语义网简明教程SW6-OWL-JenaPPT文件格式下载.pptx

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语义网简明教程SW6-OWL-JenaPPT文件格式下载.pptx

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语义网简明教程SW6-OWL-JenaPPT文件格式下载.pptx

Modelmodel=ModelFactory.createDefaultModel（）;

6,2、创建属性,使用Model.createProperty创建属性PropertycreateProperty（StringnameSpace,StringlocalName）nameSpace：

命名空间localName：

属性局部名称/NamespacedeclarationsStringfamilyUri=http:

/family/;

StringrelationshipUri=http:

/purl.org/vocab/relationship/;

/CreatethetypesofPropertytodescriberelationshipsinthemodelPropertychildOf=model.createProperty（relationshipUri,childOf）;

PropertyparentOf=model.createProperty（relationshipUri,parentOf）;

PropertysiblingOf=model.createProperty（relationshipUri,siblingOf）;

PropertyspouseOf=model.createProperty（relationshipUri,spouseOf）;

7,3、创建资源,使用Model.createResource创建资源ResourcecreateResource（Stringuri）uri：

资源的URI/CreateresourcesrepresentingthepeopleinourmodelResourceadam=model.createResource（familyUri+adam）;

Resourcebeth=model.createResource（familyUri+beth）;

Resourcechuck=model.createResource（familyUri+chuck）;

Resourcedotty=model.createResource（familyUri+dotty）;

Resourceedward=model.createResource（familyUri+edward）;

Resourcefran=model.createResource（familyUri+fran）;

Resourcegreg=model.createResource（familyUri+greg）;

Resourceharriet=model.createResource（familyUri+harriet）;

8,4、添加陈述,使用Resource.addProperty添加关于资源的陈述到模型ResourceaddProperty（Propertyp,RDFNodeo）p:

陈述的谓词，o：

陈述的客体，本资源为主体/Addpropertiestodescribingtherelationshipsbetweenthemadam.addProperty（siblingOf,beth）;

adam.addProperty（spouseOf,dotty）;

adam.addProperty（parentOf,edward）;

adam.addProperty（parentOf,fran）;

beth.addProperty（siblingOf,adam）;

beth.addProperty（spouseOf,chuck）;

chuck.addProperty（spouseOf,beth）;

dotty.addProperty（spouseOf,adam）;

dotty.addProperty（parentOf,edward）;

dotty.addProperty（parentOf,fran）;

9,4、添加陈述（续）,也可使用Model.createStatement创建陈述StatementcreateStatement（Resources,Propertyp,RDFNodeo）Modeladd（Statementstmt）/Statementscanalsobedirectlycreated.Statementstatement1=model.createStatement（edward,childOf,adam）;

Statementstatement2=model.createStatement（edward,childOf,dotty）;

Statementstatement3=model.createStatement（edward,siblingOf,fran）;

/.thenaddedtothemodel:

model.add（statement1）;

model.add（statement2）;

model.add（statement3）;

10,4、添加陈述（续）,/ArraysofStatementscanalsobeaddedtoaModel:

Statementstatements=newStatement5;

statements0=model.createStatement（fran,childOf,adam）;

statements1=model.createStatement（fran,childOf,dotty）;

statements2=model.createStatement（fran,siblingOf,edward）;

statements3=model.createStatement（fran,spouseOf,greg）;

statements4=model.createStatement（fran,parentOf,harriet）;

model.add（statements）;

/AListofStatementscanalsobeaddedListlist=newArrayList（）;

list.add（model.createStatement（greg,spouseOf,fran）;

list.add（model.createStatement（greg,parentOf,harriet）;

list.add（model.createStatement（harriet,childOf,fran）;

list.add（model.createStatement（harriet,childOf,greg）;

model.add（list）;

11,5、查询RDF模型,Model接口提供对模型中的资源、属性、陈述等的查询listStatements（）：

ListallstatementslistStatements（Resources,Propertyp,RDFNodeo）:

Findallthestatementsmatchingapattern.listSubjects（）:

Listallresourceswhicharesubjectsofstatements.listSubjectsWithProperty（Propertyp）:

ListallsubjectswithagivenpropertylistObjects（）:

Listallobjectsinamodel.listObjectsOfProperty（Propertyp）:

Listallobjectsofagivenproperty,12,5、查询RDF模型（续）,列出陈述StmtIteratorlistStatements（）列出所有陈述结果存放在陈述迭代器中StmtIteratorlistStatements（Resources,Propertyp,RDFNodeo）查找满足给定模式的陈述s:

查找的资源，p:

查找的谓词，o:

查找的客体参数可为null，表示匹配任何值例如：

/Findtheexactstatementadamisaspouseofdottymodel.listStatements（adam,spouseOf,dotty）;

13,5、查询RDF模型（续）,例：

/FindanystatementsmadeaboutadamStmtIteratoriter=model.listStatements（adam,null,（RDFNode）null）;

/printoutthepredicate,subjectandobjectofeachstatementwhile（iter.hasNext（）,14,/getnextstatement/getthesubject/getthepredicate/gettheobject,Statementstmt=iter.nextStatement（）;