Tutorial by Examples: t

<bean id="managedCamel" class="com.pubSub.example.ManagedCamel" > <constructor-arg name="routes"> <list> <ref bean="redisPublisher"/> </list> </constructor-arg> </bean> <...

By Creating Custom Progress Dialog class, the dialog can be used to show in UI instance, without recreating the dialog. First Create a Custom Progress Dialog Class. CustomProgress.java public class CustomProgress { public static CustomProgress customProgress = null; private Dialog m...

All instances (objects) of an entity class can be loaded from the underlying database table as follows (akin to retrieving all rows from the table): Iterable<Foo> foos = fooRepository.findAll(); The findAll method is provided by the CrudRepository interface. It returns an Iterable instead ...

A particular instance of an entity class can be loaded as follows: Foo foo = fooRepository.findOne(id); The findOne method is provided by the CrudRepository interface. It expects an identifier that uniquely identifies an entity instance (for instance, a primary key in a database table). The Java...

All instances of an entity class with one of the class attributes matching a specified value can be retrieved as follows: public interface FooRepository extends CrudRepository<Foo, Long> { List<Foo> findAllByName(String name); } Invoking the findAllByName method results in the JP...

node_redis, as you may have guessed, is the Redis client for Node.js. You can install it via npm using the following command. npm install redis Once you have installed node_redis module you are good to go. Let’s create a simple file, app.js, and see how to connect with Redis from Node.js. app...

Now that you know how to connect with Redis from Node.js, let’s see how to store key-value pairs in Redis storage. Storing Strings All the Redis commands are exposed as different functions on the client object. To store a simple string use the following syntax: client.set('framework', 'Angula...

Checking the Existence of Keys Sometimes you may need to check if a key already exists and proceed accordingly. To do so you can use exists() function as shown below: client.exists('key', function(err, reply) { if (reply === 1) { console.log('exists'); } else { cons...

ICU(International Components for Unicode) can be installed as a library for the following languages: Java: ICU4J C/C++: ICU4C Python: pyICU Perl: Wrappers for ICU (PICU) C#: ICU-dotnet Erlang: icu4e Ruby: ffi-icu Haskell: text-icu Lua: ICU4Lua Here is a series of installion steps for a...

The symbols [ ] { } ^ \ | ~ # are frequently used in C programs, but in the late 1980s, there were code sets in use (ISO 646 variants, for example, in Scandinavian countries) where the ASCII character positions for these were used for national language variant characters (e.g. £ for # in the UK; Æ ...

Here i am going to explain the ajax custom pagination in cakephp 3.2. This one is easier to use and understandable. Do this code inside any function and any controller you need. Make an ajax call for the pagination <script type="text/javascript"> $(document).ready(function ()...

Let's assume the following scenario: You have two stylesheets: _variables.scss and layout.scss. Logically, you keep all your variables inside your variable stylesheet but want to access them from your layout stylesheet. NOTE: You may notice that the variables stylesheet has an underscore ('_') be...

Azure SQL Database has different editions and performance tiers. You can find version, edition (basic, standard, or premium), and service objective (S0,S1,P4,P11, etc.) of SQL Database that is running as a service in Azure using the following statements: select @@version SELECT DATABASEPROPERTYEX...

You can scale-up or scale-down Azure SQL database using ALTER DATABASE statement: ALTER DATABASE WWI MODIFY (SERVICE_OBJECTIVE = 'P6') -- or ALTER DATABASE CURRENT MODIFY (SERVICE_OBJECTIVE = 'P2') If you try to change service level while changing service level of the current database is sti...

You can create a secondary replica of database with the same name on another Azure SQL Server, making the local database primary, and begins asynchronously replicating data from the primary to the new secondary. ALTER DATABASE <<mydb>> ADD SECONDARY ON SERVER <<secondaryserver&gt...

You can put your azure SQL Database in SQL elastic pool: CREATE DATABASE wwi ( SERVICE_OBJECTIVE = ELASTIC_POOL ( name = mypool1 ) ) You can create copy of an existing database and place it in some elastic pool: CREATE DATABASE wwi AS COPY OF myserver.WideWorldImporters ( SERVICE_OBJECTIV...

An instantiation error is thrown if an argument is not sufficiently instantiated. Critically, an instantiation error cannot be replaced by silent failure: Failing in such cases would mean that there is no solution, whereas an instantiation error means that an instance of the argument may participat...

Prolog features exceptions, which are part of the Prolog ISO standard. An exception can be thrown with throw/1, and caught with catch/3. The ISO standard defines many cases in which errors must or may be thrown. The standardized exceptions are all of the form error(E,_), where E indicates the erro...

The predicate setup_call_cleanup/3, which is currently being considered for inclusion in the Prolog ISO standard and provided by an increasing number of implementations, lets us ensure that resources are correctly freed after an exception is thrown. A typical invocation is: setup_call_cleanup(open...

A type error occurs if an argument is not of the expected type. Examples of types are: integer atom list. If the predicate is of the expected type, but outside the expected domain, then a domain error is raised. For example, a domain error is admissible if an integer between 0 and 15 is exp...