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annotate artifact-database/src/main/java/de/intevation/artifactdatabase/state/StateEngine.java @ 104:26bfff409dd3

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Added interfaces and engines used in concrete artifact packages. artifacts/trunk@1289 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Thu, 03 Feb 2011 18:00:41 +0000
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children ece0fdb07975
rev   line source
104
26bfff409dd3 Added interfaces and engines used in concrete artifact packages.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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1 package de.intevation.artifactdatabase.state;
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2
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3 import java.util.HashMap;
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4 import java.util.List;
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5 import java.util.Map;
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6
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7 import org.apache.log4j.Logger;
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8
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9 /**
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10 * The StateEngine stores all states for each Artifact.
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11 *
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12 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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13 */
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14 public class StateEngine {
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15
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16 /** The logger used in this class. */
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17 private static Logger logger = Logger.getLogger(StateEngine.class);
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18
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19 /**
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20 * A map that contains the states of the artifacts. The key of this map is
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21 * the name of an artifact, its value is a list of all states the artifact
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22 * can reach.
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23 */
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24 protected Map<String, List> states;
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25
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26
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27 /**
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28 * The default constructor.
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29 */
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30 public StateEngine() {
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31 states = new HashMap<String, List>();
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32 }
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33
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34
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35 /**
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36 * Add new states for a specific artifact.
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37 *
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38 * @param artifact The name of the artifact.
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39 * @param states A list of states that the artifact can reach.
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40 *
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41 * @return true, if the states were added, otherwise false.
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42 */
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43 public boolean addStates(String artifact, List states) {
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44 List tmp = this.states.get(artifact);
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45
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46 if (tmp != null) {
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47 logger.info(
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48 "States for the artifact '" + artifact + "' already stored.");
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49
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50 return false;
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51 }
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52
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53 logger.debug("Add new states for the artifact '" + artifact + "'");
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54 return this.states.put(artifact, states) != null;
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55 }
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56 }
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57 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org