CODEWITHSUNDEEP
jspeltaglib
ariso
ariso

Reputation: 1443

How does EL search for an attribute?

How does EL search for an attribute in JSP? and how to disable it?

does any one know the performance of EL?

Upvotes: 1

Views: 1332

Answers (2)

Ramesh PVK
Ramesh PVK

Reputation: 15446

An EL is resolved using an ELResolver chain. The order of the EL resolvers is as following:

  • ImplicitObjectELResolver
  • ELResolvers registered via this method, in the order in which they are registered.
  • MapELResolver
  • ListELResolver
  • ArrayELResolver
  • BeanELResolver
  • ScopedAttributeELResolver

Each token of EL is given this resolver chain to resolve.

Upvotes: 0

Taylor Leese
Taylor Leese

Reputation: 52300

In EL, if an object is not an implicit object it searches through the various scopes for an object of the given name. The order in which the search takes place is below:

  1. Page scope
  2. Request scope
  3. Session scope
  4. Application scope

To disable EL: <%@ page isELIgnored ="true" %>

Upvotes: 3

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