public interface Binding
Known subtypesNotifiableBinding
Binders.bind. Lets the caller refresh the components
from the model (e.g. after the model was mutated outside the form),
re-read the model from the components (e.g. before a save), tear down
the listeners installed for two-way bindings, or reach into the
Validator the binder configured from the model’s @Required /
@Length / @Regex / @Email / @Url / @Numeric / @ExistIn /
@Validate annotations.Methods
public abstract void refresh() | Pushes the current model values into every bound component. |
public abstract void commit() | Pulls current component values back into the model. |
public abstract void disconnect() | Removes every listener the binder added so the form can be garbage- collected without keeping the model alive. |
public abstract Validator getValidator() | The Validator populated from the model’s validation annotations. |
Method details
refresh
public abstract void refresh()commit
public abstract void commit()disconnect
public abstract void disconnect()getValidator
public abstract Validator getValidator()The Validator populated from the model’s validation annotations.
Each @Bind field that carries one or more of @Required,
@Length, @Regex, @Email, @Url, @Numeric, @ExistIn,
@Validate contributes a com.codename1.ui.validation.Constraint
against the matching component. Multiple annotations on the same
field are combined under a GroupConstraint (first failure wins),
matching the behaviour of Validator.addConstraint(Component, Constraint...).
The returned validator is never null – call addSubmitButtons to
gate a submit Button until every constraint passes, set
setValidateOnEveryKey for live feedback, or call isValid() to
gate an action programmatically. When the model has no validation
annotations the validator is empty and isValid() returns true.