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Java Source Code / Java Documentation » Scripting » janino 2.5.11 » org.codehaus.janino

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

org.codehaus.janino .Cookable

org.codehaus.janino .SimpleCompiler

All known Subclasses:   org.codehaus.janino .ClassBodyEvaluator,
SimpleCompiler
public class SimpleCompiler extends Cookable (Code)
A simplified version of Compiler that can compile only a single compilation unit. (A "compilation unit" is the characters stored in a ".java" file.)
Opposed to a normal ".java" file, you can declare multiple public classes here.
To set up a SimpleCompiler object, proceed as follows:

Create the SimpleCompiler using SimpleCompiler.SimpleCompiler()
Optionally set an alternate parent class loader through SimpleCompiler.setParentClassLoader(ClassLoader) .
Call any of the org.codehaus.janino.Cookable.cook(Scanner) methods to scan, parse, compile and load the compilation unit into the JVM.
Alternatively, a number of "convenience constructors" exist that execute the steps described above instantly.

Field Summary
final public static ClassLoader BOOT_CLASS_LOADER
     A ClassLoader that finds the classes on the JVM's boot class path (e.g.

Constructor Summary
public SimpleCompiler(String optionalFileName, Reader in)

public SimpleCompiler(String optionalFileName, InputStream is)

public SimpleCompiler(String fileName)

public SimpleCompiler(Scanner scanner, ClassLoader optionalParentClassLoader)

public SimpleCompiler()


Method Summary
protected Java.Type classToType(Location location, Class optionalClass)
     Wrap a reflection Class in a Java.Type object.
protected Java.Type[] classesToTypes(Location location, Class[] classes)
     Convert an array of Class es into an array of Java.Type s.
final protected ClassLoader compileToClassLoader(Java.CompilationUnit compilationUnit, EnumeratorSet debuggingInformation)
     Compile the given compilation unit.
public void cook(Scanner scanner)

public boolean equals(Object o)
     Two SimpleCompiler s are regarded equal iff

Both are objects of the same class (e.g.
public ClassLoader getClassLoader()
     Returns a ClassLoader object through which the previously compiled classes can be accessed.
public int hashCode()

public static void main(String[] args)

public void setParentClassLoader(ClassLoader optionalParentClassLoader)
     The "parent class loader" is used to load referenced classes.
public void setParentClassLoader(ClassLoader optionalParentClassLoader, Class[] auxiliaryClasses)
     Allowe references to the classes loaded through this parent class loader (@see SimpleCompiler.setParentClassLoader(ClassLoader) ), plus the extra auxiliaryClasses.
final protected void setUpClassLoaders()
     Initializes SimpleCompiler.classLoader and SimpleCompiler.iClassLoader from the configured SimpleCompiler.parentClassLoader and SimpleCompiler.optionalAuxiliaryClasses .

Field Detail
BOOT_CLASS_LOADER
final public static ClassLoader BOOT_CLASS_LOADER(Code)
A ClassLoader that finds the classes on the JVM's boot class path (e.g. java.io.*), but not the classes on the JVM's class path.

Constructor Detail
SimpleCompiler
public SimpleCompiler(String optionalFileName, Reader in) throws IOException, Scanner.ScanException, Parser.ParseException, CompileException(Code)
Equivalent to
SimpleCompiler sc = new SimpleCompiler(); sc.cook(optionalFileName, in);

See Also:   SimpleCompiler.SimpleCompiler()
See Also:   Cookable.cook(StringReader)

SimpleCompiler
public SimpleCompiler(String optionalFileName, InputStream is) throws IOException, Scanner.ScanException, Parser.ParseException, CompileException(Code)
Equivalent to
SimpleCompiler sc = new SimpleCompiler(); sc.cook(optionalFileName, is);

See Also:   SimpleCompiler.SimpleCompiler()
See Also:   Cookable.cook(StringInputStream)

SimpleCompiler
public SimpleCompiler(String fileName) throws IOException, Scanner.ScanException, Parser.ParseException, CompileException(Code)
Equivalent to
SimpleCompiler sc = new SimpleCompiler(); sc.cook(fileName);

See Also:   SimpleCompiler.SimpleCompiler()
See Also:   Cookable.cookFile(String)

SimpleCompiler
public SimpleCompiler(Scanner scanner, ClassLoader optionalParentClassLoader) throws IOException, Scanner.ScanException, Parser.ParseException, CompileException(Code)
Equivalent to
SimpleCompiler sc = new SimpleCompiler(); sc.setParentClassLoader(optionalParentClassLoader); sc.cook(scanner);

See Also:   SimpleCompiler.SimpleCompiler()
See Also:   SimpleCompiler.setParentClassLoader(ClassLoader)
See Also:   Cookable.cook(Scanner)

SimpleCompiler
public SimpleCompiler()(Code)

Method Detail
classToType
protected Java.Type classToType(Location location, Class optionalClass)(Code)
Wrap a reflection Class in a Java.Type object.

classesToTypes
protected Java.Type[] classesToTypes(Location location, Class[] classes)(Code)
Convert an array of Class es into an array of Java.Type s.

compileToClassLoader
final protected ClassLoader compileToClassLoader(Java.CompilationUnit compilationUnit, EnumeratorSet debuggingInformation) throws CompileException(Code)
Compile the given compilation unit. (A "compilation unit" is typically the contents of a Java^TM source file.)
Parameters:
  compilationUnit - The parsed compilation unit
Parameters:
  debuggingInformation - What kind of debugging information to generate in the class file The ClassLoader into which the compiled classes were defined
throws:
  CompileException -

cook
public void cook(Scanner scanner) throws CompileException, Parser.ParseException, Scanner.ScanException, IOException(Code)

equals
public boolean equals(Object o)(Code)
Two SimpleCompiler s are regarded equal iff

Both are objects of the same class (e.g. both are ScriptEvaluator s)
Both generated functionally equal classes as seen by ByteArrayClassLoader.equals(Object)

getClassLoader
public ClassLoader getClassLoader()(Code)
Returns a ClassLoader object through which the previously compiled classes can be accessed. This ClassLoader can be used for subsequent calls to SimpleCompiler.SimpleCompiler(Scanner,ClassLoader) in order to compile compilation units that use types (e.g. declare derived types) declared in the previous one.
This method must only be called after SimpleCompiler.cook(Scanner) .
This method must not be called for instances of derived classes.

hashCode
public int hashCode()(Code)

main
public static void main(String[] args) throws Exception(Code)

setParentClassLoader
public void setParentClassLoader(ClassLoader optionalParentClassLoader)(Code)
The "parent class loader" is used to load referenced classes. Useful values are:
System.getSystemClassLoader() The running JVM's class path
Thread.currentThread().getContextClassLoader() or null The class loader effective for the invoking thread
SimpleCompiler.BOOT_CLASS_LOADER The running JVM's boot class path
The parent class loader defaults to the current thread's context class loader.

setParentClassLoader
public void setParentClassLoader(ClassLoader optionalParentClassLoader, Class[] auxiliaryClasses)(Code)
Allowe references to the classes loaded through this parent class loader (@see SimpleCompiler.setParentClassLoader(ClassLoader) ), plus the extra auxiliaryClasses.
Notice that the auxiliaryClasses must either be loadable through the optionalParentClassLoader (in which case they have no effect), or no class with the same name must be loadable through the optionalParentClassLoader.

setUpClassLoaders
final protected void setUpClassLoaders()(Code)
Initializes SimpleCompiler.classLoader and SimpleCompiler.iClassLoader from the configured SimpleCompiler.parentClassLoader and SimpleCompiler.optionalAuxiliaryClasses . These are needed by SimpleCompiler.classToType(Location,Class) and friends which are used when creating the AST.

Methods inherited from org.codehaus.janino.Cookable
abstract public void cook(Scanner scanner) throws CompileException, Parser.ParseException, Scanner.ScanException, IOException(Code)(Java Doc)
final public void cook(Reader r) throws CompileException, Parser.ParseException, Scanner.ScanException, IOException(Code)(Java Doc)
final public void cook(String optionalFileName, Reader r) throws CompileException, Parser.ParseException, Scanner.ScanException, IOException(Code)(Java Doc)
final public void cook(InputStream is) throws CompileException, Parser.ParseException, Scanner.ScanException, IOException(Code)(Java Doc)
final public void cook(String optionalFileName, InputStream is) throws CompileException, Parser.ParseException, Scanner.ScanException, IOException(Code)(Java Doc)
final public void cook(InputStream is, String optionalEncoding) throws CompileException, Parser.ParseException, Scanner.ScanException, IOException(Code)(Java Doc)
final public void cook(String optionalFileName, InputStream is, String optionalEncoding) throws CompileException, Parser.ParseException, Scanner.ScanException, IOException(Code)(Java Doc)
final public void cook(String s) throws CompileException, Parser.ParseException, Scanner.ScanException(Code)(Java Doc)
final public void cookFile(File file) throws CompileException, Parser.ParseException, Scanner.ScanException, IOException(Code)(Java Doc)
final public void cookFile(File file, String optionalEncoding) throws CompileException, Parser.ParseException, Scanner.ScanException, IOException(Code)(Java Doc)
final public void cookFile(String fileName) throws CompileException, Parser.ParseException, Scanner.ScanException, IOException(Code)(Java Doc)
final public void cookFile(String fileName, String optionalEncoding) throws CompileException, Parser.ParseException, Scanner.ScanException, IOException(Code)(Java Doc)

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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