litvinovg/vitro
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

NIHVIVO-1849 added check for empty result set

Browse source
This commit is contained in:
bjl23 2011-01-21 16:19:54 +00:00
parent 781f3d042f
commit aeff100428
1 changed files with 17 additions and 11 deletions
Download patch file Download diff file Expand all files Collapse all files

28
webapp/src/edu/cornell/mannlib/vitro/webapp/dao/jena/IndividualSDB.java
View file

@ -939,17 +939,23 @@ public class IndividualSDB extends IndividualImpl implements Individual {
propertyURI + "> ?object} \n" +
WebappDaoFactorySDB.getFilterBlock(graphVars, datasetMode) +
"}";
ResultSet results = QueryExecutionFactory.create(
QueryFactory.create(valueOfProperty), dataset).execSelect();
QuerySolution result = results.next();
RDFNode value = result.get("object");
if (value != null && value.canAs(OntResource.class)) {
return new IndividualSDB(
((OntResource) value.as(OntResource.class)).getURI(),
dwf, datasetMode, webappDaoFactory);
} else {
return null;
}
QueryExecution qe = QueryExecutionFactory.create(
QueryFactory.create(valueOfProperty), dataset);
try {
ResultSet results = qe.execSelect();
if (results.hasNext()) {
QuerySolution result = results.next();
RDFNode value = result.get("object");
if (value != null && value.canAs(OntResource.class)) {
return new IndividualSDB(
((OntResource) value.as(OntResource.class)).getURI(),
dwf, datasetMode, webappDaoFactory);
}
}
return null;
} finally {
qe.close();
}
} finally {
dataset.getLock().leaveCriticalSection();
w.close();