: Class Compiler

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java.lang
Class Compiler

java.lang.Object
  |
  +--java.lang.Compiler

public final class Compiler
extends Object

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 getProperty and , a method defined by the System class.) If so, it is assumed to be the name of a library (with a platform-dependent exact location and type); the loadLibrary method in class System 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.

Since:: JDK1.0
See Also:: System.getProperty(java.lang.String), System.getProperty(java.lang.String, java.lang.String), System.loadLibrary(java.lang.String)

Constructor Summary
`private`	`Compiler()`

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

Methods inherited from class java.lang.Object

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

Constructor Detail

Compiler

private Compiler()

Method Detail

initialize

private static void initialize()

registerNatives

private static void registerNatives()

static void ()

compileClass

public static boolean compileClass(Class clazz)

Compiles the specified class.

Parameters:: clazz - a class.
Returns:: true if the compilation succeeded; false if the compilation failed or no compiler is available.

compileClasses

public static boolean compileClasses(String string)

Compiles all classes whose name matches the specified string.

Parameters:: string - the name of the classes to compile.
Returns:: true if the compilation succeeded; false if the compilation failed or no compiler is available.

command

public static Object command(Object any)

Examines the argument type and its fields and perform some documented operation. No specific operations are required.

Parameters:: any - an argument.
Returns:: a compiler-specific value, or null if no compiler is available.

enable

public static void enable()

Cause the Compiler to resume operation.

disable

public static void disable()

Cause the Compiler to cease operation.