/** INTERNAL: Select one object of any concrete subclass. */
protected Object selectOneObject(ReadObjectQuery query) throws DescriptorException {
ReadObjectQuery concreteQuery = (ReadObjectQuery) query.clone();
Class javaClass = descriptor.getJavaClass();
concreteQuery.setReferenceClass(javaClass);
concreteQuery.setDescriptor(descriptor);
return query.getSession().executeQuery(concreteQuery, concreteQuery.getTranslationRow());
}
public void setup() {
if (getSession().getPlatform().isDB2()) {
throw new TestWarningException(
"This test is not supposed to work with DB2. "
+ org.eclipse.persistence.internal.helper.Helper.cr()
+ "\t\tBecause as expected, sql string contains (t0.F_NAME = NULL) when the query is executed the second time with argument null, and '=NULL' is illegal syntax on DB2."
+ org.eclipse.persistence.internal.helper.Helper.cr()
+ "\t\tHence, executing the query would result in runtime exception.");
}
query =
(ReadObjectQuery)
getSession()
.getDescriptor(
org.eclipse.persistence.testing.models.employee.domain.Employee.class)
.getQueryManager()
.getQuery("shouldPrepareQuery");
queryCopy = (ReadObjectQuery) query.clone();
ExpressionBuilder ex = new ExpressionBuilder();
queryCopy.setSelectionCriteria(ex.get("firstName").equal(ex.getParameter("firstName1")));
queryCopy.addArgument("firstName1");
vec = new Vector();
vec.add("Bob");
getSession().executeQuery(queryCopy, vec);
}