private int getRowsToBeRendered() {
if (isDataLoaded()) {
if (dataProvider.getCurrentPage() == 0) {
dataProvider.nextPage();
}
return dataProvider.getCurrentPageSize();
}
return 0;
}
protected void render(boolean refresh) {
if (refresh) {
clear();
}
int rowCount = getRowsToBeRendered();
for (int i = 0; i < rowCount; i++) {
T value = dataProvider.get();
if (value == null) {
throw new DataProviderExcpetion("Index error = " + i);
}
renderer.render(value);
if (dataProvider.hasNext()) {
dataProvider.next();
} else {
break;
}
}
updatePager();
}
public void reset(boolean reloadData) {
if (dataProvider != null) {
dataProvider.reset();
}
if (pager != null) {
pager.update(0, true);
}
if (reloadData) {
loadData();
}
}
protected void onTransactionCompleted(boolean commited) {
final int pageStartRecordOnTransactionEnd = dataProvider.getCurrentPageStartRecord();
transactionRunning = false;
updatePagerState();
Scheduler.get()
.scheduleDeferred(
new ScheduledCommand() {
@Override
public void execute() {
refreshPage(pageStartRecordOnTransactionEnd);
}
});
}
public void setPageSize(int pageSize) {
this.pageSize = pageSize;
if (dataProvider != null) {
dataProvider.setPageSize(pageSize);
}
}
protected void updatePager() {
if (isDataLoaded() && pager != null) {
pager.update(dataProvider.getCurrentPage(), !dataProvider.hasNextPage());
}
}
protected void refresh(boolean clearPreviousData) {
dataProvider.firstOnPage();
render(clearPreviousData);
}
public boolean isDirty() {
return dataProvider != null && dataProvider.isDirty();
}
public boolean isDataLoaded() {
return dataProvider != null && dataProvider.isLoaded();
}
public void rollback() {
if (dataProvider != null) {
dataProvider.rollback();
}
}
public void commit() {
if (dataProvider != null) {
dataProvider.commit();
}
}
public int indexOf(T object) {
if (dataProvider != null) {
return dataProvider.indexOf(object);
}
return -1;
}
public void set(int index, T object) {
if (dataProvider != null) {
dataProvider.set(index, object);
}
}
public void remove(int index) {
if (dataProvider != null) {
dataProvider.remove(index);
}
}
public void add(T object) {
if (dataProvider != null) {
dataProvider.add(object);
}
}
@Override
public void nextPage() {
if (isDataLoaded()) {
dataProvider.nextPage();
}
}
@Override
public void previousPage() {
if (isDataLoaded()) {
dataProvider.previousPage();
}
}
public void loadData() {
if (dataProvider != null) {
dataProvider.load();
}
}
