org.apache.parquet.filter2.dictionarylevel

Class DictionaryFilter

java.lang.Object

org.apache.parquet.filter2.dictionarylevel.DictionaryFilter

All Implemented Interfaces:

FilterPredicate.Visitor<Boolean>

public class DictionaryFilter
extends Object
implements FilterPredicate.Visitor<Boolean>

Applies filters based on the contents of column dictionaries.

Method Summary

Methods

Modifier and Type	Method and Description
static boolean	canDrop(FilterPredicate pred, List<ColumnChunkMetaData> columns, DictionaryPageReadStore dictionaries)
Boolean	visit(Operators.And and)
<T extends Comparable<T>> Boolean	visit(Operators.Eq<T> eq)
<T extends Comparable<T>> Boolean	visit(Operators.Gt<T> gt)
<T extends Comparable<T>> Boolean	visit(Operators.GtEq<T> gtEq)
<T extends Comparable<T>,U extends UserDefinedPredicate<T>> Boolean	visit(Operators.LogicalNotUserDefined<T,U> udp)
<T extends Comparable<T>> Boolean	visit(Operators.Lt<T> lt)
<T extends Comparable<T>> Boolean	visit(Operators.LtEq<T> ltEq)
Boolean	visit(Operators.Not not)
<T extends Comparable<T>> Boolean	visit(Operators.NotEq<T> notEq)
Boolean	visit(Operators.Or or)
<T extends Comparable<T>,U extends UserDefinedPredicate<T>> Boolean	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

canDrop

public static boolean canDrop(FilterPredicate pred,
              List<ColumnChunkMetaData> columns,
              DictionaryPageReadStore dictionaries)

visit

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

Specified by:

visit in interface FilterPredicate.Visitor<Boolean>

visit

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

Specified by:

visit in interface FilterPredicate.Visitor<Boolean>

visit

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

Specified by:

visit in interface FilterPredicate.Visitor<Boolean>

visit

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

Specified by:

visit in interface FilterPredicate.Visitor<Boolean>

visit

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

Specified by:

visit in interface FilterPredicate.Visitor<Boolean>

visit

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

Specified by:

visit in interface FilterPredicate.Visitor<Boolean>

visit

public Boolean visit(Operators.And and)

Specified by:

visit in interface FilterPredicate.Visitor<Boolean>

visit

public Boolean visit(Operators.Or or)

Specified by:

visit in interface FilterPredicate.Visitor<Boolean>

visit

public Boolean visit(Operators.Not not)

Specified by:

visit in interface FilterPredicate.Visitor<Boolean>

visit

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

Specified by:

visit in interface FilterPredicate.Visitor<Boolean>

visit

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

Specified by:

visit in interface FilterPredicate.Visitor<Boolean>