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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.
Cache nodes
Cache nodes allow you to set cache variables using the Link UI settings dialog, in the Flow Designer canvas.

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.

Cache nodes

Cache nodes allow you to set cache variables using the Link UI settings dialog, in the Flow Designer canvas.

Cache Read node and Cache Write node allow you to read and set cache variables in the cache. You must specify a cache variable for cache node types, in order for them to function properly during flow execution.

For details about these nodes see the Cache Read node and Cache Write node documentation.