Luca Zanini – Page 19

PropertyEditors in Spring 3

Oct 21, 2012

—

by

Luca Zanini

in Java

PropertyEditor is an interface that provides a support for the conversion of the value of a property (usually of type String) in an object that can be Date, URL, etc.
Read more: PropertyEditors in Spring 3
Overriding the equals() and hashCode() methods

Oct 14, 2012

—

by

Luca Zanini

in Java

The equals() method is inherited from the superclass Object and determines if two instances are equal or equivalent. Usually this method should be overridden because the equals() method of the Object class is equivalent to the operator ==, which returns true if and only if the two references refer to the same object.
Read more: Overriding the equals() and hashCode() methods
The merge tag

Oct 7, 2012

—

by

Luca Zanini

in Android

The merge tag allows you to avoid an unnecessary use of nested layouts when you use the include tag.
Read more: The merge tag
Displaying errors in xpages

Oct 1, 2012

—

by

Luca Zanini

in Lotus

During the development of a lotus application with XPages is very useful to show the runtime errors on the XPages, to enable this feature check the “Display XPage runtime error page” under the tab XPages in Application Properties as shown below:
Read more: Displaying errors in xpages
Executing code on the creation or destruction of a bean in Spring

Sep 30, 2012

—

by

Luca Zanini

in Java

There are 3 ways to execute code to create a bean in Spring: with the annotation @PostConstruct implementing the interface InitializingBean configuring the property init-method The reason why you run code when you create a bean is often to check the dependencies, and assign a default value, or automated actions such as starting a scheduled…
Read more: Executing code on the creation or destruction of a bean in Spring
Tabs and swipe views

Sep 23, 2012

—

by

Luca Zanini

in Android

In the post Tab Layout in Android with ActionBar and Fragment I explain how to implement tabs and in the post Swipe views I explain how to implement the swipe views or scrolling tabs using the ViewPager of the Compatibility Package. In this post I explain how to implement 3 tabs that look like those…
Read more: Tabs and swipe views
The Comparator interface

Sep 16, 2012

—

by

Luca Zanini

in Java

In the previous post about the Comparable interface I explained how you can extend a class of objects that implement the Comparable interface and then order them in a list according to the logic defined in the overridden method compareTo. If you want to be able to sort the list according to a number of…
Read more: The Comparator interface
The Comparable interface

Sep 12, 2012

—

by

Luca Zanini

in Java

A List contains objects that you can order according to a natural order using the static method Collections.sort(List list) if the objects implement the Comparable interface.
Read more: The Comparable interface
Lotus designer client slow

Sep 10, 2012

—

by

Luca Zanini

in Lotus

If your lotus designer client is slow opening design elements, try to exclude the lotus directory from the antivirus scan in real time.
Read more: Lotus designer client slow
Swipe views

Sep 9, 2012

—

by

Luca Zanini

in Android

In a previous post I implemented a layout with 2 tabs using an action bar and fragments; the disadvantage of this layout is that dragging horizzontally the views in a similar way to Google Play would be very natural for the user. In Horizontal View Swiping with ViewPager you can see how to get this…
Read more: Swipe views