org.andromda.core.common

Class ClassUtils

java.lang.Object

org.apache.commons.lang.ClassUtils

org.andromda.core.common.ClassUtils

public class ClassUtils
extends org.apache.commons.lang.ClassUtils

Contains utilities for dealing with classes.

Author:

Chad Brandon, Bob Fields

Field Summary

Fields

Modifier and Type	Field and Description
static String	CLASS_EXTENSION The suffix for class files.

Fields inherited from class org.apache.commons.lang.ClassUtils

INNER_CLASS_SEPARATOR, INNER_CLASS_SEPARATOR_CHAR, PACKAGE_SEPARATOR, PACKAGE_SEPARATOR_CHAR

Constructor Summary

Constructors

Constructor and Description
ClassUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static Class	findClassOfType(URL[] directoryUris, Class type) Searches the contents of the directoryUri and returns the first Class found that is of the given type.
static List<Method>	getAllMethods(Class clazz) Loads all methods from the given clazz (this includes all super class methods, public, private and protected).
static ClassLoader	getClassLoader() Gets the appropriate class loader instance.
static List<Class>	getInterfaces(Class clazz) Retrieves all interfaces for the given clazz (including clazz itself, assuming it's an interface as well).
static List<Class>	getInterfaces(String className) Retrieves all interfaces for the given className (including className itself, assuming it's an interface as well).
static Class[]	getInterfacesReversed(String className) Gets the interfaces for the given className in reverse order.
protected static Class	getPrimitiveClass(String name, ClassLoader loader) Returns the type class name for a Java primitive.
static Collection<Object>	getStaticFieldValues(Class clazz, Class type) Returns a collection of all static fields values for the given clazz and type of field.
static boolean	isClassOfTypePresent(URL[] directoryUris, Class type) Indicates whether or not a class of the given type is present in one of the given directoryUris.
protected static boolean	isPrimitiveType(String name) Checks if a given type name is a Java primitive type.
static Class	loadClass(String className) Loads and returns the class having the className.
static Object	newInstance(Class type) Creates a new instance of the class given the type.
static Object	newInstance(String className) Creates a new instance of the class having the given className.

Methods inherited from class org.apache.commons.lang.ClassUtils

convertClassesToClassNames, convertClassNamesToClasses, getAllInterfaces, getAllSuperclasses, getClass, getClass, getClass, getClass, getPackageCanonicalName, getPackageCanonicalName, getPackageCanonicalName, getPackageName, getPackageName, getPackageName, getPublicMethod, getShortCanonicalName, getShortCanonicalName, getShortCanonicalName, getShortClassName, getShortClassName, getShortClassName, isAssignable, isAssignable, isAssignable, isAssignable, isInnerClass, primitivesToWrappers, primitiveToWrapper, toClass, wrappersToPrimitives, wrapperToPrimitive

Methods inherited from class java.lang.Object

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

Field Detail

CLASS_EXTENSION

public static final String CLASS_EXTENSION

The suffix for class files.

See Also:

Constant Field Values

Constructor Detail

ClassUtils

public ClassUtils()

Method Detail

newInstance

public static Object newInstance(String className)

Creates a new instance of the class having the given className.

Parameters:

className - the name of the class to instantiate.

Returns:

Object the new instance

newInstance

public static Object newInstance(Class type)

Creates a new instance of the class given the type.

Parameters:

type - the type from which to instantiate the new instance.

Returns:

Object the new instance

loadClass

public static Class loadClass(String className)

Loads and returns the class having the className. Will load but normal classes and the classes representing primitives.

Parameters:

className - the name of the class to load.

Returns:

Class the loaded class

getClassLoader

public static ClassLoader getClassLoader()

Gets the appropriate class loader instance.

Returns:

the class loader.

getPrimitiveClass

protected static Class getPrimitiveClass(String name,
                      ClassLoader loader)

Returns the type class name for a Java primitive.

Parameters:

name - a String with the name of the type

loader - the loader to use.

Returns:

a String with the name of the corresponding java.lang wrapper class if name is a Java primitive type; false if not

getStaticFieldValues

public static Collection<Object> getStaticFieldValues(Class clazz,
                                      Class type)
                                               throws IllegalAccessException

Returns a collection of all static fields values for the given clazz and type of field.

Parameters:

clazz - the Class from which to retrieve the static fields

type - the type of static fields to retrieve, if null all are retrieved

Returns:

Collection the collection of static field values.

Throws:

IllegalAccessException - - if some aspect of this static field prevents it from being added to this collection.

getInterfaces

public static List<Class> getInterfaces(String className)

Retrieves all interfaces for the given className (including className itself, assuming it's an interface as well).

Parameters:

className - the root interface className

Returns:

a list containing all interfaces ordered from the root down.

getInterfaces

public static List<Class> getInterfaces(Class clazz)

Retrieves all interfaces for the given clazz (including clazz itself, assuming it's an interface as well).

Parameters:

clazz - the root interface class

Returns:

a list containing all interfaces ordered from the root down.

getInterfacesReversed

public static Class[] getInterfacesReversed(String className)

Gets the interfaces for the given className in reverse order.

Parameters:

className - the name of the class for which to retrieve the interfaces

Returns:

the array containing the reversed interfaces.

isPrimitiveType

protected static boolean isPrimitiveType(String name)

Checks if a given type name is a Java primitive type.

Parameters:

name - a String with the name of the type

Returns:

true if name is a Java primitive type; false if not

findClassOfType

public static Class findClassOfType(URL[] directoryUris,
                    Class type)

Searches the contents of the directoryUri and returns the first Class found that is of the given type.

Parameters:

directoryUris - the URIs to search, ie. directories or archives.

type - the type to find.

Returns:

the class or null if not found.

getAllMethods

public static List<Method> getAllMethods(Class clazz)

Loads all methods from the given clazz (this includes all super class methods, public, private and protected).

Parameters:

clazz - the class to retrieve the methods.

Returns:

the loaded methods.

isClassOfTypePresent

public static boolean isClassOfTypePresent(URL[] directoryUris,
                           Class type)

Indicates whether or not a class of the given type is present in one of the given directoryUris.

Parameters:

directoryUris - the URIs to search, ie. directories or archives.

type - the type to check.

Returns:

true/false.