org.eclipse.datatools.modelbase.sql.query.util
Class SQLQuerySourceWriterProvider
java.lang.Object
org.eclipse.datatools.modelbase.sql.query.util.SQLQuerySourceWriterProvider
public class SQLQuerySourceWriterProvider
- extends java.lang.Object
Singleton SQLQuerySourceWriterProvider holds a registry of
SQLQuerySourceWriter extensions and creates instances of
SQLQuerySourceWriters, that are registered for a specific
SQLQueryObject Package.
As plugin in an eclipse runtime environment, the registration of
SQLQuerySourceWriter for a package of
SQLQueryObject extensions is done at start time of the plugin
containing the SQL Query model extension.
The registry is implemented following the lazy loading
startegy and the plugin extending the SQL Query model plugin is only loaded
the first time a SQLQueryObject is
instanciated in the extending plugin.
- Author:
- ckadner
|
Method Summary |
static SQLQuerySourceWriterProvider |
getInstance()
|
void |
registerSourceWriter(java.lang.Class sourceWriterClass,
java.lang.String sqlModelObjectsPackageName)
Method to register a subclass of the SQLQuerySourceWriter
for a specific package of SQLQueryObjects, that the given
sourceWriterClass generates the SQL source for. |
| Methods inherited from class java.lang.Object |
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
getInstance
public static SQLQuerySourceWriterProvider getInstance()
- Returns:
- the singleton
SQLQuerySourceWriterProvider instance
registerSourceWriter
public void registerSourceWriter(java.lang.Class sourceWriterClass,
java.lang.String sqlModelObjectsPackageName)
- Method to register a subclass of the
SQLQuerySourceWriter
for a specific package of SQLQueryObjects, that the given
sourceWriterClass generates the SQL source for. Note:
there can only be one SQLQuerySourceWriter for one
package of SQLQueryObjects, however one
SQLQuerySourceWriter can generate the SQL source for
multiple packages of SQLQueryObjects. In general an
extension of a SQLQuerySourceWriter goes along with an
extension to the SQLQueryObject model. Developer note:
if the name and packaging of the SQLQuerySourceWriter
follows the naming convention described in the class documentaion
section, the SQLQuerySourceWriter will be registered
automatically via @link java.lang.reflect.*
- Parameters:
sourceWriterClass - the SQLQuerySourceWriter class that generates
the SQL source for the SQLQueryObject s in the
given sqlModelObjectsPackagesqlModelObjectsPackageName - fully qualified package name of SQLQueryObjects