[miroconnect@yahoo.com]

		customMenuComponent.addCustomLink(new CustomLinkComponenet("strlink","Storage Inbox",Index.class) {
			protected BookmarkablePageLink getBookmarkablePageLink() {
				
				BookmarkablePageLink bookmarkablePageLink=   new BookmarkablePageLink("link",clazz){
					protected void onBeforeRender() {
						super.onBeforeRender();
					}
				};
				return bookmarkablePageLink;
			}
		});
		
		
		customMenuComponent.addCustomLink(new CustomLinkComponenet("strlink","Storage Inbox",Index.class) {
			protected BookmarkablePageLink getBookmarkablePageLink() {
				
				BookmarkablePageLink bookmarkablePageLink=   super.getBookmarkablePageLink(){
					protected void onBeforeRender() {
						super.onBeforeRender();
					}
				};
				return bookmarkablePageLink;
			}
		});

the second block of code does not compile please explain me why and what is the workaround ? i can override a method on a object when I initialize with new but cannot override if I get the object from super or somebody constructs why ?

[ad64105]

simply put

new BookmarkablePageLink("link",clazz){....}

is defining a class and instantiating it at the same time. Its called an annoynomous class. the one lne above is effectively doing:

Class AnnonClass extends BookmarkablePageLink {.....};
new AnnonClass("link",clazz);

super.getBookmarkablePageLink() is call to a method. It returns an instance of BookmarkablePageLink. You can't redefine an instance on the fly.

Why are you trying to the 2nd approach?

Andy

[pjupson]

As a suggestion, I've seen API's that use a construction technique where every object is extended from an interface.

If you have access to the BookmarkablePageLink class instead of:

BookmarkablePageLink bookmarkablePageLink = super.getBookmarkablePageLink(){
protected void onBeforeRender() {
super.onBeforeRender();
}
};

you could try something like

BookmarkablePageLink bookmarkablePageLink = new BookmarkablPangeLink(super.getBookmarkablePageLink ()) {
protected void onBeforeRender() {
super.onBeforeRender();
}
};

Assuming that BookmarkablePageLink is an extension of whatever super.getBookmarkablePageLink() returns you can use the constructor in the BookmarkablePageLink class to construct the object. Then you should be able to override the BookmarkablePageLink they way you were approaching it.

If you don't have access to the BookmarkablePageLink class you should extend it and add the constructor to create the object from whatever the super.getBookmarkablePageLink() object is... Unless BookmarkablePageLink is final... I hate it when people don't let me extend stuff.