Package org.apache.druid.segment.data

Class CompressedVSizeColumnarIntsSerializer

java.lang.Object

org.apache.druid.segment.data.SingleValueColumnarIntsSerializer

org.apache.druid.segment.data.CompressedVSizeColumnarIntsSerializer

All Implemented Interfaces:

ColumnarIntsSerializer, Serializer

public class CompressedVSizeColumnarIntsSerializer
extends SingleValueColumnarIntsSerializer

Streams array of integers out in the binary format described by CompressedVSizeColumnarIntsSupplier

Method Summary

Modifier and Type	Method	Description
void	addValue(int val)
static CompressedVSizeColumnarIntsSerializer	create(String columnName, SegmentWriteOutMedium segmentWriteOutMedium, String filenameBase, int maxValue, CompressionStrategy compression, Closer closer)
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()
void	writeTo(WritableByteChannel channel, FileSmoosher smoosher)	Writes the serialized form of this object.

Methods inherited from class org.apache.druid.segment.data.SingleValueColumnarIntsSerializer

addValues

Methods inherited from class java.lang.Object

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

Method Details

create

public static CompressedVSizeColumnarIntsSerializer create(String columnName,
 SegmentWriteOutMedium segmentWriteOutMedium,
 String filenameBase,
 int maxValue,
 CompressionStrategy compression,
 Closer closer)

open

public void open()
          throws IOException

Throws:

IOException

addValue

public void addValue(int val)
              throws IOException

Specified by:

addValue in class SingleValueColumnarIntsSerializer

Throws:

IOException

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.

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.

Throws:

IOException