Bean Component
The bean: component binds beans to Camel message exchanges.
URI format
bean:someName[?options]
Where someName can be any string which is used to lookup the bean in the Registry
Options
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. |
cache |
boolean |
false |
If enabled Camel will cache the result of the first Registry lookup. Cache can be enabled if the bean in the Registry is defined as a singleton scope. |
multiParameterArray |
boolean |
false |
Camel 1.5: How to treat the parameters which are passed from the message body, if it is true, the in message body should be the an array of parameters. |
Using
The object instance that is used to consume messages must be explicitly registered with the Registry. For example if you are using Spring you must define the bean in the spring.xml; or if you don't use Spring then put the bean in JNDI.
Once an endpoint has been registered, you can build Camel routes that use it to process exchanges.
A bean: endpoint cannot be defined as the input to the route; i.e. you cannot consume from it, you can only route from some inbound message Endpoint to the bean endpoint as output. So consider using a direct: or queue: endpoint as the input.
You can use the createProxy() methods on ProxyHelper to create a proxy that will generate BeanExchanges and send them to any endpoint:
Bean Binding
How bean methods are chosen to be invoked (if they are not specified explicitly via the method parameter) and how parameter values are constructed from the Message are all defined by the Bean Binding mechanism which is used througout all of the various Bean Integration mechanisms in Camel.