How to write a rule which constrains Collection property size in BRMS Guided Rule Editor

Solution Unverified - Updated -

Issue

  • When a fact has a Collection property, Guided Rule Editor offers "contains/excludes/equal to/not equal to/is null/is not null" but not size related operators.
    undefined
    so I cannot construct DRL like
Company(empList.size() > 5)

Environment

  • Red Hat JBoss BRMS
    • 5.3.1

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