Restrictions to Web Service Implementation
Beans
In the endpoint of a Web service, you must not use any of the following types anywhere
● A class extending another class and at the same time implementing an interface.
There is an exception to this rule when a class implements any of the marker interfaces listed below (the exception is explained in the entry for the marker interfaces in the table below).
● Hashed table-like types.
● Classes/objects that cannot be serialized.
Supported Types in Web Service Implementation Beans
The following types from java*.packages are supported in endpoints of Web services:
Simple Types Wrappers |
java.lang.Void java.lang.Boolean java.lang.Byte java.lang.Short java.lang.Integer java.lang.Long java.lang.Float java.lang.Double java.lang.String |
Marker Interfaces |
java.io.Serializable java.lang.Cloneable java.lang.Comparable
A class can implement any of these interfaces and extend another class. Also, a class can implement two interfaces, one of them being any of the interfaces listed here, |
Array classes |
java.util.ArrayList java.util.HashSet java.util.LinkedList java.util.List java.util.Stack java.util.Vector |
Date/Time |
java.util.Calendar java.util.Date java.util.GregorianCalendar java.sql.Time java.sql.Timestamp javax.xml.datatype.XMLGregorianCalendar |
Long numbers |
java.math.BigInteger java.math.BigDecimal |
Exception |
java.lang.Exception java.rmi.RemoteException |
Object |
java.lang.Object |
Other |
javax.xml.namespace.QName java.util.UUID java.net.URI java.awt.Image javax.xml.datatype.Duration javax.xml.transform.Source javax.activation.DataHandler java.util.HashMap java.util.Collection |