ResourceCombobox.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2011 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.erp.resource;
 
import java.util.LinkedList;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.Query;
import org.turro.elephant.db.SQLHelper;
import org.turro.elephant.db.WhereClause;
import org.turro.erp.db.ErpPU;
import org.turro.erp.entity.Resource;
import org.turro.zkoss.input.GenericCombobox;
 
public class ResourceCombobox extends GenericCombobox<Resource> { 
 
  private boolean onlyActive = true;
  private long contractId;
  
  public boolean isOnlyActive() {
    return onlyActive;
  }
 
  public void setOnlyActive(boolean onlyActive) {
    this.onlyActive = onlyActive;
  }
 
  public long getContractId() {
    return contractId;
  }
 
  public void setContractId(long contractId) {
    this.contractId = contractId;
  }
  
  @Override
  public void populateList(String value, LinkedList list, int nRows) {
    EntityManager em = new ErpPU().getEntityManager();
    try {
      WhereClause wc = SQLHelper.getWhereClause(new String[]{
        "res.name"
      }, value);
      Query q = em.createQuery(
              "select res from Resource res " +
              "where active = :active " + 
              (contractId > 0 ? "and (res.idContract = " + contractId + " or res.idContract == 0) " : "") +
              wc.getClause() +
              " order by res.name"
              );
      wc.addNamedValue("active", onlyActive);
      q.setMaxResults(nRows);
      wc.setNamedParameters(q);
      List<Resource> l = q.getResultList();
      for(Object o : l) {
        list.add(((Resource) o).getName());
      }
    } finally {
      em.close();
    }
  }
 
  @Override
  public String getTextFromObject(Resource value) {
    return value.getName();
  }
 
}