Set Property

The SetProperty EIP is used for setting an Exchange property.

An Exchange property is a key/value set as a Map on the org.apache.camel.Exchange instance. This is not for setting property placeholders.

Options

The Set Property eip supports 0 options, which are listed below.

Name Description Default Type

note

Sets the note of this node.

String

description

Sets the description of this node.

String

disabled

Disables this EIP from the route.

false

Boolean

name

Required Name of exchange property to set a new value. The simple language can be used to define a dynamic evaluated exchange property name to be used. Otherwise a constant name will be used.

String

expression

Required Expression to return the value of the message exchange property.

ExpressionDefinition

Exchange properties

The Set Property eip has no exchange properties.

Example

The following example shows how to set a property on the exchange in a Camel route:

  • Java

  • XML

  • YAML

from("direct:a")
    .setProperty("myProperty", constant("test"))
    .to("direct:b");
<route>
    <from uri="direct:a"/>
    <setProperty name="myProperty">
        <constant>test</constant>
    </setProperty>
    <to uri="direct:b"/>
</route>
- route:
    from:
      uri: direct:a
      steps:
        - setProperty:
            name: myProperty
            expression:
              constant:
                expression: test
        - to:
            uri: direct:b

Setting an exchange property from another exchange property

You can also set an exchange property with the value from another exchange property.

In the example, we set the exchange property foo with the value from an existing exchange property named bar.

  • Java

  • XML

  • YAML

from("direct:a")
    .setProperty("foo", exchangeProperty("bar"))
    .to("direct:b");
<route>
    <from uri="direct:a"/>
    <setProperty name="foo">
        <exchangeProperty>bar</exchangeProperty>
    </setProperty>
    <to uri="direct:b"/>
</route>
- route:
    from:
      uri: direct:a
      steps:
        - setProperty:
            name: foo
            expression:
              exchangeProperty:
                expression: bar
        - to:
            uri: direct:b

Setting an exchange property with the current message body

It is also possible to set an exchange property with a value from anything on the Exchange such as the message body, where we use the Simple language to refer to the message body:

  • Java

  • XML

  • YAML

from("direct:a")
    .setProperty("myBody", simple("${body}"))
    .to("direct:b");
<route>
    <from uri="direct:a"/>
    <setProperty name="myBody">
        <simple>${body}</simple>
    </setProperty>
    <to uri="direct:b"/>
</route>
- route:
    from:
      uri: direct:a
      steps:
        - setProperty:
            name: myBody
            expression:
              simple:
                expression: "${body}"
        - to:
            uri: direct:b
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