Class QueryMultiJoinOptimizer

  • All Implemented Interfaces:
    QueryOptimizer

    public class QueryMultiJoinOptimizer
    extends Object
    implements QueryOptimizer
    A query optimizer that re-orders nested Joins.
    Author:
    Arjohn Kampman, James Leigh
    • Constructor Detail

      • QueryMultiJoinOptimizer

        public QueryMultiJoinOptimizer()
    • Method Detail

      • optimize

        public void optimize​(TupleExpr tupleExpr,
                             Dataset dataset,
                             BindingSet bindings)
        Applies generally applicable optimizations: path expressions are sorted from more to less specific.
        Specified by:
        optimize in interface QueryOptimizer