/[cvs]/nfo/php/libs/org.netfrag.glib/DataSource/Locator.php
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revision 1.7 by joko, Wed Mar 5 17:13:16 2003 UTC revision 1.14 by joko, Tue Mar 11 02:14:24 2003 UTC
# Line 12  Line 12 
12   * @author Andreas Motl <andreas.motl@ilo.de>   * @author Andreas Motl <andreas.motl@ilo.de>
13   * @package org.netfrag.glib   * @package org.netfrag.glib
14   * @name DataSource::Locator   * @name DataSource::Locator
  * @filesource  
15   *   *
16   *   *
17     */
18    
19    
20    /**
21   * <b>Cvs-Log:</b>   * <b>Cvs-Log:</b>
22   *   *
23   * <pre>   * <pre>
24   * $Id$   * $Id$
25   *   *
26   * $Log$   * $Log$
27     * Revision 1.14  2003/03/11 02:14:24  joko
28     * + fixed metadata for phpDocumentor
29     *
30     * Revision 1.13  2003/03/11 02:04:37  joko
31     * + fixed metadata for phpDocumentor
32     *
33     * Revision 1.12  2003/03/11 01:10:00  joko
34     * + fixed metadata for phpDocumentor
35     *
36     * Revision 1.11  2003/03/11 00:12:49  joko
37     * + fixed metadata for phpDocumentor
38     *
39     * Revision 1.10  2003/03/10 23:25:03  joko
40     * + fixed metadata for phpDocumentor
41     *
42     * Revision 1.9  2003/03/10 22:31:55  joko
43     * + fixed metadata for phpDocumentor
44     *
45     * Revision 1.8  2003/03/09 15:50:36  joko
46     * + additional metadata for Autodia
47     *
48   * Revision 1.7  2003/03/05 17:13:16  joko   * Revision 1.7  2003/03/05 17:13:16  joko
49   * updated docu (phpDocumentor testing....)   * updated docu (phpDocumentor testing....)
50   *   *
# Line 49  Line 73 
73  /**  /**
74   * It helps DataSource::Generic working in different "operation modes".   * It helps DataSource::Generic working in different "operation modes".
75   *   *
76   * <ul>   * <b>Modes:</b> (these are proposals, more or less...)
77   * o Pass-Through-Reference: php Object will get passed through all layers   * o Pass-Through-Reference: php Object will get passed through all layers
78   * o Pass-Through-Memory: reference to a memory area will get used   * o Pass-Through-Memory: reference to a memory area will get used
79   * x Build-Locator: build locator from datasource-type and adapter-type   * + Build-Locator: build locator from datasource-type and adapter-type
80   * o Use-Locator: directly use DataSource::Locator instance passed in   * o Use-Locator: directly use DataSource::Locator instance passed in
81   * o Merge-Locators: merge metadata of two or more DataSource::Locator instances   * o Merge-Locators: merge metadata of two or more DataSource::Locator instances
82   * o Build-AutoLocator: use global constants making up our metadata   * o Build-AutoLocator: use global constants making up our metadata
  * </ul>  
  *  
83   *   *
84   * <b>It can/should contain:</b>   * <b>It can/should contain:</b>
85   * (flexible, just some parameters are required for each operation mode)   * (flexible, just some parameters are required for each operation mode)
  * <ul>  
86   * o an oldschool "dsn"-string (e.g. for rdbms-connection via PEAR)   * o an oldschool "dsn"-string (e.g. for rdbms-connection via PEAR)
87   * x name of a Proxy module to use to *wrap/hide* the connection/transport-layer   * + (x) name of a Proxy module to use to *wrap/hide* the connection/transport-layer
88   *   (e.g. DataSource::Proxy::XMLRPC via DesignPattern::RemoteProxy)   *   (e.g. DataSource::Proxy::XMLRPC via DesignPattern::RemoteProxy)
89   * x metadata (a hash) directly describing *where* to connect to (e.g. 'Host', 'Port')   * + (x) metadata (a hash) directly describing *where* to connect to (e.g. 'Host', 'Port')
90   * o an instance of an already instantiated arbitrary datasource handler (e.g. 'source')   * o an instance of an already instantiated arbitrary datasource handler (e.g. 'source')
91   *   this will get propagated (pass-through-mode)   *   this will get propagated (pass-through-mode)
92   * o a datasource-type (of 'rpc|mysql|csv-file|xml-file')   * o a datasource-type (of 'rpc|mysql|csv-file|xml-file')
93   *   this will be mapped to a module name and used as a *Proxy*   *   this will be mapped to a module name and used as a *Proxy*
94   *   by the DataSource::Generic at runtime   *   by the DataSource::Generic at runtime
95   * x an adapter-type (of 'phpHtmlLib|pear')   * + (x) an adapter-type (of 'phpHtmlLib|pear')
96   *   this will be mapped to a module name and used as an *Adapter*   *   this will be mapped to a module name and used as an *Adapter*
97   *   by the DataSource::Generic at runtime   *   by the DataSource::Generic at runtime
98   * o names of global constants where to find these informations   * o names of global constants where to find these informations
99   * o datasource-type ('rpc|csv-file|...') <-> datasource-family ('orm|rdbms|odbms')   * o datasource-type ('rpc|csv-file|...') <-> datasource-family ('orm|rdbms|odbms')
  * </ul>  
  *  
  *  
  * <b>It can do</b>  
  * <ul>  
  * # builds a larger locator from a minimum of information passed in via constructor-arguments  
  * o direct fallback mode to some predefined constant names if locator is empty and above method fails  
  * o direct fallback mode to some predefined values if just *everything* fails  
  * </ul>  
100   *   *
101     * <b>It can do:</b>
102     * - builds a larger locator from a minimum of information passed in via constructor-arguments
103     * - direct fallback mode to some predefined constant names if locator is empty and above method fails
104     * - direct fallback mode to some predefined values if just *everything* fails
105   *   *
106   * <b>How to use?</b>   * <b>How to use?</b>
107   *   *
# Line 94  Line 110 
110   *   *
111   * Pass an array to the constructor: (e.g.)   * Pass an array to the constructor: (e.g.)
112   *   *
113     * <p>
114   *  1. for doing rpc-calls....   *  1. for doing rpc-calls....
115   *    <code>   *    <code>
116   *    $locator = array(   *    $locator = array(
# Line 101  Line 118 
118   *      [adapter_type => 'phpHtmlLib',]   *      [adapter_type => 'phpHtmlLib',]
119   *      metadata => array( Host => 'localhost', Port => '8765' ),   *      metadata => array( Host => 'localhost', Port => '8765' ),
120   *    );   *    );
121   *    $source = new DataSource::Generic($locator);   *    $source = ne w DataSource::Generic($locator);
122   *    $this->set_data_source( &$source );   *    $this->set_data_source( &$source );
123   *    </code>   *    </code>
124   *   *
# Line 110  Line 127 
127   *    $locator = array(   *    $locator = array(
128   *      dsn => 'known dsn markup',   *      dsn => 'known dsn markup',
129   *    );   *    );
130   *    $source = new DataSource::Generic($locator);   *    $source = ne w DataSource::Generic($locator);
131   *    $this->set_data_source( &$source );   *    $this->set_data_source( &$source );
132   *    </code>   *    </code>
133     * </p>
134   *   *
135   *   *
136   *   *
# Line 136  class DataSource_Locator { Line 154  class DataSource_Locator {
154      * using metadata from $_options and some      * using metadata from $_options and some
155      * other presets.      * other presets.
156      *      *
157      * @see function build, which acts as a dispatcher      * @see build, which acts as a dispatcher
158      * depending on $_options[datasource].      * depending on $_options[datasource].
159      * (main dispatching level)      * (main dispatching level)
160      *      *
161        * <pre>
162      * The structure of a full blown locator looks like this:      * The structure of a full blown locator looks like this:
163      *      *
164      * <code>      * <code>
# Line 170  class DataSource_Locator { Line 189  class DataSource_Locator {
189      *    )      *    )
190      *  );      *  );
191      * </code>      * </code>
192        * </pre>
193      *      *
194      * @deprecated      * @deprecated
195      *      *
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