Mercurial > dive4elements > river

annotate flys-backend/src/main/java/org/dive4elements/river/importer/ImportEdge.java @ 5829:18619c1e7c2a

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Repaired internal references.
author Sascha L. Teichmann <teichmann@intevation.de>
date Thu, 25 Apr 2013 11:54:36 +0200
parents dfb26b03b179
children
rev   line source
5829
18619c1e7c2a Repaired internal references.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 5828
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1 package org.dive4elements.river.importer;
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2
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18619c1e7c2a Repaired internal references.
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3 import org.dive4elements.river.model.Edge;
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4
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5 import org.hibernate.Session;
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6 import org.hibernate.Query;
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7
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8 import java.util.List;
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9
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10 import java.math.BigDecimal;
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11
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12 public class ImportEdge
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13 implements Comparable<ImportEdge>
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14 {
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15 protected BigDecimal top;
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16 protected BigDecimal bottom;
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17
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18 protected Edge peer;
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19
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20 public ImportEdge() {
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21 }
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22
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23 public ImportEdge(BigDecimal top, BigDecimal bottom) {
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24 this.top = top;
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25 this.bottom = bottom;
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26 }
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27
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28 public BigDecimal getTop() {
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29 return top;
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30 }
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31
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32 public void setTop(BigDecimal top) {
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33 this.top = top;
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34 }
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35
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36 public BigDecimal getBottom() {
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37 return bottom;
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38 }
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39
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40 public void setBottom(BigDecimal bottom) {
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41 this.bottom = bottom;
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42 }
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43
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44 private static final int compare(BigDecimal a, BigDecimal b) {
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45 if (a == null && b != null) return -1;
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46 if (a != null && b == null) return +1;
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47 if (a == null && b == null) return 0;
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48 return a.compareTo(b);
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49 }
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50
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51 public int compareTo(ImportEdge other) {
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52 int cmp = compare(top, other.top);
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53 return cmp != 0 ? cmp : compare(bottom, other.bottom);
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54 }
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55
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56 public Edge getPeer() {
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57 if (peer == null) {
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58 Session session = ImporterSession.getInstance().getDatabaseSession();
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59 Query query = session.createQuery(
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60 "from Edge where top=:top and bottom=:bottom");
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61 query.setParameter("top", top);
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62 query.setParameter("bottom", bottom);
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63 List<Edge> edges = query.list();
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64 if (edges.isEmpty()) {
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65 peer = new Edge(top, bottom);
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66 session.save(peer);
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67 }
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68 else {
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69 peer = edges.get(0);
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70 }
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71 }
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72 return peer;
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73 }
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74 }
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75 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org