Web Flow attempts to use the Unified EL by default. jboss-el is currently the default EL implementation. When found in your classpath along with the el-api, it will be used automatically. You can find the JBoss EL jar in the SpringSource Bundle Repository.

	Note
	The el-api dependency is typically provided by your web container. Tomcat 6 includes it, for example.

OGNL is the other EL supported by Web Flow 2. OGNL is the EL most familiar to Web Flow version 1.0 users. To use ognl, simply include ognl in your classpath instead of jboss-el. Please refer to the OGNL language guide for specifics on its EL syntax.