Module org.apache.arrow.format

Package org.apache.arrow.flatbuf

Class MetadataVersion

java.lang.Object

org.apache.arrow.flatbuf.MetadataVersion

public final class MetadataVersion
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static final String[]	names
static final short	V1	0.1.0 (October 2016).
static final short	V2	0.2.0 (February 2017).
static final short	V3	0.3.0 -> 0.7.1 (May - December 2017).
static final short	V4	>= 0.8.0 (December 2017).
static final short	V5	>= 1.0.0 (July 2020).

Method Summary

Modifier and Type	Method	Description
static String	name(int e)

Methods inherited from class java.lang.Object

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

Field Details

V1

public static final short V1

0.1.0 (October 2016).

See Also:

• Constant Field Values

V2

public static final short V2

0.2.0 (February 2017). Non-backwards compatible with V1.

See Also:

• Constant Field Values

V3

public static final short V3

0.3.0 -> 0.7.1 (May - December 2017). Non-backwards compatible with V2.

See Also:

• Constant Field Values

V4

public static final short V4

>= 0.8.0 (December 2017). Non-backwards compatible with V3.

See Also:

• Constant Field Values

V5

public static final short V5

>= 1.0.0 (July 2020). Backwards compatible with V4 (V5 readers can read V4 metadata and IPC messages). Implementations are recommended to provide a V4 compatibility mode with V5 format changes disabled. Incompatible changes between V4 and V5: - Union buffer layout has changed. In V5, Unions don't have a validity bitmap buffer.

See Also:

• Constant Field Values

names

public static final String[] names

Method Details

name

public static String name(int e)