org.formaria.aria.data
Class StateBinding

java.lang.Object
  org.formaria.aria.data.DataBinding
      org.formaria.aria.data.StateBinding

public class StateBinding
extends DataBinding

Bind a component's state to a data model value/node. The binding allows a model node to linked to a UI component so that it can be refreshed when new data is written to the model or conversely when the UI component needs to write data to the model.
This binding is designed to be used by components such as RadioButtons or Checkboxes.

This state change does not affect the content displayed by the component.

Copyright (c) Formaria Ltd., 2008
License: see license.txt

Field Summary

protected java.lang.String	attribStr
protected boolean	isLeafNode
protected java.lang.String	offValue The value which will be used to store the value of the off state of the check/radio components in the model.
protected java.lang.String	onValue The value which will be used to store the value of the on state of the check/radio components in the model.
protected boolean	useBoolean

Fields inherited from class org.formaria.aria.data.DataBinding

component, currentProject, DEFAULT_OUTPUT_PATH, outputModel, outputPath, reevaluate, sourceModel, sourcePath

Constructor Summary

StateBinding()
Default constuctor to enable creation of subclassed custom bindings and late binding.

Method Summary

void	get() Updates the component state with the value obtained from the data model.
java.lang.String	getAttribute() Retrieve the name of the attribute which is storing the value of the binding
java.util.Vector	getAttributes(boolean required) Get the names of the attributes used by this binding class
java.lang.String	getName() Gets the name of the model node
java.lang.String	getType() Get the type of this binding
void	set() Updates the data model with the value retrieved from the component.
void	setAttribute(java.lang.String attrib) Set the name of the attribute which is to be used for storing and retrieving the model value.
void	setOutputPath(java.lang.String newPath) Set the model path for the output/state data
void	setup(Project project, java.lang.Object c, java.util.Hashtable bindingConfig, java.util.Hashtable instanceConfig) Setup and configure the binding instance.

Methods inherited from class org.formaria.aria.data.DataBinding

getAttributes, getComponent, getOutput, getOutputPath, getReevaluate, getSource, getSourcePath, setOutput, setReevaluate, setSource, setSourcePath, setupHelper

Methods inherited from class java.lang.Object

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

Field Detail

isLeafNode

protected boolean isLeafNode

useBoolean

protected boolean useBoolean

attribStr

protected java.lang.String attribStr

onValue

protected java.lang.String onValue

The value which will be used to store the value of the on state of the check/radio components in the model.

offValue

protected java.lang.String offValue

The value which will be used to store the value of the off state of the check/radio components in the model.

Constructor Detail

StateBinding

public StateBinding()

Default constuctor to enable creation of subclassed custom bindings and late binding.

Method Detail

setup

public void setup(Project project,
                  java.lang.Object c,
                  java.util.Hashtable bindingConfig,
                  java.util.Hashtable instanceConfig)

Setup and configure the binding instance. The binding is configured via the XML setup registered for the particular binding type and then, subsequently by attibitional attributes of the binding instance specified in the page declaration, for the individual binding instance. The binding may also obtain configuration or reference information from the component and the project.

Specified by:

setup in class DataBinding

Parameters:

project - the owning project

c - the component being bound

bindingConfig - the XML element which contains the binding configuration

instanceConfig - the XML element which contains the setup attributes of the binding instance

setAttribute

public void setAttribute(java.lang.String attrib)

Set the name of the attribute which is to be used for storing and retrieving the model value.

Parameters:

attrib - the name of the attribute which will store the value.

getAttribute

public java.lang.String getAttribute()

Retrieve the name of the attribute which is storing the value of the binding

get

public void get()

Updates the component state with the value obtained from the data model.

Specified by:

get in class DataBinding

set

public void set()

Updates the data model with the value retrieved from the component.

Specified by:

set in class DataBinding

setOutputPath

public void setOutputPath(java.lang.String newPath)

Set the model path for the output/state data

Overrides:

setOutputPath in class DataBinding

Parameters:

newPath - The path to which the output model is to be bound

getName

public java.lang.String getName()

Gets the name of the model node

Returns:

the name

getAttributes

public java.util.Vector getAttributes(boolean required)

Get the names of the attributes used by this binding class

Overrides:

getAttributes in class DataBinding

Parameters:

required - true to list only the require attribues, false for all attributes

getType

public java.lang.String getType()

Get the type of this binding

Specified by:

getType in class DataBinding

Returns:

the binding type name