Chapter 13. Introduction

Abstract

This chapter provides an overview of all the expression languages supported by Apache Camel.

13.1. Overview of the Languages

Table 13.1, “Expression and Predicate Languages” gives an overview of the different syntaxes for invoking expression and predicate languages.

Table 13.1. Expression and Predicate Languages
Language	Static Method	Fluent DSL Method	XML Element	Annotation	Artifact
Section 2.4, “Bean Integration”	`bean()`	`EIP().method()`	`method`	`@Bean`	Camel core
Constant	`constant()`	`EIP().constant()`	`constant`	`@Constant`	Camel core
EL	`el()`	`EIP().el()`	`el`	`@EL`	`camel-juel`
Groovy	`groovy()`	`EIP().groovy()`	`groovy`	`@Groovy`	`camel-groovy`
Header	`header()`	`EIP().header()`	`header`	`@Header`	Camel core
JavaScript	`javaScript()`	`EIP().javaScript()`	`javaScript`	`@JavaScript`	`camel-script`
JoSQL	`sql()`	`EIP().sql()`	`sql`	`@SQL`	`camel-josql`
JSonPath	None	`EIP().jsonpath()`	`jsonpath`	`@JSonPath`	`camel-jsonpath`
JXPath	None	`EIP().jxpath()`	`jxpath`	`@JXPath`	`camel-jxpath`
MVEL	`mvel()`	`EIP().mvel()`	`mvel`	`@MVEL`	`camel-mvel`
OGNL	`ognl()`	`EIP().ognl()`	`ognl`	`@OGNL`	`camel-ognl`
PHP	`php()`	`EIP().php()`	`php`	`@PHP`	`camel-script`
Property	`property()`	`EIP().property()`	`property`	`@Property`	Camel core
Python	`python()`	`EIP().python()`	`python`	`@Python`	`camel-script`
Ref	`ref()`	`EIP().ref()`	`ref`	N/A	Camel core
Ruby	`ruby()`	`EIP().ruby()`	`ruby`	`@Ruby`	`camel-script`
Simple/File	`simple()`	`EIP().simple()`	`simple`	`@Simple`	Camel core
SpEL	`spel()`	`EIP().spel()`	`spel`	`@SpEL`	`camel-spring`
XPath	`xpath()`	`EIP().xpath()`	`xpath`	`@XPath`	Camel core
XQuery	`xquery()`	`EIP().xquery()`	`xquery`	`@XQuery`	`camel-saxon`