protected SQLExpr parseInterval() {
accept(Token.INTERVAL);
if (lexer.token() == Token.LPAREN) {
lexer.nextToken();
SQLMethodInvokeExpr methodInvokeExpr = new SQLMethodInvokeExpr("INTERVAL");
if (lexer.token() != Token.RPAREN) {
exprList(methodInvokeExpr.getParameters(), methodInvokeExpr);
}
accept(Token.RPAREN);
return primaryRest(methodInvokeExpr);
} else {
SQLExpr value = expr();
if (lexer.token() != Token.IDENTIFIER) {
throw new ParserException("Syntax error");
}
String unit = lexer.stringVal();
lexer.nextToken();
MySqlIntervalExpr intervalExpr = new MySqlIntervalExpr();
intervalExpr.setValue(value);
intervalExpr.setUnit(MySqlIntervalUnit.valueOf(unit.toUpperCase()));
return intervalExpr;
}
}
@Override
public boolean visit(MySqlIntervalExpr x) {
print("INTERVAL ");
x.getValue().accept(this);
print(' ');
print(x.getUnit().name());
return false;
}