A Constraint is a listener to aDatabasethat evaluates the compliance of observedDatabase'scurrent state with thisconstraint.
Represents the current state of an solution process.
Represents data and its constraints that need to be satisfied.
A Line represents a tuple of values which is stored at arelational table.
A listener that observers changes of aDatabase.
Represents a generalized assignment problem where each demand can be assigned to
multiple supplies.
Extendsrelational tableswith a mutation and subscriber interface.
Represent a type saferelational table.
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