ingo@301: package de.intevation.flys.artifacts.model;
ingo@301: 
felix@1031: import java.math.BigDecimal;
felix@1031: 
ingo@301: import java.util.List;
sascha@644: import java.util.Iterator;
ingo@301: 
ingo@315: import de.intevation.flys.backend.SessionHolder;
ingo@301: import de.intevation.flys.model.Annotation;
ingo@301: import de.intevation.flys.model.Range;
ingo@301: import de.intevation.flys.model.River;
ingo@301: 
ingo@301: import org.hibernate.Session;
ingo@301: import org.hibernate.Query;
ingo@301: 
ingo@301: /**
ingo@301:  * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
ingo@301:  */
ingo@301: public class AnnotationsFactory {
ingo@301: 
ingo@301:     public static List<Annotation> getAnnotations(River river) {
ingo@301:         return getAnnotations(river.getName());
ingo@301:     }
ingo@301: 
ingo@301: 
felix@1031:     /**
felix@1031:      * Get Annotations which do not have a "b" ("to")-value set.
felix@1031:      *
felix@1031:      * @param river name of the river of interest.
felix@1031:      *
felix@1031:      * @return List of Annotations for river which have only "a" ("from")
felix@1031:      *          value set.
felix@1031:      */
felix@1031:     public static List<Annotation> getPointAnnotations(String river) {
felix@1031:         Session session = SessionHolder.HOLDER.get();
felix@1031: 
felix@1031:         Query rangesQuery = session.createQuery(
felix@1031:             "from Range where river.name=:name and b = null");
felix@1031:         rangesQuery.setParameter("name", river);
felix@1031:         List<Range> ranges = rangesQuery.list();
felix@1031: 
felix@1031:         Query query = session.createQuery(
felix@1031:             "from Annotation where range in (:ranges) order by range.a");
felix@1031:         query.setParameterList("ranges", ranges);
felix@1031:         return query.list();
felix@1031:     }
felix@1031: 
felix@1031: 
ingo@301:     public static List<Annotation> getAnnotations(String river) {
sascha@311:         Session session = SessionHolder.HOLDER.get();
ingo@301: 
sascha@311:         Query rangesQuery = session.createQuery(
sascha@311:             "from Range where river.name=:name");
sascha@311:         rangesQuery.setParameter("name", river);
sascha@311:         List<Range> ranges = rangesQuery.list();
ingo@301: 
sascha@311:         Query query = session.createQuery(
ingo@332:             "from Annotation where range in (:ranges) order by range.a");
sascha@311:         query.setParameterList("ranges", ranges);
sascha@311:         return query.list();
ingo@301:     }
sascha@644: 
sascha@644: 
felix@1031:     /**
felix@1031:      * Get minimal "a" ("from") and maximal "b" ("to") value of annotations'
felix@1031:      * ranges of a river.
felix@1031:      *
felix@1031:      * @param river name of the river of interest.
felix@1031:      *
felix@1031:      * @return Array containing minimal "a" and max "b" value of any
felix@1031:      *         annotation stored for the given river.
felix@1031:      */
felix@1031:     public static double[] getAnnotationsBreadth(String river) {
felix@1031:         Session session = SessionHolder.HOLDER.get();
felix@1031: 
felix@1031:         Query minAQuery = session.createQuery(
felix@1031:             "select min(a), max(b) from Range where river.name=:name");
felix@1031:         minAQuery.setParameter("name", river);
felix@1031: 
felix@1031:         double[] minAmaxB = {0.0f, 0.0f};
felix@1031:         Object[] row = (Object[]) minAQuery.list().iterator().next();
felix@1031:         minAmaxB[0] = ((BigDecimal) row[0]).doubleValue();
felix@1031:         minAmaxB[1] = ((BigDecimal) row[1]).doubleValue();
felix@1031:         return minAmaxB;
felix@1031:     }
felix@1031: 
felix@1031: 
sascha@644:     public static Iterator<Annotation> getAnnotationsIterator(String river) {
sascha@644:         Session session = SessionHolder.HOLDER.get();
sascha@644: 
sascha@644:         Query rangesQuery = session.createQuery(
sascha@644:             "from Range where river.name=:name");
sascha@644:         rangesQuery.setParameter("name", river);
sascha@644:         List<Range> ranges = rangesQuery.list();
sascha@644: 
sascha@644:         Query query = session.createQuery(
sascha@644:             "from Annotation where range in (:ranges) order by range.a");
sascha@644:         query.setParameterList("ranges", ranges);
sascha@644:         return (Iterator<Annotation>)query.iterate();
sascha@644:     }
ingo@301: }
ingo@301: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :