Examples of org.apache.torque.util.Criteria

org.apache.torque.util.Criteria
This is a utility class that is used for retrieving different types of values from a hashtable based on a simple name string. This class is meant to minimize the amount of casting that needs to be done when working with Hashtables. NOTE: other methods will be added as needed and as time permits. @author Frank Y. Kim @author John D. McNally @author Brett McLaughlin @author Eric Dobbs @author Henning P. Schmiedehausen @author Sam Joseph @author Martin Poeschl @author Thomas Fischer @author Scott Eade @version $Id: Criteria.java 332758 2005-11-12 11:15:21Z tfischer $

     * @return the Criteria
     */
    public static Criteria buildCriteria(User user)
    {
        Hashtable permData = (Hashtable) user.getPermStorage().clone();
        Criteria criteria = new Criteria();
        if (!((Persistent) user).isNew())
        {
            criteria.add(USER_ID, ((Persistent) user).getPrimaryKey());
        }


        for (int i = 1; i < TurbineUserPeer.columnNames.length; i++)
        {
            if (permData.containsKey(TurbineUserPeer.columnNames[i]))
            {
                criteria.add(TurbineUserPeer.criteriaKeys[i],
                        permData.remove(TurbineUserPeer.columnNames[i]));
            }
        }
        criteria.add(TurbineUserPeer.OBJECT_DATA, permData);
        return criteria;
    }

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     * @exception TorqueException a generic exception.
     */
    public static void doUpdate(Criteria criteria)
        throws TorqueException
    {
        Criteria selectCriteria = new Criteria(2);
        selectCriteria.put(USER_ID, criteria.remove(USER_ID));
        BasePeer.doUpdate(selectCriteria, criteria);
    }

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     * @throws Exception a generic exception.
     */
    public static boolean checkExists(User user)
        throws DataBackendException, Exception
    {
        Criteria criteria = new Criteria();
        criteria.addSelectColumn(USER_ID);
        criteria.add(USERNAME, user.getName());
        List results = BasePeer.doSelect(criteria);
        if (results.size() > 1)
        {
            throw new DataBackendException("Multiple users named '"
                    + user.getName() + "' exist!");

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     * @exception Exception a generic exception.
     */
    public static List selectAllUsers()
        throws Exception
    {
        Criteria criteria = new Criteria();
        criteria.addAscendingOrderByColumn(TurbineUserPeer.LAST_NAME);
        criteria.addAscendingOrderByColumn(TurbineUserPeer.FIRST_NAME);
        criteria.setIgnoreCase(true);
        return TurbineUserPeer.doSelect(criteria);
    }

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     * @exception Exception a generic exception.
     */
    public static List selectAllConfirmedUsers()
        throws Exception
    {
        Criteria criteria = new Criteria();
        criteria.add(User.CONFIRM_VALUE, User.CONFIRM_DATA);
        criteria.addAscendingOrderByColumn(TurbineUserPeer.LAST_NAME);
        criteria.addAscendingOrderByColumn(TurbineUserPeer.FIRST_NAME);
        criteria.setIgnoreCase(true);
        return TurbineUserPeer.doSelect(criteria);
    }

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     * @param role_id An int with the role id.
     * @exception Exception a generic exception.
     */
    public static void deleteRole(int role_id) throws Exception
    {
        Criteria criteria = new Criteria();
        criteria.add(ROLE_ID, role_id);
        doDelete(criteria);
    }

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     * @param permission_id An int with the permission id.
     * @exception Exception a generic exception.
     */
    public static void deletePermission(int permission_id) throws Exception
    {
        Criteria criteria = new Criteria();
        criteria.add(PERMISSION_ID, permission_id);
        doDelete(criteria);
    }

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     * @throws Exception A generic exception.
     */
    public static boolean checkExists(Permission permission)
        throws DataBackendException, Exception
    {
        Criteria criteria = new Criteria();


        criteria.addSelectColumn(getIdColumn());


        criteria.add(getNameColumn(), permission.getName());


        List results = BasePeer.doSelect(criteria);


        if (results.size() > 1)
        {

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     * @exception Exception A generic Exception.
     */
    public static PermissionSet retrieveSet(Role role)
        throws Exception
    {
        Criteria criteria = new Criteria();
        criteria.add(TurbineRolePermissionPeer.ROLE_ID,
                     ((Persistent) role).getPrimaryKey());


        criteria.addJoin(TurbineRolePermissionPeer.PERMISSION_ID,
                         getIdColumn());


        return retrieveSet(criteria);
    }

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     * @return A criteria for the supplied permission object
     */


    public static Criteria buildCriteria(Permission permission)
    {
        Criteria crit;


        try
        {
            Class[] clazz = new Class[] { permissionObject };
            Object[] params =

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