[overlord-issues] [JBoss JIRA] (ARTIF-733) Improve expansion/derivation relationship lookups

Improve expansion/derivation relationship lookups ------------------------------------------------- Key: ARTIF-733 URL: https://issues.jboss.org/browse/ARTIF-733 Project: Artificer Issue Type: Enhancement Reporter: Brett Meyer Assignee: Brett Meyer Fix For: 1.0.0.Beta3 When an expanded or derived artifact is persisted, it typically results in a slew of query-by-UUID hits on the DB, often ones that are repetitious. Instead, hold a map of UUIDs and artifacts in memory for that unit of work, reducing the lookups.