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annotate flys-artifacts/src/main/java/org/dive4elements/river/artifacts/model/fixings/FixingsFacet.java @ 5831:bd047b71ab37

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Repaired internal references
author Sascha L. Teichmann <teichmann@intevation.de>
date Thu, 25 Apr 2013 12:06:39 +0200
parents flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/fixings/FixingsFacet.java@b195fede1c3b
children
rev   line source
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bd047b71ab37 Repaired internal references
Sascha L. Teichmann <teichmann@intevation.de>
parents: 4736
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1 package org.dive4elements.river.artifacts.model.fixings;
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2
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3 import org.dive4elements.artifacts.CallContext;
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4 import org.dive4elements.river.artifacts.model.DataFacet;
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5 import org.dive4elements.river.artifacts.states.DefaultState.ComputeType;
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6
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7 /**
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8 * Facet to access the current Km from the context safely
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b195fede1c3b Remove trailing whitespace.
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9 *
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10 * @author <a href="mailto:bjoern.ricks@intevation.de">Björn Ricks</a>
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11 */
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12 public class FixingsFacet extends DataFacet {
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13
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14 public static final Double INVALID_KM = Double.valueOf(-1d);
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15 public static final String CURRENT_KM = "currentKm";
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16
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17 public FixingsFacet() {
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18 }
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19
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20 public FixingsFacet(String name, String description) {
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21 super(0, name, description, ComputeType.ADVANCE, null, null);
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22 }
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23
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24 public FixingsFacet(
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25 int index,
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26 String name,
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27 String description,
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28 ComputeType type,
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29 String hash,
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30 String stateId
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31 ) {
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32 super(index, name, description, type, hash, stateId);
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33 }
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34
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35 /**
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36 * Returns the current km from the context.
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37 * If the context is null or doesn't contain a currentKm then a double value of -1 will
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38 * be returned.
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39 * @param context The CallContext instance
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40 * @return the current km as double
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41 */
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42 protected double getCurrentKm(CallContext context) {
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43 if (context == null) {
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44 return INVALID_KM;
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45 }
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46 Double dkm = (Double)context.getContextValue(CURRENT_KM);
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47 if (dkm == null) {
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48 return INVALID_KM;
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49 }
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50 return dkm.doubleValue();
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51 }
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52 }
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