In our final example, the object should have been present in the session. If so, it is given the 


local name wombat with 


WombatType


. A 


ClassCastException


 may be raised if the 


object is of the wrong class, and an 


InstantiationException


 may be raised if the 


object is not defined.




2.13.1.1


Syntax


This action may or not have a body. If the action has no body, it is of the form:




typeSpec />


typeSpec ::=class= className  |


class= className  type= typeName  |


type= typeName  class= className  |


beanName= beanName  type= typeName  |


type= typeName  beanName= beanName  |


type= typeName 


If the action has a body, it is of the form:




typeSpec >


body




In this case, the body will be invoked if the Bean denoted by the action is created. Typically, 


the 


body


 will contain either scriptlets or 


jsp:setProperty


 tags that will be used to 


modify the newly created object, but the contents of the body is not restricted.


The 




 tag has the following attributes:


id


The name used to identify the object instance in the specified scope's 


namespace, 


and


 also the scripting variable name declared and 


initialized with that object reference. The name specified is case 


sensitive and shall conform to the current scripting language variable 


naming conventions.


scope


The scope within which the reference is available. The default value is 


page


. See the description of the 


scope


 attribute defined earlier herein


63


JavaServer Pages 1.1 Specification  


November 30, 1999






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