Property Expression Language

The Property Expression Language allows you to extract values of named exchange properties.

Example usage

The recipientList element of the Spring DSL can utilize a property expression like:

<route>
  <from uri="direct:a" />
  <recipientList>
    <property>myProperty</property>
  </recipientList>
</route>

In this case, the list of recipients are contained in the property 'myProperty'.

And the same example in Java DSL:

from("direct:a").recipientList(property("myProperty"));

And with a slightly different syntax where you use the builder to the fullest (i.e. avoid using parameters but using stacked operations, notice that property is not a parameter but a stacked method call)

  from("direct:a").recipientList().property("myProperty");

Dependencies

The Property language is part of camel-core.