net.sf.xbus.base.core.reflection
Class ReflectionSupport

java.lang.Object
  net.sf.xbus.base.core.reflection.ReflectionSupport

public class ReflectionSupport
extends java.lang.Object

ReflectionSupport provides methods to create objects and call methods with the reflection API more easy.

Constructor Summary

ReflectionSupport()

Method Summary

static java.lang.Object	callMethod(java.lang.String methodname, java.lang.Object inObject, java.lang.Class[] parameterTypes, java.lang.Object[] arguments) Calls a method with the help of the reflection API.
static java.lang.Class	classForName(java.lang.String className) Returns the Class object associated with the class or interface with the given string name.
static java.lang.Object	createObject(java.lang.String classname) Create an object of the class with the given name.
static java.lang.Object	createObject(java.lang.String classname, java.lang.Class[] conArgsClass, java.lang.Object[] conArgs) Creates an object of the class with the given name.

Methods inherited from class java.lang.Object

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

Constructor Detail

ReflectionSupport

public ReflectionSupport()

Method Detail

createObject

public static java.lang.Object createObject(java.lang.String classname)
                                     throws XException

Create an object of the class with the given name. The class must have a constructor without parameters.

Parameters:

classname - fully qualified name of the class

Returns:

an object of the class with the given name

Throws:

XException - if the object cannot be created

createObject

public static java.lang.Object createObject(java.lang.String classname,
                                            java.lang.Class[] conArgsClass,
                                            java.lang.Object[] conArgs)
                                     throws XException

Creates an object of the class with the given name.

Parameters:

classname - fully qualified name of the class

conArgsClass - the parameter types for the constructor

conArgs - array of objects to be passed as arguments to the constructor call

Returns:

a new object created by calling the constructor this object represents

Throws:

XException - if the object cannot be created

classForName

public static java.lang.Class classForName(java.lang.String className)
                                    throws XException

Returns the Class object associated with the class or interface with the given string name.

Parameters:

className - the fully qualified name of the desired class

Returns:

the Class object for the class with the specified name

Throws:

XException - if the class cannot be found

callMethod

public static java.lang.Object callMethod(java.lang.String methodname,
                                          java.lang.Object inObject,
                                          java.lang.Class[] parameterTypes,
                                          java.lang.Object[] arguments)
                                   throws XException

Calls a method with the help of the reflection API.

Parameters:

methodname - the name of the method to be called

inObject - the object for which the method shall be called

parameterTypes - an array containing the classes of the parameters

arguments - an array with the parameters

Returns:

the result of the method call

Throws:

XException - if the method cannot be called