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.Session;
import org.hibernate.Query;
import org.hibernate.annotations.Type;

import com.vividsolutions.jts.geom.Polygon;

import de.intevation.flys.backend.SessionHolder;


@Entity
@Table(name = "catchment")
public class Catchment
implements   Serializable
{
    private Integer    id;
    private BigDecimal area;
    private String     name;
    private River      river;
    private Polygon    geom;

    public Catchment() {
    }


    @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 = "area")
    public BigDecimal getArea() {
        return area;
    }


    public void setArea(BigDecimal area) {
        this.area = area;
    }


    @Column(name = "geom")
    @Type(type = "org.hibernatespatial.GeometryUserType")
    public Polygon getGeom() {
        return geom;
    }


    public void setGeom(Polygon geom) {
        this.geom = geom;
    }


    public static List<Catchment> getCatchments(int riverId) {
        Session session = SessionHolder.HOLDER.get();

        Query query = session.createQuery(
            "from Catchment where river.id =:river_id");
        query.setParameter("river_id", riverId);

        return query.list();
    }
}
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