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Java Source Code / Java Documentation » 6.0 JDK Core » lang » java.lang

Source Cross Reference

Class Diagram

Java Document (Java Doc)

java.lang .Object

java.lang .Compiler

Compiler

final public class Compiler (Code)

The Compiler class is provided to support Java-to-native-code compilers and related services. By design, the Compiler class does nothing; it serves as a placeholder for a JIT compiler implementation.

When the Java Virtual Machine first starts, it determines if the system property java.compiler exists. (System properties are accessible through System.getProperty(String) and System.getProperty(StringString) . If so, it is assumed to be the name of a library (with a platform-dependent exact location and type); System.loadLibrary is called to load that library. If this loading succeeds, the function named java_lang_Compiler_start() in that library is called.

If no compiler is available, these methods do nothing.
author:
   Frank Yellin
version:
   1.29, 05/05/07
since:
   JDK1.0

Method Summary
native public static Object	command(Object any) Examines the argument type and its fields and perform some documented operation.
native public static boolean	compileClass(Class clazz) Compiles the specified class.
native public static boolean	compileClasses(String string) Compiles all classes whose name matches the specified string.
native public static void	disable() Cause the Compiler to cease operation.
native public static void	enable() Cause the Compiler to resume operation.

Method Detail

command
native public static Object command(Object any)(Code)
	Examines the argument type and its fields and perform some documented operation. No specific operations are required. Parameters: any - An argument A compiler-specific value, or null if no compiler isavailable throws: NullPointerException - If any is null

compileClass
native public static boolean compileClass(Class clazz)(Code)
	Compiles the specified class. Parameters: clazz - A class true if the compilation succeeded; false if thecompilation failed or no compiler is available throws: NullPointerException - If clazz is null

compileClasses
native public static boolean compileClasses(String string)(Code)
	Compiles all classes whose name matches the specified string. Parameters: string - The name of the classes to compile true if the compilation succeeded; false if thecompilation failed or no compiler is available throws: NullPointerException - If string is null

disable
native public static void disable()(Code)
	Cause the Compiler to cease operation.

enable
native public static void enable()(Code)
	Cause the Compiler to resume operation.

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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