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Cache variables
Cache variables provide a means of processing information throughout a flow instance without requiring that the information to be passed through data links.
Cache variables locations
Cache variables can be specified at different locations.
Mapping Functions
Cache variables can be defined and manipulated through flow library, flowlib functions.

Cache variables
Cache variables provide a means of processing information throughout a flow instance without requiring that the information to be passed through data links.
- Cache variables locations
  Cache variables can be specified at different locations.
  - Mapping Functions
    Cache variables can be defined and manipulated through flow library, flowlib functions.
  - Cache nodes
    Cache nodes allow you to set cache variables using the Link UI settings dialog, in the Flow Designer canvas.
- Cache variables scope
  Cache variables are name value pairs that exist after the flow instance completes execution. Unlike flow variables, cache variables are shared, and are accessible to other flow instances that are running simultaneously. Cache variables work in the same fashion under both flow engine and non-flow engine contexts.

Mapping Functions

Cache variables can be defined and manipulated through flow library, flowlib functions.

The flowlib custom function library provides several mapping functions for handling cache variables defined for a flow. Cache variables can be set and manipulated with the flowlib mapping functions in the map rules, from a map node in the flow.

The mapping functions for manipulating cache variables are:

CACHEDELETE

CACHEREAD

CACHEWRITE

For details about these functions see the cache functions documentation.