/[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 1.19 by joko, Tue Mar 11 03:05:01 2003 UTC
# Line 24  Line 24 
24   * $Id$   * $Id$
25   *   *
26   * $Log$   * $Log$
27     * Revision 1.19  2003/03/11 03:05:01  joko
28     * + fixed metadata for phpDocumentor
29     *
30     * Revision 1.18  2003/03/11 02:42:51  joko
31     * + fixed metadata for phpDocumentor
32     *
33     * Revision 1.17  2003/03/11 02:34:55  joko
34     * + fixed metadata for phpDocumentor
35     *
36     * Revision 1.16  2003/03/11 02:28:12  joko
37     * + fixed metadata for phpDocumentor
38     *
39     * Revision 1.15  2003/03/11 02:23:03  joko
40     * + fixed metadata for phpDocumentor
41     *
42     * Revision 1.14  2003/03/11 02:14:24  joko
43     * + fixed metadata for phpDocumentor
44     *
45     * Revision 1.13  2003/03/11 02:04:37  joko
46     * + fixed metadata for phpDocumentor
47     *
48     * Revision 1.12  2003/03/11 01:10:00  joko
49     * + fixed metadata for phpDocumentor
50     *
51   * Revision 1.11  2003/03/11 00:12:49  joko   * Revision 1.11  2003/03/11 00:12:49  joko
52   * + fixed metadata for phpDocumentor   * + fixed metadata for phpDocumentor
53   *   *
# Line 64  Line 88 
88  /**  /**
89   * It helps DataSource::Generic working in different "operation modes".   * It helps DataSource::Generic working in different "operation modes".
90   *   *
91     * <p>
92     * <b>Modes:</b> (these are proposals, more or less...)
93   * o Pass-Through-Reference: php Object will get passed through all layers   * o Pass-Through-Reference: php Object will get passed through all layers
94   * o Pass-Through-Memory: reference to a memory area will get used   * o Pass-Through-Memory: reference to a memory area will get used
95   * + Build-Locator: build locator from datasource-type and adapter-type   * + Build-Locator: build locator from datasource-type and adapter-type
96   * o Use-Locator: directly use DataSource::Locator instance passed in   * o Use-Locator: directly use DataSource::Locator instance passed in
97   * o Merge-Locators: merge metadata of two or more DataSource::Locator instances   * o Merge-Locators: merge metadata of two or more DataSource::Locator instances
98   * o Build-AutoLocator: use global constants making up our metadata   * o Build-AutoLocator: use global constants making up our metadata
99   *   * </p>
100   *   *
101   * <b>It can/should contain:</b>   * <b>It can/should contain:</b>
102   * (flexible, just some parameters are required for each operation mode)   * (flexible, just some parameters are required for each operation mode)
# Line 89  Line 115 
115   * o names of global constants where to find these informations   * o names of global constants where to find these informations
116   * o datasource-type ('rpc|csv-file|...') <-> datasource-family ('orm|rdbms|odbms')   * o datasource-type ('rpc|csv-file|...') <-> datasource-family ('orm|rdbms|odbms')
117   *   *
118   *   * <b>It can do:</b>
  * <b>It can do</b>  
119   * - 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
120   * - 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
121   * - direct fallback mode to some predefined values if just *everything* fails   * - direct fallback mode to some predefined values if just *everything* fails
122   *   *
  *  
123   * <b>How to use?</b>   * <b>How to use?</b>
124   *   *
125   * Pass an array holding "locator metadata" to the constructor.   * Pass an array holding "locator metadata" to the constructor.
126   * This module takes care of the rest.   * This module takes care of the rest.
  *  
127   * Pass an array to the constructor: (e.g.)   * Pass an array to the constructor: (e.g.)
128   *   *
129   *  1. for doing rpc-calls....   * 1. for doing rpc-calls....
130   *    <code>   * <code>
131   *    $locator = array(   *    $locator = array(
132   *      datasource_type => 'rpc',   *      datasource_type => 'rpc',
133   *      [adapter_type => 'phpHtmlLib',]   *      [adapter_type => 'phpHtmlLib',]
# Line 112  Line 135 
135   *    );   *    );
136   *    $source = ne w DataSource::Generic($locator);   *    $source = ne w DataSource::Generic($locator);
137   *    $this->set_data_source( &$source );   *    $this->set_data_source( &$source );
138   *    </code>   * </code>
139   *   *
140   *  2. [proposal] for common/oldschool datahandles....   *  2. [proposal] for common/oldschool datahandles....
141   *    <code>   * <code>
142   *    $locator = array(   *    $locator = array(
143   *      dsn => 'known dsn markup',   *      dsn => 'known dsn markup',
144   *    );   *    );
145   *    $source = ne w DataSource::Generic($locator);   *    $source = ne w DataSource::Generic($locator);
146   *    $this->set_data_source( &$source );   *    $this->set_data_source( &$source );
147   *    </code>   * </code>
148   *   *
149   *   *
150   *   *
# Line 140  Line 163 
163  class DataSource_Locator {  class DataSource_Locator {
164    
165    /**    /**
166      * This var holds the locator metadata hash      * This var holds the locator metadata hash,
167        *
168      * which is built from some predefined rules      * which is built from some predefined rules
169      * using metadata from $_options and some      * using metadata from $_options and some
170      * other presets.      * other presets.
171      *      *
172      * @see function build, which acts as a dispatcher      * {@see build}, which acts as a dispatcher
173      * depending on $_options[datasource].      * depending on $_options[datasource]. (main dispatching level)
     * (main dispatching level)  
174      *      *
175      * The structure of a full blown locator looks like this:      * The structure of a full blown locator looks like this:
176      *      *
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