The Java EE 6 Tutorial, Volume I

Unified Expression Language Support

Based on the JavaServer Faces support for unified expression language (EL) syntax defined by JSP 2.1, Facelets uses EL expressions to reference properties and methods of backing beans. EL expressions can be used to bind component objects or values to managed-bean methods or managed-bean properties. For more information on using EL expressions, see Using the EL to Reference Backing Beans.