Model

The jpipe-model module defines the internal representation of a compiled jPipe file. It is structured around four packages.

Packages

model.elements and model

The element hierarchy is rooted at the sealed interface JustificationElement. Elements that appear in both justifications and templates implement CommonElement; AbstractSupport is template-only.

Support relationships are encoded directly via typed fields and one marker interface:

• SupportLeaf — marker for elements that can act as direct supporters of a strategy (SubConclusion, Evidence, AbstractSupport).
• Conclusion and SubConclusion each hold a single supporter : Strategy. Cardinality is enforced via addSupport which prevents multiple assignments.
• Strategy holds a list of supporters (List<SupportLeaf>). Multiple elements can support a single strategy (e.g., shared evidence or convergence).

JustificationModel<E> is the sealed base for Justification (accepts only CommonElement) and Template (accepts any JustificationElement). A Unit is the root produced by compiling one .jd file.

commands / commands.creation

Model construction uses the Command pattern. RegularCommand is the base for all concrete commands. The ExecutionEngine handles deferred execution (commands whose condition is not yet met), macro expansion, and deadlock detection.

visitor

JustificationVisitor<R> provides a typed traversal over the full element hierarchy. All model nodes implement accept.