org.apache.parquet.filter2.predicate

Class LogicalInverseRewriter

java.lang.Object

org.apache.parquet.filter2.predicate.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.

Method Summary

Modifier and Type	Method and Description
static FilterPredicate	rewrite(FilterPredicate pred)
FilterPredicate	visit(Operators.And and)
<T extends Comparable<T>> FilterPredicate	visit(Operators.Eq<T> eq)
<T extends Comparable<T>> FilterPredicate	visit(Operators.Gt<T> gt)
<T extends Comparable<T>> FilterPredicate	visit(Operators.GtEq<T> gtEq)
<T extends Comparable<T>> FilterPredicate	visit(Operators.In<T> in)
<T extends Comparable<T>,U extends UserDefinedPredicate<T>> FilterPredicate	visit(Operators.LogicalNotUserDefined<T,U> udp)
<T extends Comparable<T>> FilterPredicate	visit(Operators.Lt<T> lt)
<T extends Comparable<T>> FilterPredicate	visit(Operators.LtEq<T> ltEq)
FilterPredicate	visit(Operators.Not not)
<T extends Comparable<T>> FilterPredicate	visit(Operators.NotEq<T> notEq)
<T extends Comparable<T>> FilterPredicate	visit(Operators.NotIn<T> notIn)
FilterPredicate	visit(Operators.Or or)
<T extends Comparable<T>,U extends UserDefinedPredicate<T>> FilterPredicate	visit(Operators.UserDefined<T,U> udp)

Methods inherited from class java.lang.Object

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

Method Detail

rewrite

public static FilterPredicate rewrite(FilterPredicate pred)

visit

public <T extends Comparable<T>> FilterPredicate visit(Operators.Eq<T> eq)

Specified by:

visit in interface FilterPredicate.Visitor<FilterPredicate>

visit

public <T extends Comparable<T>> FilterPredicate visit(Operators.NotEq<T> notEq)

Specified by:

visit in interface FilterPredicate.Visitor<FilterPredicate>

visit

public <T extends Comparable<T>> FilterPredicate visit(Operators.Lt<T> lt)

Specified by:

visit in interface FilterPredicate.Visitor<FilterPredicate>

visit

public <T extends Comparable<T>> FilterPredicate visit(Operators.LtEq<T> ltEq)

Specified by:

visit in interface FilterPredicate.Visitor<FilterPredicate>

visit

public <T extends Comparable<T>> FilterPredicate visit(Operators.Gt<T> gt)

Specified by:

visit in interface FilterPredicate.Visitor<FilterPredicate>

visit

public <T extends Comparable<T>> FilterPredicate visit(Operators.GtEq<T> gtEq)

Specified by:

visit in interface FilterPredicate.Visitor<FilterPredicate>

visit

public <T extends Comparable<T>> FilterPredicate visit(Operators.In<T> in)

Specified by:

visit in interface FilterPredicate.Visitor<FilterPredicate>

visit

public <T extends Comparable<T>> FilterPredicate visit(Operators.NotIn<T> notIn)

Specified by:

visit in interface FilterPredicate.Visitor<FilterPredicate>

visit

public FilterPredicate visit(Operators.And and)

Specified by:

visit in interface FilterPredicate.Visitor<FilterPredicate>

visit

public FilterPredicate visit(Operators.Or or)

Specified by:

visit in interface FilterPredicate.Visitor<FilterPredicate>

visit

public FilterPredicate visit(Operators.Not not)

Specified by:

visit in interface FilterPredicate.Visitor<FilterPredicate>

visit

public <T extends Comparable<T>,U extends UserDefinedPredicate<T>> FilterPredicate visit(Operators.UserDefined<T,U> udp)

Specified by:

visit in interface FilterPredicate.Visitor<FilterPredicate>

visit

public <T extends Comparable<T>,U extends UserDefinedPredicate<T>> FilterPredicate visit(Operators.LogicalNotUserDefined<T,U> udp)

Specified by:

visit in interface FilterPredicate.Visitor<FilterPredicate>