how abstract components are created when reading a schema – an animation in 9 slides --...

How abstract components are created when reading a schema – an animation in 9 slides -- complexType

July 26, 2002 5:00pm

org.eclipse.xsdXML Schema Infoset Model

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© 2002 by IBM Corporation

Parse of a complexType definition and construction of the abstract schema components.

<xs:complexType name="ct02"> <xs:sequence> <xs:element ref="refed"/> <xs:sequence minOccurs="0" maxOccurs="3"> <xs:element name="e1" type="xs:string"/> <xs:element name="e2" type="xs:string"/> </xs:sequence> </xs:sequence> </xs:complexType>

And elsewhere there is a global element declaration with the name “refed”

Now let’s follow how the abstract schema componentsare built, by getting “blank” objects from XSDFactory,

We’ll follow this example:

setting their properties, and linking them to each other…

Parse of <xs:complexType name=“ct02”>

XSDComplexTypeDefinition

name: targetNamespace: baseType:

XS

DF

actory

ct02

content:

Parse of <xs:sequence>



XS

DF

actory

ct02

XSDParticle

term:

minOccurs:

maxOccurs:content:

XSDModelGroup

compositor:

particles: list

XSDCompositor

compositor: XSDCompositor.SEQUENCE

Parse of <xs:element ref=“refed”/> 1



XS

DF

actory

ct02

XSDParticle

term:

minOccurs:

maxOccurs:content:

XSDModelGroup

compositor:

particles: list

XSDCompositor


refedAsktheschemaobjectwhere theElementDeclarationnamed refed is

XSDSchema

contents: list

Parse of <xs:element ref=“refed”/> 2



XS

DF

actory

ct02

XSDParticle

term:

minOccurs:

maxOccurs:content:

XSDModelGroup

compositor:

particles: list

XSDCompositor


XSDParticle

term:

content:

minOccurs:

maxOccurs:

XSDElementDeclaration

resolvedElementDeclaration:

isElementDeclarationReference: true

refed

Parse of <xs:sequence minOccurs=“0” maxOccurs=“3”/>



XS

DF

actory

ct02

XSDParticle

term:

minOccurs:

maxOccurs:content:

XSDModelGroup

compositor:

particles: list

XSDCompositor


XSDParticleterm:

content:

minOccurs:

maxOccurs:

XSDElementDeclarationresolvedElementDeclaration:


XSDParticle

term:

minOccurs:

maxOccurs:

XSDModelGroup

compositor:

particles: list

0

3

refed

Parse of <xs:element name=“e1” type=“xs:string”/>



XS

DF

actory

ct02

XSDParticle

term:

minOccurs:

maxOccurs:content:

XSDModelGroup

compositor:

particles: list

XSDCompositor


XSDParticleterm:

content:

minOccurs:

maxOccurs:



XSDParticle

term:

minOccurs:

maxOccurs:

XSDModelGroup

compositor:

particles: list

03

XSDParticle

term:

minOccurs:

maxOccurs:


name:

targetNamespace:

typeDefinition:

isSetAnonymousTypeDefinition: false

e1

XSDSimpleType

name: string targetNamespace: http://www.w3.org/2001/XMLSchema

refed

Parse of <xs:element name=“e2” type=“xs:string”/>



XS

DF

actory

ct02

XSDParticle

term:

minOccurs:

maxOccurs:content:

XSDModelGroup

compositor:

particles: list

XSDCompositor


XSDParticleterm:

content:

minOccurs:

maxOccurs:



XSDParticle

term:

minOccurs:

maxOccurs:

XSDModelGroup

compositor:

particles: list

03

XSDParticle

term:

minOccurs:

maxOccurs:


name:

targetNamespace:

typeDefinition:


e1

XSDParticle

term: minOccurs: maxOccurs:


name:

targetNamespace:

typeDefinition:


XSDSimpleType


e2

refed

Parse of </xs:complexType>



ct02

XSDParticle

term:

minOccurs:

maxOccurs:content:

XSDModelGroup

compositor:

particles: list

XSDCompositor


XSDParticleterm:

Content:

minOccurs:

maxOccurs:



XSDParticle

term:

minOccurs:

maxOccurs:

XSDModelGroup

compositor:

particles: list

03

XSDParticle

term:

minOccurs:

maxOccurs:


name:

targetNamespace:

typeDefinition:


e1

XSDParticle

term: minOccurs: maxOccurs:


name:

targetNamespace:

typeDefinition:


XSDSimpleType


e2

XSDSchema

contents: list

refed

now including ct02

how abstract components are created when reading a schema – an animation in 9 slides --...

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