Package org.apache.parquet.filter2.predicate

Class ContainsRewriter

java.lang.Object

org.apache.parquet.filter2.predicate.ContainsRewriter

All Implemented Interfaces:

FilterPredicate.Visitor<FilterPredicate>

public final class ContainsRewriter
extends Object
implements FilterPredicate.Visitor<FilterPredicate>

Recursively rewrites Contains predicates composed using And or Or into a single Contains predicate containing all predicate assertions. This is a performance optimization, as all composed Contains sub-predicates must share the same column, and can therefore be applied efficiently as a single predicate pass.

Method Summary

Modifier and Type	Method	Description
static FilterPredicate	rewrite(FilterPredicate pred)
FilterPredicate	visit(Operators.And and)
<T extends Comparable<T>> FilterPredicate	visit(Operators.Contains<T> contains)
<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 <T extends Comparable<T>> FilterPredicate visit(Operators.Contains<T> contains)

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>