Package org.apache.druid.segment

Class IndexIO

java.lang.Object

org.apache.druid.segment.IndexIO

public class IndexIO
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	IndexIO.DefaultIndexIOHandler

Field Summary

Fields

Modifier and Type	Field	Description
static final ByteOrder	BYTE_ORDER
static final int	CURRENT_VERSION_ID
static final BitmapSerdeFactory	LEGACY_FACTORY
static final String	V10_FILE_NAME
static final byte	V10_VERSION
static final byte	V8_VERSION
static final byte	V9_VERSION

Constructor Summary

Constructors

Constructor	Description
IndexIO(com.fasterxml.jackson.databind.ObjectMapper mapper, ColumnConfig columnConfig)

Method Summary

Modifier and Type	Method	Description
static void	checkFileSize(File indexFile)
QueryableIndex	loadIndex(File inDir)
QueryableIndex	loadIndex(File inDir, boolean lazy, SegmentLazyLoadFailCallback loadFailed)
static File	makeDimFile(File dir, String dimension)
static File	makeMetricFile(File dir, String metricName, ByteOrder order)
static File	makeTimeFile(File dir, ByteOrder order)
void	validateTwoSegments(File dir1, File dir2)
void	validateTwoSegments(IndexableAdapter adapter1, IndexableAdapter adapter2)

Methods inherited from class java.lang.Object

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

Field Details

V8_VERSION

public static final byte V8_VERSION

See Also:

• Constant Field Values

V9_VERSION

public static final byte V9_VERSION

See Also:

• Constant Field Values

V10_VERSION

public static final byte V10_VERSION

See Also:

• Constant Field Values

CURRENT_VERSION_ID

public static final int CURRENT_VERSION_ID

See Also:

• Constant Field Values

LEGACY_FACTORY

public static final BitmapSerdeFactory LEGACY_FACTORY

V10_FILE_NAME

public static final String V10_FILE_NAME

See Also:

• Constant Field Values

BYTE_ORDER

public static final ByteOrder BYTE_ORDER

Constructor Details

IndexIO

@Inject
public IndexIO(com.fasterxml.jackson.databind.ObjectMapper mapper,
 ColumnConfig columnConfig)

Method Details

validateTwoSegments

public void validateTwoSegments(File dir1,
 File dir2)
                         throws IOException

Throws:

IOException

validateTwoSegments

public void validateTwoSegments(IndexableAdapter adapter1,
 IndexableAdapter adapter2)

loadIndex

public QueryableIndex loadIndex(File inDir)
                         throws IOException

Throws:

IOException

loadIndex

public QueryableIndex loadIndex(File inDir,
 boolean lazy,
 SegmentLazyLoadFailCallback loadFailed)
                         throws IOException

Throws:

IOException

checkFileSize

public static void checkFileSize(File indexFile)
                          throws IOException

Throws:

IOException

makeDimFile

public static File makeDimFile(File dir,
 String dimension)

makeTimeFile

public static File makeTimeFile(File dir,
 ByteOrder order)

makeMetricFile

public static File makeMetricFile(File dir,
 String metricName,
 ByteOrder order)