RestDataSource and DSPProtocol issue

[lazinskip]

Hi I am using smartgwt 2.5 nightly build from 2011-03-05 and GWT 2.1.1
I need from DataSource to send request in postxml format but with datasource:

public DateDS(String id) {
	setID(id);
	setDataProtocol(DSProtocol.POSTXML);
	setDataURL("/Date.Service");
	DataSourceIntegerField dsifDateId = new DataSourceIntegerField("idDaty", "Id");
	dsifDateId.setPrimaryKey(true);
	DataSourceDateTimeField dsdtfDate = new DataSourceDateTimeField("data", "Data");
	setFields(dsifDateId, dsdtfDate);
	}

I get request in format:

data=2011-03-08T07%3A53%3A41&_operationType=add&_oldValues=%7B%7D&_componentId=isc_DynamicForm_0&_dataSource=DateDS&isc_metaDataPrefix=_&isc_dataFormat=xml

To get request in xml format I have to add operationbindings to datasource even though I do not need to set anything for particular operation.
after adding:

	OperationBinding fetchOB = new OperationBinding();
	fetchOB.setOperationType(DSOperationType.FETCH);
	OperationBinding addOB = new OperationBinding();
	addOB.setOperationType(DSOperationType.ADD);
	OperationBinding updateOB = new OperationBinding();
	updateOB.setOperationType(DSOperationType.UPDATE);
	setOperationBindings(addOB,fetchOB,updateOB);

request goes with proper xml format.
Can somebody from isomorphic explain whether it is issue or maybe it has purpose ?

[Isomorphic]

See the docs - there are default OperationBindings on the RestDataSource.

[lazinskip]

thanks for response, I missed that
according to java doc:

The default OperationBindings for a RestDataSource specify dataProtocol as "getParams" for the fetch operation, and "postParams" for update, add and remove operations.