SAP ABAP Data Element S_PCO_CACHE_MODE (PCo: Cache Mode)
Hierarchy
SAP_BASIS (Software Component) SAP Basis Component
   BC-SRV-PCO (Application Component) Plant Connectivity (Pco): ABAP part
     S_PCO (Package) Plant Connectivity: Business Suite Integration (ABAP Part)
Basic Data
Data Element S_PCO_CACHE_MODE
Short Description PCo: Cache Mode  
Data Type
Category of Dictionary Type D   Domain
Type of Object Referenced     No Information
Domain / Name of Reference Type S_PCO_CACHE_MODE    
Data Type NUMC   Character string with only digits 
Length 1    
Decimal Places 0    
Output Length 1    
Value Table      
Further Characteristics
Search Help: Name    
Search Help: Parameters    
Parameter ID   
Default Component name    
Change document    
No Input History    
Basic direction is set to LTR    
No BIDI Filtering    
Field Label
  Length  Field Label  
Short 10 Cache Mode 
Medium 15 Cache Mode 
Long 20 Cache Mode 
Heading 15 Cache Mode 
Documentation

Definition

Specifies the cache mode that is passed on by PCo. You define the cache mode for an agent instance on the Tag Query tab page in the PCo console.

Use

You can define the following cache modes in PCo:

  • None

    With this setting, the memory is empty. All data is retrieved directly from the data source during the querying. With this setting, performance is poorest.

  • Demand

    With this setting, tags and metadata are queried on demand and added to the internal cache.

  • Alias

    You use this setting if you have previously created an alias for the source system. An alias is a user-defined structure for tags, metadata, and secondary elements. The alias is loaded when the agent is started. Use of an alias is the recommended approach.

  • Cache

    With this setting, all tags from the data source are queried and stored in the memory. Metadata is retrieved if a tag is requested.

Dependencies

Example

History
Last changed by/on SAP  20110908 
SAP Release Created in 703