Package org.codehaus.commons.compiler.jdk

Class SimpleCompiler

java.lang.Object

org.codehaus.commons.compiler.Cookable

org.codehaus.commons.compiler.jdk.SimpleCompiler

All Implemented Interfaces:

ICookable, ISimpleCompiler

public class SimpleCompiler
extends Cookable
implements ISimpleCompiler

The JDK-based implementation of ISimpleCompiler.

Constructor Summary

Constructors

Constructor	Description
SimpleCompiler()

Method Summary

Modifier and Type	Method	Description
protected void	addOffset(String fileName)	Derived classes call this method to "reset" the current line and column number at the currently read input character, and also changes the "file name" (see cook(String, Reader)).
void	cook(String fileName, Reader r)	Reads, scans, parses and compiles Java tokens from the given Reader.
Map<String,byte[]>	getBytecodes()
ClassLoader	getClassLoader()	Returns a ClassLoader object through which the previously compiled classes can be accessed.
void	setCompileErrorHandler(ErrorHandler compileErrorHandler)	By default, CompileExceptions are thrown on compile errors, but an application my install its own ErrorHandler.
void	setDebuggingInformation(boolean debugSource, boolean debugLines, boolean debugVars)	Determines what kind of debugging information is included in the generates classes.
void	setParentClassLoader(ClassLoader parentClassLoader)	The "parent class loader" is used to load referenced classes.
void	setParentClassLoader(ClassLoader parentClassLoader, Class<?>[] auxiliaryClasses)	Deprecated. Auxiliary classes never really worked...
void	setSourceVersion(int version)	Specifies the version of source code accepted, in analogy with JAVAC's -source command line option.
void	setTargetVersion(int version)	Generates class files that target a specified release of the virtual machine, in analogy with JAVAC's -target command line option.
void	setWarningHandler(WarningHandler warningHandler)	By default, warnings are discarded, but an application my install a custom WarningHandler.

Methods inherited from class org.codehaus.commons.compiler.Cookable

cook, cook, cook, cook, cook, cook, cook, cookFile, cookFile, cookFile, cookFile

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.codehaus.commons.compiler.ICookable

cook, cook, cook, cook, cook, cook, cook, cookFile, cookFile, cookFile, cookFile

Constructor Detail

SimpleCompiler

public SimpleCompiler()

Method Detail

setSourceVersion

public void setSourceVersion(int version)

Description copied from interface: ICookable

Specifies the version of source code accepted, in analogy with JAVAC's -source command line option. May be ignored by an implementation (e.g. the janino implementation always accepts the language features as described on the home page). Allowed values, and the default value, depend on the implementation. -1 means to use a default version.

Specified by:

setSourceVersion in interface ICookable

setTargetVersion

public void setTargetVersion(int version)

Description copied from interface: ICookable

Generates class files that target a specified release of the virtual machine, in analogy with JAVAC's -target command line option. Allowed values depend on the implementation. The default value also depends on the implementation. The only invariant is that the generated class files are suitable for the currently executing JVM. -1 means to use a default version.

Specified by:

setTargetVersion in interface ICookable

getBytecodes

public Map<String,byte[]> getBytecodes()

Specified by:

getBytecodes in interface ICookable

Returns:

The generated Java bytecode; maps class name to bytes

getClassLoader

public ClassLoader getClassLoader()

Description copied from interface: ISimpleCompiler

Returns a ClassLoader object through which the previously compiled classes can be accessed. This ClassLoader can be used for subsequent ISimpleCompilers 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 exactly one of the ICookable.cook(String, java.io.Reader) methods was called.

Specified by:

getClassLoader in interface ISimpleCompiler

cook

public void cook(@Nullable
                 String fileName,
                 Reader r)
          throws CompileException,
                 IOException

Description copied from interface: ICookable

Reads, scans, parses and compiles Java tokens from the given Reader.

Specified by:

cook in interface ICookable

Specified by:

cook in class Cookable

Parameters:

fileName - Used when reporting errors and warnings

Throws:

CompileException

IOException

setDebuggingInformation

public void setDebuggingInformation(boolean debugSource,
                                    boolean debugLines,
                                    boolean debugVars)

Description copied from interface: ISimpleCompiler

Determines what kind of debugging information is included in the generates classes. The default is typically "-g:none".

Specified by:

setDebuggingInformation in interface ISimpleCompiler

setParentClassLoader

public void setParentClassLoader(@Nullable
                                 ClassLoader parentClassLoader)

Description copied from interface: ISimpleCompiler

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
ClassLoaders.BOOTCLASSPATH_CLASS_LOADER	The running JVM's boot class path

The parent class loader defaults to the current thread's context class loader.

Specified by:

setParentClassLoader in interface ISimpleCompiler

setParentClassLoader

@Deprecated
public void setParentClassLoader(@Nullable
                                 ClassLoader parentClassLoader,
                                 Class<?>[] auxiliaryClasses)

Deprecated.

Auxiliary classes never really worked... don't use them.

setCompileErrorHandler

public void setCompileErrorHandler(@Nullable
                                   ErrorHandler compileErrorHandler)

Description copied from interface: ISimpleCompiler

By default, CompileExceptions are thrown on compile errors, but an application my install its own ErrorHandler.

Be aware that a single problem during compilation often causes a bunch of compile errors, so a good ErrorHandler counts errors and throws a CompileException when a limit is reached.

If the given ErrorHandler throws CompileExceptions, then the compilation is terminated and the exception is propagated.

If the given ErrorHandler does not throw CompileExceptions, then the compiler may or may not continue compilation, but must eventually throw a CompileException.

In other words: The ErrorHandler may throw a CompileException or not, but the compiler must definitely throw a CompileException if one or more compile errors have occurred.

Specified by:

setCompileErrorHandler in interface ISimpleCompiler

Parameters:

compileErrorHandler - null to restore the default behavior (throwing a CompileException

setWarningHandler

public void setWarningHandler(@Nullable
                              WarningHandler warningHandler)

Description copied from interface: ISimpleCompiler

By default, warnings are discarded, but an application my install a custom WarningHandler.

Specified by:

setWarningHandler in interface ISimpleCompiler

Parameters:

warningHandler - null to indicate that no warnings be issued

addOffset

protected void addOffset(@Nullable
                         String fileName)

Derived classes call this method to "reset" the current line and column number at the currently read input character, and also changes the "file name" (see cook(String, Reader)).