Package org.apache.druid.segment.data

Class CompressedVSizeColumnarIntsSupplier

java.lang.Object

org.apache.druid.segment.data.CompressedVSizeColumnarIntsSupplier

All Implemented Interfaces:

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

public class CompressedVSizeColumnarIntsSupplier
extends Object
implements WritableSupplier<ColumnarInts>

Field Summary

Fields

Modifier and Type	Field	Description
static byte	VERSION

Method Summary

Modifier and Type	Method	Description
static CompressedVSizeColumnarIntsSupplier	fromByteBuffer(ByteBuffer buffer, ByteOrder order)
static CompressedVSizeColumnarIntsSupplier	fromByteBuffer(ByteBuffer buffer, ByteOrder order, SmooshedFileMapper mapper)
static CompressedVSizeColumnarIntsSupplier	fromList(it.unimi.dsi.fastutil.ints.IntList list, int maxValue, 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.java.util.common.io.smoosh.FileSmoosher) call.
static int	maxIntsInBufferForBytes(int numBytes)
static int	maxIntsInBufferForValue(int maxValue)
void	writeTo(WritableByteChannel channel, FileSmoosher smoosher)	Writes serialized form of this object to the given channel.

Methods inherited from class java.lang.Object

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

Field Detail

VERSION

public static final byte VERSION

See Also:

Constant Field Values

Method Detail

maxIntsInBufferForBytes

public static int maxIntsInBufferForBytes(int numBytes)

maxIntsInBufferForValue

public static int maxIntsInBufferForValue(int maxValue)

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.java.util.common.io.smoosh.FileSmoosher) call.

Specified by:

getSerializedSize in interface Serializer

writeTo

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

Description copied from interface: Serializer

Writes serialized form of this object to the given channel. If parallel data streams are needed, they could be created with the provided smoosher.

Specified by:

writeTo in interface Serializer

Throws:

IOException

fromByteBuffer

public static CompressedVSizeColumnarIntsSupplier fromByteBuffer(ByteBuffer buffer,
                                                                 ByteOrder order)

fromByteBuffer

public static CompressedVSizeColumnarIntsSupplier fromByteBuffer(ByteBuffer buffer,
                                                                 ByteOrder order,
                                                                 SmooshedFileMapper mapper)

fromList

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