Package org.apache.pinot.segment.local.segment.index.inverted

Class InvertedIndexType.ReaderFactory

java.lang.Object

org.apache.pinot.segment.local.segment.index.inverted.InvertedIndexType.ReaderFactory

All Implemented Interfaces:

IndexReaderFactory<InvertedIndexReader>

Enclosing class:

InvertedIndexType

public static class InvertedIndexType.ReaderFactory
extends Object
implements IndexReaderFactory<InvertedIndexReader>

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.pinot.segment.spi.index.IndexReaderFactory

IndexReaderFactory.Default<C extends IndexConfig,R extends IndexReader>

Field Summary

Fields

Modifier and Type	Field	Description
static InvertedIndexType.ReaderFactory	INSTANCE

Method Summary

Modifier and Type	Method	Description
InvertedIndexReader	createIndexReader(SegmentDirectory.Reader segmentReader, FieldIndexConfigs fieldIndexConfigs, ColumnMetadata metadata)	Creates a InvertedIndexReader.
InvertedIndexReader	createSkippingForward(SegmentDirectory.Reader segmentReader, ColumnMetadata metadata)	Directly creates a InvertedIndexReader.

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final InvertedIndexType.ReaderFactory INSTANCE

Method Detail

createIndexReader

public InvertedIndexReader createIndexReader(SegmentDirectory.Reader segmentReader,
                                             FieldIndexConfigs fieldIndexConfigs,
                                             ColumnMetadata metadata)
                                      throws IOException,
                                             IndexReaderConstraintException

Creates a InvertedIndexReader. Unless createSkippingForward(SegmentDirectory.Reader, ColumnMetadata), this method first try to use the forward index reader in case it is also an inverted index. That is the case, for example, when the column is sorted and single value.

Specified by:

createIndexReader in interface IndexReaderFactory<InvertedIndexReader>

Throws:

IOException

IndexReaderConstraintException

createSkippingForward

public InvertedIndexReader createSkippingForward(SegmentDirectory.Reader segmentReader,
                                                 ColumnMetadata metadata)
                                          throws IOException

Directly creates a InvertedIndexReader. Unless createIndexReader(org.apache.pinot.segment.spi.store.SegmentDirectory.Reader, org.apache.pinot.segment.spi.index.FieldIndexConfigs, org.apache.pinot.segment.spi.ColumnMetadata), this method always tries to create the actual inverted index reader instead of try to use the forward index when the column is sorted and single value.

Throws:

IOException