Chapter 4 provides details for the case where the language attribute is 

 java 

.

For example, the 

 action 

defined later herein uses this mechanism in order to, possibly instantiate, and subsequently 

expose the named JavaBeans component to a page at client request processing time.

For example:

<% {

 // introduce a new block %>

...

<% 

/* 

 * the tag above creates or obtains the Customer Bean

 * reference, associates it with the name  customer  in the

 * PageContext, and declares a Java programming language 

 * variable of the

 * same name initialized to the object reference in this

 * block's scope.

 */

%>

...

<%= customer.getName(); %>

...

<% }

 // close the  block 

%> 

<% 

// the variable customer is out of scope now but

// the object is still valid (and accessible via pageContext)

%>

2.12.3

The 

scope

 Attribute

The 

scope= page|request|session|application 

 attribute/value tuple is 

associated with, and modifies the behavior of the 

id

 attribute described above (it has both 

translation time and client request processing time semantics). In particular it describes the 

namespace, the implicit lifecycle of the object reference associated with the 

name

, and the 

APIs used to access this association, as follows:

59

JavaServer Pages 1.1 Specification  

November 30, 1999