Java Store类代码示例

import com.extjs.gxt.ui.client.store.Store; //导入依赖的package包/类
private static StoreSorter<FileDTO> getStoreSorter() {
	if(storeSorter == null) {
		storeSorter = new StoreSorter<FileDTO>() {

			@Override
			public int compare(Store<FileDTO> store, FileDTO m1, FileDTO m2, String property) {
				final FileVersionDTO last1 = m1.getLastVersion();
				final FileVersionDTO last2 = m2.getLastVersion();

				if (FileDTO.DATE.equals(property)) {
					return last1.getAddedDate().compareTo(last2.getAddedDate());

				} else if (FileDTO.AUTHOR.equals(property)) {
					final String authorM1 = last1.getAuthorFirstName() != null ? last1.getAuthorFirstName() + " " + last1.getAuthorName() : last1.getAuthorName();
					final String authorM2 = last2.getAuthorFirstName() != null ? last2.getAuthorFirstName() + " " + last2.getAuthorName() : last2.getAuthorName();

					return authorM1.compareTo(authorM2);

				} else if (FileDTO.VERSION.equals(property)) {
					return Integer.valueOf(last1.getVersionNumber()).compareTo(last2.getVersionNumber());

				} else if (FileDTO.NAME.equals(property)) {
					final String title1 = last1.getName() + '.' + last1.getExtension();
					final String title2 = last2.getName() + '.' + last2.getExtension();

					return title1.compareTo(title2);
				}

				else {
					return super.compare(store, m1, m2, property);
				}
			}
		};
	}
	
	return storeSorter;
}
 

import com.extjs.gxt.ui.client.store.Store; //导入依赖的package包/类
@Override
public void handleEvent(StoreEvent<ContactDTO> e) {
  EventType type = e.getType();
  if (type == Store.BeforeAdd) {
    storeBeforeAdd(e);
  } else if (type == Store.Add) {
    storeAdd(e);
  } else if (type == Store.BeforeClear) {
    storeBeforeClear();
  } else if (type == Store.Clear) {
    storeClear();
  } if (type == Store.Remove) {
    storeRemove(e);
  }
}
 

import com.extjs.gxt.ui.client.store.Store; //导入依赖的package包/类
public static void save(DispatchAsync dispatcher, final Store<? extends ModelData> store, Component component) {
	dispatcher.execute(createUpdateCommand(store), new CommandResultHandler<ListResult<Result>>() {

		@Override
		protected void onCommandSuccess(ListResult<Result> result) {
			store.commitChanges();
		}
	}, new LoadingMask(component, I18N.CONSTANTS.saving()));	
}
 

import com.extjs.gxt.ui.client.store.Store; //导入依赖的package包/类
public static BatchCommand createUpdateCommand(Store<? extends ModelData> store) {
BatchCommand batch = new BatchCommand();
for (Record record : store.getModifiedRecords()) {
	if(record.getModel() instanceof EntityDTO) {
		EntityDTO entity = (EntityDTO) record.getModel();
		batch.add(new UpdateEntity(entity, getChangedProperties(record)));
		
	}
}
return batch;
  }
 

import com.extjs.gxt.ui.client.store.Store; //导入依赖的package包/类
public CommitChangeLogAction(Store<ChangeItem> store) {
	this.store = store;
}
 

import com.extjs.gxt.ui.client.store.Store; //导入依赖的package包/类
@Override
protected abstract boolean doSelect(Store<T> store, T parent, T record, String property,
        String filter);
 

import com.extjs.gxt.ui.client.store.Store; //导入依赖的package包/类
private Runnable prepareAfterGetContacts(ContentPanel mainPanel, final ListStore<ContactDTO> store) {
  Runnable afterGetContacts;
  final ToolBar actionsToolBar = new ToolBar();
  actionsToolBar.setAlignment(HorizontalAlignment.LEFT);

  actionsToolBar.add(Forms.button(I18N.CONSTANTS.addItem(), IconImageBundle.ICONS.add(), new SelectionListener<ButtonEvent>() {
    @Override
    public void componentSelected(ButtonEvent ce) {
      showContactSelector(store);
    }
  }));

  final Label offlineLabel = new Label(I18N.CONSTANTS.sigmahContactsOfflineUnavailable());
  actionsToolBar.add(offlineLabel);

  mainPanel.setTopComponent(actionsToolBar);

  // if offline mode, no contact can be used
  actionsToolBar.setEnabled(!Profiler.INSTANCE.isOfflineMode());
  offlineLabel.setVisible(Profiler.INSTANCE.isOfflineMode());
  if (eventBus != null) {
    eventBus.addHandler(OfflineEvent.getType(), new OfflineHandler() {
      @Override
      public void handleEvent(OfflineEvent event) {
        final boolean isOffline = ApplicationState.OFFLINE == event.getState();
        actionsToolBar.setEnabled(!isOffline && !isReadOnly(store));
        offlineLabel.setVisible(isOffline);
      }
    });
  }

  final Listener<StoreEvent<ContactDTO>> listener = new ContactStoreEventListener(store, actionsToolBar);

  afterGetContacts = new Runnable() {
    @Override
    public void run() {
      actionsToolBar.setEnabled(!Profiler.INSTANCE.isOfflineMode() && !isReadOnly(store));

      store.addListener(Store.BeforeAdd, listener);
      store.addListener(Store.Add, listener);
      store.addListener(Store.BeforeClear, listener);
      store.addListener(Store.Clear, listener);
      store.addListener(Store.Remove, listener);

      handlerManager.fireEvent(new RequiredValueEvent(store.getCount() > 0, true));
    }
  };
  return afterGetContacts;
}
 

import com.extjs.gxt.ui.client.store.Store; //导入依赖的package包/类
public FilterSelectionListener(final Store<E> store) {
	this.store = store;
}
 

import com.extjs.gxt.ui.client.store.Store; //导入依赖的package包/类
public Store<PivotTableRow> getStore() {
	return store;
}
 

import com.extjs.gxt.ui.client.store.Store; //导入依赖的package包/类
/**
 * Sets-up the grid filters.
 */
private void addFilters() {

	// --
	// The filter by model type.
	// --

	view.getStore().addFilter(new StoreFilter<ProjectDTO>() {

		@Override
		public boolean select(Store<ProjectDTO> store, ProjectDTO parent, ProjectDTO item, String property) {

			boolean selected = false;

			// Root item.
			if (item.getParent() == null) {
				// A root item is filtered if its type doesn't match the current type.
				selected = item.getVisibility(auth().getOrganizationId()) == currentModelType;
			}
			// Child item
			else {
				// A child item is filtered if its parent is filtered.
				selected = ((ProjectDTO) item.getParent()).getVisibility(auth().getOrganizationId()) == currentModelType;
			}

			return selected;
		}
	});

	// --
	// Refresh button selection listener.
	// --

	view.getRefreshButton().addSelectionListener(new SelectionListener<ButtonEvent>() {

		@Override
		public void componentSelected(ButtonEvent ce) {
			// Explicit refresh.
			refreshProjectGrid(command);
		}
	});

	// --
	// Filters aren't used for the moment.
	// --

	view.getFilterButton().setVisible(false);
}