org.apache.paimon.predicate

Interface Predicate

All Superinterfaces:

Serializable

All Known Implementing Classes:

CompoundPredicate, LeafPredicate

@Public
public interface Predicate
extends Serializable

Predicate which returns Boolean and provides testing by stats.

Since:

0.4.0

See Also:

PredicateBuilder

Method Summary

Modifier and Type	Method and Description
Optional<Predicate>	negate()
boolean	test(InternalRow row) Test based on the specific input row.
boolean	test(long rowCount, InternalRow minValues, InternalRow maxValues, InternalArray nullCounts) Test based on the statistical information to determine whether a hit is possible.
<T> T	visit(PredicateVisitor<T> visitor)

Method Detail

test

boolean test(InternalRow row)

Test based on the specific input row.

Returns:

return true when hit, false when not hit.

test

boolean test(long rowCount,
             InternalRow minValues,
             InternalRow maxValues,
             InternalArray nullCounts)

Test based on the statistical information to determine whether a hit is possible.

Returns:

return true is likely to hit (there may also be false positives), return false is absolutely not possible to hit.

negate

Optional<Predicate> negate()

Returns:

the negation predicate of this predicate if possible.

visit

<T> T visit(PredicateVisitor<T> visitor)