setAttribute
public abstract void setAttribute(java.lang.String name,
java.lang.Object value,
int scope)
- Register the name and value specified with appropriate scope semantics. If the value passed in is
null
, this has the same effect as callingremoveAttribute( name, scope )
.
- Parameters:
name
- the name of the attribute to setvalue
- the object to associate with the name, or null if the attribute is to be removed from the specified scope.scope
- the scope with which to associate the name/object- Throws:
java.lang.NullPointerException
- if the name is nullIllegalArgumentException
- if the scope is invalidIllegalStateException
- if the scope is PageContext.SESSION_SCOPE but the page that was requested does not participate in a session or the session has been invalidated.