/[cvs]/nfo/php/libs/org.netfrag.glib/DataSource/Generic.php
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revision 1.3 by joko, Sun Mar 9 15:50:36 2003 UTC revision 1.8 by jonen, Thu Mar 20 07:22:14 2003 UTC
# Line 9  Line 9 
9   */   */
10    
11  /**  /**
12     * <b>Cvs-Log:</b>
13     *
14     * <pre>
15   * $Id$   * $Id$
16   *   *
17   * $Log$   * $Log$
18     * Revision 1.8  2003/03/20 07:22:14  jonen
19     * + modified case 'object' to 'objects'
20     *   (cause its loads all *objects* of a given classname)
21     *
22     * Revision 1.7  2003/03/11 01:43:00  joko
23     * + fixed metadata for phpDocumentor
24     *
25     * Revision 1.6  2003/03/11 01:22:25  joko
26     * + fixed metadata for phpDocumentor
27     *
28     * Revision 1.5  2003/03/11 00:12:49  joko
29     * + fixed metadata for phpDocumentor
30     *
31     * Revision 1.4  2003/03/10 23:25:03  joko
32     * + fixed metadata for phpDocumentor
33     *
34   * Revision 1.3  2003/03/09 15:50:36  joko   * Revision 1.3  2003/03/09 15:50:36  joko
35   * + additional metadata for Autodia   * + additional metadata for Autodia
36   *   *
# Line 44  Line 63 
63   *   *
64   * Revision 1.1  2003/03/01 03:10:40  joko   * Revision 1.1  2003/03/01 03:10:40  joko
65   * + initial commit   * + initial commit
66   *   * </pre>
67   *   *
68   */   */
69    
# Line 123  loadModule('DesignPattern::AdapterProxy' Line 142  loadModule('DesignPattern::AdapterProxy'
142   * --- snipped into here from above ---   * --- snipped into here from above ---
143   * </pre>   * </pre>
144   *   *
145   *   * <p>
146   * !!!!!!  refactor this to Data::Driver::Proxy  !!!!!!     <-----------------   * !!!!!!  refactor this to Data::Driver::Proxy  !!!!!!     <-----------------
147   *   *
148   * Data::Driver::Proxy instantiates "handlers" below itself   * Data::Driver::Proxy instantiates "handlers" below itself
# Line 144  loadModule('DesignPattern::AdapterProxy' Line 163  loadModule('DesignPattern::AdapterProxy'
163   * </pre>   * </pre>
164   *   *
165   * !!!!!!  refactor this to Data::Driver::Proxy  !!!!!!     <-----------------   * !!!!!!  refactor this to Data::Driver::Proxy  !!!!!!     <-----------------
166     * </p>
167   *   *
168   *   *
169     * <p>
170   * <b>How to use?</b>   * <b>How to use?</b>
171   *   *
172   * Pass an array holding "locator metadata" to the constructor.   * Pass an array holding "locator metadata" to the constructor.
173   * GenericDataSource takes care of the rest.   * GenericDataSource takes care of the rest.
174   *   *
175     * <pre>
176   * Pass an array to the constructor: (e.g.)   * Pass an array to the constructor: (e.g.)
177   *   *
178   *  1. doing rpc-calls....   *  1. doing rpc-calls....
# Line 172  loadModule('DesignPattern::AdapterProxy' Line 194  loadModule('DesignPattern::AdapterProxy'
194   *    $source = ne w GenericDataSource($locator);   *    $source = ne w GenericDataSource($locator);
195   *    $this->set_data_source( &$source );   *    $this->set_data_source( &$source );
196   *    </code>   *    </code>
197     * </pre>
198     * </p>
199     *
200   *   *
201   * @link http://www.netfrag.org/~joko/   * @link http://www.netfrag.org/~joko/
202   * @author Andreas Motl <andreas.motl@ilo.de>   * @author Andreas Motl <andreas.motl@ilo.de>
# Line 189  loadModule('DesignPattern::AdapterProxy' Line 214  loadModule('DesignPattern::AdapterProxy'
214   * @subpackage DataSource   * @subpackage DataSource
215   * @name DataSource::Generic   * @name DataSource::Generic
216   *   *
217   * @todo   * @todo this:
218   * <ul>   * o mungle this to be able to be wrapped around phpHtmlLib's own storage-handles
219   *  o mungle this to be able to be wrapped around phpHtmlLib's own storage-handles   * o implement another Data::Driver::Proxy container
  *  o implement another Data::Driver::Proxy container  
  * </ul>  
220   *   *
221     * <pre>
222  //              !!!!!!!!          THIS IS THE PROBLEM          !!!!!!!!   *              !!!!!!!!          THIS IS THE PROBLEM          !!!!!!!!
223  //    !!!!!!!!   here is it where we have to break inheritance again   !!!!!!!!   *    !!!!!!!!   here is it where we have to break inheritance again   !!!!!!!!
224  //   *
225  //    THE CONFLICT: Beeing in phpHtmlLib *and* DesignPattern::TransparentProxy   *    THE CONFLICT: Beeing in phpHtmlLib *and* DesignPattern::TransparentProxy
226  //    inheritance trees at the same time, which is *not* possible at   *    inheritance trees at the same time, which is *not* possible at
227  //    declare-time. We *do* need some runtime-infrastructure to solve this!   *    declare-time. We *do* need some runtime-infrastructure to solve this!
228  //   *
229  //    TODO: move build- and check-locator stuff from ObjectList to this place!!!   *    TODO: move build- and check-locator stuff from ObjectList to this place!!!
230  //   *
231  //    ABOUT:   *    ABOUT:
232  //      1. otherwhere: WebApp - scope:   *      1. otherwhere: WebApp - scope:
233  //          x handles page vs. block vs. widget; dispatches MVC-View   *          x handles page vs. block vs. widget; dispatches MVC-View
234  //      2. here: DataSource - scope:   *      2. here: DataSource - scope:
235  //          x handles bridge to frameworks (e.g. phpHtmlLib) vs. actual data driver libs (PEAR, etc.))   *          x handles bridge to frameworks (e.g. phpHtmlLib) vs. actual data driver libs (PEAR, etc.))
236  //          o clean implementation using a DesignPattern::AdapterProxy   *          o clean implementation using a DesignPattern::AdapterProxy
237  //   * </pre>
238     *
239  */   *
240     */
241  class DataSource_Generic extends DesignPattern_AdapterProxy {  class DataSource_Generic extends DesignPattern_AdapterProxy {
242    
243  //    !!!!!!!!   here is it where we have to break inheritance again   !!!!!!!!  //    !!!!!!!!   here is it where we have to break inheritance again   !!!!!!!!
# Line 648  class DataSource_Generic extends DesignP Line 672  class DataSource_Generic extends DesignP
672              //$this->_locator->set_option('metadata.command', $command);              //$this->_locator->set_option('metadata.command', $command);
673              $args = array();              $args = array();
674              switch ($this->_query[vartype]) {              switch ($this->_query[vartype]) {
675                case 'object':                case 'objects':
676                  if (!$this->_query[classname]) {                  if (!$this->_query[classname]) {
677                    $msg = "_query[vartype] == 'object' requires _query[classname]";                    $msg = "_query[vartype] == 'objects' requires _query[classname]";
678                    user_error("GenericDataSource::query_data() - failed: " . $msg);                    user_error("GenericDataSource::query_data() - failed: " . $msg);
679                  }                  }
680                  array_push($args, $this->_query[classname]);                  array_push($args, $this->_query[classname]);
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