Configuring schema selections using Spring Beans
This page describes the extension points introduced in MR 4.0.0 that allow you to customize the schema selections through Spring Beans.
Concept
Schema selections for individual datastores are now configurable through Spring Beans.
Several bean types are used to configure the selection:
| Bean type | Details | Datastores |
|---|---|---|
Function<IDatastoreSchemaDescription, ISelectionDescription> |
Main schema selection bean, which takes a datastore schema description and applies a series of selection API calls, resulting in a selection description. | All datastores expose this bean. |
BiFunction<IDatastoreSchemaDescription, String , T> |
The base selection for a given datastore and base store name. Used as a parameter for the main bean, will be applied to the created selection description. | All datastores expose and apply this bean. |
BiFunction<CanUseOtherReference, String , T> |
Common selection for multiple datastores. Used as a parameter for the main bean, will be applied to the created selection description. | Exposed by the common datastore configuration. Applied to the selections of the complete Sensitivity, PnL, and VaR datastores. |
List<UnaryOperator<CanUseOtherReference>> |
Extra selections for a given datastore. Used as a parameter for the main bean, will be applied to the created selection description. | All datastores apply this bean. |
note
The T class used in the table above is an extension of the ActivePivot core CanUseOtherReference and CanBuild interfaces.
Most schema selections are configured by default to select all fields in the base store. Therefore, fields added to those stores don’t require a customization to the schema selection.
This mechanism is intended to support use-cases where the default behaviour is inappropriate:
- a field is added to the store for direct queries only, and shouldn’t be included in the cube
- a key field is added to multiple stores and the references between them, and shouldn’t be selected multiple times
- the selection of the common stores (e.g. Trade Attributes, BookHierarchy) needs to be changed
- the selection for an entire datastore needs to be modified
Available Qualifiers
The customization Beans are annotated with a @Qualifier, explicitly defining the datastore to which the customization applies.
All @Qualifier constants are defined in the SpringConstants class.
| Constant | Qualifier | Datastore |
|---|---|---|
| SP_QUALIFIER__COMMON_SCHEMA_SELECTION | “common-schema-selection” | Common |
| SP_QUALIFIER__PNL_BASE_SELECTION | “pnl-base-selection” | PnL |
| SP_QUALIFIER__PNL_EXTRA_SELECTION | “pnl-extra-selection” | PnL |
| SP_QUALIFIER__PNL_SCHEMA_SELECTION | “pnl-schema-selection” | PnL |
| SP_QUALIFIER__PNL_SUMMARY_BASE_SELECTION | “pnl-summary-base-selection” | PnL Summary |
| SP_QUALIFIER__PNL_SUMMARY_EXTRA_SELECTION | “pnl-summary-extra-selection” | PnL Summary |
| SP_QUALIFIER__PNL_SUMMARY_SCHEMA_SELECTION | “pnl-summary-schema-selection” | PnL Summary |
| SP_QUALIFIER__SENSITIVITY_BASE_SELECTION | “sensitivity-base-selection” | Sensitivity |
| SP_QUALIFIER__SENSITIVITY_EXTRA_SELECTION | “sensitivity-extra-selection” | Sensitivity |
| SP_QUALIFIER__SENSITIVITY_SCHEMA_SELECTION | “sensitivity-schema-selection” | Sensitivity |
| SP_QUALIFIER__SENSITIVITY_SUMMARY_BASE_SELECTION | “sensitivity-summary-base-selection” | Sensitivity Summary |
| SP_QUALIFIER__SENSITIVITY_SUMMARY_EXTRA_SELECTION | “sensitivity-summary-extra-selection” | Sensitivity Summary |
| SP_QUALIFIER__SENSITIVITY_SUMMARY_SCHEMA_SELECTION | “sensitivity-summary-schema-selection” | Sensitivity Summary |
| SP_QUALIFIER__VAR_BASE_SELECTION | “var-base-selection” | VaR |
| SP_QUALIFIER__VAR_EXTRA_SELECTION | “var-extra-selection” | VaR |
| SP_QUALIFIER__VAR_SCHEMA_SELECTION | “var-schema-selection” | VaR |
| SP_QUALIFIER__VAR_SUMMARY_BASE_SELECTION | “var-summary-base-selection” | VaR Summary |
| SP_QUALIFIER__VAR_SUMMARY_EXTRA_SELECTION | “var-summary-extra-selection” | VaR Summary |
| SP_QUALIFIER__VAR_SUMMARY_SCHEMA_SELECTION | “var-summary-schema-selection” | VaR Summary |
| SP_QUALIFIER__MARKET_DATA_BASE_SELECTION | “market-data-base-selection” | Market Data |
| SP_QUALIFIER__MARKET_DATA_EXTRA_SELECTION | “market-data-extra-selection” | Market Data |
| SP_QUALIFIER__MARKET_DATA_SCHEMA_SELECTION | “market-data-schema-selection” | Market Data |