Following the example in this url
https://svn.apache.org/repos/asf/jena/trunk/jena-text/src/main/java/examples/JenaTextExample1.java
and I've wrote this code:
public Boolean queryText() {
try {
TextQuery.init();
Dataset ds1 = TDBFactory.createDataset(FUSEKI_HOME);
ds1.begin(ReadWrite.READ);
EntityDefinition entDef = new EntityDefinition("uri", "text",
RDFS.label.asNode()) ;
Directory dir = new RAMDirectory();
Dataset ds = TextDatasetFactory.createLucene(ds1, dir, entDef) ;
ds1.commit();
ds1.end();
String pre = StrUtils.strjoinNL
( "PREFIX text: <http://jena.apache.org/text#>"
, "PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>") ;
String qs = StrUtils.strjoinNL
( "SELECT * "
, " { ?s text:query (rdfs:label 'pietro') ;"
, " rdfs:label ?label"
, " }") ;
ds.begin(ReadWrite.READ);
Query q = QueryFactory.create(pre+"\n"+qs) ;
QueryExecution qexec = QueryExecutionFactory.create(q , ds) ;
QueryExecUtils.executeQuery(q, qexec) ;
ds.end();
}catch (Exception e){
e.printStackTrace();
}
return null;
}
But I've this message on console:
2014-07-07 12:07:49,771 WARN [main] Log - Failed to find the text index :
tried context and as a text-enabled dataset
2014-07-07 12:07:49,776 WARN [main] Log - No text index - no text search
performed
I don't understand what is the problem
-------------------------
Claudio Pomo
+39 3201176508
Stasbranger Srl
I hope in Meraki <http://meraki.com>
