Mercurial > dive4elements > river
view flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/BlackboardDataFacet.java @ 4655:cd44d28d0fbc
Move the access to artifact data to the Access object
Use BedHeightAccess class to receive the data from the artifact. This abstracts
the data access from the actual artifact.
author | Björn Ricks <bjoern.ricks@intevation.de> |
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date | Tue, 11 Dec 2012 09:44:04 +0100 |
parents | ccc955ef8811 |
children |
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package de.intevation.flys.artifacts.model; import java.util.ArrayList; import java.util.List; import de.intevation.artifacts.Artifact; import de.intevation.artifacts.CallContext; import de.intevation.artifactdatabase.state.Facet; import de.intevation.artifactdatabase.state.DefaultFacet; /** * Facet that writes artifact-uui and facet index on the blackboard, * delivers data if asked so. */ public class BlackboardDataFacet extends DefaultFacet { public BlackboardDataFacet() {} /** Do not instantiate a BlackboardDataFacet, subclass it instead. */ public BlackboardDataFacet(int idx, String name, String description) { super(idx, name, description); } /** Do not instantiate a BlackboardDataFacet, subclass it instead. */ public BlackboardDataFacet(String name, String description) { super(0, name, description); } /** Define key to which to respond when asked for 'blackboard' * (DataProvider)- data. */ public String areaDataKey(Artifact art) { return art.identifier() + ":" + getName() + ":" + getIndex(); } /** Hey, We can ArtifactUUID+:+FacetName+:+FacetIndex (i.e. getData)! */ @Override public List getStaticDataProviderKeys(Artifact art) { List list = new ArrayList(); list.add(areaDataKey(art)); return list; } /** * Can provide whatever getData returns. * @param key will respond on uuid+index * @param param ignored * @param context ignored * @return whatever getData delivers. */ @Override public Object provideBlackboardData(Artifact artifact, Object key, Object param, CallContext context ) { if (key.equals(areaDataKey(artifact))) { return getData(artifact, context); } else { return null; } } /** Copy deeply. */ @Override public Facet deepCopy() { BlackboardDataFacet copy = new BlackboardDataFacet(); copy.set(this); return copy; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :