Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/AbstractStaticStateArtifact.java @ 3984:89d7e97e9c9a

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Manual points working in fixing Delta W/t char (#462).
author Christian Lins <clins@intevation.de>
date Sat, 29 Sep 2012 20:09:27 +0200
parents 4e1b3b4ef132
children 44d27b8bb0bc 1755a1bfe5ce
rev   line source
3936
4e1b3b4ef132 Add new Artifacts and State for displaying discharge curves at a gauge
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1 package de.intevation.flys.artifacts;
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2
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3 import java.util.ArrayList;
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4 import java.util.List;
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5
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6 import de.intevation.artifactdatabase.state.State;
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7
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8 /**
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9 * A abstract baseclass for Artifacts which are using only one static state.
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10 *
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11 * This class is intended to be used without the config/stateengine to generate
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12 * the static state.
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13 *
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14 * @author <a href="mailto:bjoern.ricks@intevation.de">Björn Ricks</a>
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15 */
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16 public abstract class AbstractStaticStateArtifact extends StaticFLYSArtifact {
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17
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18 private transient State staticstate;
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19
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20 /**
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21 * Get a list containing the one and only State.
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22 * @param context ignored.
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23 * @return list with one and only state.
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24 */
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25 @Override
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26 protected List<State> getStates(Object context) {
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27 ArrayList<State> states = new ArrayList<State>();
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28 states.add(getStaticState());
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29 return states;
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30 }
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31
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32
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33 /**
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34 * Get the "current" state.
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35 * @param cc ignored.
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36 * @return always the set static state.
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37 */
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38 @Override
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39 public State getCurrentState(Object cc) {
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40 return getStaticState();
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41 }
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42
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43 /**
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44 * A child class must override this method to set its static state
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45 */
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46 protected abstract void initStaticState();
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47
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48 protected void setStaticState(State state) {
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49 this.staticstate = state;
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50 }
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51
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52 protected State getStaticState() {
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53 if (staticstate == null) {
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54 initStaticState();
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55 }
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56 return staticstate;
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57 }
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58
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59 /**
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60 * Get the state.
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61 * @param context ignored.
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62 * @param stateID ignored.
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63 * @return the state.
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64 */
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65 @Override
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66 protected State getState(Object context, String stateID) {
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67 return getStaticState();
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68 }
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69 }
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