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Subject: [sca-assembly] NEW ISSUE: Abstract base type for Service and Reference
Title: Abstract base type
for Service and Reference TARGET: Assembly spec DESCRIPTION: The XML schema definitions for Service and
Reference contain an identical set of elements, and also share some
attributes. It would be useful to have Service and Reference extend from
a common base class. This would make it easier to deal with Services and References
programmatically, when processing an SCA XML file, or working with code
generated from the XML schema. PROPOSAL:
New proposed schema content below. If someone can think of
a better name for the base type than “Bindable”, please suggest. <complexType name="Bindable" abstract="true">
<sequence>
<element ref="sca:interface"
minOccurs="0" maxOccurs="1" />
<element name="operation" type="sca:Operation" minOccurs="0" maxOccurs="unbounded" />
<choice minOccurs="0" maxOccurs="unbounded">
<element ref="sca:binding" /> <any namespace="##other" processContents="lax" minOccurs="0" maxOccurs="unbounded" /> </choice> <element ref="sca:callback" minOccurs="0" maxOccurs="1" /> <any namespace="##other" processContents="lax" minOccurs="0" maxOccurs="unbounded" /> </sequence> <attribute name="name" type="NCName" use="required" /> <attribute name="requires" type="sca:listOfQNames" use="optional" />
<attribute
name="policySets"
type="sca:listOfQNames"
use="optional"/>
<anyAttribute
namespace="##any" processContents="lax" /> </complexType>
<complexType name="Service"> <complexContent>
<extension
base="sca:Bindable"> <attribute name="promote" type="anyURI" use="required" /> </extension>
</complexContent> </complexType> <complexType name="Reference">
<complexContent>
<extension
base="sca:Bindable">
<attribute name="target" type="sca:listOfAnyURIs" use="optional"/>
<attribute name="wiredByImpl" type="boolean" use="optional" default="false"/>
<attribute name="multiplicity" type="sca:Multiplicity" use="optional" default="1..1" />
<attribute name="promote" type="sca:listOfAnyURIs" use="required" />
</extension>
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