String to Integer --- Integer.parseInt(row1.myString)
String to Date -- TalendDate.parseDate("dd-MM-yyyy",row1.myString)
String to BigDecimal -- new BigDecimal(row1.myString)
String to Float -- Float.parseFloat(row1.myString)
String to Long -- Long.parseLong(row1.myString)
Integer to String -- variable+"" or variable.toString()
Date to String -- TalendDate.formatDate("yy-MM-dd", row1.myDate)
BigDecimal to String -- row1.myBigDecimal.toString()
String->Timestamp and String->Date: String->Date
TalendDate.parseDate(pattern, stringDate)