Package snap.util

Class ClassUtils

java.lang.Object

snap.util.ClassUtils

public class ClassUtils
extends Object

Utility methods for Class.

Constructor Summary

Constructors

Constructor	Description
ClassUtils()

Method Summary

Modifier and Type	Method	Description
static Object	cloneCloneable(Cloneable anObj)	Returns a clone of given Cloneable object using reflection.
static Class<?>	fromPrimitive(Class<?> aClass)	Returns non-primitive type for primitive.
static Class<?>	getClass(Object anObj)	Returns the class for an object.
static Class<?>	getCommonClass(Object anObj1, Object anObj2)	Returns the common ancestor class for two objects.
static Class<?>	getCommonClass(List<?> aList)	Returns the common ancestor class for a list of objects.
static <T> T	getInstance(Object anObj, Class<T> aClass)	Returns the given object as instance of given class, if it is.
static Method	getMethod(Class<?> aClass, String aName, Class<?>... theClasses)	Class.getMethod wrapper to isolate call to one place.
static Method	getMethodOrThrow(Class<?> aClass, String aName, Class<?>... theClasses)	Class.getMethod wrapper to isolate call to one place.
static <T> T	newInstance(Class<T> aClass)	Returns a new instance of a given class.
static Class<?>	toPrimitive(Class<?> aClass)	Returns primitive type for non-primitive.

Methods inherited from class java.lang.Object

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

Constructor Details

ClassUtils

public ClassUtils()

Method Details

getInstance

public static <T> T getInstance(Object anObj,
 Class<T> aClass)

Returns the given object as instance of given class, if it is.

newInstance

public static <T> T newInstance(Class<T> aClass)

Returns a new instance of a given class.

cloneCloneable

public static Object cloneCloneable(Cloneable anObj)

Returns a clone of given Cloneable object using reflection.

getClass

public static Class<?> getClass(Object anObj)

Returns the class for an object.

getMethod

public static Method getMethod(Class<?> aClass,
 String aName,
 Class<?>... theClasses)

Class.getMethod wrapper to isolate call to one place.

getMethodOrThrow

public static Method getMethodOrThrow(Class<?> aClass,
 String aName,
 Class<?>... theClasses)
                               throws NoSuchMethodException

Class.getMethod wrapper to isolate call to one place.

Throws:

NoSuchMethodException

toPrimitive

public static Class<?> toPrimitive(Class<?> aClass)

Returns primitive type for non-primitive.

fromPrimitive

public static Class<?> fromPrimitive(Class<?> aClass)

Returns non-primitive type for primitive.

getCommonClass

public static Class<?> getCommonClass(List<?> aList)

Returns the common ancestor class for a list of objects.

getCommonClass

public static Class<?> getCommonClass(Object anObj1,
 Object anObj2)

Returns the common ancestor class for two objects.