XML Schema type, group, and element definitions are scoped using namespaces. The namespaces prevent possible naming clashes between entities that use the same name. Java packages serve a similar purpose. Therefore, Fuse Services Framework maps the target namespace of a schema document into a package containing the classes necessary to implement the structures defined in the schema document.
The name of the generated package is derived from a schema's target namespace using the following algorithm:
The URI scheme, if present, is stripped.
Note Fuse Services Framework will only strip the
http:
,https:
, andurn:
schemes.For example, the namespace
http:\\www.widgetvendor.com\types\widgetTypes.xsd
becomes\\widgetvendor.com\types\widgetTypes.xsd
.The trailing file type identifier, if present, is stripped.
For example,
\\www.widgetvendor.com\types\widgetTypes.xsd
becomes\\widgetvendor.com\types\widgetTypes
.The resulting string is broken into a list of strings using
/
and:
as separators.So,
\\www.widgetvendor.com\types\widgetTypes
becomes the list{"www.widegetvendor.com", "types", "widgetTypes"}
.If the first string in the list is an internet domain name, it is decomposed as follows:
The leading
www.
is stripped.The remaining string is split into its component parts using the
.
as the separator.The order of the list is reversed.
So,
{"www.widegetvendor.com", "types", "widgetTypes"}
becomes{"com", "widegetvendor", "types", "widgetTypes"}
Note Internet domain names end in one of the following:
.com
,.net
,.edu
,.org
,.gov
, or in one of the two-letter country codes.The strings are converted into all lower case.
So,
{"com", "widegetvendor", "types", "widgetTypes"}
becomes{"com", "widegetvendor", "types", "widgettypes"}
.The strings are normalized into valid Java package name components as follows:
If the strings contain any special characters, the special characters are converted to an underscore(
_
).If any of the strings are a Java keyword, the keyword is prefixed with an underscore(
_
).If any of the strings begin with a numeral, the string is prefixed with an underscore(
_
).
The strings are concatenated using
.
as a separator.So,
{"com", "widegetvendor", "types", "widgettypes"}
becomes the package name com.widgetvendor.types.widgettypes.
The XML Schema constructs defined in the namespace
http:\\www.widgetvendor.com\types\widgetTypes.xsd
are mapped to the Java package
com.widgetvendor.types.widgettypes.
A JAXB generated package contains the following:
A class implementing each complex type defined in the schema
For more information on complex type mapping see Using Complex Types.
An enum type for any simple types defined using the
enumeration
facetFor more information on how enumerations are mapped see Enumerations.
A public
ObjectFactory
class that contains methods for instantiating objects from the schemaFor more information on the
ObjectFactory
class see The Object Factory.A
package-info.java
file that provides metadata about the classes in the package