HashMap bean with generic type parameters

[Tobie Henderson]

Hi,

I would like to use a HashMap bean with generic type parameters. In a normal java program, this would be simple:

HashMap<Integer, String> map = new HashMap<Integer, String>();

However, when declaring it as a bean, the following code gives me an error:

<jsp:useBean id="map" class = "java.util.HashMap<Integer, String>" scope="application"/>

The error is:

The value for the useBean class attribute java.util.HashMap<Integer, String> is invalid.

Anyone know if it is even possible to declare such a bean with generic type parameters? I am asking because when I put keys and values into the HashMap, it is giving me unchecked errors such as:

warning: [unchecked] unchecked call to put(K,V) as a member of the raw type java.util.HashMap

Thanks
[ December 08, 2004: Message edited by: Tobie Henderson ]

[Bart Allen]

For a Class to be a valid JavaBean, it must have a public no arg constructor and appropriate getter and setter methods.
HashMap does have a no arg constructor, but does not have the appropriate getter and setters.
Why not create a new Class that is your JavaBean, and make it so that it has a HashMap along with the appropriate getter and setter methods?

[Bart Allen]

Also...
In order to use standard actions, the property needs to be either a String or a primitive. If it is not, you will need to use scripting.