Hi folks.
First a disclaimer: I’m omitting a lot of information, because there is hardly any limit to what I
could include.
Instead, I’ll mention what seems most important, then dialog if anyone shows an interest.
The objective: convert an existing private java library from ddxq to BaseX.
I am using these libraries, all coming to me via BaseX (I think):
My intention is to use the local option … this library is already running in the server (or in Eclipse).
import net.xqj.basex.local.BaseXXQDataSource;
Here’s my connection code (actually a constructor method):
public XQTransformer (String
xqueryName)
throws Exception
{
String
queryPath = String.format(filePath,
xqueryName);
URI
queryUri =
new URI(queryPath);
FileReader
xqueryReader =
new FileReader(new
File(queryUri));
xqds =
new BaseXXQDataSource();
//xqds.setOptions("serialize=indent=yes");
//xqds.setBaseUri(queryPath);
xqconnection =
xqds.getConnection();
XQStaticContext
context =
xqconnection.getStaticContext();
context.setBindingMode(XQConstants.BINDING_MODE_IMMEDIATE);
xqconnection.setStaticContext(context);
xqpe =
xqconnection.prepareExpression(xqueryReader);
}
setBaseUri is for references from the xQuery to helper files in the same directory. Later I compensate by overriding the current user directory.
But I am throwing an Exception here:
while (!rs.isClosed()
&& rs.next()) {
java.lang.NullPointerException
at org.basex.query.QueryContext.next(QueryContext.java:353)
at org.basex.query.expr.gflwor.GFLWOR$1.next(GFLWOR.java:64)
at org.basex.query.QueryContext.next(QueryContext.java:353)
at org.basex.query.scope.MainModule$1.next(MainModule.java:101)
at net.xqj.basex.bin.h.b(Unknown Source)
at net.xqj.basex.bin.r.a(Unknown Source)
at net.xqj.basex.bin.bL.next(Unknown Source)
at net.xqj.basex.bin.bR.next(Unknown Source)
at com.emc.metlife.util.xql.XqueryTransformation.xmlFormatted(XqueryTransformation.java:89)
at com.emc.metlife.util.xql.XqueryTransformation.getTransformedData(XqueryTransformation.java:194)
at com.emc.metlife.util.xql.XqueryPooledTester.test(XqueryPooledTester.java:58)
at com.emc.metlife.util.xql.XqueryPooledTester.main(XqueryPooledTester.java:43)
The particular xquery file is working for me in the BaseX GUI.
Thanks!
Arthur Gardner | Infosys Ltd
MetLife | Clarks Summit, PA
Office 570-587-6898 | Mobile 262-442-7472