Added filter

Alejandro Duarte · Alejandro Duarte · commit deb902ebbcff · 2016-08-25T15:50:20.000+03:00
diff --git a/src/main/java/my/vaadin/app/MyUI.java b/src/main/java/my/vaadin/app/MyUI.java
@@ -5,9 +5,11 @@
 import com.vaadin.annotations.Theme;
 import com.vaadin.annotations.VaadinServletConfiguration;
 import com.vaadin.data.util.BeanItemContainer;
+import com.vaadin.server.FontAwesome;
 import com.vaadin.server.VaadinRequest;
 import com.vaadin.server.VaadinServlet;
 import com.vaadin.ui.*;
+import com.vaadin.ui.themes.ValoTheme;
 
 import java.util.List;
 
@@ -23,24 +25,42 @@ public class MyUI extends UI {
 
     private CustomerService service = CustomerService.getInstance();
     private Grid grid = new Grid();
+    private TextField filterText = new TextField();
 
     @Override
     protected void init(VaadinRequest vaadinRequest) {
         final VerticalLayout layout = new VerticalLayout();
 
+        filterText.setInputPrompt("filter by name...");
+        filterText.addTextChangeListener(e -> {
+            grid.setContainerDataSource(new BeanItemContainer<>(Customer.class, service.findAll(e.getText())));
+        });
+
+        Button clearFilterTextBtn = new Button(FontAwesome.TIMES);
+        clearFilterTextBtn.setDescription("Clear the current filter");
+        clearFilterTextBtn.addClickListener(e -> {
+            filterText.clear();
+            updateList();
+        });
+
+        CssLayout filtering = new CssLayout();
+        filtering.addComponents(filterText, clearFilterTextBtn);
+        filtering.setStyleName(ValoTheme.LAYOUT_COMPONENT_GROUP);
+
         grid.setColumns("firstName", "lastName", "email");
-        // add Grid to the layout
-        layout.addComponents(grid);
+        // add the filter and the Grid to the layout
+        layout.addComponents(filtering, grid);
 
         updateList();
 
         layout.setMargin(true);
+        layout.setSpacing(true);
         setContent(layout);
     }
 
     public void updateList() {
         // fetch list of Customers from service and assign it to Grid
-        List<Customer> customers = service.findAll();
+        List<Customer> customers = service.findAll(filterText.getValue());
         grid.setContainerDataSource(new BeanItemContainer<>(Customer.class, customers));
     }
 
