org.apache.carbondata.hadoop.readsupport

Interface CarbonReadSupport<T>

All Known Implementing Classes:

AbstractDictionaryDecodedReadSupport, ArrayWritableReadSupport, DictionaryDecodedReadSupportImpl, RawDataReadSupport

public interface CarbonReadSupport<T>

It converts to the desired class while reading the rows from RecordReader

Method Summary

Modifier and Type	Method and Description
void	close() This method will be used to clear the dictionary cache and update access count for each column involved which will be used during eviction of columns from LRU cache if memory reaches threshold
void	intialize(CarbonColumn[] carbonColumns, AbsoluteTableIdentifier absoluteTableIdentifier) It can use [CarbonColumn] array to create its own schema to create its row.
T	readRow(Object[] data)

Method Detail

intialize

void intialize(CarbonColumn[] carbonColumns,
               AbsoluteTableIdentifier absoluteTableIdentifier)

It can use [CarbonColumn] array to create its own schema to create its row.

Parameters:

carbonColumns -

readRow

T readRow(Object[] data)

close

void close()

This method will be used to clear the dictionary cache and update access count for each column involved which will be used during eviction of columns from LRU cache if memory reaches threshold