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Model Groups
XML Schema contains three model group elements, which are described in the XML
Schema specification:
The <sequence> element requires the element in
the group to appear in
the specified sequence within the containing element.
The <choice> element allows one and only one of
the elements contained in
the group to be present within the containing element.
The <all>
element allows the elements in the group to
appear (or not appear) in any order in the containing element.
The XML Schema model java interface for a <sequence>, <choice> or
<all> is org.eclipse.xsd.XSDModelGroup and
can be created by calling
org.eclipse.xsd.XSDFactory.eINSTANCE.createXSDModelGroup().
An XSDModelGroup has a compositor, which is one of the following:
- org.eclipse.xsd.XSDCompositor.SEQUENCE_LITERAL
- org.eclipse.xsd.XSDCompositor.CHOICE_LITERAL
- org.eclipse.xsd.XSDCompositor.ALL_LITERAL
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