Mercurial > dive4elements > river
comparison flys-backend/src/main/java/org/dive4elements/river/importer/ImportEdge.java @ 5828:dfb26b03b179
Moved directories to org.dive4elements.river
| author | Sascha L. Teichmann <teichmann@intevation.de> |
|---|---|
| date | Thu, 25 Apr 2013 11:53:11 +0200 |
| parents | flys-backend/src/main/java/de/intevation/flys/importer/ImportEdge.java@9f2204ed79ed |
| children | 18619c1e7c2a |
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| 5827:e308d4ecd35a | 5828:dfb26b03b179 |
|---|---|
| 1 package de.intevation.flys.importer; | |
| 2 | |
| 3 import de.intevation.flys.model.Edge; | |
| 4 | |
| 5 import org.hibernate.Session; | |
| 6 import org.hibernate.Query; | |
| 7 | |
| 8 import java.util.List; | |
| 9 | |
| 10 import java.math.BigDecimal; | |
| 11 | |
| 12 public class ImportEdge | |
| 13 implements Comparable<ImportEdge> | |
| 14 { | |
| 15 protected BigDecimal top; | |
| 16 protected BigDecimal bottom; | |
| 17 | |
| 18 protected Edge peer; | |
| 19 | |
| 20 public ImportEdge() { | |
| 21 } | |
| 22 | |
| 23 public ImportEdge(BigDecimal top, BigDecimal bottom) { | |
| 24 this.top = top; | |
| 25 this.bottom = bottom; | |
| 26 } | |
| 27 | |
| 28 public BigDecimal getTop() { | |
| 29 return top; | |
| 30 } | |
| 31 | |
| 32 public void setTop(BigDecimal top) { | |
| 33 this.top = top; | |
| 34 } | |
| 35 | |
| 36 public BigDecimal getBottom() { | |
| 37 return bottom; | |
| 38 } | |
| 39 | |
| 40 public void setBottom(BigDecimal bottom) { | |
| 41 this.bottom = bottom; | |
| 42 } | |
| 43 | |
| 44 private static final int compare(BigDecimal a, BigDecimal b) { | |
| 45 if (a == null && b != null) return -1; | |
| 46 if (a != null && b == null) return +1; | |
| 47 if (a == null && b == null) return 0; | |
| 48 return a.compareTo(b); | |
| 49 } | |
| 50 | |
| 51 public int compareTo(ImportEdge other) { | |
| 52 int cmp = compare(top, other.top); | |
| 53 return cmp != 0 ? cmp : compare(bottom, other.bottom); | |
| 54 } | |
| 55 | |
| 56 public Edge getPeer() { | |
| 57 if (peer == null) { | |
| 58 Session session = ImporterSession.getInstance().getDatabaseSession(); | |
| 59 Query query = session.createQuery( | |
| 60 "from Edge where top=:top and bottom=:bottom"); | |
| 61 query.setParameter("top", top); | |
| 62 query.setParameter("bottom", bottom); | |
| 63 List<Edge> edges = query.list(); | |
| 64 if (edges.isEmpty()) { | |
| 65 peer = new Edge(top, bottom); | |
| 66 session.save(peer); | |
| 67 } | |
| 68 else { | |
| 69 peer = edges.get(0); | |
| 70 } | |
| 71 } | |
| 72 return peer; | |
| 73 } | |
| 74 } | |
| 75 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |