org.apache.hadoop.hive.ql.io

Class AcidUtils.ParsedDeltaLight

java.lang.Object

org.apache.hadoop.hive.ql.io.AcidUtils.ParsedDeltaLight

All Implemented Interfaces:

Comparable<AcidUtils.ParsedDeltaLight>

Direct Known Subclasses:

AcidUtils.ParsedDelta

Enclosing class:

AcidUtils

@Immutable
public static class AcidUtils.ParsedDeltaLight
extends Object
implements Comparable<AcidUtils.ParsedDeltaLight>

This encapsulates info obtained form the file path. See also AcidUtils.ParsedDelta.

Method Summary

Modifier and Type	Method and Description
int	compareTo(AcidUtils.ParsedDeltaLight parsedDelta) Compactions (Major/Minor) merge deltas/bases but delete of old files happens in a different process; thus it's possible to have bases/deltas with overlapping writeId boundaries.
long	getMaxWriteId()
long	getMinWriteId()
org.apache.hadoop.fs.Path	getPath()
int	getStatementId()
long	getVisibilityTxnId()
boolean	hasStatementId()
boolean	isDeleteDelta()
static AcidUtils.ParsedDeltaLight	parse(org.apache.hadoop.fs.Path deltaDir)

Methods inherited from class java.lang.Object

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

Method Detail

parse

public static AcidUtils.ParsedDeltaLight parse(org.apache.hadoop.fs.Path deltaDir)

getMinWriteId

public long getMinWriteId()

getMaxWriteId

public long getMaxWriteId()

getPath

public org.apache.hadoop.fs.Path getPath()

hasStatementId

public boolean hasStatementId()

getStatementId

public int getStatementId()

isDeleteDelta

public boolean isDeleteDelta()

getVisibilityTxnId

public long getVisibilityTxnId()

compareTo

public int compareTo(AcidUtils.ParsedDeltaLight parsedDelta)

Compactions (Major/Minor) merge deltas/bases but delete of old files happens in a different process; thus it's possible to have bases/deltas with overlapping writeId boundaries. The sort order helps figure out the "best" set of files to use to get data. This sorts "wider" delta before "narrower" i.e. delta_5_20 sorts before delta_5_10 (and delta_11_20)

Specified by:

compareTo in interface Comparable<AcidUtils.ParsedDeltaLight>