Class Ext.data.DataProxy
| Package: | Ext.data |
| Class: | DataProxy |
| Extends: | Object |
| Defined In: | DataProxy.js |
This class is an abstract base class for implementations which provide retrieval of
unformatted data objects.
DataProxy implementations are usually used in conjunction with an implementation of Ext.data.DataReader
(of the appropriate type which knows how to parse the data object) to provide a block of
Ext.data.Records to an Ext.data.Store.
Custom implementations must implement the load method as described in Ext.data.HttpProxy.load.
Properties - Methods - Events
Public Properties
This class has no public properties.
Public Methods
This class has no public methods.
Public Events
| Event | Defined By | |
|---|---|---|
beforeload : ( Object This, Object params ) |
DataProxy | |
| Fires before a network request is made to retrieve a data object. | ||
load : ( Object This, Object o, Object arg ) |
DataProxy | |
| Fires before the load method's callback is called. | ||
loadexception : ( Object This, Object o, Object arg, Object e ) |
DataProxy | |
| Fires if an Exception occurs during data retrieval. | ||
Event Details
beforeload
public event beforeload
Fires before a network request is made to retrieve a data object.
Subscribers will be called with the following parameters:
This: ObjectDataProxy object.params: ObjectThe params parameter to the load function.
This event is defined by DataProxy.
load
public event load
Fires before the load method's callback is called.
Subscribers will be called with the following parameters:
This: ObjectDataProxy object.o: ObjectThe data object.arg: ObjectThe callback argument object passed to the load function.
This event is defined by DataProxy.
loadexception
public event loadexception
Fires if an Exception occurs during data retrieval.
Subscribers will be called with the following parameters:
This: ObjectDataProxy object.o: ObjectThe data object.arg: ObjectThe callback argument object passed to the load function.e: ObjectThe Exception.
This event is defined by DataProxy.