Mercurial > dive4elements > river
view flys-backend/src/main/java/de/intevation/flys/model/CrossSectionTrack.java @ 4004:3b79e8afca7e
S(Q) calculate effective width
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Mon, 01 Oct 2012 15:51:55 +0200 |
parents | d42249d91f47 |
children | 88e3473a3846 |
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package de.intevation.flys.model; import java.io.Serializable; import java.math.BigDecimal; import java.util.List; import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.Id; import javax.persistence.JoinColumn; import javax.persistence.OneToOne; import javax.persistence.Table; import org.hibernate.Query; import org.hibernate.Session; import org.hibernate.annotations.Type; import com.vividsolutions.jts.geom.LineString; import de.intevation.flys.backend.SessionHolder; @Entity @Table(name = "cross_section_tracks") public class CrossSectionTrack implements Serializable { private Integer id; private River river; private String name; private LineString geom; private BigDecimal km; private BigDecimal z; public CrossSectionTrack() { } @Id @Column(name = "id") public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } @OneToOne @JoinColumn(name = "river_id") public River getRiver() { return river; } public void setRiver(River river) { this.river = river; } @Column(name = "name") public String getName() { return name; } public void setName(String name) { this.name = name; } @Column(name = "geom") @Type(type = "org.hibernatespatial.GeometryUserType") public LineString getGeom() { return geom; } public void setGeom(LineString geom) { this.geom = geom; } @Column(name = "km") public BigDecimal getKm() { return km; } public void setKm(BigDecimal km) { this.km = km; } @Column(name = "z") public BigDecimal getZ() { return z; } public void setZ(BigDecimal z) { this.z = z; } public static List<CrossSectionTrack> getCrossSectionTrack( String river) { Session session = SessionHolder.HOLDER.get(); Query query = session.createQuery( "from CrossSectionTrack where river.name =:river"); query.setParameter("river", river); return query.list(); } public static List<CrossSectionTrack> getCrossSectionTrack( String river, String name ) { Session session = SessionHolder.HOLDER.get(); Query query = session.createQuery( "from CrossSectionTrack as cst " + " where river.name =:river" + " and cst.name=:name"); query.setParameter("river", river); query.setParameter("name", name); return query.list(); } /** * Returns the nearest CrossSectionTrack of <i>river</i> to a given * <i>km</i>. * * @param river The name of a river. * @param km The kilometer value. * * @return the nearest CrossSectionTrack to <i>km</i> of river <i>river</i>. */ public static CrossSectionTrack getCrossSectionTrack( String river, double km ) { Session session = SessionHolder.HOLDER.get(); Query query = session.createQuery( "from CrossSectionTrack where river.name =:river " + "order by abs( km - :mykm)"); query.setParameter("river", river); query.setParameter("mykm", new BigDecimal(km)); List<CrossSectionTrack> cst = query.list(); return cst != null && !cst.isEmpty() ? cst.get(0) : null; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :