sca-core.xsd元素及类型分解

原创 于 2007-03-23 12:36:00 发布 · 2.5k 阅读 · 1 ·
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文章标签：

#binding #reference #callback #interface #extension #service

本文详细解析了 SCA (Service Component Architecture) 中的核心组件和接口定义，包括 componentType、composite、Service、Reference 等关键概念及其 XML 表达形式。适用于希望深入了解 SCA 架构及其实现细节的技术人员。

xml版本和字符集

<?xml version="1.0" encoding="UTF-8"?>
 
命名空间
<schema xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.osoa.org/xmlns/sca/1.0" xmlns:sca="http://www.osoa.org/xmlns/sca/1.0" elementFormDefault="qualified">

componentType & ComponentType
<element name="componentType" type="sca:ComponentType"/>
<complexType name="ComponentType">
        <sequence>
            <element ref="sca:implementation" minOccurs="0"/>
            <choice minOccurs="0" maxOccurs="unbounded">
                <element name="service" type="sca:ComponentService"/>
                <element name="reference" type="sca:ComponentReference"/>
                <element name="property" type="sca:Property"/>
            </choice>
            <any namespace="##other" processContents="lax" minOccurs="0" maxOccurs="unbounded"/>
        </sequence>
        <attribute name="constrainingType" type="QName" use="optional"/>
        <anyAttribute namespace="##any" processContents="lax"/>
</complexType>

composite & Composite
<element name="composite" type="sca:Composite"/>
<complexType name="Composite">
        <sequence>
            <element name="include" type="anyURI" minOccurs="0" maxOccurs="unbounded"/>
            <choice minOccurs="0" maxOccurs="unbounded">
                <element name="service" type="sca:Service"/>
                <element name="property" type="sca:Property"/>
                <element name="component" type="sca:Component"/>
                <element name="reference" type="sca:Reference"/>
                <element name="wire" type="sca:Wire"/>
            </choice>
            <any namespace="##other" processContents="lax" minOccurs="0" maxOccurs="unbounded"/>
        </sequence>
        <attribute name="name" type="NCName" use="required"/>
        <attribute name="targetNamespace" type="anyURI" use="required"/>
        <attribute name="local" type="boolean" use="optional" default="false"/>
        <attribute name="autowire" type="boolean" use="optional" default="false"/>
        <attribute name="constrainingType" type="QName" use="optional"/>
        <attribute name="requires" type="sca:listOfQNames" use="optional"/>
        <attribute name="policySets" type="sca:listOfQNames" use="optional"/>
        <anyAttribute namespace="##any" processContents="lax"/>
</complexType>

Service
<complexType name="Service">
        <sequence>
            <element ref="sca:interface" minOccurs="0"/>
            <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"/>
            <any namespace="##other" processContents="lax" minOccurs="0" maxOccurs="unbounded"/>
        </sequence>
        <attribute name="name" type="NCName" use="required"/>
        <attribute name="promote" type="anyURI" use="required"/>
        <attribute name="requires" type="sca:listOfQNames" use="optional"/>
        <attribute name="policySets" type="sca:listOfQNames" use="optional"/>
        <anyAttribute namespace="##any" processContents="lax"/>
</complexType>

interface
<element name="interface" type="sca:Interface" abstract="true"/>
<complexType name="Interface" abstract="true"/>

Reference
<complexType name="Reference">
    <sequence>
        <element ref="sca:interface" minOccurs="0"/>
        <element name="operation" type="sca:Operation" minOccurs="0" maxOccurs="unbounded"/>
        <choice minOccurs="0" maxOccurs="unbounded">
            <element ref="sca:binding"/>
            <any namespace="##other" processContents="lax"/>
        </choice>
        <element ref="sca:callback" minOccurs="0"/>
        <any namespace="##other" processContents="lax" minOccurs="0" maxOccurs="unbounded"/>
    </sequence>
    <attribute name="name" type="NCName" use="required"/>
    <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"/>
    <attribute name="requires" type="sca:listOfQNames" use="optional"/>
    <attribute name="policySets" type="sca:listOfQNames" use="optional"/>
    <anyAttribute namespace="##any" processContents="lax"/>
</complexType>

SCAPropertyBase & Property & PropertyValue
<complexType name="SCAPropertyBase" mixed="true">
    <sequence>
        <any namespace="##any" processContents="lax" minOccurs="0"/><!-- NOT an extension point; This xsd:any exists to accept the element-based or complex type property i.e. no element-based extension point under "sca:property" -->
    </sequence><!-- mixed="true" to handle simple type -->
</complexType>

<!-- complex type for sca:property declaration -->
<complexType name="Property" mixed="true">
    <complexContent mixed="true">
        <extension base="sca:SCAPropertyBase">
            <attribute name="name" type="NCName" use="required"/>
            <attribute name="type" type="QName" use="optional"/>
            <attribute name="element" type="QName" use="optional"/>
            <attribute name="many" type="boolean" use="optional" default="false"/>
            <attribute name="mustSupply" type="boolean" use="optional" default="false"/>
            <anyAttribute namespace="##any" processContents="lax"/>
        </extension>
        <!-- extension defines the place to hold default value -->
        <!-- an extension point ; attribute-based only -->
    </complexContent>
</complexType>
<complexType name="PropertyValue" mixed="true">
    <complexContent mixed="true">
        <extension base="sca:SCAPropertyBase">
            <attribute name="name" type="NCName" use="required"/>
            <attribute name="type" type="QName" use="optional"/>
            <attribute name="element" type="QName" use="optional"/>
            <attribute name="many" type="boolean" use="optional" default="false"/>
            <attribute name="source" type="string" use="optional"/>
            <attribute name="file" type="anyURI" use="optional"/>
            <anyAttribute namespace="##any" processContents="lax"/>
        </extension>
        <!-- an extension point ; attribute-based only -->
    </complexContent>
</complexType>

binding & Binding
<element name="binding" type="sca:Binding" abstract="true"/>
<complexType name="Binding" abstract="true">
    <sequence>
        <element name="operation" type="sca:Operation" minOccurs="0" maxOccurs="unbounded"/>
    </sequence>
    <attribute name="uri" type="anyURI" use="optional"/>
    <attribute name="name" type="NCName" use="optional"/>
    <attribute name="requires" type="sca:listOfQNames" use="optional"/>
    <attribute name="policySets" type="sca:listOfQNames" use="optional"/>
</complexType>

bindingType & BindingType
<element name="bindingType" type="sca:BindingType"/>
<complexType name="BindingType">
    <sequence minOccurs="0" maxOccurs="unbounded">
        <any namespace="##other" processContents="lax"/>
    </sequence>
    <attribute name="type" type="QName" use="required"/>
    <attribute name="alwaysProvides" type="sca:listOfQNames" use="optional"/>
    <attribute name="mayProvide" type="sca:listOfQNames" use="optional"/>
    <anyAttribute namespace="##any" processContents="lax"/>
</complexType>

callback & Callback
<element name="callback" type="sca:Callback"/>
<complexType name="Callback">
    <choice minOccurs="0" maxOccurs="unbounded">
        <element ref="sca:binding"/>
        <any namespace="##other" processContents="lax"/>
    </choice>
    <attribute name="requires" type="sca:listOfQNames" use="optional"/>
    <attribute name="policySets" type="sca:listOfQNames" use="optional"/>
    <anyAttribute namespace="##any" processContents="lax"/>
</complexType>

Component
<complexType name="Component">
    <sequence>
        <element ref="sca:implementation" minOccurs="0"/>
        <choice minOccurs="0" maxOccurs="unbounded">
            <element name="service" type="sca:ComponentService"/>
            <element name="reference" type="sca:ComponentReference"/>
            <element name="property" type="sca:PropertyValue"/>
        </choice>
        <any namespace="##other" processContents="lax" minOccurs="0" maxOccurs="unbounded"/>
    </sequence>
    <attribute name="name" type="NCName" use="required"/>
    <attribute name="autowire" type="boolean" use="optional" default="false"/>
    <attribute name="constrainingType" type="QName" use="optional"/>
    <attribute name="requires" type="sca:listOfQNames" use="optional"/>
    <attribute name="policySets" type="sca:listOfQNames" use="optional"/>
    <anyAttribute namespace="##any" processContents="lax"/>
</complexType>

ComponentService
<complexType name="ComponentService">
    <complexContent>
        <restriction base="sca:Service">
            <sequence>
                <element ref="sca:interface" minOccurs="0"/>
                <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"/>
                <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"/>
        </restriction>
    </complexContent>
</complexType>

ComponentReference
<complexType name="ComponentReference">
    <complexContent>
        <restriction base="sca:Reference">
            <sequence>
                <element ref="sca:interface" minOccurs="0"/>
                <element name="operation" type="sca:Operation" minOccurs="0" maxOccurs="unbounded"/>
                <choice minOccurs="0" maxOccurs="unbounded">
                    <element ref="sca:binding"/>
                    <any namespace="##other" processContents="lax"/>
                </choice>
                <element ref="sca:callback" minOccurs="0"/>
                <any namespace="##other" processContents="lax" minOccurs="0" maxOccurs="unbounded"/>
            </sequence>
            <attribute name="name" type="NCName" use="required"/>
            <attribute name="autowire" type="boolean" use="optional" default="false"/>
            <attribute name="wiredByImpl" type="boolean" use="optional" default="false"/>
            <attribute name="target" type="sca:listOfAnyURIs" use="optional"/>
            <attribute name="multiplicity" type="sca:Multiplicity" use="optional" default="1..1"/>
            <attribute name="requires" type="sca:listOfQNames" use="optional"/>
            <attribute name="policySets" type="sca:listOfQNames" use="optional"/>
            <anyAttribute namespace="##any" processContents="lax"/>
        </restriction>
    </complexContent>
</complexType>

implementation & Implementation
<element name="implementation" type="sca:Implementation" abstract="true"/>
<complexType name="Implementation" abstract="true">
    <attribute name="requires" type="sca:listOfQNames" use="optional"/>
    <attribute name="policySets" type="sca:listOfQNames" use="optional"/>
</complexType>

implementationType & ImplementationType
<element name="implementationType" type="sca:ImplementationType"/>
<complexType name="ImplementationType">
    <sequence minOccurs="0" maxOccurs="unbounded">
        <any namespace="##other" processContents="lax"/>
    </sequence>
    <attribute name="type" type="QName" use="required"/>
    <attribute name="alwaysProvides" type="sca:listOfQNames" use="optional"/>
    <attribute name="mayProvide" type="sca:listOfQNames" use="optional"/>
    <anyAttribute namespace="##any" processContents="lax"/>
</complexType>

Wire
<complexType name="Wire">
    <sequence>
        <any namespace="##other" processContents="lax" minOccurs="0" maxOccurs="unbounded"/>
    </sequence>
    <attribute name="source" type="anyURI" use="required"/>
    <attribute name="target" type="anyURI" use="required"/>
    <anyAttribute namespace="##any" processContents="lax"/>
</complexType>

include & Include
<element name="include" type="sca:Include"/>
<complexType name="Include">
    <attribute name="name" type="QName"/>
    <anyAttribute namespace="##any" processContents="lax"/>
</complexType>

Operation
<complexType name="Operation">
    <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>

constrainingType & ConstrainingType
<element name="constrainingType" type="sca:ConstrainingType"/>
<complexType name="ConstrainingType">
    <sequence>
        <choice minOccurs="0" maxOccurs="unbounded">
            <element name="service" type="sca:ComponentService"/>
            <element name="reference" type="sca:ComponentReference"/>
            <element name="property" type="sca:Property"/>
        </choice>
        <any namespace="##other" processContents="lax" minOccurs="0" maxOccurs="unbounded"/>
    </sequence>
    <attribute name="name" type="NCName" use="required"/>
    <attribute name="targetNamespace" type="anyURI"/>
    <attribute name="requires" type="sca:listOfQNames" use="optional"/>
    <anyAttribute namespace="##any" processContents="lax"/>
</complexType>

其他简单类型和全局属性
<simpleType name="Multiplicity">
    <restriction base="string">
        <enumeration value="0..1"/>
        <enumeration value="1..1"/>
        <enumeration value="0..n"/>
        <enumeration value="1..n"/>
    </restriction>
</simpleType>

<simpleType name="OverrideOptions">
    <restriction base="string">
        <enumeration value="no"/>
        <enumeration value="may"/>
        <enumeration value="must"/>
    </restriction>
</simpleType>


<!-- Global attribute definition for @requires to permit use of intents within WSDL documents -->
<attribute name="requires" type="sca:listOfQNames"/>
<!-- Global attribute defintion for @endsConversation to mark operations as ending a conversation -->
<attribute name="endsConversation" type="boolean" default="false"/>


<simpleType name="listOfQNames">
    <list itemType="QName"/>
</simpleType>


<simpleType name="listOfAnyURIs">
    <list itemType="anyURI"/>
</simpleType>
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