*******************************************************************************/
package org.simantics.db.common.primitiverequest;
-import java.util.Collection;
-
import org.simantics.db.AsyncReadGraph;
-import org.simantics.db.ReadGraph;
import org.simantics.db.Resource;
-import org.simantics.db.common.request.ResourceRead2;
-import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.common.request.ResourceAsyncMultiRead2;
import org.simantics.db.procedure.AsyncMultiProcedure;
-import org.simantics.db.service.CollectionSupport;
-import org.simantics.utils.DataContainer;
-final public class ForEachAssertedObject extends ResourceRead2<Collection<Resource>> {
+final public class ForEachAssertedObject extends ResourceAsyncMultiRead2<Resource> {
public ForEachAssertedObject(Resource subject, Resource relation) {
super(subject, relation);
}
@Override
- public Collection<Resource> perform(ReadGraph graph) throws DatabaseException {
- CollectionSupport cs = graph.getService(CollectionSupport.class);
- Collection<Resource> result = cs.createSet();
- DataContainer<Throwable> throwable = new DataContainer<Throwable>(null);
- graph.forEachAssertedObject(resource, resource2, new AsyncMultiProcedure<Resource>() {
-
- @Override
- public void finished(AsyncReadGraph graph) {
- }
-
- @Override
- public void execute(AsyncReadGraph graph, Resource r) {
- result.add(r);
- }
-
- @Override
- public void exception(AsyncReadGraph graph, Throwable t) {
- throwable.set(t);
- }
- });
- Throwable t = throwable.get();
- if(t != null)
- if(t instanceof DatabaseException)
- throw (DatabaseException)t;
- else throw new DatabaseException(t);
- return result;
+ public void perform(AsyncReadGraph graph, AsyncMultiProcedure<Resource> procedure) {
+ graph.forEachAssertedObject(resource, resource2, procedure);
}
}