Package org.apache.parquet.filter2.predicate

Class LogicalInverseRewriter

  • All Implemented Interfaces:
    FilterPredicate.Visitor<FilterPredicate>
    public final class LogicalInverseRewriter
extends Object
implements FilterPredicate.Visitor<FilterPredicate>
    Recursively removes all use of the not() operator in a predicate by replacing all instances of not(x) with the inverse(x), eg: not(and(eq(), not(eq(y))) -> or(notEq(), eq(y)) The returned predicate should have the same meaning as the original, but without the use of the not() operator. See also LogicalInverter, which is used to do the inversion.