public CodecInteraction.CodecInteractionFactory interactionFactory()
    {
        return interactionFactory;
    }
Returns a hash-consing factory for codec interactions.
These interactions are the transitions in the state machine.
@see CodecInteraction
@return a hash-consing factory for codec interactions.
sbe-tool/src/main/java/uk/co/real_logic/sbe/generation/common/FieldPrecedenceModel.java