de.uni_leipzig.wifa.iwi.mr3.dao
Interface ModelRepositoryDao

All Known Implementing Classes:

ModelRepositoryDaoNeo4jImpl

public interface ModelRepositoryDao

Model repository DAO.

Method Summary

void	delete(String nsUri, boolean cascading) Remove the model from repository with the given namespace URI.
Match[]	find(String expression, String[] classifiers, boolean isRegEx, boolean isCaseSensitive) Finds all instances of given classifiers that contain given expression.
String[]	getInstanceModels(String metaNsUri) Find all model instances of the model with the given nsURI.
org.eclipse.emf.ecore.EObject	load(String nsUri, Map<Object,org.eclipse.emf.ecore.EObject> registry) Load model by given namespace URI.
boolean	modelExists(String nsUri) Check whether a model exists for the given namespace URI.
void	save(org.eclipse.emf.ecore.resource.Resource resource) Save Resource.
void	shutDown() Lifecycle method.
void	startUp() Initialize the persitence media.

Method Detail

startUp

void startUp()

Initialize the persitence media.

Make all stept to create an empty database. This action destroys any existing datastore.

shutDown

void shutDown()

Lifecycle method.

Close all resources.

load

org.eclipse.emf.ecore.EObject load(String nsUri,
                                   Map<Object,org.eclipse.emf.ecore.EObject> registry)

Load model by given namespace URI.

If no model will be found, the return value is null.

Parameters:

nsUri - Namespace URI

registry - the registry for loaded elements

Returns:

Model

save

void save(org.eclipse.emf.ecore.resource.Resource resource)
          throws MRException

Save Resource.

The resource will be saved under it's nsURI. Any existing model can not be overwritten. In case of existence it must be deleted before saved.

Try modelExists(String) to test whether the model still exists.

Parameters:

resource - EMF Resource to save

Throws:

MRException - Application logic exception

modelExists

boolean modelExists(String nsUri)

Check whether a model exists for the given namespace URI.

Parameters:

nsUri - Namespace URI to test

Returns:

true if a model exists inside the repository for the given namespace URI, otherwise false

delete

void delete(String nsUri,
            boolean cascading)
            throws MRException

Remove the model from repository with the given namespace URI.

If no model with given namespace URI exists, no action will be taken.

Parameters:

nsUri - Namespace URI of model to delete

cascading - Whether all the instance models shoud also deleted

Throws:

MRException - Application logic exception

getInstanceModels

String[] getInstanceModels(String metaNsUri)

Find all model instances of the model with the given nsURI.

Parameters:

metaNsUri - nsURI of meta model

Returns:

Array of instance model's nsURI.

find

Match[] find(String expression,
             String[] classifiers,
             boolean isRegEx,
             boolean isCaseSensitive)

Finds all instances of given classifiers that contain given expression.

Parameters:

expression - the expression to search for

classifiers - the classifiers to search in

isRegEx - RegExp search

isCaseSensitive - Case sensitive search

Returns:

the array of found models matching the given expression