Setting up context values

This page provides a description of how the default context values are set up. The techniques employed are generic examples that can be extended, adapted and repeated for any use case. In all cases, minimal changes are made to the Reference Implementation. For more information about context values please see the Atoti Server documentation: Context Values.

Data Cube Context Values

The context values are defined in the configuration class ContextValueConfig within frtb-starter/src/main/java/com/activeviam/frtb/starter/cfg/impl as separate beans for each cube. The following table lists the bean defined for each data cube.

Cube	Bean name
StandardisedApproachCube	contextValueStandardisedApproachCube
InternalModelApproachCube	contextValueInternalModelApproachCube
IMADRCCube	contextValueIMADRCCube
PLCube	contextValuePLCube
StressedCalibrationCube	contextValueStressedCalibrationCube
FRTBCombinedCube	contextValueFRTBCombinedCube

Query Cube Context Values

In a distributed deployment, query cubes use the same context value beans as their corresponding data cubes.

Query Cube	Uses Bean from
SAQueryCube	contextValueStandardisedApproachCube
IMAQueryCube	contextValueInternalModelApproachCube
IMADRCQueryCube	contextValueIMADRCCube
PLQueryCube	contextValuePLCube
StressCalibrationQueryCube	contextValueStressedCalibrationCube

Example

@Bean
public List<IContextValue> contextValuePLCube(@Value("${" + CTX_QUERIES_TIME_LIMIT_DATA + ":300}") int queriesTimeLimit,
    @Value("${" + CTX_QUERIES_RESULT_LIMIT_INTERMEDIATE_SIZE + ":" + DEFAULT_INTERMEDIATE_LIMIT + "}") int queriesResultLimitIntermediateSize,
    @Value("${" + CTX_QUERIES_RESULT_LIMIT_TRANSIENT_SIZE + ":" + DEFAULT_TRANSIENT_LIMIT + "}") long queriesResultLimitTransientSize,
    @Value("${" + CTX_BACK_TESTING_LOOKBACK + ":250}") String backTesting,
    @Value("${" + CTX_PLA_LOOKBACK + ":250}") String plaLookBack
){
	return List.of(
		QueriesTimeLimit.of(queriesTimeLimit,TimeUnit.SECONDS),
		[...]
	);
}

​Data Cube Context Values

​Query Cube Context Values

​Example

Data Cube Context Values

Query Cube Context Values

Example