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* $Id$ |
* $Id$ |
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* |
* |
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* $Log$ |
* $Log$ |
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* Revision 1.13 2003/03/11 02:04:37 joko |
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* + fixed metadata for phpDocumentor |
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* |
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* Revision 1.12 2003/03/11 01:10:00 joko |
* Revision 1.12 2003/03/11 01:10:00 joko |
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* + fixed metadata for phpDocumentor |
* + fixed metadata for phpDocumentor |
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* |
* |
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/** |
/** |
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* It helps DataSource::Generic working in different "operation modes". |
* It helps DataSource::Generic working in different "operation modes". |
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* |
* |
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* <p> |
* <b>Modes:</b> (these are proposals, more or less...) |
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* <ul> |
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* o Pass-Through-Reference: php Object will get passed through all layers |
* o Pass-Through-Reference: php Object will get passed through all layers |
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* o Pass-Through-Memory: reference to a memory area will get used |
* o Pass-Through-Memory: reference to a memory area will get used |
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* + Build-Locator: build locator from datasource-type and adapter-type |
* + Build-Locator: build locator from datasource-type and adapter-type |
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* o Use-Locator: directly use DataSource::Locator instance passed in |
* o Use-Locator: directly use DataSource::Locator instance passed in |
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* o Merge-Locators: merge metadata of two or more DataSource::Locator instances |
* o Merge-Locators: merge metadata of two or more DataSource::Locator instances |
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* o Build-AutoLocator: use global constants making up our metadata |
* o Build-AutoLocator: use global constants making up our metadata |
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* </ul> |
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* </p> |
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* |
* |
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* <p> |
|
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* <b>It can/should contain:</b> |
* <b>It can/should contain:</b> |
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* (flexible, just some parameters are required for each operation mode) |
* (flexible, just some parameters are required for each operation mode) |
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* o an oldschool "dsn"-string (e.g. for rdbms-connection via PEAR) |
* o an oldschool "dsn"-string (e.g. for rdbms-connection via PEAR) |
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* by the DataSource::Generic at runtime |
* by the DataSource::Generic at runtime |
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* o names of global constants where to find these informations |
* o names of global constants where to find these informations |
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* o datasource-type ('rpc|csv-file|...') <-> datasource-family ('orm|rdbms|odbms') |
* o datasource-type ('rpc|csv-file|...') <-> datasource-family ('orm|rdbms|odbms') |
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* </p> |
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* |
* |
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* <p> |
|
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* <b>It can do</b> |
* <b>It can do</b> |
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* - 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 |
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* - 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 |
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* - direct fallback mode to some predefined values if just *everything* fails |
* - direct fallback mode to some predefined values if just *everything* fails |
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* </p> |
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* |
* |
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* <p> |
|
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* <b>How to use?</b> |
* <b>How to use?</b> |
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* |
* |
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* Pass an array holding "locator metadata" to the constructor. |
* Pass an array holding "locator metadata" to the constructor. |
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* $source = ne w DataSource::Generic($locator); |
* $source = ne w DataSource::Generic($locator); |
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* $this->set_data_source( &$source ); |
* $this->set_data_source( &$source ); |
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* </code> |
* </code> |
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* </p> |
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* |
* |
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* |
* |
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* |
* |