org.apache.parquet.filter2.recordlevel

Class IncrementallyUpdatedFilterPredicateEvaluator

java.lang.Object

org.apache.parquet.filter2.recordlevel.IncrementallyUpdatedFilterPredicateEvaluator

All Implemented Interfaces:

IncrementallyUpdatedFilterPredicate.Visitor

public class IncrementallyUpdatedFilterPredicateEvaluator
extends Object
implements IncrementallyUpdatedFilterPredicate.Visitor

Determines whether an IncrementallyUpdatedFilterPredicate is satisfied or not. This implementation makes the assumption that all IncrementallyUpdatedFilterPredicate.ValueInspectors in an unknown state represent columns with a null value, and updates them accordingly.

TODO: We could also build an evaluator that detects if enough values are known to determine the outcome TODO: of the predicate and quit the record assembly early. (https://issues.apache.org/jira/browse/PARQUET-37)

Method Summary

Modifier and Type	Method and Description
static boolean	evaluate(IncrementallyUpdatedFilterPredicate pred)
boolean	visit(IncrementallyUpdatedFilterPredicate.And and)
boolean	visit(IncrementallyUpdatedFilterPredicate.Or or)
boolean	visit(IncrementallyUpdatedFilterPredicate.ValueInspector p)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

evaluate

public static boolean evaluate(IncrementallyUpdatedFilterPredicate pred)

visit

public boolean visit(IncrementallyUpdatedFilterPredicate.ValueInspector p)

Specified by:

visit in interface IncrementallyUpdatedFilterPredicate.Visitor

visit

public boolean visit(IncrementallyUpdatedFilterPredicate.And and)

Specified by:

visit in interface IncrementallyUpdatedFilterPredicate.Visitor

visit

public boolean visit(IncrementallyUpdatedFilterPredicate.Or or)

Specified by:

visit in interface IncrementallyUpdatedFilterPredicate.Visitor