read_through_cache complements write_behind

Source: Pattern·Target: Pattern

Summary

Read-through handles cache population on miss; write-behind handles cache population on write. Together they form a complete transparent cache layer.

·read_through_cache lists write_behind_cache in related_patterns and handles only the read path, leaving invalidation to the write side (patterns/read_through_cache.yaml)
·write_behind_cache handles the write path: writes go to cache, acknowledged immediately, flushed asynchronously (patterns/write_behind_cache.yaml)

Grounded, 2 supporting items

Read-through covers reads, write-behind covers writes; complementary halves of a cache.