Java tutorial
/******************************************************************************* * Gisgraphy Project * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA * * Copyright 2008 Gisgraphy project * David Masclet <davidmasclet@gisgraphy.com> * * *******************************************************************************/ package com.gisgraphy.domain.repository; import java.util.List; import javax.persistence.PersistenceException; import org.hibernate.Query; import org.hibernate.Session; import org.springframework.orm.hibernate3.HibernateCallback; import org.springframework.stereotype.Repository; import org.springframework.util.Assert; import com.gisgraphy.domain.geoloc.entity.GisFeature; import com.gisgraphy.domain.valueobject.GisFeatureDistance; import com.vividsolutions.jts.geom.Point; /** * A data access object for {@link GisFeature} * * @author <a href="mailto:david.masclet@gisgraphy.com">David Masclet</a> */ @Repository public class GisFeatureDao extends GenericGisDao<GisFeature> implements IGisFeatureDao { /** * Default Constructor */ public GisFeatureDao() { super(GisFeature.class); } /* * (non-Javadoc) * * @see com.gisgraphy.domain.repository.IGisFeatureDao#listAllFeaturesFromText(java.lang.String, * boolean) */ public List<GisFeature> listAllFeaturesFromText(String name, boolean includeAlternateNames) { return listFromText(name, includeAlternateNames, null); } /* * (non-Javadoc) * * @see com.gisgraphy.domain.repository.IGisFeatureDao#getNearestAndDistanceFrom(com.gisgraphy.domain.geoloc.entity.GisFeature, * double, int, int, java.lang.Class) */ public List<GisFeatureDistance> getNearestAndDistanceFromGisFeature(GisFeature gisFeature, double distance, int firstResult, int maxResults, boolean includeDistanceField, Class<? extends GisFeature> requiredClass, boolean isMunicipality) { Assert.notNull(gisFeature, "can not get nearest for a null gisFeature"); return getNearestAndDistanceFrom(gisFeature.getLocation(), gisFeature.getId(), distance, firstResult, maxResults, includeDistanceField, requiredClass, isMunicipality); } /* * (non-Javadoc) * * @see com.gisgraphy.domain.repository.IGisFeatureDao#getNearestAndDistanceFrom(com.gisgraphy.domain.geoloc.entity.GisFeature, * double, java.lang.Class) */ public List<GisFeatureDistance> getNearestAndDistanceFromGisFeature(GisFeature gisFeature, double distance, boolean includeDistanceField, Class<? extends GisFeature> requiredClass) { Assert.notNull(gisFeature, "can not get nearest for a null gisFeature"); return getNearestAndDistanceFromGisFeature(gisFeature, distance, -1, -1, includeDistanceField, requiredClass, false); } /* * (non-Javadoc) * * @see com.gisgraphy.domain.repository.IGisFeatureDao#getNearestAndDistanceFrom(com.vividsolutions.jts.geom.Point, * double, int, int, java.lang.Class) */ public List<GisFeatureDistance> getNearestAndDistanceFrom(Point point, double distance, int firstResult, int maxResults, boolean includeDistanceField, Class<? extends GisFeature> requiredClass) { return getNearestAndDistanceFrom(point, 0L, distance, firstResult, maxResults, includeDistanceField, requiredClass, false); } /* * (non-Javadoc) * * @see com.gisgraphy.domain.repository.IGisFeatureDao#getNearestAndDistanceFrom(com.vividsolutions.jts.geom.Point, * double, java.lang.Class) */ public List<GisFeatureDistance> getNearestAndDistanceFrom(Point point, double distance, boolean includeDistanceField, Class<? extends GisFeature> requiredClass) { return getNearestAndDistanceFrom(point, distance, -1, -1, includeDistanceField, requiredClass); } /* * (non-Javadoc) * * @see com.gisgraphy.domain.repository.IGisFeatureDao#deleteAllExceptAdms() */ public int deleteAllExceptAdmsAndCountries() { return ((Integer) this.getHibernateTemplate().execute(new HibernateCallback() { public Object doInHibernate(Session session) throws PersistenceException { String queryString = "delete from " + persistentClass.getSimpleName() + " as g where (g.featureCode NOT IN ('ADM1','ADM2','ADM3','ADM4') OR g.featureCode is null) AND g.featureId NOT IN (select featureId from Country) "; Query qry = session.createQuery(queryString); // Need to flush to avoid optimisticLock exception session.flush(); session.clear(); qry.setCacheable(false); return Integer.valueOf(qry.executeUpdate()); } })).intValue(); } /* (non-Javadoc) * @see com.gisgraphy.domain.repository.IGisFeatureDao#getMaxFeatureId() */ public long getMaxFeatureId() { return (Long) this.getHibernateTemplate().execute(new HibernateCallback() { public Object doInHibernate(Session session) throws PersistenceException { String queryString = "select max(featureId) from " + GisFeature.class.getSimpleName(); Query qry = session.createQuery(queryString); qry.setCacheable(true); Long count = (Long) qry.uniqueResult(); return count == null ? 0 : count; } }); } }