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An example demonstrating declarative transformation and validation along data type declaration using Spring DSL
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<?xml version="1.0" encoding="UTF-8"?>
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    Licensed to the Apache Software Foundation (ASF) under one or more
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    http://www.apache.org/licenses/LICENSE-2.0

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<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:camel="http://camel.apache.org/schema/spring"
       xsi:schemaLocation="
         http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
         http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
         http://camel.apache.org/schema/spring http://camel.apache.org/schema/spring/camel-spring.xsd">

    <!-- START SNIPPET: e1 -->
    <bean id="orderProcessor" class="org.apache.camel.example.transformer.demo.OrderProcessor"/>
    <!-- END SNIPPET: e1 -->

    <camel:camelContext id="order">

        <!-- START SNIPPET: e2 -->
        <camel:dataFormats>
            <camel:json id="jsondf" library="Jackson" unmarshalTypeName="org.apache.camel.example.transformer.demo.Order"/>
        </camel:dataFormats>
        <!-- END SNIPPET: e2 -->

        <!-- START SNIPPET: e3 -->
        <camel:transformers>
            <!-- specifying from&to data type for the Java-CSV transformation -->
            <camel:dataFormatTransformer fromType="java:org.apache.camel.example.transformer.demo.Order" toType="csv:CSVOrder">
                <camel:bindy id="csvdf" type="Csv" classType="org.apache.camel.example.transformer.demo.Order"/>
            </camel:dataFormatTransformer>
            <!-- instead of exact from&to type, scheme name can be specified to apply for all the Java-XML transformation -->
            <camel:dataFormatTransformer scheme="xml">
                <camel:jaxb id="xmldf" contextPath="org.apache.camel.example.transformer.demo"/>
            </camel:dataFormatTransformer>
            <!--  for all the Java-JSON transformation, referring to already defined DataFormat -->
            <camel:dataFormatTransformer ref="jsondf" scheme="json"/>
        </camel:transformers>
        <!-- END SNIPPET: e3 -->
        <!-- START SNIPPET: e8 -->
        <camel:validators>
            <camel:endpointValidator type="xml" uri="validator:xsd/schema.xsd"/>
            <camel:predicateValidator type="json">
                <camel:simple>${body} contains 'orderId' and ${body} not contains 'accepted'</camel:simple>
            </camel:predicateValidator>
            <camel:customValidator type="java:org.apache.camel.example.transformer.demo.OrderResponse"
            className="org.apache.camel.example.transformer.demo.OrderResponseValidator"/>
        </camel:validators>
        <!-- END SNIPPET: e8 -->

        <!-- START SNIPPET: e4 -->
        <camel:route id="xml">
            <camel:from uri="direct:xml"/>
            <!--  This route expects XML as an input/output type -->
            <camel:inputType urn="xml:XMLOrder" validate="true"/>
            <camel:outputType urn="xml:XMLOrderResponse" validate="true"/>
            <camel:to uri="direct:java"/>
        </camel:route>
        <!-- END SNIPPET: e4 -->

        <!-- START SNIPPET: e5 -->
        <camel:route id="json">
            <camel:from uri="direct:json"/>
            <!--  This route expects JSON as an input/output type -->
            <!--  Only scheme 'json' is specified for the type, which means it handles arbitrary JSON content -->
            <camel:inputType urn="json" validate="true"/>
            <camel:outputType urn="json"/>
            <camel:to uri="direct:java"/>
        </camel:route>
        <!-- END SNIPPET: e5 -->

        <!-- START SNIPPET: e6 -->
        <camel:route id="java">
            <camel:from uri="direct:java"/>
            <!-- This route expects Java object as an input/output type. -->
            <!--  If the request comes from xml route, the XML-Java transformer is applied. -->
            <!--  If it comes from json route, the JSON-Java transformer is applied. -->
            <!--  If it's sent via ProducerTemplate directly without specifying input/output type, no transformer is applied. -->
            <camel:inputType urn="java:org.apache.camel.example.transformer.demo.Order"/>
            <camel:outputType urn="java:org.apache.camel.example.transformer.demo.OrderResponse" validate="true"/>
            <camel:wireTap uri="direct:csv"/>
            <camel:process ref="orderProcessor"/>
        </camel:route>
        <!-- END SNIPPET: e6 -->

        <!-- START SNIPPET: e7 -->
        <camel:route id="csv">
            <camel:from uri="direct:csv"/>
            <!-- This route expects CSV as an input type, therefore Java-CSV transformation is triggered -->
            <camel:inputType urn="csv:CSVOrder"/>
            <camel:to uri="file:target/output?fileExist=Append&amp;fileName=orders.csv"/>
        </camel:route>
        <!-- END SNIPPET: e7 -->
    </camel:camelContext>

</beans>