org.datanucleus.store.rdbms.datasource.dbcp.jocl

Class ConstructorUtil

java.lang.Object

org.datanucleus.store.rdbms.datasource.dbcp.jocl.ConstructorUtil

public class ConstructorUtil
extends Object

Miscellaneous Constructor related utility functions.

Version:

$Revision: 479137 $ $Date: 2006-11-25 10:51:48 -0500 (Sat, 25 Nov 2006) $

Author:

Rodney Waldhoff

Constructor Summary

Constructors

Constructor and Description
ConstructorUtil()

Method Summary

Modifier and Type	Method and Description
static Constructor	getConstructor(Class type, Class[] argTypes) Returns a Constructor for the given method signature, or null if no such Constructor can be found.
static Object	invokeConstructor(Class type, Class[] argTypes, Object[] argValues) Creates a new instance of the specified type using a Constructor described by the given parameter types and values.

Methods inherited from class java.lang.Object

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

Constructor Detail

ConstructorUtil

public ConstructorUtil()

Method Detail

getConstructor

public static Constructor getConstructor(Class type,
                                         Class[] argTypes)

Returns a Constructor for the given method signature, or null if no such Constructor can be found.

Parameters:

type - the (non-null) type of Object the returned Constructor should create

argTypes - a non-null array of types describing the parameters to the Constructor.

Returns:

a Constructor for the given method signature, or null if no such Constructor can be found.

See Also:

invokeConstructor(java.lang.Class, java.lang.Class[], java.lang.Object[])

invokeConstructor

public static Object invokeConstructor(Class type,
                                       Class[] argTypes,
                                       Object[] argValues)
                                throws InstantiationException,
                                       IllegalAccessException,
                                       InvocationTargetException

Creates a new instance of the specified type using a Constructor described by the given parameter types and values.

Parameters:

type - the type of Object to be created

argTypes - a non-null array of types describing the parameters to the Constructor.

argValues - a non-null array containing the values of the parameters to the Constructor.

Returns:

a new instance of the specified type using a Constructor described by the given parameter types and values.

Throws:

InstantiationException - if an error occurs

IllegalAccessException - if an error occurs

InvocationTargetException - if an error occurs