koala.dynamicjava.classinfo
Class ClassInfoUtilities

java.lang.Object
  |
  +--koala.dynamicjava.classinfo.ClassInfoUtilities

public class ClassInfoUtilities

extends java.lang.Object

This class contains a collection of utility methods for reflection.

Method Summary

static FieldInfo	getField(ClassInfo cl, java.lang.String name) Returns a field with the given name declared in the given class or in the superclasses of the given class
static java.util.List	getMethods(ClassInfo cl, java.lang.String name, int params) Gets all the methods with the given name in the given class or super classes.
static FieldInfo	getOuterField(ClassInfo cl, java.lang.String name) Returns a field with the given name declared in one of the outer classes of the given class
static boolean	isAssignableFrom(ClassInfo c1, ClassInfo c2) Tests whether c1 is assignable from c2.
static ConstructorInfo	lookupConstructor(ClassInfo cl, ClassInfo[] ac) Looks for a constructor in the given class or in super classes of this class.
static MethodInfo	lookupMethod(ClassInfo cl, java.lang.String name, ClassInfo[] ac) Looks for a method in the given class or in super classes of this class.
static MethodInfo	lookupOuterMethod(ClassInfo cl, java.lang.String name, ClassInfo[] ac) Looks up for a method in an outer classes of this class.

Methods inherited from class java.lang.Object

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

Method Detail

lookupConstructor

public static ConstructorInfo lookupConstructor(ClassInfo cl,
                                                ClassInfo[] ac)
                                         throws java.lang.NoSuchMethodException

Looks for a constructor in the given class or in super classes of this class.

Parameters:

cl - the class of which the constructor is a member

ac - the arguments classes (possibly not the exact declaring classes)

isAssignableFrom

public static boolean isAssignableFrom(ClassInfo c1,
                                       ClassInfo c2)

Tests whether c1 is assignable from c2. This function works on every types (primitive or not)

Parameters:

c1 - a class info

c2 - a class info

getField

public static FieldInfo getField(ClassInfo cl,
                                 java.lang.String name)
                          throws java.lang.NoSuchFieldException,
                                 AmbiguousFieldException

Returns a field with the given name declared in the given class or in the superclasses of the given class

Parameters:

cl - the class where the field must look for the field

name - the name of the field

getOuterField

public static FieldInfo getOuterField(ClassInfo cl,
                                      java.lang.String name)
                               throws java.lang.NoSuchFieldException,
                                      AmbiguousFieldException

Returns a field with the given name declared in one of the outer classes of the given class

Parameters:

cl - the inner class

name - the name of the field

lookupMethod

public static MethodInfo lookupMethod(ClassInfo cl,
                                      java.lang.String name,
                                      ClassInfo[] ac)
                               throws java.lang.NoSuchMethodException

Looks for a method in the given class or in super classes of this class.

Parameters:

cl - the class of which the method is a member

name - the name of the method

ac - the arguments classes (possibly not the exact declaring classes)

lookupOuterMethod

public static MethodInfo lookupOuterMethod(ClassInfo cl,
                                           java.lang.String name,
                                           ClassInfo[] ac)
                                    throws java.lang.NoSuchMethodException

Looks up for a method in an outer classes of this class.

Parameters:

cl - the inner class

name - the name of the method

ac - the arguments classes (possibly not the exact declaring classes)

getMethods

public static java.util.List getMethods(ClassInfo cl,
                                        java.lang.String name,
                                        int params)

Gets all the methods with the given name in the given class or super classes. Even the redefined methods are returned.

Parameters:

cl - the class where the method was declared

name - the name of the method

params - the number of parameters

Returns:

a list that contains the found methods, an empty list if no matching method was found.