org.objectweb.jonathan.libs.kernel.decoders
Class DecoderHelper

java.lang.Object
  org.objectweb.jonathan.libs.kernel.decoders.DecoderHelper

public class DecoderHelper

extends java.lang.Object

Helper class providing methods used by JImpicitFactory, KAtom and KAssemblage.

Constructor Summary

DecoderHelper()

Method Summary

static java.lang.Object	apply(java.lang.reflect.Constructor _constructor, java.util.List _arguments, Context _context, Instanciable _instance) "applies" the _context Context's elements on the implementation alternative whose signature is _constructor(_arguments), i.e.
static java.lang.Object	apply(java.lang.Object _object, java.lang.reflect.Method _method, java.util.List _arguments, Context _context, Instanciable _instance) "applies" the _context Context's elements on the specified method whose signature is _method(_arguments), i.e.
static java.lang.String	getClassNameForArray(java.lang.String _array) Return the class name corresponding to the _array given.
static java.lang.reflect.Constructor	getConstructor(java.lang.String _classe, java.util.List _arguments, Component _context) Returns the _classe java class's Constructor whose arguments'types are listed in _arguments as JArguments.
static java.lang.reflect.Method	getMethod(java.lang.Class _class, java.lang.String _name, java.util.List _arguments, Component _context) Returns the _classe java class's Method whose name is _name and arguments'types are listed in _arguments as JArguments.
static boolean	isArrayClassName(java.lang.String _type) Test if the _type given is an array class name.

Methods inherited from class java.lang.Object

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

Constructor Detail

DecoderHelper

public DecoderHelper()

Method Detail

getMethod

public static java.lang.reflect.Method getMethod(java.lang.Class _class,
                                                 java.lang.String _name,
                                                 java.util.List _arguments,
                                                 Component _context)
                                          throws JonathanException

Returns the _classe java class's Method whose name is _name and arguments'types are listed in _arguments as JArguments. To reach this goal, this method first tries to find and load each of _arguments' java classes with the ClasspathFinder found at "/classpath_finder" (in the _context context).

Parameters:

_class - the belonging class of the method

_name - the name of the method

_arguments - the parameters of the method

_context - the context in which find the ClasspathFinder

Returns:

its Class method

Throws:

JonathanException - if something goes wrong.

getConstructor

public static java.lang.reflect.Constructor getConstructor(java.lang.String _classe,
                                                           java.util.List _arguments,
                                                           Component _context)
                                                    throws JonathanException

Returns the _classe java class's Constructor whose arguments'types are listed in _arguments as JArguments. To reach this goal, this method first tries to find and load _classe and each of arguments' java classes with the ClasspathFinder found at "/classpath_finder" (in the _context context).

Parameters:

_classe - the class's...

_arguments - ...signature

Returns:

its Class constructor

Throws:

JonathanException - if something goes wrong.

apply

public static java.lang.Object apply(java.lang.Object _object,
                                     java.lang.reflect.Method _method,
                                     java.util.List _arguments,
                                     Context _context,
                                     Instanciable _instance)
                              throws JonathanException

"applies" the _context Context's elements on the specified method whose signature is _method(_arguments), i.e.

• find and instantiates _arguments' JArguments
• calls _method with them as its parameters on the object _object

Parameters:

_object - the object calling method

_method - method to call

_arguments - its arguments

_context - contains the instanciation parameters

Throws:

JonathanException - if something goes wrong.

apply

public static java.lang.Object apply(java.lang.reflect.Constructor _constructor,
                                     java.util.List _arguments,
                                     Context _context,
                                     Instanciable _instance)
                              throws JonathanException

"applies" the _context Context's elements on the implementation alternative whose signature is _constructor(_arguments), i.e.

• find and instantiates _arguments' JArguments
• instantiates _constructor with them as its parameters

Parameters:

_constructor - constructor to call

_arguments - its arguments

_context - contains the instanciation parameterd

Returns:

the created instance

Throws:

JonathanException - if something goes wrong.

isArrayClassName

public static boolean isArrayClassName(java.lang.String _type)

Test if the _type given is an array class name.

Parameters:

_type - the type to be tested

Returns:

true if it is an array class name, false otherwise.

getClassNameForArray

public static java.lang.String getClassNameForArray(java.lang.String _array)

Return the class name corresponding to the _array given.

Parameters:

_array - the array to be studied

Returns:

this array class name.