io.prestosql.plugin.hive

Class HivePageSourceProvider.ColumnMapping

java.lang.Object

io.prestosql.plugin.hive.HivePageSourceProvider.ColumnMapping

Enclosing class:

HivePageSourceProvider

public static class HivePageSourceProvider.ColumnMapping
extends Object

Method Summary

Modifier and Type	Method and Description
static List<HivePageSourceProvider.ColumnMapping>	buildColumnMappings(List<HivePartitionKey> partitionKeys, List<HiveColumnHandle> columns, List<HiveColumnHandle> requiredInterimColumns, TableToPartitionMapping tableToPartitionMapping, org.apache.hadoop.fs.Path path, OptionalInt bucketNumber, long fileSize, long fileModifiedTime)
static HivePageSourceProvider.ColumnMapping	empty(HiveColumnHandle hiveColumnHandle)
static List<HivePageSourceProvider.ColumnMapping>	extractRegularAndInterimColumnMappings(List<HivePageSourceProvider.ColumnMapping> columnMappings)
Optional<HiveType>	getBaseTypeCoercionFrom()
HiveColumnHandle	getHiveColumnHandle()
int	getIndex()
HivePageSourceProvider.ColumnMappingKind	getKind()
String	getPrefilledValue()
static HivePageSourceProvider.ColumnMapping	interim(HiveColumnHandle hiveColumnHandle, int index, Optional<HiveType> baseTypeCoercionFrom)
static HivePageSourceProvider.ColumnMapping	prefilled(HiveColumnHandle hiveColumnHandle, String prefilledValue, Optional<HiveType> baseTypeCoercionFrom)
static HivePageSourceProvider.ColumnMapping	regular(HiveColumnHandle hiveColumnHandle, int index, Optional<HiveType> baseTypeCoercionFrom)
static List<HiveColumnHandle>	toColumnHandles(List<HivePageSourceProvider.ColumnMapping> regularColumnMappings, boolean doCoercion, TypeManager typeManager)

Methods inherited from class java.lang.Object

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

Method Detail

regular

public static HivePageSourceProvider.ColumnMapping regular(HiveColumnHandle hiveColumnHandle,
                                                           int index,
                                                           Optional<HiveType> baseTypeCoercionFrom)

prefilled

public static HivePageSourceProvider.ColumnMapping prefilled(HiveColumnHandle hiveColumnHandle,
                                                             String prefilledValue,
                                                             Optional<HiveType> baseTypeCoercionFrom)

interim

public static HivePageSourceProvider.ColumnMapping interim(HiveColumnHandle hiveColumnHandle,
                                                           int index,
                                                           Optional<HiveType> baseTypeCoercionFrom)

empty

public static HivePageSourceProvider.ColumnMapping empty(HiveColumnHandle hiveColumnHandle)

getKind

public HivePageSourceProvider.ColumnMappingKind getKind()

getPrefilledValue

public String getPrefilledValue()

getHiveColumnHandle

public HiveColumnHandle getHiveColumnHandle()

getIndex

public int getIndex()

getBaseTypeCoercionFrom

public Optional<HiveType> getBaseTypeCoercionFrom()

buildColumnMappings

public static List<HivePageSourceProvider.ColumnMapping> buildColumnMappings(List<HivePartitionKey> partitionKeys,
                                                                             List<HiveColumnHandle> columns,
                                                                             List<HiveColumnHandle> requiredInterimColumns,
                                                                             TableToPartitionMapping tableToPartitionMapping,
                                                                             org.apache.hadoop.fs.Path path,
                                                                             OptionalInt bucketNumber,
                                                                             long fileSize,
                                                                             long fileModifiedTime)

extractRegularAndInterimColumnMappings

public static List<HivePageSourceProvider.ColumnMapping> extractRegularAndInterimColumnMappings(List<HivePageSourceProvider.ColumnMapping> columnMappings)

toColumnHandles

public static List<HiveColumnHandle> toColumnHandles(List<HivePageSourceProvider.ColumnMapping> regularColumnMappings,
                                                     boolean doCoercion,
                                                     TypeManager typeManager)