Quelle KeyRule.idl Sprache: C

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module com { module sun { module star { module sdbc {

/** determines the rules for foreign key constraints.
*/
published constants KeyRule
{

 /** a possible value for the column's
 <code>UPDATE_RULE</code>
 and
 <code>DELETE_RULE</code>
 in the
 com::sun::star::sdbc::XResultSet
 objects returned by the methods
 com::sun::star::sdbc::XDatabaseMetaData::getImportedKeys(),
 com::sun::star::sdbc::XDatabaseMetaData::getExportedKeys(),
 and com::sun::star::sdbc::XDatabaseMetaData::getCrossReference().
 
 For the column
 <code>UPDATE_RULE</code>
 ,
 it indicates that
 when the primary key is updated, the foreign key (imported key)
 is changed to agree with it.
 
 
 For the column
 <code>DELETE_RULE</code>
 ,
 it indicates that
 when the primary key is deleted, rows that imported that key
 are deleted.
 
 */
 const long CASCADE = 0;

 /** a possible value for the column's
 <code>UPDATE_RULE</code>
 and
 <code>DELETE_RULE</code>
 in the
 com::sun::star::sdbc::XResultSet
 objects returned by the methods
 com::sun::star::sdbc::XDatabaseMetaData::getImportedKeys(),
 com::sun::star::sdbc::XDatabaseMetaData::getExportedKeys(),
 and com::sun::star::sdbc::XDatabaseMetaData::getCrossReference().
 
 For the column
 <code>UPDATE_RULE</code>
 , it indicates that
 a primary key may not be updated if it has been imported by
 another table as a foreign key.
 
 
 For the column
 <code>DELETE_RULE</code>
 , it indicates that
 a primary key may not be deleted if it has been imported by
 another table as a foreign key.
 
 */
 const long RESTRICT = 1;

 /** a possible value for the column's
 <code>UPDATE_RULE</code>
 and
 <code>DELETE_RULE</code>
 in the
 com::sun::star::sdbc::XResultSet
 objects returned by the methods
 com::sun::star::sdbc::XDatabaseMetaData::getImportedKeys(),
 com::sun::star::sdbc::XDatabaseMetaData::getExportedKeys(),
 and com::sun::star::sdbc::XDatabaseMetaData::getCrossReference().
 
 For the columns
 <code>UPDATE_RULE</code>
 and
 <code>DELETE_RULE</code>
 ,
 it indicates that
 when the primary key is updated or deleted, the foreign key (imported key)
 is changed to <code>NULL</code>.
 
 */
 const long SET_NULL = 2;

 /** a possible value for the column's
 <code>UPDATE_RULE</code>
 and
 <code>DELETE_RULE</code>
 in the
 com::sun::star::sdbc::XResultSet
 objects returned by the methods
 com::sun::star::sdbc::XDatabaseMetaData::getImportedKeys(),
 com::sun::star::sdbc::XDatabaseMetaData::getExportedKeys(),
 and com::sun::star::sdbc::XDatabaseMetaData::getCrossReference().
 
 For the columns
 <code>UPDATE_RULE</code>
 and
 <code>DELETE_RULE</code>
 ,
 it indicates that if the primary key has been imported, it cannot be updated or deleted.
 
 */
 const long NO_ACTION = 3;

 /** a possible value for the column's
 <code>UPDATE_RULE</code>
 and
 <code>DELETE_RULE</code>
 in the
 com::sun::star::sdbc::XResultSet
 objects returned by the methods
 com::sun::star::sdbc::XDatabaseMetaData::getImportedKeys(),
 com::sun::star::sdbc::XDatabaseMetaData::getExportedKeys(),
 and com::sun::star::sdbc::XDatabaseMetaData::getCrossReference().
 
 For the columns
 <code>UPDATE_RULE</code>
 and
 <code>DELETE_RULE</code>
 ,
 it indicates that
 if the primary key is updated or deleted, the foreign key (imported key)
 is set to the default value.
 
 */
 const long SET_DEFAULT = 4;
};

}; }; }; };

/*===========================================================================
===========================================================================*/

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