public SqlRexConvertlet get(SqlCall call) {
SqlRexConvertlet convertlet;
final SqlOperator op = call.getOperator();
// Is there a convertlet for this operator
// (e.g. SqlStdOperatorTable.plusOperator)?
convertlet = (SqlRexConvertlet) map.get(op);
if (convertlet != null) {
return convertlet;
}
// Is there a convertlet for this class of operator
// (e.g. SqlBinaryOperator)?
Class<? extends Object> clazz = op.getClass();
while (clazz != null) {
convertlet = (SqlRexConvertlet) map.get(clazz);
if (convertlet != null) {
return convertlet;
}
clazz = clazz.getSuperclass();
}
// Is there a convertlet for this class of expression
// (e.g. SqlCall)?
clazz = call.getClass();
while (clazz != null) {
convertlet = (SqlRexConvertlet) map.get(clazz);
if (convertlet != null) {
return convertlet;
}
clazz = clazz.getSuperclass();
}
return null;
}
public List<SqlMoniker> getAllSchemaObjectNames(List<String> names) {
List<SqlMoniker> result;
switch (names.size()) {
case 0:
// looking for schema names
result = new ArrayList<SqlMoniker>();
for (MockSchema schema : schemas.values()) {
result.add(new SqlMonikerImpl(schema.name, SqlMonikerType.Schema));
}
return result;
case 1:
// looking for table names in the given schema
MockSchema schema = schemas.get(names.get(0));
if (schema == null) {
return Collections.emptyList();
}
result = new ArrayList<SqlMoniker>();
for (String tableName : schema.tableNames) {
result.add(new SqlMonikerImpl(tableName, SqlMonikerType.Table));
}
return result;
default:
return Collections.emptyList();
}
}