contractqueryviewmodel.java

dorado 展现中间件是一款企业级的商用AJAX平台软件

package sample.complex.contract;

import com.bstek.dorado.data.Dataset;
import com.bstek.dorado.data.ParameterSet;
import com.bstek.dorado.data.db.DBStatement;
import com.bstek.dorado.view.DefaultViewModel;

/**
 * ContractQueryViewModel
 */
public class ContractQueryViewModel
    extends DefaultViewModel {
  public void deleteContract(ParameterSet parameters,
                             ParameterSet outParameters)
      throws Exception {
    DBStatement stDelItems = new DBStatement();
    try {
      stDelItems.setSql(DBStatement.DELETE, "contract_items");

      Dataset datasetContract = getDataset("datasetContract");
      if (datasetContract.getCurrent() != null) {
        stDelItems.parameters().setString(
            "contract_no", datasetContract.getString("contract_no"));
        stDelItems.execute();
        datasetContract.deleteRecord();
      }
    }
    finally {
      stDelItems.close();
    }
    super.doUpdateData(parameters, outParameters);
  }

}