All Code related to Blogpost on Forms with Vaadin

VaadinForm-1.java

@NotBlank(message = "Employee should have a name")
private String name;

@NotBlank(message = "Select a Dept from the drop down")
private String dept;

private String city;

private boolean isPermanentEmployee;

@NotNull(message = "Date of birth cannot be empty")
// TODO create a new constraint for
private Date dateOfBirth;

//other fields
//Getter & Setters

VaadinForm-2.java

 // Method 1
  TextField textField = fieldGroup.buildAndBind(caption, bindName, TextField.class);
  //Configure other properties

 //Method 2
 TextField textField = new TextField("Name");
 fieldGroup.bind(textField, bindName);

VaadinForm-3.java

try {

	fieldGroup.commit();

} catch (CommitException e) {
        // Get all in valid fields and make validation messages visisble
	Map<Field<?>, InvalidValueException> invalidFields = e.getInvalidFields();
	// TODO handle it in a better way
	for (Map.Entry<Field<?>, InvalidValueException> invalidField : invalidFields.entrySet()) {

		((AbstractField<?>) invalidField.getKey()).setValidationVisible(true);

	}
	if (invalidFields.isEmpty()) {
		// TODO Handle this error
		e.printStackTrace();
		Notification.show("Save failed, Please try again");
	}

}

			

VaadinForm-4.java

fieldGroup.addCommitHandler(new CommitHandler() {

	/**
	 * 
	 */
	private static final long serialVersionUID = 2695561987381248384L;

	@Override
	public void preCommit(CommitEvent commitEvent) throws CommitException {
		// Check for validations
		fieldGroup.isValid();

	}

	@Override
	public void postCommit(CommitEvent commitEvent) throws CommitException {
		//TODO save the bean to the database or any other ops
		Employee bean = fieldGroup.getItemDataSource().getBean();
		Notification.show("Record with Name "+bean.getName()+"  was saved Successfully");
	}
});

VaadinForm-5.java

//Sets the datasource to the FieldGroup which then shows the values 
// in the form automcatically 
fieldGroup.setItemDataSource(employee);