/** @inheritDoc */
public <T> T find(final Class<T> theClass, final Object theObj) {
assertOpen();
try {
AnnotationChecker.assertValid(theClass);
} catch (EmpireException e) {
throw new IllegalArgumentException(e);
}
try {
if (DataSourceUtil.exists(getDataSource(), EmpireUtil.asPrimaryKey(theObj))) {
T aT = RdfGenerator.fromRdf(theClass, EmpireUtil.asPrimaryKey(theObj), getDataSource());
postLoad(aT);
return aT;
} else {
return null;
}
} catch (InvalidRdfException e) {
throw new IllegalArgumentException(
"Type is not valid, or object with key is not a valid Rdf Entity.", e);
} catch (DataSourceException e) {
throw new PersistenceException(e);
}
}
/** @inheritDoc */
public boolean contains(final Object theObj) {
assertStateOk(theObj);
try {
return DataSourceUtil.exists(getDataSource(), theObj);
} catch (DataSourceException e) {
throw new PersistenceException(e);
}
}
