org.mdi.util

Class ClassDependencyHelper

java.lang.Object

org.mdi.util.ClassDependencyHelper

public class ClassDependencyHelper
extends java.lang.Object

Contain various utility methods to check for dependencies between classes.

Method Summary

Modifier and Type	Method and Description
void	getAllInterfaces(java.util.ArrayList<java.lang.Class> list, java.lang.Class clazz) Return all the interfaces implemented by a Class, at any level of the inheritance hierarchy.
static ClassDependencyHelper	getInstance() Return the unique instance.
static ClassDependencyHelper	getInstance(java.lang.ClassLoader loader) Return the unique instance of this helper, with a selected ClassLoader.
boolean	isSuperClass(java.lang.Class clazz, java.lang.Class supClazz) Return true if a Class is a superclass of another Class.
boolean	isSuperClass(java.lang.Class clazz, java.lang.String supClazzName) Return true if supClazzName is a superclass of clazz, or is equal to clazz.

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static ClassDependencyHelper getInstance()

Return the unique instance.

Returns:

the unique instance

getInstance

public static ClassDependencyHelper getInstance(java.lang.ClassLoader loader)

Return the unique instance of this helper, with a selected ClassLoader.

Parameters:

loader - the ClassLoader

Returns:

the unique instance of this helper

getAllInterfaces

public void getAllInterfaces(java.util.ArrayList<java.lang.Class> list,
                             java.lang.Class clazz)

Return all the interfaces implemented by a Class, at any level of the inheritance hierarchy.

Parameters:

list - the list which will need to contain the interfaces implemented by the Class

clazz - the Class

isSuperClass

public boolean isSuperClass(java.lang.Class clazz,
                            java.lang.Class supClazz)

Return true if a Class is a superclass of another Class.

supClazz is a superclass of clazz if one of these conditions is true :

• supClazz is equal to clazz
• supClazz is a direct superclass of clazz
• supClazz is a superclass of one of clazz superclasses, at any level in the inheritance hierarchy
• supClazz is an interface and clazz implements supClazz
• supClazz is an interface and clazz implements supClazz at any level in the inheritance hierarchy

Parameters:

clazz - the Class

supClazz - the Class on interface that we will check

Returns:

true if supClazz is a superclass of clazz

isSuperClass

public boolean isSuperClass(java.lang.Class clazz,
                            java.lang.String supClazzName)

Return true if supClazzName is a superclass of clazz, or is equal to clazz.

Parameters:

clazz - the Class

supClazzName - the name of the Class for which we want to check if it is a superclass of clazz

Returns:

true if supClazzName is a superclass of clazz, or is equal to clazz

See Also:

isSuperClass(Class, Class)