Tag Name: <a2:set />

Description

Assigns a value to a variable in a specified scope

The set tag assigns a value to a variable in a specified scope. It is useful when you wish to assign a variable to a complex expression and then simply reference that variable each time rather than the complex expression. This is useful in both cases: when the complex expression takes time (performance improvement) or is hard to read (code readability improvement).

• application - the value will be set in application scope according to servlet spec. using the name as its key
• session - the value will be set in session scope according to servlet spec. using the name as key
• request - the value will be set in request scope according to servlet spec. using the name as key
• page - the value will be set in request scope according to servlet sepc. using the name as key
• action - the value will be set in the request scope and SAF's action context using the name as key

If no scope is specified, it will default to action scope.

Parameters

• name* (String): The name of the new variable that is assigned the value of value
• value (Object): The value that is assigned to the variable named name
• scope (String): The scope in which to assign the variable. Can be application, session, request, page, or action. By default it is action.

Examples

  <a:set name="personName" value="person.name"/> Hello, <a:property value="#personName"/>. How are you?  

Attributes

Name	Required	Default	Type	Description
name	true		String	The name of the new variable that is assigned the value of value
scope	false	action	String	The scope in which to assign the variable. Can be application, session, request, page, or action.
value	false		Object/String	The value that is assigned to the variable named name
id	false		Object/String	id for referencing element. For UI and form tags it will be used as HTML id attribute