If it truly is a deferred entry judgment (DEJ) case (meaning you have NOT been sentenced), then once you comply with all terms of your bargain with the court/District Attorney's Office then, yes, your matter should be dismissed and your record should reflect the same. Note however that the arrest will remain on your record and if an employer runs your information through certain databases it may be found. In addition the disposition concerning the DEJ may appear depending upon the terms of your bargain.
NOTE: This answer does not constitute a guarantee, warranty, or prediction regarding the outcome of your legal matter. The information you obtain at this site is not, nor is it intended to be, legal advice. You should consult an attorney for an individual consult concerning customized advice regarding your specific situation.