org.apache.lucene.util

Class Version

java.lang.Object

org.apache.lucene.util.Version

public final class Version
extends Object

Use by certain classes to match version compatibility across releases of Lucene.

WARNING: When changing the version parameter that you supply to components in Lucene, do not simply change the version at search-time, but instead also adjust your indexing code to match, and re-index.

Field Summary

Fields

Modifier and Type	Field and Description
int	bugfix Bugfix number, incremented on release branches
static Version	LATEST WARNING: if you use this setting, and then upgrade to a newer release of Lucene, sizable changes may happen.
static Version	LUCENE_5_0_0 Deprecated. (5.0) Use latest
static Version	LUCENE_5_1_0 Deprecated. Use latest
static Version	LUCENE_5_2_0 Deprecated. Use latest
static Version	LUCENE_5_2_1 Deprecated. Use latest
static Version	LUCENE_5_3_0 Deprecated. Use latest
static Version	LUCENE_5_3_1 Deprecated. Use latest
static Version	LUCENE_5_3_2 Deprecated. Use latest
static Version	LUCENE_5_4_0 Deprecated. Use latest
static Version	LUCENE_5_4_1 Deprecated. Use latest
static Version	LUCENE_5_5_0 Deprecated. Use latest
static Version	LUCENE_5_5_1 Deprecated. Use latest
static Version	LUCENE_5_5_2 Deprecated. Use latest
static Version	LUCENE_5_5_3 Deprecated. Use latest
static Version	LUCENE_6_0_0 Deprecated. (6.1.0) Use latest
static Version	LUCENE_6_0_1 Deprecated. Use latest
static Version	LUCENE_6_1_0 Deprecated. (6.2.0) Use latest
static Version	LUCENE_6_2_0 Deprecated. (6.3.0) Use latest
static Version	LUCENE_6_2_1 Deprecated. Use latest
static Version	LUCENE_6_3_0 Deprecated. (6.4.0) Use latest
static Version	LUCENE_6_4_0 Match settings and bugs in Lucene's 6.4.0 release.
static Version	LUCENE_CURRENT Deprecated. Use LATEST
int	major Major version, the difference between stable and trunk
int	minor Minor version, incremented within the stable branch
int	prerelease Prerelease version, currently 0 (alpha), 1 (beta), or 2 (final)

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
static Version	fromBits(int major, int minor, int bugfix) Returns a new version based on raw numbers
int	hashCode()
boolean	onOrAfter(Version other) Returns true if this version is the same or after the version from the argument.
static Version	parse(String version) Parse a version number of the form "major.minor.bugfix.prerelease".
static Version	parseLeniently(String version) Parse the given version number as a constant or dot based version.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

LUCENE_5_0_0

@Deprecated
public static final Version LUCENE_5_0_0

Deprecated. (5.0) Use latest

Match settings and bugs in Lucene's 5.0 release.

LUCENE_5_1_0

@Deprecated
public static final Version LUCENE_5_1_0

Deprecated. Use latest

Match settings and bugs in Lucene's 5.1.0 release.

LUCENE_5_2_0

@Deprecated
public static final Version LUCENE_5_2_0

Deprecated. Use latest

Match settings and bugs in Lucene's 5.2.0 release.

LUCENE_5_2_1

@Deprecated
public static final Version LUCENE_5_2_1

Deprecated. Use latest

Match settings and bugs in Lucene's 5.2.1 release.

LUCENE_5_3_0

@Deprecated
public static final Version LUCENE_5_3_0

Deprecated. Use latest

Match settings and bugs in Lucene's 5.3.0 release.

LUCENE_5_3_1

@Deprecated
public static final Version LUCENE_5_3_1

Deprecated. Use latest

Match settings and bugs in Lucene's 5.3.1 release.

LUCENE_5_3_2

@Deprecated
public static final Version LUCENE_5_3_2

Deprecated. Use latest

Match settings and bugs in Lucene's 5.3.2 release.

LUCENE_5_4_0

@Deprecated
public static final Version LUCENE_5_4_0

Deprecated. Use latest

Match settings and bugs in Lucene's 5.4.0 release.

LUCENE_5_4_1

@Deprecated
public static final Version LUCENE_5_4_1

Deprecated. Use latest

Match settings and bugs in Lucene's 5.4.1 release.

LUCENE_5_5_0

@Deprecated
public static final Version LUCENE_5_5_0

Deprecated. Use latest

Match settings and bugs in Lucene's 5.5.0 release.

LUCENE_5_5_1

@Deprecated
public static final Version LUCENE_5_5_1

Deprecated. Use latest

Match settings and bugs in Lucene's 5.5.1 release.

LUCENE_5_5_2

@Deprecated
public static final Version LUCENE_5_5_2

Deprecated. Use latest

Match settings and bugs in Lucene's 5.5.2 release.

LUCENE_5_5_3

@Deprecated
public static final Version LUCENE_5_5_3

Deprecated. Use latest

Match settings and bugs in Lucene's 5.5.3 release.

LUCENE_6_0_0

@Deprecated
public static final Version LUCENE_6_0_0

Deprecated. (6.1.0) Use latest

Match settings and bugs in Lucene's 6.0 release.

LUCENE_6_0_1

@Deprecated
public static final Version LUCENE_6_0_1

Deprecated. Use latest

Match settings and bugs in Lucene's 6.0.1 release.

LUCENE_6_1_0

@Deprecated
public static final Version LUCENE_6_1_0

Deprecated. (6.2.0) Use latest

Match settings and bugs in Lucene's 6.1.0 release.

LUCENE_6_2_0

@Deprecated
public static final Version LUCENE_6_2_0

Deprecated. (6.3.0) Use latest

Match settings and bugs in Lucene's 6.2.0 release.

LUCENE_6_2_1

@Deprecated
public static final Version LUCENE_6_2_1

Deprecated. Use latest

Match settings and bugs in Lucene's 6.2.1 release.

LUCENE_6_3_0

@Deprecated
public static final Version LUCENE_6_3_0

Deprecated. (6.4.0) Use latest

Match settings and bugs in Lucene's 6.3.0 release.

LUCENE_6_4_0

public static final Version LUCENE_6_4_0

Match settings and bugs in Lucene's 6.4.0 release.

Use this to get the latest & greatest settings, bug fixes, etc, for Lucene.

LATEST

public static final Version LATEST

WARNING: if you use this setting, and then upgrade to a newer release of Lucene, sizable changes may happen. If backwards compatibility is important then you should instead explicitly specify an actual version.

If you use this constant then you may need to re-index all of your documents when upgrading Lucene, as the way text is indexed may have changed. Additionally, you may need to re-test your entire application to ensure it behaves as expected, as some defaults may have changed and may break functionality in your application.

LUCENE_CURRENT

@Deprecated
public static final Version LUCENE_CURRENT

Deprecated. Use LATEST

Constant for backwards compatibility.

major

public final int major

Major version, the difference between stable and trunk

minor

public final int minor

Minor version, incremented within the stable branch

bugfix

public final int bugfix

Bugfix number, incremented on release branches

prerelease

public final int prerelease

Prerelease version, currently 0 (alpha), 1 (beta), or 2 (final)

Method Detail

parse

public static Version parse(String version)
                     throws ParseException

Parse a version number of the form "major.minor.bugfix.prerelease". Part ".bugfix" and part ".prerelease" are optional. Note that this is forwards compatible: the parsed version does not have to exist as a constant.

Throws:

ParseException

NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.

parseLeniently

public static Version parseLeniently(String version)
                              throws ParseException

Parse the given version number as a constant or dot based version.

This method allows to use "LUCENE_X_Y" constant names, or version numbers in the format "x.y.z".

Throws:

ParseException

NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.

fromBits

public static Version fromBits(int major,
                               int minor,
                               int bugfix)

Returns a new version based on raw numbers

NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.

onOrAfter

public boolean onOrAfter(Version other)

Returns true if this version is the same or after the version from the argument.

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object