Module org.apache.arrow.format

Package org.apache.arrow.flatbuf

Class Feature

java.lang.Object

org.apache.arrow.flatbuf.Feature

public final class Feature
extends Object

Represents Arrow Features that might not have full support within implementations. This is intended to be used in two scenarios: 1. A mechanism for readers of Arrow Streams and files to understand that the stream or file makes use of a feature that isn't supported or unknown to the implementation (and therefore can meet the Arrow forward compatibility guarantees). 2. A means of negotiating between a client and server what features a stream is allowed to use. The enums values here are intented to represent higher level features, additional details maybe negotiated with key-value pairs specific to the protocol. Enums added to this list should be assigned power-of-two values to facilitate exchanging and comparing bitmaps for supported features.

Field Summary

Fields

Modifier and Type	Field	Description
static final long	COMPRESSED_BODY	The stream makes use of compressed bodies as described in Message.fbs.
static final long	DICTIONARY_REPLACEMENT	The stream makes use of multiple full dictionaries with the same ID and assumes clients implement dictionary replacement correctly.
static final long	UNUSED	Needed to make flatbuffers happy.

Method Summary

Methods inherited from class java.lang.Object

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

Field Details

UNUSED

public static final long UNUSED

Needed to make flatbuffers happy.

See Also:

• Constant Field Values

DICTIONARY_REPLACEMENT

public static final long DICTIONARY_REPLACEMENT

The stream makes use of multiple full dictionaries with the same ID and assumes clients implement dictionary replacement correctly.

See Also:

• Constant Field Values

COMPRESSED_BODY

public static final long COMPRESSED_BODY

The stream makes use of compressed bodies as described in Message.fbs.

See Also:

• Constant Field Values