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67 public Facet getFacet() {
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68 return facet;
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69 }
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70
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71
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72 /** Shortcut to facets name. */
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73 public String getFacetName() {
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74 return facet.getName();
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75 }
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76
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77
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78 /**
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79 * Returns the description for a facet. The return value depends on the
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80 * internal <i>facetDescription</i> instance variable. If this has been set
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81 * by setFacetDescription, this value is returned, otherwise the return
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82 * value of facet.getDescription().
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83 */
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84 public String getFacetDescription() {
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85 if (facetDescription == null) {
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86 return facet.getDescription();
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87 }
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88
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89 return facetDescription;
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90 }
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92
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93 public void setFacetDescription(String facetDescription) {
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94 this.facetDescription = facetDescription;
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95 }
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96 }
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97 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org