Axis website is the best place for this kind of questions..
A sample typeMapping would look like..
<typeMapping xmlns:ns="http://soapinterop.org/xsd"
qname="ns:ArrayOfString"
type="java:java.lang.String[]"
serializer="org.apache.axis.encoding.ser.ArraySerializerFactory"
deserializer="org.apache.axis.encoding.ser.ArrayDeserializerFactory"
encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"
/>
..Yes i got it from
WSDD reference,
also using java2wsdl will help you develop sample wsdd's...