public void create(String oql) throws QueryException {
_fieldNum = 0;
_expr = null;
_spCall = null;
// Separate parser for CALL-type queries (using stored procedured)
if (oql.startsWith("CALL ")) {
createCall(oql);
return;
}
Lexer lexer = new Lexer(oql);
Parser parser = new Parser(lexer);
ParseTreeNode parseTree = parser.getParseTree();
_dbEngine = _dbImpl.getPersistenceEngine();
if (_dbEngine == null) throw new QueryException("Could not get a persistence engine");
ParseTreeWalker walker = new ParseTreeWalker(_dbEngine, parseTree, _dbImpl.getClassLoader());
_objClass = walker.getObjClass();
_clsDesc = walker.getClassDescriptor();
_expr = walker.getQueryExpression();
_paramInfo = walker.getParamInfo();
_projectionType = walker.getProjectionType();
_pathInfo = walker.getPathInfo();
// port param info types back to the format of old bind types.
// first get the maximum SQL param.
int max = 0;
for (Enumeration e = _paramInfo.elements(); e.hasMoreElements(); ) {
ParamInfo info = (ParamInfo) e.nextElement();
for (Enumeration f = info.getParamMap().elements(); f.hasMoreElements(); ) {
int paramIndex = ((Integer) f.nextElement()).intValue();
if (paramIndex > max) max = paramIndex;
}
}
// then create the types array and fill it
_bindTypes = new Class[max];
for (Enumeration e = _paramInfo.elements(); e.hasMoreElements(); ) {
ParamInfo info = (ParamInfo) e.nextElement();
for (Enumeration f = info.getParamMap().elements(); f.hasMoreElements(); ) {
int paramIndex = ((Integer) f.nextElement()).intValue();
_bindTypes[paramIndex - 1] = f.getClass();
}
}
}
