/[cvs]/nfo/php/libs/org.netfrag.glib/DataSource/Locator.php
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revision 1.11 by joko, Tue Mar 11 00:12:49 2003 UTC revision 1.26 by joko, Tue Mar 11 16:41:47 2003 UTC
# Line 24  Line 24 
24   * $Id$   * $Id$
25   *   *
26   * $Log$   * $Log$
27     * Revision 1.26  2003/03/11 16:41:47  joko
28     * + fixed metadata for phpDocumentor
29     *
30     * Revision 1.25  2003/03/11 16:28:25  joko
31     * + fixed metadata for phpDocumentor
32     *
33     * Revision 1.24  2003/03/11 04:49:25  joko
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36     * Revision 1.23  2003/03/11 04:15:01  joko
37     * + fixed metadata for phpDocumentor
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39     * Revision 1.22  2003/03/11 04:03:54  joko
40     * + fixed metadata for phpDocumentor
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42     * Revision 1.21  2003/03/11 03:23:36  joko
43     * + fixed metadata for phpDocumentor
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45     * Revision 1.20  2003/03/11 03:17:37  joko
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48     * Revision 1.19  2003/03/11 03:05:01  joko
49     * + fixed metadata for phpDocumentor
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51     * Revision 1.18  2003/03/11 02:42:51  joko
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54     * Revision 1.17  2003/03/11 02:34:55  joko
55     * + fixed metadata for phpDocumentor
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57     * Revision 1.16  2003/03/11 02:28:12  joko
58     * + fixed metadata for phpDocumentor
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60     * Revision 1.15  2003/03/11 02:23:03  joko
61     * + fixed metadata for phpDocumentor
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63     * Revision 1.14  2003/03/11 02:14:24  joko
64     * + fixed metadata for phpDocumentor
65     *
66     * Revision 1.13  2003/03/11 02:04:37  joko
67     * + fixed metadata for phpDocumentor
68     *
69     * Revision 1.12  2003/03/11 01:10:00  joko
70     * + fixed metadata for phpDocumentor
71     *
72   * Revision 1.11  2003/03/11 00:12:49  joko   * Revision 1.11  2003/03/11 00:12:49  joko
73   * + fixed metadata for phpDocumentor   * + fixed metadata for phpDocumentor
74   *   *
# Line 64  Line 109 
109  /**  /**
110   * It helps DataSource::Generic working in different "operation modes".   * It helps DataSource::Generic working in different "operation modes".
111   *   *
112     * <b>Modes:</b> (these are proposals, more or less...)
113   * o Pass-Through-Reference: php Object will get passed through all layers   * o Pass-Through-Reference: php Object will get passed through all layers
114   * o Pass-Through-Memory: reference to a memory area will get used   * o Pass-Through-Memory: reference to a memory area will get used
115   * + Build-Locator: build locator from datasource-type and adapter-type   * + Build-Locator: build locator from datasource-type and adapter-type
# Line 71  Line 117 
117   * o Merge-Locators: merge metadata of two or more DataSource::Locator instances   * o Merge-Locators: merge metadata of two or more DataSource::Locator instances
118   * o Build-AutoLocator: use global constants making up our metadata   * o Build-AutoLocator: use global constants making up our metadata
119   *   *
  *  
120   * <b>It can/should contain:</b>   * <b>It can/should contain:</b>
121   * (flexible, just some parameters are required for each operation mode)   * (flexible, just some parameters are required for each operation mode)
122   * 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 89  Line 134 
134   * o names of global constants where to find these informations   * o names of global constants where to find these informations
135   * o datasource-type ('rpc|csv-file|...') <-> datasource-family ('orm|rdbms|odbms')   * o datasource-type ('rpc|csv-file|...') <-> datasource-family ('orm|rdbms|odbms')
136   *   *
137   *   * <b>It can do:</b>
  * <b>It can do</b>  
138   * - 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
139   * - 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
140   * - direct fallback mode to some predefined values if just *everything* fails   * - direct fallback mode to some predefined values if just *everything* fails
141   *   *
  *  
142   * <b>How to use?</b>   * <b>How to use?</b>
143   *   *
144   * Pass an array holding "locator metadata" to the constructor.   * Pass an array holding "locator metadata" to the constructor.
145   * This module takes care of the rest.   * This module takes care of the rest.
  *  
146   * Pass an array to the constructor: (e.g.)   * Pass an array to the constructor: (e.g.)
147   *   *
148   *  1. for doing rpc-calls....   * <code>
149   *    <code>   *    // 1. for doing rpc-calls....
150   *    $locator = array(   *    $locator = array(
151   *      datasource_type => 'rpc',   *      datasource_type =\> 'rpc',
152   *      [adapter_type => 'phpHtmlLib',]   *      [adapter_type => 'phpHtmlLib',]
153   *      metadata => array( Host => 'localhost', Port => '8765' ),   *      metadata => array( Host => 'localhost', Port => '8765' ),
154   *    );   *    );
155   *    $source = ne w DataSource::Generic($locator);   *    $source = ne w DataSource::Generic($locator);
156   *    $this->set_data_source( &$source );   *    $this->set_data_source( &$source );
157   *    </code>   * </code>
158   *   * <samp>
159   *  2. [proposal] for common/oldschool datahandles....   *    // 2. [proposal] for common/oldschool datahandles....
  *    <code>  
160   *    $locator = array(   *    $locator = array(
161   *      dsn => 'known dsn markup',   *      dsn => 'known dsn markup',
162   *    );   *    );
163   *    $source = ne w DataSource::Generic($locator);   *    $source = ne w DataSource::Generic($locator);
164   *    $this->set_data_source( &$source );   *    $this->set_data_source( &$source );
165   *    </code>   * </samp>
166   *   *
167   *   *
168   *   *
# Line 140  Line 181 
181  class DataSource_Locator {  class DataSource_Locator {
182    
183    /**    /**
184      * This var holds the locator metadata hash      * This var holds the locator metadata hash,
185        *
186      * which is built from some predefined rules      * which is built from some predefined rules
187      * using metadata from $_options and some      * using metadata from $_options and some
188      * other presets.      * other presets.
189      *      *
190      * @see function build, which acts as a dispatcher      * See {@link build}, which acts as a dispatcher
191      * depending on $_options[datasource].      * depending on $_options[datasource]. <br>
192      * (main dispatching level)      * (main dispatching level)
193      *      *
194      * The structure of a full blown locator looks like this:      * <br>
195      *      *
196        * The structure of a full blown locator looks like this:
197      * <code>      * <code>
198      *  $locator = array(      *  $locator = array(
199      *    type => '<your type specifying the datasource-type>',      *    type => '<your type specifying the datasource-type>',
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