Java (JBoss/Common API) - JBoss 3.2.7 common API Documentation 英文版文档

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org.jboss.util.platform
Class Java

java.lang.Object
  org.jboss.util.platform.Java

public final class Java
extends Object

Provides common access to specifics about the version of Java that a virtual machine supports.

Determines the version of the Java Virtual Machine by checking for the availablity of version specific classes.

Classes are loaded in the following order:

java.lang.StackTraceElement was introduced in JDK 1.4
java.lang.StrictMath was introduced in JDK 1.3
java.lang.ThreadLocal was introduced in JDK 1.2
java.lang.Void was introduced in JDK 1.1

Version:: $Revision: 1.3 $
Author:: Jason Dillon

Field Summary

static int VERSION_1_0
          Java version 1.0 token

static int VERSION_1_1
          Java version 1.1 token

static int VERSION_1_2
          Java version 1.2 token

static int VERSION_1_3
          Java version 1.3 token

static int VERSION_1_4
          Java version 1.4 token

Method Summary

static int getVersion()
          Return the version of Java supported by the VM.

static boolean isCompatible(int version)
          Retrurns true if the current virtual machine is compatible with the given version identifer.

static boolean isVersion(int version)
          Retrurns true if the given version identifer is equal to the version identifier of the current virtuial machine.

Methods inherited from class java.lang.Object

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

Field Detail

VERSION_1_0

public static final int VERSION_1_0

Java version 1.0 token

See Also:: Constant Field Values

VERSION_1_1

public static final int VERSION_1_1

Java version 1.1 token

See Also:: Constant Field Values

VERSION_1_2

public static final int VERSION_1_2

Java version 1.2 token

See Also:: Constant Field Values

VERSION_1_3

public static final int VERSION_1_3

Java version 1.3 token

See Also:: Constant Field Values

VERSION_1_4

public static final int VERSION_1_4

Java version 1.4 token

See Also:: Constant Field Values

Method Detail

getVersion

public static int getVersion()

Return the version of Java supported by the VM.

Returns:: The version of Java supported by the VM.

isVersion

public static boolean isVersion(int version)

Retrurns true if the given version identifer is equal to the version identifier of the current virtuial machine.

Parameters:: version - The version identifier to check for.
Returns:: True if the current virtual machine is the same version.

isCompatible

public static boolean isCompatible(int version)

Retrurns true if the current virtual machine is compatible with the given version identifer.

Parameters:: version - The version identifier to check compatibility of.
Returns:: True if the current virtual machine is compatible.