How can I pass an object to a JSP tag?

Question

I have a JSP page that contains a scriplet where I instantiate an object. I would like to pass that object to the JSP tag without using any cache.

For example I would like to accomplish this:

<%@ taglib prefix="wf" uri="JspCustomTag" %>  <%   Object myObject = new Object(); %>  <wf:my-tag obj=myObject /> 

I'm trying to avoid directly interacting with any of the caches (page, session, servletcontext), I would rather have my tag handle that.

Answer 1

A slightly different question that I looked for here: "How do you pass an object to a tag file?"

Answer: Use the "type" attribute of the attribute directive:

<%@ attribute name="field"                required="true"               type="com.mycompany.MyClass" %> 

The type defaults to java.lang.String, so without it you'll get an error if you try to access object fields saying that it can't find the field from type String.

Answer 2

<jsp:useBean id="myObject" class="java.lang.Object" scope="page" /> <wf:my-tag obj="${myObject}" /> 

Its not encouraged to use Scriptlets in JSP page. It kills the purpose of a template language.