org.apache.parquet.filter

Class ColumnPredicates

java.lang.Object

org.apache.parquet.filter.ColumnPredicates

public class ColumnPredicates
extends Object

ColumnPredicates class provides checks for column values. Factory methods are provided for standard predicates which wrap the job of getting the correct value from the column.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	ColumnPredicates.BooleanPredicateFunction
static interface	ColumnPredicates.DoublePredicateFunction
static interface	ColumnPredicates.FloatPredicateFunction
static interface	ColumnPredicates.IntegerPredicateFunction
static interface	ColumnPredicates.LongPredicateFunction
static interface	ColumnPredicates.Predicate
static interface	ColumnPredicates.PredicateFunction<T>

Constructor Summary

Constructors

Constructor and Description
ColumnPredicates()

Method Summary

Methods

Modifier and Type	Method and Description
static ColumnPredicates.Predicate	applyFunctionToBinary(ColumnPredicates.PredicateFunction<Binary> fn)
static ColumnPredicates.Predicate	applyFunctionToBoolean(ColumnPredicates.BooleanPredicateFunction fn)
static ColumnPredicates.Predicate	applyFunctionToDouble(ColumnPredicates.DoublePredicateFunction fn)
static ColumnPredicates.Predicate	applyFunctionToFloat(ColumnPredicates.FloatPredicateFunction fn)
static ColumnPredicates.Predicate	applyFunctionToInteger(ColumnPredicates.IntegerPredicateFunction fn)
static ColumnPredicates.Predicate	applyFunctionToLong(ColumnPredicates.LongPredicateFunction fn)
static ColumnPredicates.Predicate	applyFunctionToString(ColumnPredicates.PredicateFunction<String> fn)
static ColumnPredicates.Predicate	equalTo(boolean target)
static ColumnPredicates.Predicate	equalTo(double target)
static <E extends Enum> ColumnPredicates.Predicate	equalTo(E target)
static ColumnPredicates.Predicate	equalTo(float target)
static ColumnPredicates.Predicate	equalTo(int target)
static ColumnPredicates.Predicate	equalTo(long target)
static ColumnPredicates.Predicate	equalTo(String target)

Methods inherited from class java.lang.Object

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

Constructor Detail

ColumnPredicates

public ColumnPredicates()

Method Detail

equalTo

public static ColumnPredicates.Predicate equalTo(String target)

applyFunctionToString

public static ColumnPredicates.Predicate applyFunctionToString(ColumnPredicates.PredicateFunction<String> fn)

equalTo

public static ColumnPredicates.Predicate equalTo(int target)

applyFunctionToInteger

public static ColumnPredicates.Predicate applyFunctionToInteger(ColumnPredicates.IntegerPredicateFunction fn)

equalTo

public static ColumnPredicates.Predicate equalTo(long target)

applyFunctionToLong

public static ColumnPredicates.Predicate applyFunctionToLong(ColumnPredicates.LongPredicateFunction fn)

equalTo

public static ColumnPredicates.Predicate equalTo(float target)

applyFunctionToFloat

public static ColumnPredicates.Predicate applyFunctionToFloat(ColumnPredicates.FloatPredicateFunction fn)

equalTo

public static ColumnPredicates.Predicate equalTo(double target)

applyFunctionToDouble

public static ColumnPredicates.Predicate applyFunctionToDouble(ColumnPredicates.DoublePredicateFunction fn)

equalTo

public static ColumnPredicates.Predicate equalTo(boolean target)

applyFunctionToBoolean

public static ColumnPredicates.Predicate applyFunctionToBoolean(ColumnPredicates.BooleanPredicateFunction fn)

equalTo

public static <E extends Enum> ColumnPredicates.Predicate equalTo(E target)

applyFunctionToBinary

public static ColumnPredicates.Predicate applyFunctionToBinary(ColumnPredicates.PredicateFunction<Binary> fn)