com.google.gwt.view.client

Class AsyncDataProvider<T>

java.lang.Object

com.google.gwt.view.client.AbstractDataProvider<T>

com.google.gwt.view.client.AsyncDataProvider<T>

Type Parameters:

T - the data type of records in the list

All Implemented Interfaces:

ProvidesKey<T>

public abstract class AsyncDataProvider<T>
extends AbstractDataProvider<T>

An implementation of AbstractDataProvider that allows the data to be modified.

Example

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AsyncDataProvider() Constructs an AsyncDataProvider without a key provider.
protected	AsyncDataProvider(ProvidesKey<T> keyProvider) Constructs an AsyncDataProvider with the given key provider.

Method Summary

Modifier and Type	Method and Description
void	updateRowCount(int size, boolean exact) Inform the displays of the total number of items that are available.
void	updateRowData(int start, List<T> values) Inform the displays of the new data.

Methods inherited from class com.google.gwt.view.client.AbstractDataProvider

addDataDisplay, getDataDisplays, getKey, getKeyProvider, getRanges, onRangeChanged, removeDataDisplay, updateRowData

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, toString

Constructor Detail

AsyncDataProvider

protected AsyncDataProvider()

Constructs an AsyncDataProvider without a key provider.

AsyncDataProvider

protected AsyncDataProvider(ProvidesKey<T> keyProvider)

Constructs an AsyncDataProvider with the given key provider.

Parameters:

keyProvider - an instance of ProvidesKey, or null if the record object should act as its own key

Method Detail

updateRowCount

public void updateRowCount(int size,
                           boolean exact)

Description copied from class: AbstractDataProvider

Inform the displays of the total number of items that are available.

Overrides:

updateRowCount in class AbstractDataProvider<T>

Parameters:

size - the new total row count

exact - true if the count is exact, false if it is an estimate

updateRowData

public void updateRowData(int start,
                          List<T> values)

Description copied from class: AbstractDataProvider

Inform the displays of the new data.

Overrides:

updateRowData in class AbstractDataProvider<T>

Parameters:

start - the start index

values - the data values