taskusebean_1.java~

J2EE & Tomcat books published by hope

/*
 */

package com.sun.j2ee.workflow.control.web;

import java.util.Collection;

import com.sun.j2ee.workflow.util.JNDINames;
import com.sun.j2ee.workflow.task.model.TaskModel;
import com.sun.j2ee.workflow.task.dao.TaskDAOImpl;
import com.sun.j2ee.workflow.task.exceptions.*;
import com.sun.j2ee.workflow.control.exceptions.GeneralFailureException;
import com.sun.j2ee.workflow.control.exceptions.WorkflowAppException;

import com.sun.j2ee.workflow.util.Debug;

/**
 * This class is the web-tier representation of the task.
 */
public class TaskUseBean implements java.io.Serializable {

    private TaskModel task = null;
    private boolean cached = false;
    public TaskUseBean() {}
    
    public TaskModel getTask(String task_ID) {
      if (cached==false)
       {
          try {
           TaskDAOImpl taskDa = new TaskDAOImpl();
           String task_id = taskDa.findByPrimaryKey(task_ID);
           Debug.println("found task id: "+task_id);
           task = taskDa.load(task_id);
           //account = cust.getDetails();
            } catch (TaskDAOFinderException fe) {
                throw new GeneralFailureException("Unable to find the password details for task " );
            } catch (TaskDAOSysException se) {
            Debug.println("found TaskDAOSysException se" + se.toString());
            }
            return task;
        }   
        else
        {
            task = loadFromCache(task_ID);
            return task;
        }
}

    public Collection getTaskByName(String task_name) {
        Collection tasks = null;  
        try {
           TaskDAOImpl taskDa = new TaskDAOImpl();
           tasks = taskDa.findByName(task_name);
           Debug.println("found task id: "+task_name);
            } catch (TaskDAOFinderException fe) {
                throw new GeneralFailureException("Unable to find the task by name " +task_name );
            } catch (TaskDAOSysException se) {
            Debug.println("found TaskDAOSysException se" + se.toString());
            }
            return tasks;
        }   

    public Collection getTaskList() {
        Collection tasks = null;  
        try {
           TaskDAOImpl taskDa = new TaskDAOImpl();
           tasks = taskDa.findAll();
            } catch (TaskDAOFinderException fe) {
                throw new GeneralFailureException("Unable to find all task by name ");
            } catch (TaskDAOSysException se) {
            Debug.println("found TaskDAOSysException se" + se.toString());
            }
            return tasks;
        } 

    public Collection getTaskByProject(String proj_name) {
        Collection tasks = null;  
        try {
           TaskDAOImpl taskDa = new TaskDAOImpl();
           tasks = taskDa.findByField("project", proj_name);
            } catch (TaskDAOFinderException fe) {
                throw new GeneralFailureException("Unable to find all task by name ");
            } catch (TaskDAOSysException se) {
            Debug.println("found TaskDAOSysException se" + se.toString());
            }
            return tasks;
        } 

    public Collection getTaskByStatus(String status) {
        Collection tasks = null;  
        try {
           TaskDAOImpl taskDa = new TaskDAOImpl();
           tasks = taskDa.findByField("status", status);
            } catch (TaskDAOFinderException fe) {
                throw new GeneralFailureException("Unable to find all task by name ");
            } catch (TaskDAOSysException se) {
            Debug.println("found TaskDAOSysException se" + se.toString());
            }
            return tasks;
        }         

    public Collection getTaskByType(String type) {
        Collection tasks = null;  
        try {
           TaskDAOImpl taskDa = new TaskDAOImpl();
           tasks = taskDa.findByField("type", type);
            } catch (TaskDAOFinderException fe) {
                throw new GeneralFailureException("Unable to find all task by name ");
            } catch (TaskDAOSysException se) {
            Debug.println("found TaskDAOSysException se" + se.toString());
            }
            return tasks;
        }         
  public Collection getTaskByField(String field, String key) {
        Collection tasks = null;  
        try {
           TaskDAOImpl taskDa = new TaskDAOImpl();
           tasks = taskDa.findByField(field, key);
            } catch (TaskDAOFinderException fe) {
                throw new GeneralFailureException("Unable to find all task by name ");
            } catch (TaskDAOSysException se) {
            Debug.println("found TaskDAOSysException se" + se.toString());
            }
            return tasks;
        }         
    
    private TaskModel loadFromCache(String task_ID)
    {
        TaskModel task = null; //need to be implemented
        return task;
    }
}