Online Cache Group Policy

Adding MBOs to a cache group that uses the Online policy indicates that the MBOs are to be used only in Workflow forms where access to real-time enterprise information system (EIS) data is required (cache validity is zero). Data is delivered to the Workflow client based on the findByParameter object query definition. Data is valid in the Unwired Server cache only until delivery. Expired data is purged from the cache based on a schedule.

Unwired Platform behavior and usage for MBOs using the Online cache group policy includes:

Unwired WorkSpace

Synchronization – MBO defined synchronization is disabled:
- The Properties view excludes the Synchronization tab.
- The Load Parameters tab in the Properties view excludes the Synchronization Parameter column.
- You cannot add MBOs to any synchronization groups.
Cache Update Policies – Cache update policies are disabled for all operations. All operations use a No cache update policy.
Load Parameters – Map Propagate to attributes to Load parameters from the Load Parameters tab. The generated findByParameter object query parameters used by the Workflow form are automatically generated based on these mappings. You cannot map load parameters to synchronization parameters.
Object Queries – one read-only object query named findByParameter is automatically generated by Unwired WorkSpace. By default, the return type is "Return multiple objects" and "Create an index" is true. These are the only values you can modify. findByParameter query parameters are generated for every load parameter that has a "Propagate-to attribute".
Note: The findByPrimaryKey object query and any other user-defined object queries are removed, and all buttons are disabled. An MBO using the Online cache policy must have at least one load parameter-to-Propagate to attribute mapping.

If you modify a "Propagate To attribute" of a load parameter belonging to an MBO using an Online cache group policy, the object query is automatically updated.
Code Generation – MBOs using the Online cache group policy are not supported by the Device Application Designer. When generating code, Unwired WorkSpace filters out these MBOs; they are not included in Object API code.
Deployment – if you select replication-based synchronization from the Deployment wizard, any MBO using the Online Cache Group policy is unavailable for deployment. Mobile Workflow forms support only message-based synchronization.

Mobile Workflow Forms Editor

Specify and bind keys as usual; the input data binding source (findByParameter) determines the operation load parameters.

Sybase Control Center

The Online cache group policy includes a defined schedule to delete expired data from the cache at the domain level. In the Sybase Control Center documentation, see Domains > Default > Scheduled Tasks > Online Cache Cleanup