The Java SDK will check forced decisions before making any decisions. If a matching item is found for the requested flag, the Java SDK will return the forced decision immediately (audience conditions andtraffic allocations are ignored) before making normal decisions.

The following describes specific scenarios the Java SDK will follow:

Flag-to-Decision

• SDK will look up at the beginning of anydecide call for the given flag. If a matching Flag-to-Decision forced decision is found for the flag, it returns the decision.

Experiment-Rule-to-Decision

• SDK will look up at the beginning of the decision for the given experiment rule (of the flag key). If a matching Experiment-Rule-to-Decision forced decision is found for the flag, it returns the decision.

Delivery-Rule-to-Decision

• SDK will look up at the beginning of the decision for the given delivery rule (of the flag key). If a matching Delivery-Rule-to-Decision forced decision is found, it returns the decision.

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Warning

You must associate your variation(s) to aflag rule before calling any Forced Decision methods.

On forced decisions, the Java SDK will fire impression events and notifications just like other normal decisions (unless disabled by thedisableDecisionEvent option).

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Note

These forced decisions are not persistent and will be cleared when theOptimizelyUserContext is re-initialized.

For more information about each method click on the method name below:

• setForcedDecision
• getForcedDecision
• removeForcedDecision
• removeAllForcedDecisions

OptimizelyDecisionContext

public class OptimizelyDecisionContext {   public OptimizelyDecisionContext(@Nonnull String flagKey, @Nullable String ruleKey);     public String getFlagKey();     public String getRuleKey();}

OptimizelyForcedDecision

public class OptimizelyForcedDecision {   public OptimizelyForcedDecision(@Nonnull String variationKey);     public String getVariationKey();}

Set Forced Decision Method - setForcedDecision()

Version

3.10.0

Description

Sets a forced decision (variationKey) for a givenOptimizelyDecisionContext.

Parameters

This table lists the required and optional parameters for the Java SDK.

Returns

A boolean value that indicates if setting the forced decision (variationKey) was completed successfully.

Example

See thefull Java SDK code example.

Get Forced Decision Method - getForcedDecision()

Version

3.10.0

Description

Returns the forced decision (variationKey) for a givenOptimizelyDecisionContext. Returns theOptimizelyForcedDecision instance or null if there is no matching item.

Parameters

This table lists the required and optional parameters for the Java SDK.

Returns

A forced decisionOptimizelyForcedDecision instance for the context or null if there is no matching item.

Example

See thefull Java SDK code example.

Remove Forced Decision Method - removeForcedDecision()

Version

3.10.0

Description

Removes the forced decision (variationKey) for a givenOptimizelyDecisionContext.

Parameters

This table lists the required and optional parameters for the Java SDK.

Returns

A success/failure boolean status if the forced decision (variationKey) was removed.

Example

See thefull Java SDK code example.

Remove All Forced Decisions Method - removeAllForcedDecisions()

Version

3.10.0

Description

Removes all forced decisions (variationKey) for the user context.

Parameters

This table lists the required and optional parameters for the Java SDK.

Returns

A success/failure boolean status.

Example

See thefull Java SDK code example.

Full Code Example

/* Create the Optimizely instance and provide the sdk-key */Optimizely optimizely = OptimizelyFactory.newDefaultInstance("sdk-key");/* Create the OptimizelyUserContext, passing in the UserId and Attributes */OptimizelyUserContext user = optimizely.createUserContext("user-id", Collections.emptyMap());OptimizelyDecisionContext flagContext = new OptimizelyDecisionContext("flag-1");OptimizelyDecisionContext flagAndABTestContext = new OptimizelyDecisionContext("flag-1", "ab-test-1");OptimizelyDecisionContext flagAndDeliveryRuleContext = new OptimizelyDecisionContext("flag-1", "delivery-1");OptimizelyForcedDecision variationAForcedDecision = new OptimizelyForcedDecision("variation-a");OptimizelyForcedDecision variationBForcedDecision = new OptimizelyForcedDecision("variation-b");OptimizelyForcedDecision variationOnForcedDecision = new OptimizelyForcedDecision("on");        // set a forced decision for a flagBoolean success = user.setForcedDecision(flagContext, variationAForcedDecision);OptimizelyDecision decision = user.decide("flag-1");// set a forced decision for an ab-test rulesuccess = user.setForcedDecision(flagAndABTestContext, variationBForcedDecision);decision = user.decide("flag-1");// set a forced variation for a delivery rulesuccess = user.setForcedDecision(flagAndDeliveryRuleContext, variationOnForcedDecision);decision = user.decide("flag-1");// get forced variationsOptimizelyForcedDecision forcedDecision = user.getForcedDecision(flagContext);System.out.println("[ForcedDecision] variationKey = " + forcedDecision.getVariationKey()); // remove forced variationssuccess = user.removeForcedDecision(flagAndABTestContext);success = user.removeAllForcedDecisions();

See Also

OptimizelyUserContext

Updated 17 days ago