com.day.util

Class JavaVersion

java.lang.Object

com.day.util.JavaVersion

public class JavaVersion
extends java.lang.Object

The JavaVersion class is a helper class to handle various Java version strings and query about the version of the Java VM the application is running.

The version information provided is based on the Java Runtime of the currently running Virtual Machine.

This is a utility class, which cannot be instantiated.

Since:

hawk

Method Summary

Modifier and Type	Method and Description
static java.lang.String	getSpecificationVersion() Returns the specification version of the current Java Runtime library.
static java.lang.String	getVersion() Returns the implementation version of the current Java Runtime library.
static boolean	is13() Returns true if the specification version of the current Java Runtime library is 1.3.
static boolean	is14() Returns true if the specification version of the current Java Runtime library is 1.4.
static boolean	is15() Returns true if the specification version of the current Java Runtime library is 1.5.
static boolean	isCompatibleWith(java.lang.String specVersion) Returns true if the specification version of the current Java Runtime library is compatible with the given specification version, that is if the specification version of the current Java Runtime library is the same or newer than the given version.
static boolean	isCompatibleWith13() Returns true if the specification version of the current Java Runtime library is compatible with 1.3, that is if the specification version of the current Java Runtime library is the same or newer than 1.3.
static boolean	isCompatibleWith14() Returns true if the specification version of the current Java Runtime library is compatible with 1.4, that is if the specification version of the current Java Runtime library is the same or newer than 1.4.
static boolean	isCompatibleWith15() Returns true if the specification version of the current Java Runtime library is compatible with 1.5, that is if the specification version of the current Java Runtime library is the same or newer than 1.5.
static boolean	isSpecificationVersion(java.lang.String specVersion) Returns true if the specification version of the current Java Runtime library the given version string.

Methods inherited from class java.lang.Object

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

Method Detail

getVersion

public static java.lang.String getVersion()

Returns the implementation version of the current Java Runtime library. E.g. "1.4.2_04"

getSpecificationVersion

public static java.lang.String getSpecificationVersion()

Returns the specification version of the current Java Runtime library. E.g. "1.4"

is13

public static boolean is13()

Returns true if the specification version of the current Java Runtime library is 1.3. This is a convenience method completely equivalent to isSpecificationVersion("1.3").

is14

public static boolean is14()

Returns true if the specification version of the current Java Runtime library is 1.4. This is a convenience method completely equivalent to isSpecificationVersion("1.4").

is15

public static boolean is15()

Returns true if the specification version of the current Java Runtime library is 1.5. This is a convenience method completely equivalent to isSpecificationVersion("1.5").

isSpecificationVersion

public static boolean isSpecificationVersion(java.lang.String specVersion)

Returns true if the specification version of the current Java Runtime library the given version string.

Parameters:

specVersion - The specification version to compare to the specification of the current Hava Runtime library.

isCompatibleWith13

public static boolean isCompatibleWith13()

Returns true if the specification version of the current Java Runtime library is compatible with 1.3, that is if the specification version of the current Java Runtime library is the same or newer than 1.3. This is a convenience method completely equivalent to isCompatibleWith("1.3").

isCompatibleWith14

public static boolean isCompatibleWith14()

Returns true if the specification version of the current Java Runtime library is compatible with 1.4, that is if the specification version of the current Java Runtime library is the same or newer than 1.4. This is a convenience method completely equivalent to isCompatibleWith("1.4").

isCompatibleWith15

public static boolean isCompatibleWith15()

Returns true if the specification version of the current Java Runtime library is compatible with 1.5, that is if the specification version of the current Java Runtime library is the same or newer than 1.5. This is a convenience method completely equivalent to isCompatibleWith("1.5").

isCompatibleWith

public static boolean isCompatibleWith(java.lang.String specVersion)

Returns true if the specification version of the current Java Runtime library is compatible with the given specification version, that is if the specification version of the current Java Runtime library is the same or newer than the given version.

Parameters:

specVersion - The specification version to compare to the specification of the current Hava Runtime library.