Package org.apache.druid.segment.data

Class IntermediateColumnarLongsSerializer

java.lang.Object

org.apache.druid.segment.data.IntermediateColumnarLongsSerializer

All Implemented Interfaces:

ColumnarLongsSerializer, Serializer

public class IntermediateColumnarLongsSerializer
extends Object
implements ColumnarLongsSerializer

Serializer that chooses optimal ColumnarLongs format dymamically, based on the values being written. Unsafe for concurrent use from multiple threads.

Method Summary

Modifier and Type	Method	Description
void	add(long value)
long	getSerializedSize()	Returns the number of bytes, that this Serializer will write to the output _channel_ (not smoosher) on a Serializer.writeTo(java.nio.channels.WritableByteChannel, org.apache.druid.java.util.common.io.smoosh.FileSmoosher) call.
void	open()
int	size()
void	writeTo(WritableByteChannel channel, FileSmoosher smoosher)	Writes the serialized form of this object.

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.data.ColumnarLongsSerializer

addAll

Method Details

open

public void open()

Specified by:

open in interface ColumnarLongsSerializer

size

public int size()

Specified by:

size in interface ColumnarLongsSerializer

add

public void add(long value)

Specified by:

add in interface ColumnarLongsSerializer

getSerializedSize

public long getSerializedSize()
                       throws IOException

Description copied from interface: Serializer

Returns the number of bytes, that this Serializer will write to the output _channel_ (not smoosher) on a Serializer.writeTo(java.nio.channels.WritableByteChannel, org.apache.druid.java.util.common.io.smoosh.FileSmoosher) call.

Specified by:

getSerializedSize in interface Serializer

Throws:

IOException

writeTo

public void writeTo(WritableByteChannel channel,
 FileSmoosher smoosher)
             throws IOException

Description copied from interface: Serializer

Writes the serialized form of this object. The entire object may be written to the provided channel, or the object may be split over the provided channel and files added to the

invalid @link

{@link FileSmoosher],

where additional channels can be created via FileSmoosher.addWithSmooshedWriter(String, long). The latter approach is useful when the serialized form of the object is too large for a single smoosh container. At the time this javadoc was written, the max smoosh container size is limit to the max ByteBuffer size.

Specified by:

writeTo in interface Serializer

Throws:

IOException