To bind exchanges to a bean method, you can define a method signature that conforms to certain conventions. In particular, there are two basic conventions for method signatures:
If you want to implement a bean method that accesses or modifies the incoming message body, you must define a method signature that takes a single String argument and returns a String value as shown in Example 5.2.
Example 5.2. Bean method for processing a message body
package com.acme;
public class MyBeanProcessor {
public String processBody(String body) {
// Do whatever you like to 'body'...
return newBody;
}
}For greater flexibility, you can implement a bean method that accesses the incoming
exchange. This enables you to access or modify all headers, bodies, and exchange
properties. For processing exchanges, the method signature takes a single
org.apache.camel.Exchange parameter and returns void
as shown in Example 5.3.
Example 5.3. Bean method for processing an exchange
package com.acme;
public class MyBeanProcessor {
public void processExchange(Exchange exchange) {
// Do whatever you like to 'exchange'...
exchange.getIn().setBody("Here is a new message body!");
}
} |  |  |
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