com.comtrade.ecm.engine.util

Class ClassUtils

java.lang.Object

com.comtrade.ecm.engine.util.ClassUtils

public class ClassUtils
extends java.lang.Object

Method Summary

Modifier and Type	Method and Description
static boolean	extendsClass(java.lang.Class<?> childClass, java.lang.Class<?> parentClass) Determines if the class or interface represented by parentClass object is either the same as, or is a superclass or superinterface of, the class or interface represented by the specified childClass parameter.
static boolean	extendsClass(java.lang.Object object, java.lang.Class<?> parentClass) Determines if the class or interface represented by parentClass object is either the same as, or is a superclass or superinterface of, the class of the object
static java.util.List<java.lang.Class<?>>	findClasses(java.io.File directory, java.lang.String packageName) Recursive method used to find all classes in a given directory and subdirs.
static <T> java.lang.reflect.Constructor<T>	findConstructor(java.lang.Class<T> constructorClass, java.lang.Class<?> parameterClass) Finds a constructor in a constructorClass that takes a parameter of parameterClass
static java.util.Collection<java.lang.Class<?>>	getAllInterfaces(java.lang.Class<?> clazz)
static java.util.List<java.lang.Class<?>>	getClasses(java.lang.String sourceFolderPath, java.lang.String packageName) Scans all classes accessible from the context class loader which belong to the given package and subpackages.
static boolean	implementsInterface(java.lang.Class<?> clazz, java.lang.Class<?> interfaceClass) Gives an information if a class implements a particular interface.
static boolean	implementsInterface(java.lang.Object object, java.lang.Class<?> interfaceClass) Gives an information if an object implements a particular interface.

Methods inherited from class java.lang.Object

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

Method Detail

getClasses

public static java.util.List<java.lang.Class<?>> getClasses(java.lang.String sourceFolderPath,
                                                            java.lang.String packageName)

Scans all classes accessible from the context class loader which belong to the given package and subpackages.

Parameters:

sourceFolderPath - Path of a source folder of a root-package

packageName - The base package

Returns:

The classes

findClasses

public static java.util.List<java.lang.Class<?>> findClasses(java.io.File directory,
                                                             java.lang.String packageName)

Recursive method used to find all classes in a given directory and subdirs.

Parameters:

directory - The base directory

packageName - The package name for classes found inside the base

Returns:

The classes

implementsInterface

public static boolean implementsInterface(java.lang.Class<?> clazz,
                                          java.lang.Class<?> interfaceClass)

Gives an information if a class implements a particular interface.

Parameters:

clazz - to be tested

interfaceClass - An interface class

Returns:

true, if it does
false, otherwise
false, if a clazz or an interfaceClass is null
false, if a clazz or an interfaceClass is null
false, if an interfaceClass is not an interface

implementsInterface

public static boolean implementsInterface(java.lang.Object object,
                                          java.lang.Class<?> interfaceClass)

Gives an information if an object implements a particular interface.

Parameters:

object - An object

interfaceClass - An interface class

Returns:

true, if it does
false, otherwise
false, if an object or an interface is null
false, if an object or an interface is null
false, if an interfaceClass is not an interface

extendsClass

public static boolean extendsClass(java.lang.Class<?> childClass,
                                   java.lang.Class<?> parentClass)

Determines if the class or interface represented by parentClass object is either the same as, or is a superclass or superinterface of, the class or interface represented by the specified childClass parameter.

Parameters:

childClass - A child class

parentClass - A (potentially) parent class

Returns:

true, if it does
false, otherwise
false, if a childClass or a parentClass is null
false, if a childClass or a parentClass is null

extendsClass

public static boolean extendsClass(java.lang.Object object,
                                   java.lang.Class<?> parentClass)

Determines if the class or interface represented by parentClass object is either the same as, or is a superclass or superinterface of, the class of the object

Parameters:

object - An object

parentClass - A (potentially) parent class

Returns:

true, if it does
false, otherwise
false, if an object or a (super)class is null
false, if an object or a (super)class is null

findConstructor

public static <T> java.lang.reflect.Constructor<T> findConstructor(java.lang.Class<T> constructorClass,
                                                                   java.lang.Class<?> parameterClass)

Finds a constructor in a constructorClass that takes a parameter of parameterClass

Type Parameters:

T - A type of an object that constructor creates

Parameters:

constructorClass - A class-object that defines a class of a constructor that we're looking for

parameterClass - A class of a constructor's parameter

Returns:

A found constructor

getAllInterfaces

public static java.util.Collection<java.lang.Class<?>> getAllInterfaces(java.lang.Class<?> clazz)