org.apache.drill.metastore.metadata

Class RowGroupMetadata

java.lang.Object

org.apache.drill.metastore.metadata.BaseMetadata

org.apache.drill.metastore.metadata.RowGroupMetadata

All Implemented Interfaces:

LocationProvider, Metadata

public class RowGroupMetadata
extends BaseMetadata
implements LocationProvider

Metadata which corresponds to the row group level of table.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	RowGroupMetadata.RowGroupMetadataBuilder

Nested classes/interfaces inherited from class org.apache.drill.metastore.metadata.BaseMetadata

BaseMetadata.BaseMetadataBuilder<T extends BaseMetadata.BaseMetadataBuilder<T>>

Field Summary

Fields inherited from class org.apache.drill.metastore.metadata.BaseMetadata

columnsStatistics, lastModifiedTime, metadataInfo, metadataStatistics, schema, tableInfo, UNDEFINED_TIME

Method Summary

Modifier and Type	Method and Description
static RowGroupMetadata.RowGroupMetadataBuilder	builder()
boolean	equals(Object o)
Map<String,Float>	getHostAffinity() Returns the host affinity for a row group.
org.apache.hadoop.fs.Path	getLocation() Returns location of the metadata.
org.apache.hadoop.fs.Path	getPath() Returns path of the metadata.
int	getRowGroupIndex() Returns index of current row group within its file.
int	hashCode()
RowGroupMetadata.RowGroupMetadataBuilder	toBuilder()
protected void	toMetadataUnitBuilder(TableMetadataUnit.Builder builder)
String	toString()

Methods inherited from class org.apache.drill.metastore.metadata.BaseMetadata

containsExactStatistics, getColumn, getColumnsStatistics, getColumnStatistics, getLastModifiedTime, getMetadataInfo, getSchema, getStatistic, getStatisticsForColumn, getTableInfo, toMetadataUnit

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Detail

getPath

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

Description copied from interface: LocationProvider

Returns path of the metadata. For files and row groups - full path to the file including file name. For segments - path to the segment directory.

Specified by:

getPath in interface LocationProvider

Returns:

metadata path

getLocation

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

Description copied from interface: LocationProvider

Returns location of the metadata. For files and row groups - path to the parent directory they reside it. For segments - path to the segment directory.

Specified by:

getLocation in interface LocationProvider

Returns:

metadata location

getRowGroupIndex

public int getRowGroupIndex()

Returns index of current row group within its file.

Returns:

row group index

getHostAffinity

public Map<String,Float> getHostAffinity()

Returns the host affinity for a row group.

Returns:

host affinity for the row group

equals

public boolean equals(Object o)

Overrides:

equals in class BaseMetadata

hashCode

public int hashCode()

Overrides:

hashCode in class BaseMetadata

toString

public String toString()

Overrides:

toString in class Object

toMetadataUnitBuilder

protected void toMetadataUnitBuilder(TableMetadataUnit.Builder builder)

Specified by:

toMetadataUnitBuilder in class BaseMetadata

toBuilder

public RowGroupMetadata.RowGroupMetadataBuilder toBuilder()

Specified by:

toBuilder in class BaseMetadata

builder

public static RowGroupMetadata.RowGroupMetadataBuilder builder()