Law Of Demeter

Talk to direct collaborators, not strangers reached through them.

Workflow

1. Find call chains such as a.getB().getC().doX() and code that navigates object structure.

2. Identify the decision or behavior being performed by the caller.

3. Move that behavior to the object that owns the needed knowledge.

4. Replace navigation with intention-revealing methods.

5. Keep DTO, builder, and fluent API exceptions explicit; not every chain is a domain coupling problem.

Checks

• Train wrecks expose structure and make callers fragile.