Cache Handling Process

The following flow diagrams demonstrate how Flypipe interacts with a node to handle its cache management.

Case 1: node.cache is None

sequenceDiagram
  autonumber
  Flypipe->>node: node.cache is None?
  node->>Flypipe: No
  Flypipe->>node: run node
  node->>Flypipe: retrieve dataframe 

Case 2: node.cache is not None and cache exists

sequenceDiagram
  autonumber
  Flypipe->>node: node.cache is None?
  node->>Flypipe: Yes
  Flypipe->>node: Cache exists (run method `exists`)?
  node->>Flypipe: Yes
  Flypipe->>node: Read cache (run method `read`)
  node->>Flypipe: retrieve dataframe 

Case 2: node.cache is not None and cache does NOT exist

sequenceDiagram
  autonumber
  Flypipe->>node: node.cache is None?
  node->>Flypipe: Yes
  Flypipe->>node: Cache exists (run method `exists`)?
  node->>Flypipe: No
  Flypipe->>node: run node
  node->>Flypipe: retrieve dataframe
  Flypipe->>node: Save cache (run method `write`)?