org.springframework.binding.form.support
Class DefaultFormModel

java.lang.Object
  org.springframework.binding.value.support.AbstractPropertyChangePublisher
      org.springframework.binding.form.support.AbstractFormModel
          org.springframework.binding.form.support.DefaultFormModel

All Implemented Interfaces:

ConfigurableFormModel, FormModel, HierarchicalFormModel, ValidatingFormModel, PropertyChangePublisher

public class DefaultFormModel
extends AbstractFormModel
implements ValidatingFormModel

Default form model implementation. Is configurable, hierarchical and validating.

If you need this form model to use validation rules that are specific to a given context (such as a specific form), then you will need to call setValidator(Validator) with a validator configured with the required context id. Like this: RulesValidator validator = myValidatingFormModel.getValidator(); validator.setRulesContextId( "mySpecialFormId" ); Along with this you will need to register your rules using the context id. See DefaultRulesSource.addRules(String, org.springframework.rules.Rules).

Author:

Keith Donald, Oliver Hutchison

Nested Class Summary

protected class

DefaultFormModel.ValidatingFormValueModel

Nested classes/interfaces inherited from class org.springframework.binding.form.support.AbstractFormModel

AbstractFormModel.ChildStateChangeHandler, AbstractFormModel.ConvertingValueModelKey, AbstractFormModel.ParentStateChangeHandler

Field Summary

Fields inherited from class org.springframework.binding.form.support.AbstractFormModel

childStateChangeHandler, parentStateChangeHandler

Fields inherited from class org.springframework.binding.value.support.AbstractPropertyChangePublisher

logger

Fields inherited from interface org.springframework.binding.form.ValidatingFormModel

VALIDATING_PROPERTY

Fields inherited from interface org.springframework.binding.form.FormModel

COMMITTABLE_PROPERTY, DIRTY_PROPERTY, ENABLED_PROPERTY, READONLY_PROPERTY

Constructor Summary

DefaultFormModel()

DefaultFormModel(MutablePropertyAccessStrategy domainObjectAccessStrategy)

DefaultFormModel(MutablePropertyAccessStrategy domainObjectAccessStrategy, boolean bufferChanges)

DefaultFormModel(Object domainObject)

DefaultFormModel(Object domainObject, boolean buffered)

DefaultFormModel(ValueModel domainObjectHolder)

DefaultFormModel(ValueModel domainObjectHolder, boolean buffered)

Method Summary

void	addChild(HierarchicalFormModel child) Add child to this FormModel.
protected void	childStateChanged(PropertyChangeEvent evt) Events from the child form model or value models that have side-effects on this form model should be handled here.
protected void	clearBindingError(DefaultFormModel.ValidatingFormValueModel valueModel)
void	clearValidationMessage(ValidationMessage validationMessage) Clear validation messages that are generated by a process separate from the standard Validator.
protected void	formPropertyValueChanged(String formProperty)
protected ValidationMessage	getBindingErrorMessage(String propertyName, Object valueBeingSet, Exception e)
boolean	getHasErrors() Does this ValidatingFormModel or any of its children contain errors?
ValidationResultsModel	getValidationResults() Returns the ValidationResultsModel which encapsulates the set of validation messages currently active against this form model.
Validator	getValidator() Get the validator that will be used to validate the form model.
protected void	hasErrorsUpdated()
protected void	init() Initialization of DefaultFormModel.
boolean	isCommittable() Returns true if the changes held by this form are able to be committed.
boolean	isValidating() Is this form model currently validating?
protected void	parentStateChanged(PropertyChangeEvent evt) Events from the parent form model that have side-effects on this form model should be handled here.
protected void	postProcessNewConvertingValueModel(String formProperty, Class targetClass, ValueModel valueModel) Provides a hook for subclasses to perform some processing after a new converting value model has been added to this form model.
protected void	postProcessNewValueModel(String formProperty, ValueModel valueModel) Provides a hook for subclasses to perform some processing after a new value model has been added to this form model.
protected ValueModel	preProcessNewConvertingValueModel(String formProperty, Class targetClass, ValueModel formValueModel) Provides a hook for subclasses to optionally decorate a new converting value model added to this form model.
protected ValueModel	preProcessNewValueModel(String formProperty, ValueModel formValueModel) Provides a hook for subclasses to optionally decorate a new value model added to this form model.
protected void	raiseBindingError(DefaultFormModel.ValidatingFormValueModel valueModel, Object valueBeingSet, Exception e)
void	raiseValidationMessage(ValidationMessage validationMessage) Provide validation messages that are generated by a process separate from the standard Validator.
void	removeChild(HierarchicalFormModel child) Remove a child FormModel.
void	removeParent() Remove the parent form model
void	setBindingErrorMessageProvider(BindingErrorMessageProvider bindingErrorMessageProvider)
void	setParent(HierarchicalFormModel parent) Sets the parent form model.
void	setValidating(boolean validating) Sets whether or not validation is currently enabled for this form model.
void	setValidator(Validator validator) Set the validator that will be used to validate the form model.
String	toString()
void	validate() Forces the form model to validate its self.
protected void	validateAfterPropertyChanged(String formProperty)
protected void	validatingUpdated()

Methods inherited from class org.springframework.binding.form.support.AbstractFormModel

add, add, add, addCommitListener, addMethod, addMethod, commit, committableUpdated, createConvertingValueModel, createValueModel, dirtyUpdated, enabledUpdated, getChildren, getConversionService, getDefaultInstanceClass, getFieldFace, getFieldFaceSource, getFieldMetadata, getFieldNames, getFormObject, getFormObjectHolder, getFormObjectPropertyAccessStrategy, getId, getParent, getPropertyAccessStrategy, getValueModel, getValueModel, handleSetNullFormObject, hasValueModel, isBuffered, isDirty, isEnabled, isReadOnly, postCommit, preCommit, prepareValueModel, readOnlyUpdated, registerPropertyConverter, removeCommitListener, reset, revert, setConversionService, setDefaultInstanceClass, setEnabled, setFieldFaceSource, setFormObject, setId, setReadOnly

Methods inherited from class org.springframework.binding.value.support.AbstractPropertyChangePublisher

addPropertyChangeListener, addPropertyChangeListener, addVetoableChangeListener, addVetoableChangeListener, firePropertiesChanged, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, fireVetoableChange, fireVetoableChange, fireVetoableChange, fireVetoableChange, fireVetoableChange, getPropertyChangeListeners, getPropertyChangeListeners, getVetoableChangeListeners, getVetoableChangeListeners, hasChanged, hasChanged, hasChanged, hasChanged, hasChanged, hasChanged, removePropertyChangeListener, removePropertyChangeListener, removeVetoableChangeListener, removeVetoableChangeListener

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.springframework.binding.form.ConfigurableFormModel

add, add, add, addMethod, addMethod, setEnabled, setId, setReadOnly

Methods inherited from interface org.springframework.binding.form.HierarchicalFormModel

getChildren, getParent

Methods inherited from interface org.springframework.binding.form.FormModel

addCommitListener, commit, getFieldFace, getFieldMetadata, getFieldNames, getFormObject, getFormObjectHolder, getId, getValueModel, getValueModel, hasValueModel, isBuffered, isDirty, isEnabled, isReadOnly, registerPropertyConverter, removeCommitListener, reset, revert, setFormObject

Methods inherited from interface org.springframework.binding.value.PropertyChangePublisher

addPropertyChangeListener, addPropertyChangeListener, removePropertyChangeListener, removePropertyChangeListener

Constructor Detail

DefaultFormModel

public DefaultFormModel()

DefaultFormModel

public DefaultFormModel(Object domainObject)

DefaultFormModel

public DefaultFormModel(Object domainObject,
                        boolean buffered)

DefaultFormModel

public DefaultFormModel(ValueModel domainObjectHolder)

DefaultFormModel

public DefaultFormModel(ValueModel domainObjectHolder,
                        boolean buffered)

DefaultFormModel

public DefaultFormModel(MutablePropertyAccessStrategy domainObjectAccessStrategy)

DefaultFormModel

public DefaultFormModel(MutablePropertyAccessStrategy domainObjectAccessStrategy,
                        boolean bufferChanges)

Method Detail

init

protected void init()

Initialization of DefaultFormModel. Adds a listener on the Enabled property in order to switch validating state on or off. When disabling a formModel, no validation will happen.

isValidating

public boolean isValidating()

Is this form model currently validating?

Specified by:

isValidating in interface ValidatingFormModel

setValidating

public void setValidating(boolean validating)

Description copied from interface: ValidatingFormModel

Sets whether or not validation is currently enabled for this form model. If validation is enabled the form model will immediately validate all form properties. If validation is disabled all validation messages held by the ValidationResultsModel will be cleared.

Specified by:

setValidating in interface ValidatingFormModel

validatingUpdated

protected void validatingUpdated()

addChild

public void addChild(HierarchicalFormModel child)

Description copied from class: AbstractFormModel

Add child to this FormModel. Dirty and committable changes are forwarded to parent model.

Specified by:

addChild in interface HierarchicalFormModel

Overrides:

addChild in class AbstractFormModel

Parameters:

child - FormModel to add as child.

removeChild

public void removeChild(HierarchicalFormModel child)

Description copied from class: AbstractFormModel

Remove a child FormModel. Dirty and committable listeners are removed. When child was dirty, remove the formModel from the dirty list and update the dirty state.

Specified by:

removeChild in interface HierarchicalFormModel

Overrides:

removeChild in class AbstractFormModel

Parameters:

child - FormModel to remove from childlist.

childStateChanged

protected void childStateChanged(PropertyChangeEvent evt)

Events from the child form model or value models that have side-effects on this form model should be handled here. This includes:

• Dirty state: when a child is dirty, the parent should be dirty.
• Committable state: when a child is committable, the parent might be committable as well. The committable state of the parent should be taken into account and revised when a child sends this event.

Note that we include value models and their metadata as being children. As these are low level models, they cannot be parents and therefore don't show up in AbstractFormModel.parentStateChanged(PropertyChangeEvent). Additionally the DefaultFormModel adds the event:

• Has errors event: if the validation results model contains errors, the form model error state should be revised as well as the committable state.

Note that we see the ValidationResultsModel as a child model of the DefaultFormModel as the result model is bundled together with the value models.

Overrides:

childStateChanged in class AbstractFormModel

setParent

public void setParent(HierarchicalFormModel parent)

Description copied from interface: HierarchicalFormModel

Sets the parent form model.

Specified by:

setParent in interface HierarchicalFormModel

Overrides:

setParent in class AbstractFormModel

parentStateChanged

protected void parentStateChanged(PropertyChangeEvent evt)

Events from the parent form model that have side-effects on this form model should be handled here. This includes:

• Enabled state: when parent gets disabled, child should be disabled as well. If parent is enabled, child should go back to its original state.
• Read-only state: when a parent is set read-only, child should be read-only as well. If parent is set editable, child should go back to its original state.

Additionally the DefaultFormModel adds the event:

• Validating state: if validating is disabled on parent, child should not validate as well. If parent is set to validating the child's former validating state should apply.

Overrides:

parentStateChanged in class AbstractFormModel

removeParent

public void removeParent()

Description copied from interface: HierarchicalFormModel

Remove the parent form model

Specified by:

removeParent in interface HierarchicalFormModel

Overrides:

removeParent in class AbstractFormModel

getValidationResults

public ValidationResultsModel getValidationResults()

Description copied from interface: ValidatingFormModel

Returns the ValidationResultsModel which encapsulates the set of validation messages currently active against this form model. Will be empty if validation is disabled.

Specified by:

getValidationResults in interface ValidatingFormModel

getHasErrors

public boolean getHasErrors()

Description copied from interface: ValidatingFormModel

Does this ValidatingFormModel or any of its children contain errors?

Specified by:

getHasErrors in interface ValidatingFormModel

hasErrorsUpdated

protected void hasErrorsUpdated()

validate

public void validate()

Description copied from interface: ValidatingFormModel

Forces the form model to validate its self. If validation is disabled it does nothing.

Specified by:

validate in interface ValidatingFormModel

getValidator

public Validator getValidator()

Description copied from interface: ValidatingFormModel

Get the validator that will be used to validate the form model.

Specified by:

getValidator in interface ValidatingFormModel

setValidator

public void setValidator(Validator validator)

Set the validator that will be used to validate the form model.

Setting a validator will trigger a validate of the current object.

Specified by:

setValidator in interface ValidatingFormModel

isCommittable

public boolean isCommittable()

Description copied from interface: FormModel

Returns true if the changes held by this form are able to be committed. A form is committable when it and it's child form models have no validation errors.

Specified by:

isCommittable in interface FormModel

Overrides:

isCommittable in class AbstractFormModel

preProcessNewValueModel

protected ValueModel preProcessNewValueModel(String formProperty,
                                             ValueModel formValueModel)

Description copied from class: AbstractFormModel

Provides a hook for subclasses to optionally decorate a new value model added to this form model.

Specified by:

preProcessNewValueModel in class AbstractFormModel

postProcessNewValueModel

protected void postProcessNewValueModel(String formProperty,
                                        ValueModel valueModel)

Description copied from class: AbstractFormModel

Provides a hook for subclasses to perform some processing after a new value model has been added to this form model.

Specified by:

postProcessNewValueModel in class AbstractFormModel

preProcessNewConvertingValueModel

protected ValueModel preProcessNewConvertingValueModel(String formProperty,
                                                       Class targetClass,
                                                       ValueModel formValueModel)

Description copied from class: AbstractFormModel

Provides a hook for subclasses to optionally decorate a new converting value model added to this form model.

Specified by:

preProcessNewConvertingValueModel in class AbstractFormModel

postProcessNewConvertingValueModel

protected void postProcessNewConvertingValueModel(String formProperty,
                                                  Class targetClass,
                                                  ValueModel valueModel)

Description copied from class: AbstractFormModel

Provides a hook for subclasses to perform some processing after a new converting value model has been added to this form model.

Specified by:

postProcessNewConvertingValueModel in class AbstractFormModel

formPropertyValueChanged

protected void formPropertyValueChanged(String formProperty)

validateAfterPropertyChanged

protected void validateAfterPropertyChanged(String formProperty)

Parameters:

formProperty - the name of the only property that has changed since the last call to validateAfterPropertyChange or null if this is not known/available.

raiseBindingError

protected void raiseBindingError(DefaultFormModel.ValidatingFormValueModel valueModel,
                                 Object valueBeingSet,
                                 Exception e)

clearBindingError

protected void clearBindingError(DefaultFormModel.ValidatingFormValueModel valueModel)

raiseValidationMessage

public void raiseValidationMessage(ValidationMessage validationMessage)

Description copied from interface: ValidatingFormModel

Provide validation messages that are generated by a process separate from the standard Validator.

All error messages that are raised using this method must be cleared using the method #cleanValdationMessage(ValidationMessage) before the form model can be commited.

Specified by:

raiseValidationMessage in interface ValidatingFormModel

Parameters:

validationMessage - the message to raise

clearValidationMessage

public void clearValidationMessage(ValidationMessage validationMessage)

Description copied from interface: ValidatingFormModel

Clear validation messages that are generated by a process separate from the standard Validator.

Specified by:

clearValidationMessage in interface ValidatingFormModel

Parameters:

validationMessage - the message to clear

getBindingErrorMessage

protected ValidationMessage getBindingErrorMessage(String propertyName,
                                                   Object valueBeingSet,
                                                   Exception e)

setBindingErrorMessageProvider

public void setBindingErrorMessageProvider(BindingErrorMessageProvider bindingErrorMessageProvider)

toString

public String toString()

Overrides:

toString in class Object