RenderPathOnDemand.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.jpa.grid;
 
import org.turro.entities.Entities;
import org.turro.entities.IElephantEntity;
import org.zkoss.zul.Group;
import org.zkoss.zul.Row;
import org.zkoss.zul.RowRenderer;
 
public abstract class RenderPathOnDemand implements RowRenderer {
 
  @Override
  public void render(Row row, Object data, int index) throws Exception {
    if(data instanceof String) {
      IElephantEntity iee = Entities.getController(data);
      if(row instanceof Group) {
        renderGroup((Group) row, iee);
      } else {
       renderRow(row, iee);
      }
    }
  }
 
  protected void renderGroup(Group group, IElephantEntity entity) {
    group.setLabel(entity.getLabel());
  }
  
  protected abstract void renderRow(Row row, IElephantEntity entity);
  
}