//set the namespace prefix service to the dereferencer
entityDereferencer.setNsPrefixService(prefixService);
//now parse dereference field config
entityDereferencer.setDereferencedFields(engineConfig.getDereferenceFields());
entityDereferencer.setLdPath(engineConfig.getLdPathProgram());
entityDereferenceEngine = new EntityDereferenceEngine(entityDereferencer, engineConfig);
//NOTE: registration of this instance as OSGI service is done as soon as the
// entityhub service backing the entityDereferencer is available.
//finally start tracking
entityDereferencer.open();