Package org.apache.lucene.util

Class Constants

java.lang.Object

org.apache.lucene.util.Constants

public final class Constants
extends Object

Some useful constants.

Field Summary

Fields

Modifier and Type	Field	Description
static final boolean	FREE_BSD	True iff running on FreeBSD
static final String	JAVA_VENDOR
static final String	JAVA_VERSION	The value of System.getProperty("java.version").
static final boolean	JRE_IS_64BIT	True iff running on a 64bit JVM
static final boolean	JRE_IS_MINIMUM_JAVA11
static final boolean	JRE_IS_MINIMUM_JAVA8
static final boolean	JRE_IS_MINIMUM_JAVA9
private static final int	JVM_MAJOR_VERSION
private static final int	JVM_MINOR_VERSION
static final String	JVM_NAME
static final String	JVM_SPEC_VERSION
static final String	JVM_VENDOR	JVM vendor info.
static final String	JVM_VERSION
static final boolean	LINUX	True iff running on Linux.
static final boolean	MAC_OS_X	True iff running on Mac OS X
static final String	OS_ARCH
static final String	OS_NAME	The value of System.getProperty("os.name").
static final String	OS_VERSION
static final boolean	SUN_OS	True iff running on SunOS.
static final boolean	WINDOWS	True iff running on Windows.

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Constants()

Method Summary

Methods inherited from class java.lang.Object

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

Field Details

JVM_VENDOR

public static final String JVM_VENDOR

JVM vendor info.

JVM_VERSION

public static final String JVM_VERSION

JVM_NAME

public static final String JVM_NAME

JVM_SPEC_VERSION

public static final String JVM_SPEC_VERSION

JAVA_VERSION

public static final String JAVA_VERSION

The value of System.getProperty("java.version"). *

OS_NAME

public static final String OS_NAME

The value of System.getProperty("os.name"). *

LINUX

public static final boolean LINUX

True iff running on Linux.

WINDOWS

public static final boolean WINDOWS

True iff running on Windows.

SUN_OS

public static final boolean SUN_OS

True iff running on SunOS.

MAC_OS_X

public static final boolean MAC_OS_X

True iff running on Mac OS X

FREE_BSD

public static final boolean FREE_BSD

True iff running on FreeBSD

OS_ARCH

public static final String OS_ARCH

OS_VERSION

public static final String OS_VERSION

JAVA_VENDOR

public static final String JAVA_VENDOR

JVM_MAJOR_VERSION

private static final int JVM_MAJOR_VERSION

JVM_MINOR_VERSION

private static final int JVM_MINOR_VERSION

JRE_IS_64BIT

public static final boolean JRE_IS_64BIT

True iff running on a 64bit JVM

JRE_IS_MINIMUM_JAVA8

public static final boolean JRE_IS_MINIMUM_JAVA8

JRE_IS_MINIMUM_JAVA9

public static final boolean JRE_IS_MINIMUM_JAVA9

JRE_IS_MINIMUM_JAVA11

public static final boolean JRE_IS_MINIMUM_JAVA11

Constructor Details

Constants

private Constants()