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Java Source Code / Java Documentation » Ajax » MyGWT » net.mygwt.ui.client.data

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

net.mygwt.ui.client.data .Model

All known Subclasses:   net.mygwt.samples.resources.client .Music,  net.mygwt.samples.data.client .Post,  net.mygwt.samples.resources.client .Stock,  net.mygwt.samples.resources.client .Folder,  net.mygwt.samples.resources.client .MailItem,
Model
public class Model implements IsSerializable(Code)
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
See Also:   IsSerializable

Field Summary
final public static int Add
     Fired when a child object is added to the model (value is 10).
final public static int Insert
     Fired when a child object is inserted to the model (value is 20).
final public static int Remove
     Fired when a child object is removed from the model (value is 30).
final public static int Update
     Fired when the model has beed updated (value is 40).
protected List children
     The model's children.
protected Model parent
     The model's parent.
protected Map properties
     The model's properties.

Constructor Summary
public Model()
     Creates a new model instance.
public Model(Map properties)
     Creates a new model instance with the specified properties.

Method Summary
public void add(Model child)
     Adds a child to the model and fires an add event.
public void addChangeListener(ChangeListener listener)
     Adds a listener to receive change events.
protected void fireEvent(int type)

protected void fireEvent(int type, Model item)

public Object get(String name)
     Returns a properties value.
public String getAsString(String name)
     Returns a proprty value as a String by simplying calling toString on the value.
public Model getChild(int index)
     Returns the child at the given index or null if the index is out of range.
public int getChildCount()
     Returns the number of children.
public List getChildren()
     Returns the model's children.
public Model getParent()
     Returns the model's parent or null if no parent.
public Iterator getPropertyNames()
     Returns an iterator for the model's property names.
public void insert(Model child, int index)
     Inserts a child to the model and fires an insert event.
protected void notify(ChangeEvent evt)

public void remove(int index)
     Removes the child at the given index.
public void remove(Model child)
     Removes the child from the model and fires a remove event.
public void removeAll()
     Removes all the model's children.
public void removeChangeListener(ChangeListener listener)
     Removes a previously added change listener.
public void set(String name, Object value)
     Sets the property and fires an update event.
public void setChildren(List children)
     Sets the model's children.

Field Detail
Add
final public static int Add(Code)
Fired when a child object is added to the model (value is 10).

Insert
final public static int Insert(Code)
Fired when a child object is inserted to the model (value is 20).

Remove
final public static int Remove(Code)
Fired when a child object is removed from the model (value is 30).

Update
final public static int Update(Code)
Fired when the model has beed updated (value is 40).

children
protected List children(Code)
The model's children.

parent
protected Model parent(Code)
The model's parent.

properties
protected Map properties(Code)
The model's properties.

Constructor Detail
Model
public Model()(Code)
Creates a new model instance.

Model
public Model(Map properties)(Code)
Creates a new model instance with the specified properties.
Parameters:
  properties -

Method Detail
add
public void add(Model child)(Code)
Adds a child to the model and fires an add event.
Parameters:
  child - the child to be added

addChangeListener
public void addChangeListener(ChangeListener listener)(Code)
Adds a listener to receive change events.
Parameters:
  listener - the listener to be added

fireEvent
protected void fireEvent(int type)(Code)

fireEvent
protected void fireEvent(int type, Model item)(Code)

get
public Object get(String name)(Code)
Returns a properties value.
Parameters:
  name - the property name the value

getAsString
public String getAsString(String name)(Code)
Returns a proprty value as a String by simplying calling toString on the value. Subclasses should override to provide more specific behavior.
Parameters:
  name - the property name the String value

getChild
public Model getChild(int index)(Code)
Returns the child at the given index or null if the index is out of range.
Parameters:
  index - the index to be retrieved the model at the index

getChildCount
public int getChildCount()(Code)
Returns the number of children. the number of children

getChildren
public List getChildren()(Code)
Returns the model's children. the children

getParent
public Model getParent()(Code)
Returns the model's parent or null if no parent. the parent

getPropertyNames
public Iterator getPropertyNames()(Code)
Returns an iterator for the model's property names. a iterator

insert
public void insert(Model child, int index)(Code)
Inserts a child to the model and fires an insert event.
Parameters:
  child - the child to be inserted
Parameters:
  index - the location to insert the child

notify
protected void notify(ChangeEvent evt)(Code)

remove
public void remove(int index)(Code)
Removes the child at the given index.
Parameters:
  index - the child index

remove
public void remove(Model child)(Code)
Removes the child from the model and fires a remove event.
Parameters:
  child - the child to be removed

removeAll
public void removeAll()(Code)
Removes all the model's children.

removeChangeListener
public void removeChangeListener(ChangeListener listener)(Code)
Removes a previously added change listener.
Parameters:
  listener - the listener to be removed

set
public void set(String name, Object value)(Code)
Sets the property and fires an update event.
Parameters:
  name - the property name
Parameters:
  value - the property value

setChildren
public void setChildren(List children)(Code)
Sets the model's children. All existing children are first removed.
Parameters:
  children - the children to be set

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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