Package org.apache.druid.segment.column

Class UnknownTypeComplexColumn

java.lang.Object

org.apache.druid.segment.column.UnknownTypeComplexColumn

All Implemented Interfaces:

Closeable, AutoCloseable, BaseColumn, ComplexColumn

public class UnknownTypeComplexColumn
extends Object
implements ComplexColumn

Constructor Summary

Constructors

Constructor	Description
UnknownTypeComplexColumn()

Method Summary

Modifier and Type	Method	Description
void	close()	Close and release any resources associated with this column.
Class<?>	getClazz()
int	getLength()
Object	getRowValue(int rowNum)	Return rows in the column.
String	getTypeName()
static UnknownTypeComplexColumn	instance()
ColumnValueSelector<?>	makeColumnValueSelector(ReadableOffset offset)	Optionally overridden when complex column serialization is not based on default serialization based on GenericIndexed in ComplexColumnSerializer.
VectorObjectSelector	makeVectorObjectSelector(ReadableVectorOffset offset)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.druid.segment.column.BaseColumn

makeVectorValueSelector

Constructor Detail

UnknownTypeComplexColumn

public UnknownTypeComplexColumn()

Method Detail

instance

public static UnknownTypeComplexColumn instance()

getClazz

public Class<?> getClazz()

Specified by:

getClazz in interface ComplexColumn

Returns:

Class of objects returned on calls to ComplexColumn.getRowValue(int) .

getTypeName

public String getTypeName()

Specified by:

getTypeName in interface ComplexColumn

Returns:

Typename associated with this column.

getRowValue

@Nullable
public Object getRowValue(int rowNum)

Description copied from interface: ComplexColumn

Return rows in the column.

Specified by:

getRowValue in interface ComplexColumn

Parameters:

rowNum - the row number

Returns:

row object of type same as ComplexColumn.getClazz() } at row number "rowNum" .

getLength

public int getLength()

Specified by:

getLength in interface ComplexColumn

Returns:

serialized size (in bytes) of this column. -1 for unknown

close

public void close()

Description copied from interface: ComplexColumn

Close and release any resources associated with this column.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in interface ComplexColumn

makeColumnValueSelector

public ColumnValueSelector<?> makeColumnValueSelector(ReadableOffset offset)

Description copied from interface: ComplexColumn

Optionally overridden when complex column serialization is not based on default serialization based on GenericIndexed in ComplexColumnSerializer.

Specified by:

makeColumnValueSelector in interface BaseColumn

Specified by:

makeColumnValueSelector in interface ComplexColumn

Parameters:

offset - object to retrieve row number

Returns:

the ColumnValueSelector object

makeVectorObjectSelector

public VectorObjectSelector makeVectorObjectSelector(ReadableVectorOffset offset)

Specified by:

makeVectorObjectSelector in interface BaseColumn

Specified by:

makeVectorObjectSelector in interface ComplexColumn