com.vaadin.shared.data

Interface DataProviderRpc

All Superinterfaces:

ClientRpc, Serializable

public interface DataProviderRpc
extends ClientRpc

RPC interface used for pushing container data to the client.

Since:

7.4

Author:

Vaadin Ltd

Method Summary

Modifier and Type	Method and Description
void	insertRowData(int firstRowIndex, int count) Informs the client to insert new row data.
void	removeRowData(int firstRowIndex, int count) Informs the client to remove row data.
void	resetDataAndSize(int size) Resets all data and defines a new size for the data.
void	setRowData(int firstRowIndex, JsonArray rowDataJson) Sends updated row data to a client.
void	updateRowData(JsonArray rowArray) Informs the client that rows have been updated.

Method Detail

setRowData

@NoLayout
void setRowData(int firstRowIndex,
                          JsonArray rowDataJson)

Sends updated row data to a client.

rowDataJson represents a JSON array of JSON objects in the following format:

 [{
   "d": [COL_1_JSON, COL_2_json, ...],
   "k": "1"
 },
 ...
 ]
 

where COL_INDEX is the index of the column (as a string), and COL_n_JSON is valid JSON of the column's data.

Parameters:

firstRowIndex - the index of the first updated row

rowDataJson - the updated row data

See Also:

GridState.JSONKEY_DATA, com.vaadin.ui.Renderer#encode(Object)

removeRowData

@NoLayout
void removeRowData(int firstRowIndex,
                             int count)

Informs the client to remove row data.

Parameters:

firstRowIndex - the index of the first removed row

count - the number of rows removed from firstRowIndex and onwards

insertRowData

@NoLayout
void insertRowData(int firstRowIndex,
                             int count)

Informs the client to insert new row data.

Parameters:

firstRowIndex - the index of the first new row

count - the number of rows inserted at firstRowIndex

resetDataAndSize

void resetDataAndSize(int size)

Resets all data and defines a new size for the data.

This should be used in the cases where the data has changed in some unverifiable way. I.e. "something happened". This will lead to a re-rendering of the current Grid viewport

Parameters:

size - the size of the new data set

updateRowData

@NoLayout
void updateRowData(JsonArray rowArray)

Informs the client that rows have been updated. The client-side DataSource will map the given data to correct index if it should be in the cache.

Parameters:

rowArray - array of updated rows

Since:

7.6