com.sencha.gxt.data.client.loader

Class ScriptTagProxy<C>

java.lang.Object

com.sencha.gxt.data.client.loader.ScriptTagProxy<C>

All Implemented Interfaces:

DataProxy<C,JavaScriptObject>

public class ScriptTagProxy<C>
extends Object
implements DataProxy<C,JavaScriptObject>

A DataProxy that reads a data from a URL which may be in a domain other than the originating domain of the running page.

Note that if you are retrieving data from a page that is in a domain that is NOT the same as the originating domain of the running page, you must use this class, rather than HttpProxy.

When using a load config object that implements LoadConfig or ModelData, all properties and property values will be sent as request parameters in the load request.

See Also:

HttpProxy

Constructor Summary

Constructors

Constructor and Description
ScriptTagProxy(String url) Creates a script tag proxy that reads data from a URL that may be in a domain other than the originating domain of the running page.

Method Summary

Modifier and Type	Method and Description
protected String	generateUrl(C loadConfig) Encodes the load config into a format that can be used for a GET query string or a POST url-encoded body.
DataWriter<C,String>	getWriter() Returns the data writer for this proxy.
void	load(C loadConfig, <any> callback) Data should be retrieved using the specified load config.
void	setUrl(String url) Sets the proxy's url.
void	setWriter(DataWriter<C,String> writer) Sets the data writer for this proxy.

Methods inherited from class java.lang.Object

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

Constructor Detail

ScriptTagProxy

public ScriptTagProxy(String url)

Creates a script tag proxy that reads data from a URL that may be in a domain other than the originating domain of the running page.

Parameters:

url - the URL representing the data to retrieve

Method Detail

getWriter

public DataWriter<C,String> getWriter()

Returns the data writer for this proxy. The data writer is responsible for encoding the load config.

Returns:

the data writer

load

public void load(C loadConfig,
                 <any> callback)

Description copied from interface: DataProxy

Data should be retrieved using the specified load config. When specified, the DataReader can be used to "process" the raw data.

Specified by:

load in interface DataProxy<C,JavaScriptObject>

Parameters:

loadConfig - the load config object to be passed to server

callback - the data callback

setUrl

public void setUrl(String url)

Sets the proxy's url.

Parameters:

url - the url

setWriter

public void setWriter(DataWriter<C,String> writer)

Sets the data writer for this proxy. The data writer is responsible for encoding the load config.

Parameters:

writer - the data writer

generateUrl

protected String generateUrl(C loadConfig)

Encodes the load config into a format that can be used for a GET query string or a POST url-encoded body. Use setWriter(com.sencha.gxt.data.shared.writer.DataWriter<C, java.lang.String>) to set the data writer responsible for encoding the load config. If it is not set the load config is assumed to require no further encoding and its value is retrieved using Object.toString().

Parameters:

loadConfig - the load config to encode

Returns:

the encoded load config