/**
* Foreign function. Dynamically executes an AMOSQL statement. Declare as create function
* jeval(charstring)->object as foreign "JAVA:EvalTest/javaEval";
*/
public void javaEval(CallContext cxt, Tuple tpl) throws AmosException {
Scan tmpScan;
Tuple t;
// Pick up the argument
String query = tpl.getStringElem(0);
try {
System.out.println("Executing " + query);
tmpScan = cxt.connection().execute(query);
while (!tmpScan.eos()) {
t = tmpScan.getRow();
tpl.setElem(1, t.getOidElem(0));
cxt.emit(tpl);
tmpScan.nextRow();
}
} catch (AmosException e) {
throw (e);
}
}
/**
* Foreign function. Thows an Amos II error Declare as create function jerror(charstring)->object
* as foreign "JAVA:EvalTest/jerror";
*/
public void jerror(CallContext cxt, Tuple tpl) throws AmosException {
String msg = tpl.getStringElem(0);
throw (new AmosException(msg));
}