car.xml

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<sbe:messageSchema xmlns:sbe="http://www.fixprotocol.org/ns/simple/1.0" package="test" id="1" version="1" semanticVersion="1" byteOrder="littleEndian">

    <types>
        <composite name="messageHeader" description="Message identifiers and length of message root">
            <type name="blockLength" primitiveType="uint16"/>
            <type name="templateId" primitiveType="uint16"/>
            <type name="schemaId" primitiveType="uint16"/>
            <type name="version" primitiveType="uint16"/>
        </composite>
        <composite name="groupSizeEncoding" description="Repeating group dimensions">
            <type name="blockLength" primitiveType="uint16"/>
            <type name="numInGroup" primitiveType="uint8"/>
        </composite>
        <composite name="varDataEncoding">
            <type name="length" primitiveType="uint8"/>
            <type name="varData" primitiveType="uint8" length="0" characterEncoding="UTF-8"/>
        </composite>
    </types>

    <types>
        <type name="ModelYear" primitiveType="uint16"/>
        <type name="VehicleCode" primitiveType="char" length="6"/>
        <type name="someNumbers" primitiveType="int32" length="5"/>
        <type name="Ron" primitiveType="uint8" minValue="90" maxValue="110"/>
        <composite name="Engine">
            <type name="capacity" primitiveType="uint16"/>
            <type name="numCylinders" primitiveType="uint8"/>
            <type name="maxRpm" primitiveType="uint16" presence="constant">9000</type>
            <type name="manufacturerCode" primitiveType="char" length="3"/>
            <type name="fuel" primitiveType="char" presence="constant">Petrol</type>
        </composite>
        <enum name="BooleanType" encodingType="uint8">
            <validValue name="FALSE">0</validValue>
            <validValue name="TRUE">1</validValue>
        </enum>
        <enum name="Model" encodingType="char">
            <validValue name="A">A</validValue>
            <validValue name="B">B</validValue>
            <validValue name="C">C</validValue>
        </enum>
        <set name="OptionalExtras" encodingType="uint8">
            <choice name="sunRoof">0</choice>
            <choice name="sportsPack">1</choice>
            <choice name="cruiseControl">2</choice>
        </set>
    </types>

    <sbe:message name="Car" id="1" description="Description of a basic Car">
        <field name="serialNumber" id="1" type="uint64"/>
        <field name="modelYear" id="2" type="ModelYear"/>
        <field name="available" id="3" type="BooleanType"/>
        <field name="code" id="4" type="Model"/>
        <field name="someNumbers" id="5" type="someNumbers"/>
        <field name="vehicleCode" id="6" type="VehicleCode"/>
        <field name="extras" id="7" type="OptionalExtras"/>
        <field name="engine" id="8" type="Engine"/>
        <group name="fuelFigures" id="9" dimensionType="groupSizeEncoding">
            <field name="speed" id="10" type="uint16"/>
            <field name="mpg" id="11" type="float"/>
        </group>
        <group name="performanceFigures" id="12" dimensionType="groupSizeEncoding">
            <field name="octaneRating" id="13" type="Ron"/>
            <group name="acceleration" id="14" dimensionType="groupSizeEncoding">
                <field name="mph" id="15" type="uint16"/>
                <field name="seconds" id="16" type="float"/>
            </group>
        </group>
        <data name="make" id="17" type="varDataEncoding"/>
        <data name="model" id="18" type="varDataEncoding"/>
    </sbe:message>

</sbe:messageSchema>