Page tree
Skip to end of metadata
Go to start of metadata

Syntax
set aBlob = anObject.classToXML()
set aBlob = anObject.classToXML(options)
Semantics

The operation takes any object (anObject) and tries to map it to an XML document. The document structure is given by the class definition of anObject. If this is not possible an error is raised (e.g. XML parser errors, invalid mappings, etc.).

By default the following mapping rules apply:

  • Class attributes are mapped to XML attributes.
  • Association ends are mapped to XML elements.

These default rules can be overridden by using <<XMLElement>>, <<XMLAttribute>> and <<XMLCharacters>> stereotypes on UML class attributes and UML association ends.
More about these mapping rules, stereotypes and tagged values (e.g. for number and date & time formatting) can be found at XML - UML Class Mapping.

The WSDL/XSD importer will not set these XML stereotypes, hence classToXml() without options will always render the root element after the variable name. Bridge 7 This behavior can be overruled by setting Class To XML Default Root Name on the composite (see Frontend Components for more information).

A conversion with operation classToXML() always returns an object of type Blob. To display this data as a String you need to transcode it first (see chapter transcodeToString() Operation).

SubstitutablesanObjectTarget object can be any complex object. However, simple types and arrays are not supported, since they do not map naturally to a well formed XML document.
options

This optional parameter is an object of type XMLComposeOptions.

Its attributes are:

AttributeTypeDescriptionExample
prologArray of StringThe string values are inserted right before the root element of the generated document. This mechanism can be used to insert processing instructions (e.g. DTD and Schema references), comments, entities or any other prolog you may think of. However, be aware that using prolog arrays makes it easy to generate non-well-formed documents.
timezoneStringTime zone string as specified in the time zone appendix. The timezone is used to print dateTime expressions. If no timezone is given, UTC is used.
If " local" is used, the date/time is printed relative to the local timezone of the server, e.g. 2012-10-01T12:36:47.0+02:00 (the timezone of the server is UTC+02:00).

"Australia/Melbourne", "CET", "Etc/GMT+10"

dateFormatStringStringA format string to be used when printing DateTime values as xs:date (e.g. %F to print a date without timezone).
The allowed formats can be found in time zone appendix. If nothing is defined, the XSD standard is used.
%F
encodingStringEncoding of the target xml. Default encoding is UTF-8.
For a list of possible encodings see Charset Definitions.
"UTF-8"
rootNameString

Bridge 7 Name of the generated XML root element. Use this tagged value to override the default behavior specified on the composite (see Frontend Components).

 Bridge 6...

Bridges of version 6 do not support this tagged value. The generated root element will be named after the variable name of the target object of the operation (anObject). So, to influence the name of the root element, assign the desired name to the target object.

TXTRAW01
rootNamespaceStringName of the namespace of the generated XML root element.

Examples
set xmlBlob = myAddress.classToXML();

Example File (Builder project E2E Action Language/XML):

<your example path>\E2E Action Language\XML\uml\xmlSimpleConversions.xml
<your example path>\E2E Action Language\XML\uml\xmlComplexConversions.xml

The following action script serializes an object of type Address provided, that you have defined an input object node named myAddress of type Address in the activity diagram.

set xmlBlob = myAddress.classToXML();

The sample XML document below illustrates the mapping executed by classToXML(). The object myAddress of type Address (see class diagram) is mapped to an XML document as depicted in the following XML document:

 
 <myAddress id="myAddressID"> 
   <street>Lautengartenstr. 12</street> 
   <city>Basel</city> 
</myAddress>

Note, that the XML element myAddress is of type Address. This type has the UML attribute id, which corresponds to the XML attribute id. Additionally, the XML elements street and city are mapped to the association ends city respectively street. Both are having the type String.