/[cvs]/nfo/php/libs/org.netfrag.glib/DataSource/Locator.php
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revision 1.12 by joko, Tue Mar 11 01:10:00 2003 UTC revision 1.27 by joko, Tue Mar 11 16:44:59 2003 UTC
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24   * $Id$   * $Id$
25   *   *
26   * $Log$   * $Log$
27     * Revision 1.27  2003/03/11 16:44:59  joko
28     * + fixed metadata for phpDocumentor
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30     * Revision 1.26  2003/03/11 16:41:47  joko
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42     * Revision 1.22  2003/03/11 04:03:54  joko
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45     * Revision 1.21  2003/03/11 03:23:36  joko
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48     * Revision 1.20  2003/03/11 03:17:37  joko
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54     * Revision 1.18  2003/03/11 02:42:51  joko
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57     * Revision 1.17  2003/03/11 02:34:55  joko
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60     * Revision 1.16  2003/03/11 02:28:12  joko
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63     * Revision 1.15  2003/03/11 02:23:03  joko
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69     * Revision 1.13  2003/03/11 02:04:37  joko
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71     *
72   * Revision 1.12  2003/03/11 01:10:00  joko   * Revision 1.12  2003/03/11 01:10:00  joko
73   * + fixed metadata for phpDocumentor   * + fixed metadata for phpDocumentor
74   *   *
# Line 67  Line 112 
112  /**  /**
113   * It helps DataSource::Generic working in different "operation modes".   * It helps DataSource::Generic working in different "operation modes".
114   *   *
115   * <p>   * <b>Modes:</b> (these are proposals, more or less...)
  * <ul>  
116   * o Pass-Through-Reference: php Object will get passed through all layers   * o Pass-Through-Reference: php Object will get passed through all layers
117   * o Pass-Through-Memory: reference to a memory area will get used   * o Pass-Through-Memory: reference to a memory area will get used
118   * + Build-Locator: build locator from datasource-type and adapter-type   * + Build-Locator: build locator from datasource-type and adapter-type
119   * o Use-Locator: directly use DataSource::Locator instance passed in   * o Use-Locator: directly use DataSource::Locator instance passed in
120   * o Merge-Locators: merge metadata of two or more DataSource::Locator instances   * o Merge-Locators: merge metadata of two or more DataSource::Locator instances
121   * o Build-AutoLocator: use global constants making up our metadata   * o Build-AutoLocator: use global constants making up our metadata
  * </ul>  
  * </p>  
122   *   *
  * <p>  
123   * <b>It can/should contain:</b>   * <b>It can/should contain:</b>
124   * (flexible, just some parameters are required for each operation mode)   * (flexible, just some parameters are required for each operation mode)
125   * o an oldschool "dsn"-string (e.g. for rdbms-connection via PEAR)   * o an oldschool "dsn"-string (e.g. for rdbms-connection via PEAR)
# Line 95  Line 136 
136   *   by the DataSource::Generic at runtime   *   by the DataSource::Generic at runtime
137   * o names of global constants where to find these informations   * o names of global constants where to find these informations
138   * o datasource-type ('rpc|csv-file|...') <-> datasource-family ('orm|rdbms|odbms')   * o datasource-type ('rpc|csv-file|...') <-> datasource-family ('orm|rdbms|odbms')
  * </p>  
139   *   *
140   * <p>   * <b>It can do:</b>
  * <b>It can do</b>  
141   * - builds a larger locator from a minimum of information passed in via constructor-arguments   * - builds a larger locator from a minimum of information passed in via constructor-arguments
142   * - direct fallback mode to some predefined constant names if locator is empty and above method fails   * - direct fallback mode to some predefined constant names if locator is empty and above method fails
143   * - direct fallback mode to some predefined values if just *everything* fails   * - direct fallback mode to some predefined values if just *everything* fails
  * </p>  
144   *   *
  * <p>  
145   * <b>How to use?</b>   * <b>How to use?</b>
146   *   *
147   * Pass an array holding "locator metadata" to the constructor.   * Pass an array holding "locator metadata" to the constructor.
148   * This module takes care of the rest.   * This module takes care of the rest.
  *  
149   * Pass an array to the constructor: (e.g.)   * Pass an array to the constructor: (e.g.)
150   *   *
151   *  1. for doing rpc-calls....   * <code>
152   *    <code>   *    // 1. for doing rpc-calls....
153   *    $locator = array(   *    $locator = array(
154   *      datasource_type => 'rpc',   *      datasource_type =>> 'rpc',
155   *      [adapter_type => 'phpHtmlLib',]   *      [adapter_type => 'phpHtmlLib',]
156   *      metadata => array( Host => 'localhost', Port => '8765' ),   *      metadata => array( Host => 'localhost', Port => '8765' ),
157   *    );   *    );
158   *    $source = ne w DataSource::Generic($locator);   *    $source = ne w DataSource::Generic($locator);
159   *    $this->set_data_source( &$source );   *    $this->set_data_source( &$source );
160   *    </code>   * </code>
161   *   * <code>
162   *  2. [proposal] for common/oldschool datahandles....   *    // 2. [proposal] for common/oldschool datahandles....
  *    <code>  
163   *    $locator = array(   *    $locator = array(
164   *      dsn => 'known dsn markup',   *      dsn => 'known dsn markup',
165   *    );   *    );
166   *    $source = ne w DataSource::Generic($locator);   *    $source = ne w DataSource::Generic($locator);
167   *    $this->set_data_source( &$source );   *    $this->set_data_source( &$source );
168   *    </code>   * </code>
  * </p>  
169   *   *
170   *   *
171   *   *
# Line 150  Line 184 
184  class DataSource_Locator {  class DataSource_Locator {
185    
186    /**    /**
187      * This var holds the locator metadata hash      * This var holds the locator metadata hash,
188        *
189      * which is built from some predefined rules      * which is built from some predefined rules
190      * using metadata from $_options and some      * using metadata from $_options and some
191      * other presets.      * other presets.
192      *      *
193      * @see build, which acts as a dispatcher      * See {@link build}, which acts as a dispatcher
194      * depending on $_options[datasource].      * depending on $_options[datasource]. <br>
195      * (main dispatching level)      * (main dispatching level)
196      *      *
197      * <pre>      * <br>
     * The structure of a full blown locator looks like this:  
198      *      *
199        * The structure of a full blown locator looks like this:
200      * <code>      * <code>
201      *  $locator = array(      *  $locator = array(
202      *    type => '<your type specifying the datasource-type>',      *    type => '<your type specifying the datasource-type>',
# Line 190  class DataSource_Locator { Line 225  class DataSource_Locator {
225      *    )      *    )
226      *  );      *  );
227      * </code>      * </code>
     * </pre>  
228      *      *
229      * @deprecated      * @deprecated
230      *      *
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