列出包含字符串的域名

Question

首先我要對耶拿的所有新手進行初始化。從來就創建了一個本體和從來就4類，過程，買方，供應商和郵政編碼Code.And從來就以下屬性：

1. 步驟hasBuyer買家
2. 步驟hasSupplier供應商
3. 供應商hasZipCode郵編
4. 買家hasZipCode郵編

我想知道it's在耶拿的最佳方法返回包含字符串「3333」的所有域。

例如：

• 步驟1具有買方1與郵政編碼333，供應商1郵政編碼333和supplier2與郵政編碼334
• 程序2有買方2與郵政編碼331，供應商2郵政編碼334和supplier2與郵政編碼335
• 過程3具有買方3與郵政編碼333，供應商1郵政編碼333和supplier3與郵政編碼335

的結果必須b E：

• 程序 - PROCEDURE1和Procedure3
• 買家 - Buyer1和買家3
• 供應商 - supplier1

NG

Answer 1

首先，你不能使用「供應商2與郵政編碼334「，然後」供應商2與郵政編碼335「，因爲它是相同的個人，並且您在兩次申請中將看到」供應商2與郵政編碼334和郵政編碼334「。

有一些變體的實現。

帶滑動耶拿API：

Model model; // your model 
Resource supplierClass = model.getResource(YOUR_NS + "Supplier"); 
Resource buyerClass = model.getResource(YOUR_NS + "Buyer"); 
Resource procClass = model.getResource(YOUR_NS + "Procedure"); 
Property zipCodeProp = model.getProperty(YOUR_NS + "zipCode"); 
Property hasBuyerProp = model.getProperty(YOUR_NS + "hasBuyer"); 
Property hasSupplierProp = model.getProperty(YOUR_NS + "hasSupplier"); 
StmtIterator iter = 
     model.listStatements(new SimpleSelector(null, zipCodeProp, "333")); 
while (iter.hasNext()) { 
    Resource subject = iter.next().getSubject(); 
    if (!subject.hasProperty(RDF.type)) 
     continue; 
    Resource subjectClass = subject.getPropertyResourceValue(RDF.type); 
    SimpleSelector sel; 
    if (subjectClass.equals(supplierClass)) 
     sel = new SimpleSelector(null, hasSupplierProp, subject); 
    else if (subjectClass.equals(buyerClass)) 
     sel = new SimpleSelector(null, hasBuyerProp, subject); 
    else 
     continue; 
    StmtIterator innerIter = model.listStatements(sel); 
    while (innerIter.hasNext()) { 
     Resource proc = innerIter.next().getSubject(); 
     if (!proc.hasProperty(RDF.type) || 
       !proc.getPropertyResourceValue(RDF.type).equals(procClass)) 
      continue; 
     // now you can retrieve linked entities from this procedure 
    } 
} 

和SPARQL查詢：

PREFIX yourns: <YOUR_NS> 
SELECT DISTINCT ?proc 
{ 
    ?proc a yourns:Procedure; 
      yourns:hasBuyer ?buyer; 
      yourns:hasSupplier ?supplier. 
    ?supplier zipCode ?supplierZip. 
    ?buyer zipCode ?buyerZip. 
    FILTER (?supplierZip = '333' || ?buyerZip = '333') 
} 

進一步使用ARQ的：

Query query = QueryFactory.create(queryString); 
QueryExecution qe = QueryExecutionFactory.create(query, model); 
ResultSet results = qe.execSelect(); 
while (results.hasNext()) { 
    QuerySolution qs = results.next(); 
Resource proc = qs.getResource("proc"); 
    // now again you can retrieve linked entities 
}