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javabean-validationargs4j

How can I validate options with args4j?

With following code,

@Option(name = "age") // min = "1"
private int age;

How can I validate age field? Say must be bigger than zero?

Solution

  • You can place Option annotation on the method of the form void methodName(T value). So you can easily do it in the following way.

    private int age;

@Option(name = "age")
void setAge(int age) {
    if (age < 1) {
        throw new CmdLineException("message");
    }
    this.age = age;
}