Java tutorial
package org.sigmah.server.domain; /* * #%L * Sigmah * %% * Copyright (C) 2010 - 2016 URD * %% * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public * License along with this program. If not, see * <http://www.gnu.org/licenses/gpl-3.0.html>. * #L% */ import java.util.Date; import java.util.HashSet; import java.util.Set; import javax.persistence.CascadeType; import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.FetchType; import javax.persistence.GeneratedValue; import javax.persistence.GenerationType; import javax.persistence.Id; import javax.persistence.JoinColumn; import javax.persistence.JoinTable; import javax.persistence.ManyToMany; import javax.persistence.ManyToOne; import javax.persistence.OneToMany; import javax.persistence.PrePersist; import javax.persistence.PreUpdate; import javax.persistence.Table; import javax.persistence.Temporal; import javax.persistence.TemporalType; import javax.validation.constraints.NotNull; import javax.validation.constraints.Size; import org.apache.commons.lang3.builder.ToStringBuilder; import org.sigmah.server.domain.base.AbstractEntityId; import org.sigmah.server.domain.util.EntityConstants; /** * <p> * Location domain entity. * </p> * <p> * A location corresponds to a site in Sigmah. An indicator needs a site in order to have a value. A site corresponds to * a place in the world. These informations are set with the Google Maps panel and has some geographical coordinates. * </p> * * @author Alex Bertram * @author Denis Colliot (dcolliot@ideia.fr) */ @Entity @Table(name = EntityConstants.LOCATION_TABLE) public class Location extends AbstractEntityId<Integer> { /** * Serial version UID. */ private static final long serialVersionUID = 4928884549525700609L; @Id @GeneratedValue(strategy = GenerationType.AUTO) @Column(name = EntityConstants.LOCATION_COLUMN_ID, unique = true, nullable = false) private Integer id; /** * This is the Guid of the location.<br/> * This column is not used in Sigmah. */ @Column(name = EntityConstants.LOCATION_COLUMN_LOCATION_GUID, length = EntityConstants.LOCATION_GUID_MAX_LENGTH) @Size(max = EntityConstants.LOCATION_GUID_MAX_LENGTH) private String locationGuid; @Column(name = EntityConstants.LOCATION_COLUMN_X, precision = EntityConstants.LOCATION_COORDINATE_PRECISION, scale = EntityConstants.LOCATION_COORDINATE_SCALE) private Double x; @Column(name = EntityConstants.LOCATION_COLUMN_Y, precision = EntityConstants.LOCATION_COORDINATE_PRECISION, scale = EntityConstants.LOCATION_COORDINATE_SCALE) private Double y; @Column(name = EntityConstants.LOCATION_COLUMN_NAME, nullable = false, length = EntityConstants.NAME_MAX_LENGTH) @NotNull @Size(max = EntityConstants.NAME_MAX_LENGTH) private String name; /** * Name of the nearest road or waterway. */ @Column(name = EntityConstants.LOCATION_COLUMN_AXE, length = EntityConstants.NAME_MAX_LENGTH) @Size(max = EntityConstants.NAME_MAX_LENGTH) private String axe; @Column(name = EntityConstants.COLUMN_DATE_CREATED) @Temporal(TemporalType.TIMESTAMP) private Date dateCreated; @Column(name = EntityConstants.COLUMN_DATE_EDITED) @Temporal(TemporalType.TIMESTAMP) private Date dateEdited; // -------------------------------------------------------------------------------- // // FOREIGN KEYS. // // -------------------------------------------------------------------------------- @ManyToOne(fetch = FetchType.LAZY) @JoinColumn(name = EntityConstants.LOCATION_TYPE_COLUMN_ID, nullable = false) @NotNull private LocationType locationType; @OneToMany(mappedBy = "location", cascade = CascadeType.ALL, fetch = FetchType.LAZY) private Set<Site> sites = new HashSet<Site>(0); @ManyToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY) @JoinTable(name = EntityConstants.LOCATION_ADMIN_ENTITY_LINK_TABLE, joinColumns = { @JoinColumn(name = EntityConstants.LOCATION_COLUMN_ID, nullable = false, updatable = false) }, inverseJoinColumns = { @JoinColumn(name = EntityConstants.ADMIN_ENTITY_COLUMN_ID, nullable = false, updatable = false) }) private Set<AdminEntity> adminEntities = new HashSet<AdminEntity>(0); // -------------------------------------------------------------------------------- // // METHODS. // // -------------------------------------------------------------------------------- public Location() { // Default empty constructor. } public void setAdminEntity(Integer levelId, AdminEntity newEntity) { for (final AdminEntity entity : getAdminEntities()) { if (entity.getLevel().getId().equals(levelId)) { if (newEntity == null) { getAdminEntities().remove(entity); } else if (!newEntity.getId().equals(entity.getId())) { getAdminEntities().remove(entity); getAdminEntities().add(newEntity); } return; } } if (newEntity != null) { getAdminEntities().add(newEntity); } } @PrePersist public void onCreate() { final Date now = new Date(); setDateCreated(now); setDateEdited(now); } @PreUpdate public void onUpdate() { setDateEdited(new Date()); } /** * {@inheritDoc} */ @Override public void appendToString(final ToStringBuilder builder) { builder.append("name", name); builder.append("locationGuid", locationGuid); builder.append("x", x); builder.append("y", y); builder.append("axe", axe); builder.append("dateCreated", dateCreated); builder.append("dateEdited", dateEdited); } // -------------------------------------------------------------------------------- // // GETTERS & SETTERS. // // -------------------------------------------------------------------------------- @Override public Integer getId() { return this.id; } @Override public void setId(Integer id) { this.id = id; } public LocationType getLocationType() { return this.locationType; } public void setLocationType(LocationType locationType) { this.locationType = locationType; } public String getLocationGuid() { return this.locationGuid; } public void setLocationGuid(String locationGuid) { this.locationGuid = locationGuid; } public Double getX() { return this.x; } public void setX(Double x) { this.x = x; } public Double getY() { return this.y; } public void setY(Double y) { this.y = y; } public String getName() { return this.name; } public void setName(String name) { this.name = name; } public String getAxe() { return this.axe; } public void setAxe(String axe) { this.axe = axe; } public Set<Site> getSites() { return this.sites; } public void setSites(Set<Site> sites) { this.sites = sites; } public Set<AdminEntity> getAdminEntities() { return this.adminEntities; } public void setAdminEntities(Set<AdminEntity> adminEntities) { this.adminEntities = adminEntities; } public Date getDateCreated() { return dateCreated; } public void setDateCreated(Date dateCreated) { this.dateCreated = dateCreated; } public Date getDateEdited() { return dateEdited; } public void setDateEdited(Date dateEdited) { this.dateEdited = dateEdited; } }