java.lang

Class Compiler

Contents

  • 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 System.getProperty(String) and System.getProperty(String, String). If so, it is assumed to be the name of a library (with a platform-dependent exact location and type); System.loadLibrary(java.lang.String) 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

    • Method Detail

      • 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
        Throws:
        NullPointerException - If clazz is null

      • 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
        Throws:
        NullPointerException - If string is null

      • 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
        Throws:
        NullPointerException - If any is null

      • enable

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

      • disable

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

Document created the 11/06/2005, last modified the 04/03/2020
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