Tutorial by Examples: s

NHibernate uses classes to map into tables or views. Creating a Plain Old CLR Object (POCOs, sometimes called Plain Ordinary CLR Objects) is a good practice for persistent classes. A POCO has its data accessible through the standard .NET property mechanisms, shielding the internal representation fro...

The xml mapping uses a hbm.xml file which is a hibernate mapping file. It is a syntax xml file which contains the metadata required for the object/relational mapping. The metadata includes declaration of persistent classes and the mapping of properties (to columns and foreign key relationships to ot...

The Fluent NHibernate is a library to help you to map the entities using C# code instead of xml mappings. Fluent NHibernate uses the fluent pattern and it is based on conventions to create the mappings and it gives you the power of the visual studio tools (such as intellisense) to improve the way yo...

IQueryable<Cat> cats = session.Query<Cat>() .Where(c => c.Name == "Max");

Also known as bogosort. import Data.List (permutations) sorted :: Ord a => [a] -> Bool sorted (x:y:xs) = x <= y && sorted (y:xs) sorted _ = True psort :: Ord a => [a] -> [a] psort = head . filter sorted . permutations Extremely inefficient (on today's compu...

A basic QueryOver query is performed against an ISession using the QueryOver<T> method, where T is the type of a mapped entity. IList<Customer> customers = session.QueryOver<Customer>() .Where(c => c.LastName == "Simpson") .List();

Show a "Hello World!" in message box. MsgBox, Hello World! Show "Hello World!" stored in variable MyString in message box. MyString := "Hello World!" MsgBox, %MyString% Show a "Hello World!" in tooltip. #Persistent Tooltip, Hello World! Show a &q...

In the logging configuration file of your choice set the logging of the following packages to the levels shown.: # log the sql statement org.hibernate.SQL=DEBUG # log the parameters org.hibernate.type=TRACE There will probably be some logger specific prefixes that are required. Log4j config:...

This will show you the generated SQL, but will not show you the values contained within the queries. <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean"> <property name="hibernateProperties"> <p...

Pattern matching can also be used to check the type of an instance, rather than using isInstanceOf[B]: val anyRef: AnyRef = "" anyRef match { case _: Number => "It is a number" case _: String => "I...

The [ and [[ operators are primitive functions that are generic. This means that any object in R (specifically isTRUE(is.object(x)) --i.e. has an explicit "class" attribute) can have its own specified behaviour when subsetted; i.e. has its own methods for [ and/or [[. For example, this is...

This operator checks whether the object is of a particular class/interface type. instanceof operator is written as: ( Object reference variable ) instanceof (class/interface type) Example: public class Test { public static void main(String args[]){ String name = "Buyya";...

The left hand operand for these operators must be a either a non-final variable or an element of an array. The right hand operand must be assignment compatible with the left hand operand. This means that either the types must be the same, or the right operand type must be convertible to the left o...

Lazy evaluation means Haskell will evaluate only list items whose values are needed. The basic recursive definition is: f (0) <- 0 f (1) <- 1 f (n) <- f (n-1) + f (n-2) If evaluated directly, it will be very slow. But, imagine we have a list that records all the results, fibs ...

First, instantiate a Toast object with one of the MakeText() methods. This method takes three parameters: the application Context, the text message, and the duration for the toast. It returns a properly initialized Toast object. You can display the toast notification with Show(), as shown in the fol...

The R-Logo is a multilayer raster file (red, green, blue) library(raster) r <- stack("C:/Program Files/R/R-3.2.3/doc/html/logo.jpg") plot(r) The individual layers of the RasterStack object can be adressed by [[. plot(r[[1]])

Behavior Driven Development (BDD) testing style revolves around "given", "when" and "then" stages in tests. However, classical Mockito uses "when" word for "given" phase, and does not include other natural language constructions that can encompass B...

// static: is callable on a class even when no instance of the class has been created public static void MyMethod() // virtual: can be called or overridden in an inherited class public virtual void MyMethod() // internal: access is limited within the current assembly internal void MyMetho...

Selection sort selects the minimum element, repeatedly, until the list is empty. import Data.List (minimum, delete) ssort :: Ord t => [t] -> [t] ssort [] = [] ssort xs = let { x = minimum xs } in x : ssort (delete x xs)

with clause is used to combine matching clauses. It looks like we combine anonymous functions or handle function with multiple bodies (matching clauses). Consider the case: we create a user, insert it into DB, then create greet email and then send it to the user. Without the with clause we might ...