Package org.apache.druid.segment.data

Class VSizeColumnarMultiInts

java.lang.Object

org.apache.druid.segment.data.VSizeColumnarMultiInts

All Implemented Interfaces:

com.google.common.base.Supplier<ColumnarMultiInts>, Closeable, AutoCloseable, Iterable<IndexedInts>, Supplier<ColumnarMultiInts>, HotLoopCallee, ColumnarMultiInts, Indexed<IndexedInts>, WritableSupplier<ColumnarMultiInts>, Serializer

public class VSizeColumnarMultiInts
extends Object
implements ColumnarMultiInts, WritableSupplier<ColumnarMultiInts>

Method Summary

Modifier and Type	Method	Description
void	close()
static VSizeColumnarMultiInts	fromIterable(Iterable<VSizeColumnarInts> objectsIterable)
ColumnarMultiInts	get()
VSizeColumnarInts	get(int index)	Returns the values at a given row index.
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.
IndexedInts	getUnshared(int index)	Returns the values at a given row index.
int	indexOf(IndexedInts value)	Returns the index of "value" in this Indexed object, or a negative number if the value is not present.
void	inspectRuntimeShape(RuntimeShapeInspector inspector)	Implementations of this method should call inspector.visit() with all fields of this class, which meet two conditions: 1.
Iterator<IndexedInts>	iterator()
static VSizeColumnarMultiInts	readFromByteBuffer(ByteBuffer buffer)
int	size()	Number of elements in the value set
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.Indexed

isSorted

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Method Details

fromIterable

public static VSizeColumnarMultiInts fromIterable(Iterable<VSizeColumnarInts> objectsIterable)

size

public int size()

Description copied from interface: Indexed

Number of elements in the value set

Specified by:

size in interface Indexed<IndexedInts>

get

public VSizeColumnarInts get(int index)

Description copied from interface: ColumnarMultiInts

Returns the values at a given row index. The IndexedInts object may potentially be reused, so callers should not keep references to it.

Specified by:

get in interface ColumnarMultiInts

Specified by:

get in interface Indexed<IndexedInts>

getUnshared

public IndexedInts getUnshared(int index)

Description copied from interface: ColumnarMultiInts

Returns the values at a given row index. The IndexedInts object will not be reused. This method may be less efficient than plain "get".

Specified by:

getUnshared in interface ColumnarMultiInts

indexOf

public int indexOf(IndexedInts value)

Description copied from interface: Indexed

Returns the index of "value" in this Indexed object, or a negative number if the value is not present. The negative number is not guaranteed to be any particular number unless Indexed.isSorted() returns true, in which case it will be a negative number equal to (-(insertion point) - 1), in the manner of Arrays.binarySearch.

Specified by:

indexOf in interface Indexed<IndexedInts>

Parameters:

value - value to search for

Returns:

index of value, or a negative number (equal to (-(insertion point) - 1) if Indexed.isSorted())

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 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

get

public ColumnarMultiInts get()

Specified by:

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

Specified by:

get in interface Supplier<ColumnarMultiInts>

readFromByteBuffer

public static VSizeColumnarMultiInts readFromByteBuffer(ByteBuffer buffer)

iterator

public Iterator<IndexedInts> iterator()

Specified by:

iterator in interface Iterable<IndexedInts>

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

inspectRuntimeShape

public void inspectRuntimeShape(RuntimeShapeInspector inspector)

Description copied from interface: HotLoopCallee

Implementations of this method should call inspector.visit() with all fields of this class, which meet two conditions: 1. They are used in methods of this class, annotated with CalledFromHotLoop 2. They are either: a. Nullable objects b. Instances of HotLoopCallee c. Objects, which don't always have a specific class in runtime. For example, a field of type Set could be HashSet or TreeSet in runtime, depending on how this instance (the instance on which inspectRuntimeShape() is called) is configured. d. ByteBuffer or similar objects, where byte order matters e. boolean flags, affecting branch taking f. Arrays of objects, meeting any of conditions a-e.

Specified by:

inspectRuntimeShape in interface HotLoopCallee