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As the Spring XML does not have all the power as the Java DSL with all its various builder methods, you had to resort to use some other languages
for testing with simple operators. Now you can do this with the simple language. In the sample below we want to test if the header is a widget order:

    <from uri="seda:orders">
       <filter>
           <simple>in<simple>${in.header.type} == 'widget'</simple>
           <to uri="bean:orderService?method=handleWidget"/>
       </filter>
    </from>