public static String constructQualifiedColumnString(
Set<String> vars, TupleSetMetadata meta, String extraQualifier) {
String ret = "";
int count = 0;
for (String s : vars) {
++count;
ret +=
(extraQualifier.isEmpty() ? "" : (extraQualifier + "::"))
+ meta.getQualifiedVariable(s)
+ ",";
}
ret = Util.clearTrailingCommas(ret) + "";
if (count > 1) {
ret = "(" + ret + ")";
}
return ret;
}
public static String makeQualifiedVariableString(
Set<String> vars, Collection<TupleSetMetadata> meta, boolean increaseQualification)
throws QueryEvaluationException {
String ret = "";
for (String v : vars) {
boolean foundone = false;
for (TupleSetMetadata m : meta) {
String cc = m.getQualifiedVariable(v);
if (cc != null) {
ret += (increaseQualification ? (m.name + "::") : "") + cc + " AS " + v + ", ";
foundone = true;
break;
}
}
if (!foundone) throw new QueryEvaluationException("No qualifier for variable " + v);
}
return Util.clearTrailingCommas(ret);
}