com.codename1.ui.validation

Interface Constraint

All Known Implementing Classes:

ExistInConstraint, GroupConstraint, LengthConstraint, NotConstraint, NumericConstraint, RegexConstraint

public interface Constraint

To perform validation we add a constraint to a validator, a constraint defines whether a value if valid for a given object

Method Summary

Modifier and Type	Method and Description
String	getDefaultFailMessage() Includes the error message for the constraint
boolean	isValid(Object value) Indicates if the given value is valid or not

Method Detail

isValid

boolean isValid(Object value)

Indicates if the given value is valid or not

Parameters:

value - the value for the object

Returns:

true if the value is valid and false otherwise

getDefaultFailMessage

String getDefaultFailMessage()

Includes the error message for the constraint

Returns:

the text of the error message for a constraint