232 lines
8.3 KiB
Java
232 lines
8.3 KiB
Java
/**
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*
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*/
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package org.gcube.portlets.user.sdmxexportwizardtd.client;
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import java.util.Arrays;
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import java.util.List;
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import org.gcube.portlets.user.sdmxexportwizardtd.client.dataresource.ResourceBundle;
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import org.gcube.portlets.user.sdmxexportwizardtd.client.rpc.SDMXExportWizardServiceAsync;
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import org.gcube.portlets.user.sdmxexportwizardtd.shared.Codelist;
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import com.allen_sauer.gwt.log.client.Log;
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import com.google.gwt.core.client.GWT;
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import com.google.gwt.core.client.Scheduler;
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import com.google.gwt.core.client.Scheduler.ScheduledCommand;
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import com.google.gwt.event.dom.client.KeyUpEvent;
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import com.google.gwt.event.dom.client.KeyUpHandler;
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import com.google.gwt.event.logical.shared.HasSelectionHandlers;
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import com.google.gwt.event.logical.shared.SelectionHandler;
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import com.google.gwt.event.shared.HandlerRegistration;
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import com.google.gwt.user.client.rpc.AsyncCallback;
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import com.sencha.gxt.core.client.IdentityValueProvider;
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import com.sencha.gxt.core.client.Style.SelectionMode;
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import com.sencha.gxt.data.client.loader.RpcProxy;
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import com.sencha.gxt.data.shared.ListStore;
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import com.sencha.gxt.data.shared.ModelKeyProvider;
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import com.sencha.gxt.data.shared.Store;
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import com.sencha.gxt.data.shared.Store.StoreFilter;
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import com.sencha.gxt.data.shared.loader.ListLoadConfig;
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import com.sencha.gxt.data.shared.loader.ListLoadResult;
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import com.sencha.gxt.data.shared.loader.ListLoadResultBean;
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import com.sencha.gxt.data.shared.loader.ListLoader;
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import com.sencha.gxt.data.shared.loader.LoadResultListStoreBinding;
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import com.sencha.gxt.widget.core.client.ContentPanel;
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import com.sencha.gxt.widget.core.client.Resizable;
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import com.sencha.gxt.widget.core.client.Resizable.Dir;
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import com.sencha.gxt.widget.core.client.button.TextButton;
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import com.sencha.gxt.widget.core.client.container.VerticalLayoutContainer;
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import com.sencha.gxt.widget.core.client.container.VerticalLayoutContainer.VerticalLayoutData;
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import com.sencha.gxt.widget.core.client.event.SelectEvent;
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import com.sencha.gxt.widget.core.client.event.SelectEvent.SelectHandler;
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import com.sencha.gxt.widget.core.client.form.TextField;
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import com.sencha.gxt.widget.core.client.grid.CheckBoxSelectionModel;
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import com.sencha.gxt.widget.core.client.grid.ColumnConfig;
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import com.sencha.gxt.widget.core.client.grid.ColumnModel;
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import com.sencha.gxt.widget.core.client.grid.Grid;
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import com.sencha.gxt.widget.core.client.toolbar.LabelToolItem;
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import com.sencha.gxt.widget.core.client.toolbar.ToolBar;
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/**
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*
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* @author "Giancarlo Panichi"
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* <a href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
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*
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*/
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public class CodelistSelectionPanel extends ContentPanel implements HasSelectionHandlers<Codelist> {
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private static final CodelistProperties properties = GWT.create(CodelistProperties.class);
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protected static final ColumnConfig<Codelist, String> nameColumn = new ColumnConfig<Codelist, String>(properties.name(), 50, "Name");
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protected static final ColumnConfig<Codelist, String> agencyIdColumn = new ColumnConfig<Codelist, String>(properties.agencyId(), 50, "Agency Id");
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protected static final ColumnConfig<Codelist, String> versionColumn = new ColumnConfig<Codelist, String>(properties.version(), 50, "Version");
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protected static final ColumnConfig<Codelist, String> descriptionColumn = new ColumnConfig<Codelist, String>(properties.description(), 50, "Description");
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protected Grid<Codelist> grid;
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protected ResourceBundle res;
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@SuppressWarnings("unchecked")
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public CodelistSelectionPanel(ResourceBundle res)
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{
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this.res=res;
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setHeaderVisible(false);
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new Resizable(this, Dir.E, Dir.SE, Dir.S);
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buildPanel(properties.key(), Arrays.<ColumnConfig<Codelist, ?>>asList(nameColumn, agencyIdColumn, versionColumn, descriptionColumn), nameColumn);
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}
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protected void buildPanel(ModelKeyProvider<Codelist> keyProvider, List<ColumnConfig<Codelist, ?>> columns, ColumnConfig<Codelist, ?> autoexpandColumn)
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{
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ToolBar toolBar = new ToolBar();
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toolBar.add(new LabelToolItem("Search: "));
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final TextField searchField = new TextField();
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toolBar.add(searchField);
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TextButton btnReload = new TextButton();
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//btnReload.setText("Reload");
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btnReload.setIcon(res.refresh_16());
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btnReload.setToolTip("Reload");
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toolBar.add(btnReload);
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IdentityValueProvider<Codelist> identity = new IdentityValueProvider<Codelist>();
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final CheckBoxSelectionModel<Codelist> sm = new CheckBoxSelectionModel<Codelist>(identity);
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ColumnModel<Codelist> cm = new ColumnModel<Codelist>(columns);
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final ExtendedListStore<Codelist> store = new ExtendedListStore<Codelist>(keyProvider);
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searchField.addKeyUpHandler(new KeyUpHandler() {
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@Override
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public void onKeyUp(KeyUpEvent event) {
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Log.trace("searchTerm: "+searchField.getCurrentValue());
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store.applyFilters();
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}
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});
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store.addFilter(new StoreFilter<Codelist>() {
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@Override
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public boolean select(Store<Codelist> store, Codelist parent, Codelist item) {
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String searchTerm = searchField.getCurrentValue();
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if (searchTerm == null) return true;
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return CodelistSelectionPanel.this.select(item, searchTerm);
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}
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});
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store.setEnableFilters(true);
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RpcProxy<ListLoadConfig, ListLoadResult<Codelist>> proxy = new RpcProxy<ListLoadConfig, ListLoadResult<Codelist>>() {
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public void load(ListLoadConfig loadConfig, final AsyncCallback<ListLoadResult<Codelist>> callback) {
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loadData(loadConfig, callback);
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}
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};
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final ListLoader<ListLoadConfig, ListLoadResult<Codelist>> loader = new ListLoader<ListLoadConfig, ListLoadResult<Codelist>>(proxy);
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loader.setRemoteSort(false);
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loader.addLoadHandler(new LoadResultListStoreBinding<ListLoadConfig, Codelist, ListLoadResult<Codelist>>(store));
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grid = new Grid<Codelist>(store, cm){
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@Override
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protected void onAfterFirstAttach() {
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super.onAfterFirstAttach();
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Scheduler.get().scheduleDeferred(new ScheduledCommand() {
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@Override
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public void execute() {
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loader.load();
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}
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});
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}
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};
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sm.setSelectionMode(SelectionMode.SINGLE);
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grid.setLoader(loader);
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grid.setSelectionModel(sm);
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grid.getView().setAutoExpandColumn(autoexpandColumn);
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grid.getView().setStripeRows(true);
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grid.getView().setColumnLines(true);
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grid.getView().setAutoFill(true);
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grid.setBorders(false);
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grid.setLoadMask(true);
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grid.setColumnReordering(true);
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SelectHandler sh = new SelectHandler() {
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@Override
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public void onSelect(SelectEvent event) {
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loader.load();
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}
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};
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btnReload.addSelectHandler(sh);
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VerticalLayoutContainer con = new VerticalLayoutContainer();
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con.add(toolBar, new VerticalLayoutData(1, -1));
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con.add(grid, new VerticalLayoutData(1, 1));
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setWidget(con);
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}
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protected boolean select(Codelist item, String searchTerm) {
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if (item.getName()!=null && item.getName().toLowerCase().contains(searchTerm.toLowerCase())) return true;
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if (item.getAgencyId()!=null &&item.getAgencyId().toLowerCase().contains(searchTerm.toLowerCase())) return true;
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if (item.getVersion()!=null && item.getVersion().toLowerCase().contains(searchTerm.toLowerCase())) return true;
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if (item.getDescription()!=null && item.getDescription().toLowerCase().contains(searchTerm.toLowerCase())) return true;
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if (item.getId()!=null &&item.getId().toLowerCase().contains(searchTerm.toLowerCase())) return true;
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return false;
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}
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protected void loadData(ListLoadConfig loadConfig, final AsyncCallback<ListLoadResult<Codelist>> callback) {
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SDMXExportWizardServiceAsync.INSTANCE.getCodelists(new AsyncCallback<List<Codelist>>() {
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@Override
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public void onFailure(Throwable caught) {
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callback.onFailure(caught);
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}
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@Override
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public void onSuccess(List<Codelist> result) {
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Log.trace("loaded "+result.size()+" codelists");
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callback.onSuccess(new ListLoadResultBean<Codelist>(result));
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}
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});
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}
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@Override
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public HandlerRegistration addSelectionHandler(SelectionHandler<Codelist> handler) {
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return grid.getSelectionModel().addSelectionHandler(handler);
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}
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/*public List<Codelist> getSelectedItems() {
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return grid.getSelectionModel().getSelectedItems();
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}*/
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public Codelist getSelectedItem() {
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return grid.getSelectionModel().getSelectedItem();
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}
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protected class ExtendedListStore<M> extends ListStore<M> {
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public ExtendedListStore(ModelKeyProvider<? super M> keyProvider) {
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super(keyProvider);
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}
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public void applyFilters()
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{
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super.applyFilters();
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}
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}
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}
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