org.tentackle.swing.bind

Class AbstractFormBinding

java.lang.Object

org.tentackle.bind.AbstractBinding

org.tentackle.swing.bind.AbstractFormBinding

All Implemented Interfaces:

Binding

Direct Known Subclasses:

DefaultFormComponentBinding, DefaultFormTableBinding

public abstract class AbstractFormBinding
extends AbstractBinding

Base class for Swing bindings.

Author:

harald

Constructor Summary

Constructors

Constructor and Description
AbstractFormBinding(Binder binder, BindingMember[] parents, BindingMember member) Creates a binding.

Method Summary

Modifier and Type	Method and Description
protected void	verifyType() Verifies that the type of the bean matches the type of the bound member.

Methods inherited from class org.tentackle.bind.AbstractBinding

addToModelListener, addToViewListener, addValidationListener, addValidator, createBindingEvent, createValidationContext, createValidationEvent, determineValidators, fireToModel, fireToView, fireValidated, getBinder, getBoundRootObject, getMember, getModelValue, getModelValue, getParentObject, getParents, getToModelListeners, getToViewListeners, getValidationListeners, getValidators, getViewType, isValidationRequired, removeToModelListener, removeToViewListener, removeValidationListener, removeValidator, setModelValue, setModelValue, setViewValue, toString, updateView, updateView, validate, viewComponentToString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.tentackle.bind.Binding

getViewValue, isChangeable, isMandatory, setChangeable, setMandatory

Constructor Detail

AbstractFormBinding

public AbstractFormBinding(Binder binder,
                           BindingMember[] parents,
                           BindingMember member)

Creates a binding.

Parameters:

binder - the binder managing this binding

parents - the members building the declaration chain to this member, null if this binding's member is in container

member - the member field to bind

Method Detail

verifyType

protected void verifyType()

Verifies that the type of the bean matches the type of the bound member.

The verification only detects obvious type mismatches.

For example, if the member type is a Double and the component's type is an Integer, there is no way to cast in either direction.

However, if a generic component deals with a supertype (let's say a PDO), the member type may be more specific, for example a Customer. In such cases, we cannot tell whether the component really returns a Customer. All we know is that it accepts a Customer for display but returns some PDO to the member.

As a consequence, the verification succeeds if the member type is assignable to the component's type or vice versa.

Throws:

BindingException - if verification fails