T
- the type of value that this validator can validatepublic abstract class Validator<T>
extends java.lang.Object
Validator
is responsible for validating the value from the target of
a Binding
.Modifier and Type | Class | Description |
---|---|---|
class |
Validator.Result |
An instance of
Result is returned from a Validator's
validate method to indicate an invalid value. |
Constructor | Description |
---|---|
Validator() |
Modifier and Type | Method | Description |
---|---|---|
abstract Validator.Result |
validate(T value) |
Validates a value; returns
null for a valid value, and a
Result object describing the problem for an invalid value. |
public abstract Validator.Result validate(T value)
null
for a valid value, and a
Result
object describing the problem for an invalid value.value
- the value to validate, may be null
null
for a valid value or a Result
describing the problem for an invalid value