Ben Nwosun appeals from the summary judgment granted in favor of General Mills Restaurants, Inc., holding Mr. Nwosun’s claim barred by res judicata. We affirm. 1
On June 16, 1995, Mr. Nwosun filed a retaliatory discharge claim in Oklahoma state court
(Nwosun I)
against General Mills. Four days later he filed a race discrimination claim under Title VII in federal district court
(Nwosun
II) based on his discharge. General Mills applied for a stay in
Nwosun I
until
Nwosun II
was resolved. Summary judgment was entered for General Mills in
Nwo-sun II
due to Mr. Nwosun’s failure to file a
*1257
charge of discrimination with the EEOC within the statutorily required time limit, 42 U.S.C. § 2000e-5(e)(1). He appealed that decision and this Court affirmed on that basis.
Nwosun v. General Mills Restaurants, Inc.,
On December 14, 1995, Mr. Nwosun amended his state court complaint in Nwo-sun I to include the Title VII allegation. General Mills then removed the suit to federal district court, which held the Title VII suit barred by res judicata on the basis of Nwo-sun II. The court also held the state law claim barred since it could have been raised as supplemental along with the Title VII claim in Nwosun II. It is from this holding that Mr. Nwosun appeals.
Res judicata is an affirmative defense on which the defendant has the burden to set forth facts sufficient to satisfy the elements.
See
Fed.R.Civ.P. 8(c);
United States v. Athlone Indus., Inc.,
Res judicata requires the satisfaction of four elements: (1) the prior suit must have ended with a judgment on the merits; (2) the parties must be identical or in privity; (3) the suit must be based on the same cause of action; and (4) the plaintiff must have had a full and fair opportunity to litigate the claim in the prior suit.
See Murdock v. Ute Indian Tribe of Uintah & Ouray Reservation,
The basis of the summary judgment in
Nwosun II
was Nwosun’s failure to timely file a charge of discrimination with the EEOC. This filing requirement constitutes a statute of limitation for all Title VII claims.
See Zipes v. Trans World Airlines,
The third element requires that the suits be based on the same cause of action. This circuit embraces the transactional approach to the definition of “cause of action.”
See Petromanagement Corp. v. Acme-Thomas Joint Venture,
Res judicata further requires that the party had a full and fair opportunity to litigate the claim in the prior suit.
See SilFlo, Inc. v. SFHC, Inc.,
When a federal claim is disposed of pretrial, any supplemental state claims are generally dismissed without prejudice.
See Ball v. Renner,
However, the district court retains the discretion to exercise jurisdiction over the supplemental claim after pretrial adjudication of the federal claim.
See Thatcher Enter, v. Cache County Corp.,
One of the main policy considerations underlying res judicata is the interest in bringing litigation to an end. “By preventing repetitious litigation, application of res judi-cata avoids unnecessary expense and vexation for parties, conserves judicial resources, and encourages reliance on judicial action.”
May,
We have found nothing under the Oklahoma law of res judicata to convince us that Oklahoma would have permitted Mr. Nwosun to proceed with Nwosun I after the same cause of action was dismissed in Nwosun II had these state law claims remained in state court. Since Mr. Nwosun failed to assert his state retaliatory discharge claim under the federal court’s supplemental jurisdiction in Nwosun II, we conclude the district court correctly held him barred by the doctrine of res judicata from litigation of that claim in Nwosun I.
The judgment of the district court is AFFIRMED.
Notes
. After examining the briefs and appellate record, this panel has determined unanimously to honor the parties’ request for a decision on the briefs without oral argument. See Fed. R.App. P. 34(a); 10th Cir. R. 34.1.9.
. Oklahoma, from which this case was removed, also adheres to the transactional approach in a res judicata analysis.
See Retherford. v. Halliburton Co.,
