The accused, of Thornfield Square in Clondalkin, appeared before Blanchardstown District Court charged with seriously assaulting another man.
He is also charged with possession of a firearm with intent to endanger life and with the unlawful possession of a handgun.
The alleged incident took place at National Recycling Clondalkin, Commercial Park, Clondalkin, on August 7, 2012.
It is alleged Zefaj had the gun as he intended to kill or cause injury to a named man.
A State solicitor said the matter was before the court for the service of the book of evidence but the book was not yet available.
Defence solicitor Terence Hanahoe has asked for the matter to be adjourned for four weeks, peremptory for the book of evidence, saying that the matter has been before the courts for some time.
The State solicitor said that he would agree to the matter being marked peremptory for the book if it was adjourned for six weeks.
Judge David McHugh adjourned the matter for six weeks to a date in March for the service of the book of evidence.