vaadin-app: instanciate Property abscract class

1 files changed, 40 insertions, 0 deletions

diff --git a/vaadin-app/src/ch/asynk/helloworld/HelloWorldApp.java b/vaadin-app/src/ch/asynk/helloworld/HelloWorldApp.java
index e69967d..bf48c5b 100644
--- a/vaadin-app/src/ch/asynk/helloworld/HelloWorldApp.java
+++ b/vaadin-app/src/ch/asynk/helloworld/HelloWorldApp.java
@@ -69,6 +69,46 @@ class DataMappingLayout extends FormLayout {
             }
         });
         //
+        class IntegerObjectProperty implements Property {
+            Integer data = 0;
+            boolean readOnly = false;
+            public Class<?> getType() {
+                return Integer.class;
+            }
+            public Object getValue() {
+                return data;
+            }
+            public boolean isReadOnly() {
+                return readOnly;
+            }
+            public void setReadOnly(boolean newStatus) {
+                readOnly = newStatus;
+            }
+            public void setValue(Object newValue) throws ReadOnlyException, ConversionException {
+                if (readOnly)
+                    throw new ReadOnlyException();
+                if (newValue instanceof Integer)
+                    data = (Integer) newValue;
+                else if (newValue instanceof String)
+                    try {
+                        data = Integer.parseInt((String) newValue, 16);
+                    } catch (NumberFormatException e) {
+                        throw new ConversionException("Must be an integer (from property)");
+                    }
+                else
+                    throw new ConversionException("Unknown entry type (from property)");
+            }
+            @Override
+            public String toString() {
+                return Integer.toHexString(data)+" (hex)";
+            }
+        };
+        final IntegerObjectProperty intProperty = new IntegerObjectProperty();
+        intProperty.setValue(666);
+        final TextField tf4 = new TextField("MyObjectProperty",intProperty);
+        tf4.setImmediate(true);
+        addComponent(tf4);
+        //
         Button closeButton = new Button("close the application");
         closeButton.setDescription("This will close the application");
         addComponent(closeButton );