TagParticipationCatcher.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2021 Lluis Turró Cutiller <http://www.turro.org/>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
package org.turro.activity;
 
import org.turro.elephant.db.ElephantPU;
import org.turro.elephant.db.WhereClause;
import org.turro.elephant.entities.db.Tag;
import org.turro.entities.Entities;
import org.turro.jpa.Dao;
import org.turro.path.Path;
 
@ParticipationCatcher
public class TagParticipationCatcher extends JpaParticipationCatcher<Tag> {
 
  @Override
  public String getDescription() {
    return "Elephant Commons - Tag";
  }
 
  @Override
  public Dao createDao() {
    return new ElephantPU();
  }
 
  @Override
  public WhereClause getQuery(Path entityPath) {
    WhereClause wc = new WhereClause();
    wc.addClause("select distinct t from Tag t");
    wc.addClause("where t.entityPath = :path");
    wc.addNamedValue("path", entityPath.getPath());
    return wc;
  }
 
  @Override
  public boolean getCanDelete(Tag v) {
    return true;
  }
 
  @Override
  public String getDescription(Tag v) {
    return v.getTagName();
  }
 
  @Override
  public void doDelete(Tag v) {
    getDao().deleteObject(v);
  }
 
  @Override
  public void doShow(Tag v) {
    // nothing to show?
  }
  
  @Override
  public void onChange(Object entity) {
    // do nothing
  }
  
  @Override
  public void onDelete(Object entity) {
    // do nothing
  }
 
  @Override
  public boolean getCanChangeFor(Tag v) {
    return false;
  }
 
  @Override
  public void doChangeFor(Tag v, Path toPath) {
    // do nothing
  }
  
  @Override
  public Object getReferringEntity(Tag v) {
    return Entities.getController(v.getEntityPath()).getEntity();
  }
  
}