com.extjs.gxt.ui.client.data
Class BaseModel

java.lang.Object
  com.extjs.gxt.ui.client.data.BaseModelData
      com.extjs.gxt.ui.client.data.BaseModel

All Implemented Interfaces:

ChangeEventSource, Model, ModelData, java.io.Serializable

Direct Known Subclasses:

AbstractAxis, BaseTreeModel, BeanModel, ChartConfig, ChartModel, DataConfig, Keys, Label, Legend, LineChart.LineStyle, RadarAxis.RadarLabels, Text, ToolTip

public class BaseModel
extends BaseModelData
implements Model, java.io.Serializable

Models are generic data structures that notify listeners when changed. The structure allows a form of 'introspection' as all property names and values can be queried and retrieved at runtime.

All events fired by the model will bubble to all parents.

Model objects implement Serializable and can therefore be used with GWT RPC. A model's children are not marked transient and will be passed in remote procedure calls.

Events:

Model.Add : (source, item)

Fires after the button is selected.

• source : this
• item : add item

Model.Insert : (source, item)

Fires after the button is selected.

• source : this
• item : insert item
• index : insert index

Model.Update : (source, item)

Fires after the button is selected.

• source : this
• item : this

See Also:

ChangeListener, Serializable, Serialized Form

Field Summary

protected ChangeEventSupport

changeEventSupport

Fields inherited from class com.extjs.gxt.ui.client.data.BaseModelData

allowNestedValues, map

Fields inherited from interface com.extjs.gxt.ui.client.data.ChangeEventSource

Add, Remove, Update

Constructor Summary

BaseModel()
Creates a new base model.

BaseModel(java.util.Map<java.lang.String,java.lang.Object> properties)
Creates a new base model.

Method Summary

void	addChangeListener(ChangeListener... listener) Adds a listener to receive change events.
void	addChangeListener(java.util.List<ChangeListener> listeners) Adds the listeners to receive change events.
protected void	fireEvent(int type)
protected void	fireEvent(int type, Model item)
boolean	isSilent() Returns true if change events are disabled.
void	notify(ChangeEvent evt) Notifies listeners of the given change event.
protected void	notifyPropertyChanged(java.lang.String name, java.lang.Object value, java.lang.Object oldValue)
<X> X	remove(java.lang.String name) Removes the named property from this model instance.
void	removeChangeListener(ChangeListener... listener) Removes a previously added change listener.
void	removeChangeListeners() Removes all change listeners.
<X> X	set(java.lang.String name, X value) Sets the property and fires an Update event.
void	setSilent(boolean silent) Sets whether change events are fired.

Methods inherited from class com.extjs.gxt.ui.client.data.BaseModelData

get, get, getProperties, getPropertyNames, isAllowNestedValues, setAllowNestedValues, setProperties

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.extjs.gxt.ui.client.data.ModelData

get, getProperties, getPropertyNames

Field Detail

changeEventSupport

protected transient ChangeEventSupport changeEventSupport

Constructor Detail

BaseModel

public BaseModel()

Creates a new base model.

BaseModel

public BaseModel(java.util.Map<java.lang.String,java.lang.Object> properties)

Creates a new base model.

Parameters:

properties - the initial values

Method Detail

addChangeListener

public void addChangeListener(ChangeListener... listener)

Adds a listener to receive change events.

Specified by:

addChangeListener in interface ChangeEventSource

Parameters:

listener - the listener to be added

addChangeListener

public void addChangeListener(java.util.List<ChangeListener> listeners)

Adds the listeners to receive change events.

Parameters:

listeners - the listeners to add

isSilent

public boolean isSilent()

Returns true if change events are disabled.

Returns:

true if silent

notify

public void notify(ChangeEvent evt)

Description copied from interface: ChangeEventSource

Notifies listeners of the given change event.

Specified by:

notify in interface ChangeEventSource

Parameters:

evt - the change event

remove

public <X> X remove(java.lang.String name)

Description copied from interface: ModelData

Removes the named property from this model instance.

Specified by:

remove in interface ModelData

Overrides:

remove in class BaseModelData

Parameters:

name - the property name

Returns:

the old value for the property

removeChangeListener

public void removeChangeListener(ChangeListener... listener)

Removes a previously added change listener.

Specified by:

removeChangeListener in interface ChangeEventSource

Parameters:

listener - the listener to be removed

removeChangeListeners

public void removeChangeListeners()

Description copied from interface: ChangeEventSource

Removes all change listeners.

Specified by:

removeChangeListeners in interface ChangeEventSource

set

public <X> X set(java.lang.String name,
                 X value)

Description copied from class: BaseModelData

Sets the property and fires an Update event.

Specified by:

set in interface ModelData

Overrides:

set in class BaseModelData

Parameters:

name - the property name

value - the property value

Returns:

the old value for the property

setSilent

public void setSilent(boolean silent)

Description copied from interface: ChangeEventSource

Sets whether change events are fired.

Specified by:

setSilent in interface ChangeEventSource

Parameters:

silent - true to disable change event, otherwise false

fireEvent

protected void fireEvent(int type)

fireEvent

protected void fireEvent(int type,
                         Model item)

notifyPropertyChanged

protected void notifyPropertyChanged(java.lang.String name,
                                     java.lang.Object value,
                                     java.lang.Object oldValue)