Algebra(compares)

A set algebra that is used to perform calculations using set definition objects passed to getListData and getList. Needed to enable caching, request combining, real-time and other behaviors. By default no algebra is provided.

An example of the types of calculations behaviors will make using the algebra:

var algebra = new set.Algebra(
  set.props.id('_uid'),
  set.props.rangeInclusive("first","last")
);

var todoConnection = connect([...behaviors...],{
  algebra: algebra
});

todoConnection.algebra.id({_uid: 5, ...}); //-> 5
todoConnection.id({_uid: 5, ...}); //-> 5
todoConnection.algebra.intersection({first: 0, last: 10}, {first:5, last:20}); //-> {first:5, last:10}
todoConnection.algebra.has({first: 0, last:10}, {_uid:5, ...}); //-> true
todoConnection.algebra.has({first: 0, last:10}, {_uid:11, ...}); //-> false