public boolean visit(SQLVariantRefExpr x) {
print(x.getName());
String collate = (String) x.getAttribute("COLLATE");
if (collate != null) {
print(" COLLATE ");
print(collate);
}
return false;
}
public static boolean visit(SQLEvalVisitor visitor, SQLVariantRefExpr x) {
if (!"?".equals(x.getName())) {
return false;
}
Map<String, Object> attributes = x.getAttributes();
int varIndex = x.getIndex();
if (varIndex != -1 && visitor.getParameters().size() > varIndex) {
boolean containsValue = attributes.containsKey(EVAL_VALUE);
if (!containsValue) {
Object value = visitor.getParameters().get(varIndex);
attributes.put(EVAL_VALUE, value);
}
}
return false;
}
public SQLExpr primary() {
final Token tok = lexer.token();
if (identifierEquals("outfile")) {
lexer.nextToken();
SQLExpr file = primary();
SQLExpr expr = new MySqlOutFileExpr(file);
return primaryRest(expr);
}
switch (tok) {
case TRUE:
lexer.nextToken();
return primaryRest(new MySqlBooleanExpr(true));
case FALSE:
lexer.nextToken();
return primaryRest(new MySqlBooleanExpr(false));
case LITERAL_ALIAS:
String aliasValue = lexer.stringVal();
lexer.nextToken();
return primaryRest(new SQLCharExpr(aliasValue));
case VARIANT:
SQLVariantRefExpr varRefExpr = new SQLVariantRefExpr(lexer.stringVal());
lexer.nextToken();
if (varRefExpr.getName().equalsIgnoreCase("@@global")) {
accept(Token.DOT);
varRefExpr = new SQLVariantRefExpr(lexer.stringVal(), true);
lexer.nextToken();
} else if (varRefExpr.getName().equals("@") && lexer.token() == Token.LITERAL_CHARS) {
varRefExpr.setName("@'" + lexer.stringVal() + "'");
lexer.nextToken();
} else if (varRefExpr.getName().equals("@@") && lexer.token() == Token.LITERAL_CHARS) {
varRefExpr.setName("@@'" + lexer.stringVal() + "'");
lexer.nextToken();
}
return primaryRest(varRefExpr);
case VALUES:
lexer.nextToken();
if (lexer.token() != Token.LPAREN) {
throw new ParserException("syntax error, illegal values clause");
}
return this.methodRest(new SQLIdentifierExpr("VALUES"), true);
case BINARY:
lexer.nextToken();
if (lexer.token() == Token.COMMA
|| lexer.token() == Token.SEMI
|| lexer.token() == Token.EOF) {
return new SQLIdentifierExpr("BINARY");
} else {
SQLUnaryExpr binaryExpr = new SQLUnaryExpr(SQLUnaryOperator.BINARY, expr());
return primaryRest(binaryExpr);
}
case GROUP:
lexer.nextToken();
return primaryRest(new SQLIdentifierExpr(lexer.stringVal()));
default:
return super.primary();
}
}