Variable

Since Camel 4.4

The Variable Expression Language allows you to extract values of named variables.

Variable Options

The Variable language supports 1 options, which are listed below.

Name Default Java Type Description

trim (advanced)

true

Boolean

Whether to trim the source code to remove leading and trailing whitespaces and line breaks.

Example usage

The recipientList EIP can utilize a variable:

  • Java

  • XML

  • YAML

from("direct:a").recipientList(variable("myVar"));
<route>
  <from uri="direct:a" />
  <recipientList>
    <variable>myVar</variable>
  </recipientList>
</route>
- route:
    from:
      uri: direct:a
      steps:
        - recipientList:
            expression:
              variable:
                expression: myVar

In this case, the list of recipients are contained in the variable 'myVar'.

Dependencies

The Header language is part of camel-core.

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