private Prepared parsePrepared() {
int start = lastParseIndex;
Prepared c = null;
String token = currentToken;
if (token.length() == 0) {
c = new NoOperation(session);
} else {
char first = token.charAt(0);
switch (first) {
case '?':
// read the ? as a parameter
readTerm();
// this is an 'out' parameter - set a dummy value
parameters.get(0).setValue(ValueNull.INSTANCE);
read("=");
read("CALL");
c = parseCall();
break;
case '(':
c = parseSelect();
break;
case 'a':
case 'A':
if (readIf("ALTER")) {
c = parseAlter();
} else if (readIf("ANALYZE")) {
c = parseAnalyze();
}
break;
case 'b':
case 'B':
if (readIf("BACKUP")) {
c = parseBackup();
} else if (readIf("BEGIN")) {
c = parseBegin();
}
break;
case 'c':
case 'C':
if (readIf("COMMIT")) {
c = parseCommit();
} else if (readIf("CREATE")) {
c = parseCreate();
} else if (readIf("CALL")) {
c = parseCall();
} else if (readIf("CHECKPOINT")) {
c = parseCheckpoint();
} else if (readIf("COMMENT")) {
c = parseComment();
}
break;
case 'd':
case 'D':
if (readIf("DELETE")) {
c = parseDelete();
} else if (readIf("DROP")) {
c = parseDrop();
} else if (readIf("DECLARE")) {
// support for DECLARE GLOBAL TEMPORARY TABLE...
c = parseCreate();
} else if (readIf("DEALLOCATE")) {
c = parseDeallocate();
}
break;
case 'e':
case 'E':
if (readIf("EXPLAIN")) {
c = parseExplain();
} else if (readIf("EXECUTE")) {
c = parseExecute();
}
break;
case 'f':
case 'F':
if (isToken("FROM")) {
c = parseSelect();
}
break;
case 'g':
case 'G':
if (readIf("GRANT")) {
c = parseGrantRevoke(CommandInterface.GRANT);
}
break;
case 'h':
case 'H':
if (readIf("HELP")) {
c = parseHelp();
}
break;
case 'i':
case 'I':
if (readIf("INSERT")) {
c = parseInsert();
}
break;
case 'm':
case 'M':
if (readIf("MERGE")) {
c = parseMerge();
}
break;
case 'p':
case 'P':
if (readIf("PREPARE")) {
c = parsePrepare();
}
break;
case 'r':
case 'R':
if (readIf("ROLLBACK")) {
c = parseRollback();
} else if (readIf("REVOKE")) {
c = parseGrantRevoke(CommandInterface.REVOKE);
} else if (readIf("RUNSCRIPT")) {
c = parseRunScript();
} else if (readIf("RELEASE")) {
c = parseReleaseSavepoint();
}
break;
case 's':
case 'S':
if (isToken("SELECT")) {
c = parseSelect();
} else if (readIf("SET")) {
c = parseSet();
} else if (readIf("SAVEPOINT")) {
c = parseSavepoint();
} else if (readIf("SCRIPT")) {
c = parseScript();
} else if (readIf("SHUTDOWN")) {
c = parseShutdown();
} else if (readIf("SHOW")) {
c = parseShow();
}
break;
case 't':
case 'T':
if (readIf("TRUNCATE")) {
c = parseTruncate();
}
break;
case 'u':
case 'U':
if (readIf("UPDATE")) {
c = parseUpdate();
}
break;
case 'v':
case 'V':
if (readIf("VALUES")) {
c = parseValues();
}
break;
case 'w':
case 'W':
if (readIf("WITH")) {
c = parserWith();
}
break;
default:
throw getSyntaxError();
}
if (indexedParameterList != null) {
for (int i = 0, size = indexedParameterList.size(); i < size; i++) {
if (indexedParameterList.get(i) == null) {
indexedParameterList.set(i, new Parameter(i));
}
}
parameters = indexedParameterList;
}
if (readIf("{")) {
do {
int index = (int) readLong() - 1;
if (index < 0 || index >= parameters.size()) {
throw getSyntaxError();
}
Parameter p = parameters.get(index);
if (p == null) {
throw getSyntaxError();
}
read(":");
Expression expr = readExpression();
expr = expr.optimize(session);
p.setValue(expr.getValue(session));
} while (readIf(","));
read("}");
for (Parameter p : parameters) {
p.checkSet();
}
parameters.clear();
}
}
if (c == null) {
throw getSyntaxError();
}
setSQL(c, null, start);
return c;
}