ingo@1230: package de.intevation.flys.model;
ingo@1230: 
ingo@1230: import java.io.Serializable;
ingo@1230: import java.math.BigDecimal;
ingo@1235: import java.util.List;
ingo@1230: 
ingo@1230: import javax.persistence.Column;
ingo@1230: import javax.persistence.Entity;
ingo@1230: import javax.persistence.Id;
ingo@1230: import javax.persistence.JoinColumn;
ingo@1230: import javax.persistence.OneToOne;
ingo@1230: import javax.persistence.Table;
ingo@1230: 
ingo@1235: import org.hibernate.Query;
ingo@1235: import org.hibernate.Session;
ingo@1230: import org.hibernate.annotations.Type;
ingo@1230: 
ingo@1230: import com.vividsolutions.jts.geom.LineString;
ingo@1230: 
ingo@1235: import de.intevation.flys.backend.SessionHolder;
ingo@1235: 
ingo@1230: 
ingo@1230: @Entity
ingo@1230: @Table(name = "cross_section_tracks")
ingo@1230: public class CrossSectionTrack
ingo@1230: implements   Serializable
ingo@1230: {
ingo@1230:     private Integer    id;
ingo@1230:     private River      river;
ingo@1230:     private LineString geom;
ingo@1230:     private BigDecimal km;
ingo@1230:     private BigDecimal z;
ingo@1230: 
ingo@1230:     public CrossSectionTrack() {
ingo@1230:     }
ingo@1230: 
ingo@1230: 
ingo@1230:     @Id
ingo@1230:     @Column(name = "id")
ingo@1230:     public Integer getId() {
ingo@1230:         return id;
ingo@1230:     }
ingo@1230: 
ingo@1230: 
ingo@1230:     public void setId(Integer id) {
ingo@1230:         this.id = id;
ingo@1230:     }
ingo@1230: 
ingo@1230: 
ingo@1230:     @OneToOne
ingo@1230:     @JoinColumn(name = "river_id")
ingo@1230:     public River getRiver() {
ingo@1230:         return river;
ingo@1230:     }
ingo@1230: 
ingo@1230: 
ingo@1230:     public void setRiver(River river) {
ingo@1230:         this.river = river;
ingo@1230:     }
ingo@1230: 
ingo@1230: 
ingo@1230:     @Column(name = "geom")
ingo@1230:     @Type(type = "org.hibernatespatial.GeometryUserType")
ingo@1230:     public LineString getGeom() {
ingo@1230:         return geom;
ingo@1230:     }
ingo@1230: 
ingo@1230: 
ingo@1230:     public void setGeom(LineString geom) {
ingo@1230:         this.geom = geom;
ingo@1230:     }
ingo@1230: 
ingo@1230: 
ingo@1230:     @Column(name = "km")
ingo@1230:     public BigDecimal getKm() {
ingo@1230:         return km;
ingo@1230:     }
ingo@1230: 
ingo@1230: 
ingo@1230:     public void setKm(BigDecimal km) {
ingo@1230:         this.km = km;
ingo@1230:     }
ingo@1230: 
ingo@1230: 
ingo@1230:     @Column(name = "z")
ingo@1230:     public BigDecimal getZ() {
ingo@1230:         return z;
ingo@1230:     }
ingo@1230: 
ingo@1230: 
ingo@1230:     public void setZ(BigDecimal z) {
ingo@1230:         this.z = z;
ingo@1230:     }
ingo@1235: 
ingo@1235: 
ingo@1235:     public static List<CrossSectionTrack> getCrossSectionTrack(
ingo@1235:         String river)
ingo@1235:     {
ingo@1235:         Session session = SessionHolder.HOLDER.get();
ingo@1235: 
ingo@1235:         Query query = session.createQuery(
ingo@1235:             "from CrossSectionTrack where river.name =:river");
ingo@1235:         query.setParameter("river", river);
ingo@1235: 
ingo@1235:         return query.list();
ingo@1235:     }
ingo@2341: 
ingo@2341: 
ingo@2341:     /**
ingo@2341:      * Returns the nearest CrossSectionTrack of <i>river</i> to a given
ingo@2341:      * <i>km</i>.
ingo@2341:      *
ingo@2341:      * @param river The name of a river.
ingo@2341:      * @param km The kilometer value.
ingo@2341:      *
ingo@2341:      * @return the nearest CrossSectionTrack to <i>km</i> of river <i>river</i>.
ingo@2341:      */
ingo@2341:     public static CrossSectionTrack getCrossSectionTrack(
ingo@2341:         String river,
ingo@2341:         double km
ingo@2341:     ) {
ingo@2341:         Session session = SessionHolder.HOLDER.get();
ingo@2341: 
ingo@2341:         Query query = session.createQuery(
ingo@2341:             "from CrossSectionTrack where river.name =:river " +
ingo@2341:             "order by abs( km - :mykm)");
ingo@2341:         query.setParameter("river", river);
ingo@2341:         query.setParameter("mykm", new BigDecimal(km));
ingo@2341: 
ingo@2341:         List<CrossSectionTrack> cst = query.list();
ingo@2341: 
ingo@2341:         return cst != null && !cst.isEmpty() ? cst.get(0) : null;
ingo@2341:     }
ingo@1230: }
ingo@1230: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :