Package org.apache.druid.segment.data

Class CompressedColumnarIntsSupplier

java.lang.Object

org.apache.druid.segment.data.CompressedColumnarIntsSupplier

All Implemented Interfaces:

com.google.common.base.Supplier<ColumnarInts>, Supplier<ColumnarInts>, WritableSupplier<ColumnarInts>, Serializer

public class CompressedColumnarIntsSupplier
extends Object
implements WritableSupplier<ColumnarInts>

Field Summary

Fields

Modifier and Type	Field	Description
static final int	MAX_INTS_IN_BUFFER
static final byte	VERSION

Method Summary

Modifier and Type	Method	Description
static CompressedColumnarIntsSupplier	fromByteBuffer(ByteBuffer buffer, ByteOrder order, SegmentFileMapper mapper)
static CompressedColumnarIntsSupplier	fromList(it.unimi.dsi.fastutil.ints.IntArrayList list, int chunkFactor, ByteOrder byteOrder, CompressionStrategy compression, Closer closer)
ColumnarInts	get()
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.segment.file.SegmentFileBuilder) call.
void	writeTo(WritableByteChannel channel, SegmentFileBuilder fileBuilder)	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

Field Details

VERSION

public static final byte VERSION

See Also:

• Constant Field Values

MAX_INTS_IN_BUFFER

public static final int MAX_INTS_IN_BUFFER

See Also:

• Constant Field Values

Method Details

get

public ColumnarInts get()

Specified by:

get in interface com.google.common.base.Supplier<ColumnarInts>

Specified by:

get in interface Supplier<ColumnarInts>

getSerializedSize

public long getSerializedSize()

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.segment.file.SegmentFileBuilder) call.

Specified by:

getSerializedSize in interface Serializer

writeTo

public void writeTo(WritableByteChannel channel,
 SegmentFileBuilder fileBuilder)
             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 {@link SegmentFileBuilder], where additional channels can be created via SegmentFileBuilder.addWithChannel(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

fromByteBuffer

public static CompressedColumnarIntsSupplier fromByteBuffer(ByteBuffer buffer,
 ByteOrder order,
 SegmentFileMapper mapper)

fromList

public static CompressedColumnarIntsSupplier fromList(it.unimi.dsi.fastutil.ints.IntArrayList list,
 int chunkFactor,
 ByteOrder byteOrder,
 CompressionStrategy compression,
 Closer closer)