Chapter 3: Components, Datatypes, and Type Mappings

Supported datatypes

This section describes the datatypes supported in WST. The datatype must belong to a supported component type for it to be available as a Web service. Supported datatypes include:

JAX-RPC defined data types – Refer to chapter four (WSDL/XML to Java Mapping) and five (Java to XML/WSDL Mapping) of the Java API for XML-based RPC JAX-RPC 1.0 specification. See the JAX-RPC download site
Java with IDL datatypes – the component’s method declarations use the datatype mappings that are specified by the CORBA document, IDL to Java Language Mapping Specification (formal/99-07-53).
CORBA C++ with IDL datatypes – the component’s method declarations use the OMG standard for translating CORBA IDL to C++. For more specifics, see C++ Language Mapping Specification (formal/99-07-41). You can download this document from the OMG Web site. C++ datatype mappings are the same as the Java/IDL component datatype mappings that are listed in Table 3-1.

Table 3-1 lists the datatypes supported in WST and EAServer by default, and the equivalent XML XSD types.

**Table 3-1: Java datatype and XML equivalents**
XML XSD type	Java datatypes
xsd:boolean	org.omg.CORBA.BooleanHolder
xsd:byte	org.omg.CORBA.ByteHolder
xsd:double	org.omg.CORBA.DoubleHolder
xsd:float	org.omg.CORBA.FloatHolder
xsd:int	org.omg.CORBA.IntHolder
xsd:long	org.omg.CORBA.LongHolder
xsd:short	org.omg.CORBA.ShortHolder
xsd:string	org.omg.CORBA.StringHolder
xsd:byte	BCD.BinaryHolder
xsd:decimal	BCD.Decimal
xsd:decimal	BCD.DecimalHolder
xsd:base64Binary (same as byte[])	BCD.Money
xsd:base64Binary (same as byte[])	BCD.MoneyHolder
xsd:double	MJD.Date
xsd:double	MJD.Time
xsd:double	MJD.Timestamp

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