parquet.filter2.recordlevel

Class FilteringRecordMaterializer<T>

java.lang.Object

parquet.io.api.RecordMaterializer<T>

parquet.filter2.recordlevel.FilteringRecordMaterializer<T>

public class FilteringRecordMaterializer<T>
extends RecordMaterializer<T>

A pass-through proxy for a RecordMaterializer that updates a IncrementallyUpdatedFilterPredicate as it receives concrete values for the current record. If, after the record assembly signals that there are no more values, the predicate indicates that this record should be dropped, getCurrentRecord() returns null to signal that this record is being skipped. Otherwise, the record is retrieved from the delegate.

Constructor Summary

Constructors

Constructor and Description
FilteringRecordMaterializer(RecordMaterializer<T> delegate, List<PrimitiveColumnIO> columnIOs, Map<ColumnPath,List<IncrementallyUpdatedFilterPredicate.ValueInspector>> valueInspectorsByColumn, IncrementallyUpdatedFilterPredicate filterPredicate)

Method Summary

Methods

Modifier and Type	Method and Description
T	getCurrentRecord()
static List<Integer>	getIndexFieldPathList(PrimitiveColumnIO c)
GroupConverter	getRootConverter()
static List<Integer>	intArrayToList(int[] arr)
void	skipCurrentRecord() Called if RecordMaterializer.getCurrentRecord() isn't going to be called.

Methods inherited from class java.lang.Object

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

Constructor Detail

FilteringRecordMaterializer

public FilteringRecordMaterializer(RecordMaterializer<T> delegate,
                           List<PrimitiveColumnIO> columnIOs,
                           Map<ColumnPath,List<IncrementallyUpdatedFilterPredicate.ValueInspector>> valueInspectorsByColumn,
                           IncrementallyUpdatedFilterPredicate filterPredicate)

Method Detail

getIndexFieldPathList

public static List<Integer> getIndexFieldPathList(PrimitiveColumnIO c)

intArrayToList

public static List<Integer> intArrayToList(int[] arr)

getCurrentRecord

public T getCurrentRecord()

Specified by:

getCurrentRecord in class RecordMaterializer<T>

Returns:

the result of the conversion

skipCurrentRecord

public void skipCurrentRecord()

Description copied from class: RecordMaterializer

Called if RecordMaterializer.getCurrentRecord() isn't going to be called.

Overrides:

skipCurrentRecord in class RecordMaterializer<T>

getRootConverter

public GroupConverter getRootConverter()

Specified by:

getRootConverter in class RecordMaterializer<T>

Returns:

the root converter for this tree