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The class: component binds beans to Camel message exchanges. It works in the same way as the Bean component but instead of looking up beans from a Registry it creates the bean based on the class name.

URI format

Code Block

class:className[?options]

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Name

Type

Default

Description

method

String

null

The method name that bean will be invoked. If not provided, Camel will try to pick the method itself. In case of ambiguity an exception is thrown. See Bean Binding for more details.

multiParameterArray

boolean

false

How to treat the parameters which are passed from the message body; if it is true, the In message body should be an array of parameters.

bean.xxx nullCamel 2.17: To configure additional options on the create bean instance from the class name. For example to configure a foo option on the bean, use bean.foo=123.

You can append query options to the URI in the following format, ?option=value&option=value&...

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You simply use the class component just as the Bean component but by specifying the fully qualified classname instead.
For example to use the MyFooBean you have to do as follows:

Code Block

    from("direct:start").to("class:org.apache.camel.component.bean.MyFooBean").to("mock:result");

You can also specify which method to invoke on the MyFooBean, for example hello:

Code Block

    from("direct:start").to("class:org.apache.camel.component.bean.MyFooBean?method=hello").to("mock:result");

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In the endpoint uri you can specify properties to set on the created instance, for example if it has a setPrefix method:

Code Block
   // Camel 2.17 onwards
   from("direct:start")
        .to("class:org.apache.camel.component.bean.MyPrefixBean?bean.prefix=Bye")
        .to("mock:result");
 
   // Camel 2.16 and older 
   from("direct:start")
        .to("class:org.apache.camel.component.bean.MyPrefixBean?prefix=Bye")
        .to("mock:result");

And you can also use the # syntax to refer to properties to be looked up in the Registry.

Code Block
    // Camel 2.17 onwards
    from("direct:start")
        .to("class:org.apache.camel.component.bean.MyPrefixBean?bean.cool=#foo")
        .to("mock:result");

    // Camel 2.16 and older
    from("direct:start")
        .to("class:org.apache.camel.component.bean.MyPrefixBean?cool=#foo")
        .to("mock:result");

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Tip
titleSee more

See more details at the Bean component as the class component works in much the same way.

Include Page
Endpoint See Also
Endpoint See Also