Package org.apache.tapestry5.beanmodel

Interface BeanModel<T>

All Known Implementing Classes:

BeanModelImpl

public interface BeanModel<T>

Provides the information necessary to build a user interface to view, create or edit an instance of a particular type. BeanModels are not thread-safe, they are also not serializable. Here, and in PropertyModel, the term "propertyName" is used for simplicitly. However, a full property expression may be utilized when adding new properties to an existing BeanModel.

See Also:

BeanModelSource

Method Summary

Modifier and Type	Method	Description
PropertyModel	add(java.lang.String propertyName)	Adds a new property to the model, returning its mutable model for further refinement.
PropertyModel	add(java.lang.String propertyName, PropertyConduit conduit)	Adds a new, synthetic property to the model, returning its mutable model for further refinement.
PropertyModel	add(RelativePosition position, java.lang.String existingPropertyName, java.lang.String propertyName)	Adds a new property to the model (as with add(String)), ordered before or after an existing property.
PropertyModel	add(RelativePosition position, java.lang.String existingPropertyName, java.lang.String propertyName, PropertyConduit conduit)	Adds a new property to the model, ordered before or after an existing property.
PropertyModel	addEmpty(java.lang.String propertyName)	Adds an empty property (one with no property conduit).
PropertyModel	addExpression(java.lang.String propertyName, java.lang.String expression)	Adds a new synthetic property to the model, returning its mutable model for further refinement.
BeanModel<T>	exclude(java.lang.String... propertyNames)	Removes the named properties from the model, if present.
PropertyModel	get(java.lang.String propertyName)	Returns the named model.
java.lang.Class<T>	getBeanType()	Returns the type of bean for which this model was initially created.
PropertyModel	getById(java.lang.String propertyId)	Returns the identified model.
java.util.List<java.lang.String>	getPropertyNames()	Returns a list of the editable properties of the bean, in presentation order.
BeanModel<T>	include(java.lang.String... propertyNames)	Re-orders the properties of the model into the specified order.
T	newInstance()	Creates a new bean instance.
BeanModel<T>	reorder(java.lang.String... propertyNames)	Re-orders the properties of the model into the specified order.

Method Detail

getBeanType

java.lang.Class<T> getBeanType()

Returns the type of bean for which this model was initially created.

newInstance

T newInstance()

Creates a new bean instance. This is based on ObjectLocator.autobuild(Class), so a public constructor will be used, and dependencies injected.

Returns:

new instance of the bean

getPropertyNames

java.util.List<java.lang.String> getPropertyNames()

Returns a list of the editable properties of the bean, in presentation order.

get

PropertyModel get(java.lang.String propertyName)

Returns the named model.

Parameters:

propertyName - name of property to retrieve model for (case is ignored)

Returns:

the model for the property

Throws:

java.lang.RuntimeException - if the bean editor model does not have a property model for the provided name

getById

PropertyModel getById(java.lang.String propertyId)

Returns the identified model. Property ids are a stripped version of the property name. Case is ignored.

Parameters:

propertyId - matched caselessly against PropertyModel.getId()

Throws:

java.lang.RuntimeException - if the bean editor model does not have a property model with the indicated id

add

PropertyModel add(java.lang.String propertyName)

Adds a new property to the model, returning its mutable model for further refinement. The property is added to the end of the list of properties. The property must be real (but may have been excluded if there was no datatype associated with the property). To add a synthetic property, use add(String, org.apache.tapestry5.beanmodel.PropertyConduit)

Parameters:

propertyName - name of property to add

Returns:

the new property model (for further configuration)

Throws:

java.lang.RuntimeException - if the property already exists

addExpression

PropertyModel addExpression(java.lang.String propertyName,
                            java.lang.String expression)

Adds a new synthetic property to the model, returning its mutable model for further refinement. The property is added to the end of the list of properties.

Parameters:

propertyName - name of property to add

expression - expression for the property

Returns:

the new property model (for further configuration)

Throws:

java.lang.RuntimeException - if the property already exists

Since:

5.3

addEmpty

PropertyModel addEmpty(java.lang.String propertyName)

Adds an empty property (one with no property conduit).

Parameters:

propertyName - name of property to add

Returns:

the new property model (for further configuration)

Throws:

java.lang.RuntimeException - if the property already exists

Since:

5.3

add

PropertyModel add(RelativePosition position,
                  java.lang.String existingPropertyName,
                  java.lang.String propertyName)

Adds a new property to the model (as with add(String)), ordered before or after an existing property.

Parameters:

position - controls whether the new property is ordered before or after the existing property

existingPropertyName - the name of an existing property (this must exist)

propertyName - the new property to add

Returns:

the new property model (for further configuration)

Throws:

java.lang.RuntimeException - if the existing property does not exist, or if the new property already does exist

add

PropertyModel add(RelativePosition position,
                  java.lang.String existingPropertyName,
                  java.lang.String propertyName,
                  PropertyConduit conduit)

Adds a new property to the model, ordered before or after an existing property.

Parameters:

position - controls whether the new property is ordered before or after the existing property

existingPropertyName - the name of an existing property (this must exist)

propertyName - the new property to add

conduit - conduit used to read or update the property; this may be null for a synthetic or placeholder property

Returns:

the new property model (for further configuration)

Throws:

java.lang.RuntimeException - if the existing property does not exist, or if the new property already does exist

add

PropertyModel add(java.lang.String propertyName,
                  PropertyConduit conduit)

Adds a new, synthetic property to the model, returning its mutable model for further refinement.

Parameters:

propertyName - name of property to add

conduit - the conduit used to read or update the property; this may be null for a synthetic or placeholder property. Instead of passing null, please invoke addEmpty(String).

Returns:

the model for the property

Throws:

java.lang.RuntimeException - if the property already exists

See Also:

addExpression(String, String)

exclude

BeanModel<T> exclude(java.lang.String... propertyNames)

Removes the named properties from the model, if present. It is not considered an error to remove a property that does not exist.

Parameters:

propertyNames - the names of properties to be removed (case insensitive)

Returns:

the model for further modifications

reorder

BeanModel<T> reorder(java.lang.String... propertyNames)

Re-orders the properties of the model into the specified order. Existing properties that are not indicated are retained, but ordered to the end of the list.

Parameters:

propertyNames - property names in order they should be displayed (case insensitive)

Returns:

the model for further modifications

include

BeanModel<T> include(java.lang.String... propertyNames)

Re-orders the properties of the model into the specified order. Existing properties that are not indicated are removed.

Parameters:

propertyNames - the names of properties to be retained

Returns:

the model for further modifications