org.jdesktop.jdnc.form
Class ComponentMap

java.lang.Object
  org.jdesktop.jdnc.form.ComponentMap

public class ComponentMap
extends java.lang.Object

Choosing strategy for creating components.

Extracted from DefaultFormFactory to have a "pluggable" place for creating custom components. The usage of a ComponentCreator should be viewed as an implementation detail, they don't do much.

The created components have their name property set to metaData.name. This will enable searching for them in a container and facilitates testing.

PENDING: should be factored into an interface and a default implementation.

PENDING: think about task distribution - only visual aspects of the metaData should be handled here.

Author:

Jeanette Winzenburg

Nested Class Summary

static class	ComponentMap.BooleanCreator
static class	ComponentMap.DatePickerCreator
static class	ComponentMap.EnumerationCreator
static class	ComponentMap.FormCreator
static class	ComponentMap.ImagePanelCreator
static class	ComponentMap.LabelCreator
static class	ComponentMap.LinkLabelCreator
static class	ComponentMap.ListCreator
class	ComponentMap.NumberCreator creates JSpinner if metaData is NumberMetaData, the map's fallback component otherwise.
static class	ComponentMap.TableCreator
static class	ComponentMap.TextCreator creates and returns a JTextComponent.

Constructor Summary

ComponentMap()

Method Summary

protected java.lang.Class	checkForArray(java.lang.Class elementClass)
javax.swing.JComponent	createComponent(MetaData metaData) creates and returns a component based on the given MetaData.
protected ComponentCreator	findByClass(java.lang.Class elementClass)
protected ComponentCreator	findByElementClass(java.lang.Class elementClass)
protected ComponentCreator	getComponentCreator(MetaData metaData) Encapsulates lookup-strategy to find a fitting ComponentCreator.
protected ComponentCreator	getFallBackComponentCreator()
static ComponentMap	getInstance()
protected void	initAssignablesClasses(java.util.List assignables)
protected void	initCreators(java.util.Map map)
static void	setInstance(ComponentMap map)

Methods inherited from class java.lang.Object

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

Constructor Detail

ComponentMap

public ComponentMap()

Method Detail

getInstance

public static ComponentMap getInstance()

setInstance

public static void setInstance(ComponentMap map)

createComponent

public javax.swing.JComponent createComponent(MetaData metaData)

creates and returns a component based on the given MetaData.

Parameters:

metaData -

Returns:

getComponentCreator

protected ComponentCreator getComponentCreator(MetaData metaData)

Encapsulates lookup-strategy to find a fitting ComponentCreator.

Here:

1. look-up by metaData.class, if nothing found
2. look-up by metaData.elementClass, if nothing found
3. fallback component

Parameters:

metaData -

Returns:

Throws:

java.lang.NullPointerException - if metaData == null

findByElementClass

protected ComponentCreator findByElementClass(java.lang.Class elementClass)

checkForArray

protected java.lang.Class checkForArray(java.lang.Class elementClass)

findByClass

protected ComponentCreator findByClass(java.lang.Class elementClass)

getFallBackComponentCreator

protected ComponentCreator getFallBackComponentCreator()

initCreators

protected void initCreators(java.util.Map map)

initAssignablesClasses

protected void initAssignablesClasses(java.util.List assignables)