com.gargoylesoftware.base.gui
Class DefaultComponentLoader

java.lang.Object
  com.gargoylesoftware.base.gui.DefaultComponentLoader

All Implemented Interfaces:

ComponentLoader

public class DefaultComponentLoader
extends java.lang.Object
implements ComponentLoader

A default implementation of ComponentLoader that uses reflection to instantiate components.

Version:

$Revision: 1.6 $

Author:

Mike Bowler

Field Summary

private java.lang.Class	clazz_
private boolean	wrapInJScrollPane_

Constructor Summary

DefaultComponentLoader(java.lang.Class clazz)
Create a new loader.

DefaultComponentLoader(java.lang.Class clazz, boolean wrapInJScrollPane)
Create a new loader.

DefaultComponentLoader(java.lang.String className)
Create a new loader.

Method Summary

protected void	assertNotNull(java.lang.String fieldName, java.lang.Object object) Throw an Exception if the specified object is null.
java.awt.Component	loadComponent() Load the component.

Methods inherited from class java.lang.Object

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

Field Detail

clazz_

private final java.lang.Class clazz_

wrapInJScrollPane_

private final boolean wrapInJScrollPane_

Constructor Detail

DefaultComponentLoader

public DefaultComponentLoader(java.lang.String className)
                       throws java.lang.ClassNotFoundException

Create a new loader.

Parameters:

className - The name of the class that will be used to create the new object. This class must have a public no-arg constructor and must be an instance of java.awt.Component.

Throws:

java.lang.ClassNotFoundException - If the class cannot be found.

DefaultComponentLoader

public DefaultComponentLoader(java.lang.Class clazz)

Create a new loader.

Parameters:

clazz - The class that will be used to create the new object. This class must have a public no-arg constructor and must be an instance of java.awt.Component.

DefaultComponentLoader

public DefaultComponentLoader(java.lang.Class clazz,
                              boolean wrapInJScrollPane)

Create a new loader.

Parameters:

clazz - The class that will be used to create the new object. This class must have a public no-arg constructor and must be an instance of java.awt.Component.

wrapInJScrollPane - If true then the returned component will be a JScrollPane which contains the loaded component.

Method Detail

loadComponent

public java.awt.Component loadComponent()
                                 throws java.lang.Exception

Load the component.

Specified by:

loadComponent in interface ComponentLoader

Returns:

the loaded component.

Throws:

java.lang.Exception - If something went wrong during the creation of the component.

assertNotNull

protected final void assertNotNull(java.lang.String fieldName,
                                   java.lang.Object object)

Throw an Exception if the specified object is null.

Parameters:

fieldName - The name of the field that we are checking.

object - The value of the field that we are checking