...

• StepLoader.findStepPluginWithID(id) --> PluginRegistry.findPluginWithId(StepPluginType.getInstance()class, id)
• StepPlugin --> PluginInterface
• StepLoader.getStepClass(StepPlugin) --> (StepMetaInterface)PluginRegistry.loadClass(PluginInterface, PluginClassType.MainClassType)
• StepLoader.getStepPluginID(StepMetaInterface) --> PluginRegistry.getPluginId(StepPluginType.getInstance().class, StepMetaInterface)
• init() --> taken over by PluginRegistry.init() and StepPluginType.searchPlugins()
• getPluginPackages() --> is now available as getPluginPackages(PluginTypeInterface) returning a list of package names.
• getPluginInformation() --> getPluginInformation(PluginTypeInterface) returning a RowBuffer object

...

• JobEntryLoader.findJobEntriesWithDescription(String) --> PluginRegistry.findPluginWithName(StepPluginType..getInstance()class, description)
• JobPlugin (also with a wrong name!) --> PluginInterface
• JobEntryLoader.getStepClass(StepPlugin) --> (JobEntryInterface)PluginRegistry.loadClass(PluginInterface, PluginClassType.MainClassType)
• JobEntryLoader.getJobEntryPluginID(JobEntryInterface) --> PluginRegistry.getPluginId(JobEntryPluginType.getInstance(), JobEntryInterface)
• init(): taken over by PluginRegistry.init() and JobEntryPluginType.searchPlugins()
• getPluginPackages(): is now available as getPluginPackages(PluginTypeInterface) returning a list of package names.
• getPluginInformation(): getPluginInformation(PluginTypeInterface) returning a RowBuffer object

The JobPlugin class and the PluginInterface are quite similar, see the StepLoader paragraph above for more information.

DatabaseMeta

Since the creation of DatabaseMeta is now handled by the PluginRegistry as well, we can say a few words about the migration of your code.

Here are a few of the methods that are now missing from DatabaseMeta:

• getDatabaseTypeDescLong() --> You need to look up the PluginInterface for this database in the plugin registry with the pluginId.
  PluginInterface plugin = registry.getPlugin(DatabasePluginType.class, pluginId); 
  With this you can determine the name (previous long description)
• getDatabaseTypeDesc() --> This is in fact the plugin ID of the DatabaseMeta object.

Examples from the field

Job entry example

JobPlugin plugin = JobEntryLoader.getInstance().findJobPluginWithID(typeId);

 becomes:

PluginInterface plugin = PluginRegistry.getInstance().getPlugin(JobEntryPluginType..class, typeId);

Step plugin example

 stepMetaInterface = StepLoader.getInstance().getStepClass(sp);

becomes

stepMetaInterface = (StepMetaInterface)PluginRegistry.getInstance().loadClass(sp);

Pentaho Examples

StepLoader steploader = StepLoader.getInstance();
String fromstepid = steploader.getStepPluginID(tii);

becomes

PluginRegistry registry = PluginRegistry.getInstance();
String fromstepid = registry.getPluginId(tii);

repository = (Repository) RepositoryLoader.createRepository(repositoryMeta);

becomes

repository = (Repository)PluginRegistry.getInstance().loadClass(RepositoryPluginType..class, repositoryMeta.getId(), PluginClassType.MainClassType);
repository.init(repositoryMeta);