Skip to main content
Start a Conversation

Unsolved

This post is more than 5 years old

share4me

2 Posts

625

January 8th, 2009 07:00

Executing Xquery through java programming

Hi
I am using X-Hive/DB .I am trying to execute Xquery through java application.I can able to
retrieve the xml file from X-Hive/DB but when executing Xquery it throws error.The error statement is
java.lang.NoClassDefFoundError: org/antlr/runtime/RecognitionException
at xh8_1_3.yW.(xhive:49)
at xh8_1_3.ym.(xhive:62)
at xh8_1_3.ym.(xhive:45)
at xh8_1_3.vT.executeXQuery(xhive:1428)
at xh8_1_3.vT.executeXQuery(xhive:1404)

My xml file is 
"1.0" encoding="UTF-16"?>
 

  "1">
    Empire Burlesque
    Bob Dylan
    India
    venkatesh
    1000000
    1983


My java code is given below
package samples.manual;
import java.util.Iterator;
import com.xhive.XhiveDriverFactory;
import com.xhive.core.interfaces.XhiveDatabaseIf;
import com.xhive.core.interfaces.XhiveDriverIf;
import com.xhive.core.interfaces.XhiveSessionIf;
import com.xhive.dom.interfaces.XhiveLibraryIf;
import com.xhive.query.interfaces.XhiveXQueryValueIf;
public final class XQuery {
  private XQuery() {
   
  }
  public static void main(String[] args) {
    String databaseName = SampleProperties.databaseName;
    String administratorName = SampleProperties.administratorName;
    String administratorPassword = SampleProperties.administratorPassword;
 
     
    XhiveDriverIf driver = XhiveDriverFactory.getDriver("xhive://localhost:1235");
	if(driver.isInitialized()){
		System.out.println("Driver is already in connection");
	}else{
	driver.init(1024);
	}
    XhiveSessionIf session = driver.createSession();
    try {
      session.connect(administratorName, administratorPassword, databaseName);
      session.begin();
      XhiveDatabaseIf unitedNationsDb = session.getDatabase();
      XhiveLibraryIf rootLibrary = unitedNationsDb.getRoot();
      XhiveLibraryIf charterLib = DataLoader.createLibrary(unitedNationsDb, rootLibrary, "UN Charter", session);
      String theQuery = " { for $b in doc('/UN Charter/book.xml')/catalog/cd return   { $b/title } { $b/artist  }   } ";
      System.out.println("#running query:\n" + theQuery);
      Iterator result = rootLibrary.executeXQuery(theQuery);
      // Process the results
      while (result.hasNext()) {
        XhiveXQueryValueIf value = (XhiveXQueryValueIf)result.next();
        System.out.println(value.toString());
      }
      session.commit();
    } catch (Exception e) {
      System.err.println("XQuery sample failed: ");
      e.printStackTrace();
    } finally {
 
      // disconnect and remove the session
      if (session.isOpen()) {
        session.rollback();
      }
      if (session.isConnected()) {
        session.disconnect();
      }
 
      driver.close();
    }
  }
}

I have use the above xquery in X-Hive/DB and it give me the results but i want to execute through java please provide me any solution.

share4me

2 Posts

January 9th, 2009 06:00

I found out the solution .The error is due to the missing of class file at run time
in order to execute antlr-runtime-3.0.1.jar file should be mapped .

Was this post helpful?

View All

No Events found!

Top