org.apache.hadoop.hive.ql.io.parquet

Class FilterPredicateLeafBuilder

java.lang.Object

org.apache.hadoop.hive.ql.io.parquet.FilterPredicateLeafBuilder

public abstract class FilterPredicateLeafBuilder
extends Object

The base class for building parquet supported filter predicate in primary types.

Constructor Summary

Constructors

Constructor and Description
FilterPredicateLeafBuilder()

Method Summary

Modifier and Type	Method and Description
org.apache.parquet.filter2.predicate.FilterPredicate	buildPredicate(PredicateLeaf.Operator op, List<Object> literals, String columnName, TypeInfo columnType) Build filter predicate with multiple constants
abstract org.apache.parquet.filter2.predicate.FilterPredicate	buildPredict(PredicateLeaf.Operator op, Object constant, String columnName, TypeInfo columnType) Build predicate with a single constant

Methods inherited from class java.lang.Object

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

Constructor Detail

FilterPredicateLeafBuilder

public FilterPredicateLeafBuilder()

Method Detail

buildPredicate

public org.apache.parquet.filter2.predicate.FilterPredicate buildPredicate(PredicateLeaf.Operator op,
                                                                           List<Object> literals,
                                                                           String columnName,
                                                                           TypeInfo columnType)
                                                                    throws Exception

Build filter predicate with multiple constants

Parameters:

op - IN or BETWEEN

literals -

columnName -

columnType -

Returns:

Throws:

Exception

buildPredict

public abstract org.apache.parquet.filter2.predicate.FilterPredicate buildPredict(PredicateLeaf.Operator op,
                                                                                  Object constant,
                                                                                  String columnName,
                                                                                  TypeInfo columnType)
                                                                           throws Exception

Build predicate with a single constant

Parameters:

op - EQUALS, NULL_SAFE_EQUALS, LESS_THAN, LESS_THAN_EQUALS, IS_NULL

constant -

columnName -

columnType -

Returns:

null or a FilterPredicate, null means no filter will be executed

Throws:

Exception