This tutorial covers adding validations to forms during submission using Validator interface from Spring. This is part of the Spring MVC tutorial series.
Package java.util.concurrent.atomic
A small toolkit of classes that support lock-free thread-safe
programming on single variables.
A small toolkit of classes that support lock-free thread-safe
programming on single variables. In essence, the classes in this
package extend the notion of volatile values, fields, and
array elements to those that also provide an atomic conditional update
operation of the form:
boolean compareAndSet(expectedValue, updateValue);
Atomic classes are not general purpose replacements for
java.lang.Integer and related classes. They do not
define methods such as hashCode and
compareTo. (Because atomic variables are expected to be
mutated, they are poor choices for hash table keys.)
The specifications of these methods enable implementations to
employ efficient machine-level atomic instructions that are available
on contemporary processors.
java.util.concurrent.atomic
Class AtomicInteger
java.lang.Object
java.lang.Number
java.util.concurrent.atomic.AtomicInteger
An int value that may be updated atomically. See the
java.util.concurrent.atomic package specification for
description of the properties of atomic variables. An
AtomicInteger is used in applications such as atomically
incremented counters, and cannot be used as a replacement for an
Integer. However, this class does extend
Number to allow uniform access by tools and utilities that
deal with numerically-based classes.
int
incrementAndGet()
Atomically increments by one the current value.
Package java.util.concurrent.atomic Description
A small toolkit of classes that support lock-free thread-safe programming on single variables. In essence, the classes in this package extend the notion of volatile values, fields, and array elements to those that also provide an atomic conditional update operation of the form:
boolean compareAndSet(expectedValue, updateValue);
"Alloy is a UI metaframework that provides a consistent and simple API for building web applications across all three levels of the browser: structure, style and behavior.
HTML
HTML5
Reusable markup patterns
Modular
CSS
CSS3
Built upon progressive enhancement
Framework for layout, forms and state interaction
JavaScript
Built on top of YUI3
Small core file size (9kb)
AutoComplete, Dialogs, Panels, Tabs, TreeView & more"
JSP Tutorial - Javatpoint website provides you a complete JSP tutorial with practical programming examples and easy steps using this beginner's tutorial containing basic to advanced knowledge of Java JSP Technology including Form Data, HTTP Request Header, Response Header, Scripting elements, Directive elements, Custom tags, Cookies Handling and Session Tracking.
Gistia is a Web Application Design and Development firm in Miami, Florida.We create modern web applications utilizing agile technologies such as Ruby on Rails, Django, Node.js and more. We believe the most successful web and mobile applications are conceived out of solid, well thought out strategy, elegant and well formed architecture, and beautiful, unique design.
SchemaCrawler is an open-source Java API that makes working with database metadata as easy as working with plain old Java objects.
SchemaCrawler is also a command-line tool to output your database schema and data in a readable form. The output is designed to be diff-ed with previous versions of your database schema.
Database Change Management
You never develop code without version control, why do you develop your database without it?
Liquibase is an open source (Apache 2.0 Licensed), database-independent library for tracking, managing and applying database changes. It is built on a simple premise: All database changes are stored in a human readable yet trackable form and checked into source control.
Liquibase Supports:
Extensibility
Merging changes from multiple developers
Code branches
Multiple Databases
Managing production data as well as various test datasets
Cluster-safe database upgrades
Automated updates or generation of SQL scripts that can be approved and applied by a DBA
Update rollbacks
Database "diff"s
Generating starting change logs from existing database
Inflector is a Java API for forming plurals of words. The library supports English spellings, and is locale-aware so it is straightforward to customize for any language.
"So, we are going to look at a restful webservice that is going to generate XML. As you might know, we have the perfect JSR specification for that in the form of JAXB. The needed libraries are already available in Netbeans 6.8. And as you might have guessed, returning JAXB objects from a JAX-RS method is going to integrate naturally and take some strain from our shoulders. No need to marshal and unmarshal by ourself. "
In this article, we are going to look at how the Activiti BPM engine can be used together with Vaadin. We are going to do this in the form of a case study of a demo application that is available on GitHub. The code is licensed under Apache License 2.0 and can freely be used as a foundation for your own applications.
Before continuing, you might want to check out this screencast of the demo application in action (HD quality is recommended):
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A package is a group of similar types of classes, interfaces and sub-packages. Package can be categorized in two form, built-in package and user-defined package. There are many built-in packages such as java, lang, awt, javax, swing, net, io, util, sql etc. Here, we will have the detailed learning of creating and using user-defined packages.
While you need basic functionalities, everything is fine. When you need to modify the component (which is configurable, right?) you are facing the problems
EXTREMELY idiotic thing - because JSF has their famous lifecycle with lots of magic phases, some backing bean getters are called multiple times!
Back button problem.
Unreadable URLs. JSF always does the POST.
JSF is submitting a form on itself so it could call a backing bean method to handle an event. Of course, if you have a request, there is unnecessary repeated initialization, getter calls, postconstruct etc
Reusability? Good joke…
JSF - you are FIRED!
IDE support
Development of custom component? No way, extremely complicated. Extensible? In the movie, maybe…
Tyranny of the Common Form. The social costs of getting everyone to agree to the definition of these central models always outweigh the technical costs
of implementing them.