beginning c from novice to professional pdf

... Default Description will affect the linked relation should apply collection-type The name of a UserCollectionType class describ-ing the collection type to be used in place of thedefaults for schema ... database view Trang 4The set CollectionA set collection allows collection attributes derived from the Set interface to be persisted In addition to the common collection mappings, the <set> ... these circumstances, there is very little difference between a one-to-one relationshipand a one-to-many relationship, except from a business perspective That is to say, we choosenot to associate

Ngày tải lên: 09/08/2014, 14:20

... 3-24, we create Category objects via the CategoryDAO class—and again we drawthe specific details from the command line provided by the Ant script Listing 3-24.The Class to Create the Example Categories ... how to acquire the Hibernate tools, how to create and run the example from Chapter 1, and how to create a slightly larger application from scratch, driv-ing the database table generation from ... objects from Hibernate Introduction to the Life Cycle After adding Hibernate to your application, you do not need to change your existing Java object model to add persistence marker interfaces

Ngày tải lên: 09/08/2014, 14:20

... you want to declare your mappings inline with your source code, but cannot use a Java 5 ment, the XDoclet tool allows you to use javadoc-style comments to achieve a similar effect XDoclet can beobtained ... single catalog entry—should not necessarily cause the stocked item to be deleted from the database entirely! It would be awkward to manage the appropriate cascading rules from code alone, socascading ... to the object model, operations on some objects should cascade through to related objects For example, deleting a stocked item should perhaps cause any associated catalog entries to be deleted

Ngày tải lên: 09/08/2014, 14:20

... the batch size for a query to be specified Cache T, M, and F Allows a cache concurrency strategy (NONE, NONSTRICT_READ_WRITE, READ_ONLY, READ_WRITE, orTRANSACTIONAL) to be selected Cascade M ... Hibernate-specific cascade strategy to an association Check T, M, and F Allows an arbitrary SQL constraint to be specified during the schema generation CollectionOfElements M and F Allows a collection ... various classes derived from it are Such a class can be abstract or concrete The @MappedSuperclass annotation allows you to take advantage of this circumstance The class marked with @MappedSuperclass

Ngày tải lên: 09/08/2014, 14:20

... (L2) cache The L1 cache willalways be consulted before any attempt is made to locate an object in the L2 cache You willnotice that the L2 cache is external to Hibernate; and although it is accessed ... cache is accessed Figure 8-3.The session’s relationship to the caches Trang 4The decision to use an L2 cache is not clear-cut Although it has the potential to greatlyreduce access to the database, ... the Box Cache Name Description The type of access to the L2 cache can be configured on a per-session basis by selecting a CacheMode option (see Table 8-5) and applying it with the setCacheMode()

Ngày tải lên: 09/08/2014, 14:20

... environment, the configuration information is accessed by creating anEntityManagerFactory class by calling the createEntityManagerFactory() method of thePersistence class, with the configured name ... optimistic locking (see Chapter 8) When any changes to an entity are stored, a version column is updated to reflect the fact that the entity has changed When a subsequent user tries to commit changes ... information From theEntityManagerFactory class, you can request EntityManager instances that are used to access the entities You have probably already spotted that the EJB 3 Persistence class corresponds

Ngày tải lên: 09/08/2014, 14:20

... into other objects, and hence tables in the database, then we have to be careful It is possible to write database logic from within an interceptor, but therisk of accidentally recursing back ... will find that it is necessary to persist a POJO that has no default constructor Usually you will have access to the source code, and should just make the change directly Occa-sionally, however, ... entityName.equals(MissingDefaultCtorClass.class.getName())) {// My call to CTor return new MissingDefaultCtorClass("NOT SET"); } else {// Some other class - continue to default handlingreturn

Ngày tải lên: 09/08/2014, 14:20

... HuddlestonRanga Raghuram, Syed Fahad Gilani, Jacob Hammer Pedersen, and Jon Reid Beginning C# 2008 Databases From Novice to Professional Trang 4Beginning C# 2008 Databases: From Novice to ProfessionalCopyright ... 197 Connection String Parameters for SqlConnection 197 Connection Pooling 199 Improving Your Use of Connection Objects 199 Using the Connection String in the Connection Constructor ... Renow-Clarke, Dominic Shakeshaft, Matt Wade, Tom Welsh Project Manager: Beth Christmas Copy Editor: Ami Knox Associate Production Director: Kari Brooks-Copony Production Editor: Ellie Fountain Compositor:

Ngày tải lên: 08/08/2014, 18:21

... Works listed in the CardType column of the CreditCard table Select CardType, ExpYear,count(CardType) AS 'Total Cards' from Sales.CreditCard WHEREcondition ensures that the cards listed will be ... complete process from conception to implementa-tion The entire development and implementation process of this cycle can be divided into small phases; only after the completion of each phase can you ... take many orders, which were placed bymany customers The products ordered may come from different suppliers, and chancesare that each supplier can supply more than one product All of these relationships

Ngày tải lên: 08/08/2014, 18:21

... LastName columns Trang 2Figure 5-3.Selecting specific columnsUsing the WHERE Clause Queries can have WHEREclauses The WHEREclause allows you to specify criteria for ing rows This clause can be complex, ... Characters Wildcard Description % Any combination of characters Where FirstName LIKE 'Mc%' selects all rows where the FirstName column equals McDonald, McBadden, McMercy, and so on. _ Any one character ... table containing or not containing the result set returned by a SELECTquery SELECT INTOcopies the exact table structure and data into another table specified in the INTOclause Usually, a SELECTquery

Ngày tải lên: 08/08/2014, 18:21

... moneyfrom the checking account and adding it to the savings account Both must succeedtogether and be committed to the accounts, or both must fail together and be rolled back so that the accounts ... the button Double-click button1, and itwill open the code editor with the button1_clickevent Insert the code in Listing 8-2 into the code editor Listing 8-2.button1_Click() SqlConnection conn = ... because, by default, the connection is in autocommit transaction mode If youwant no changes to be committed unless you explicitly indicate so, you need to set theconnection to implicit transaction

Ngày tải lên: 08/08/2014, 18:21

... String in the Connection Constructor In the ConnectionSql project, you created the connection and specified the connection string in separate steps Since you always have to specify a connection string, ... Add a C# Console Application project named ConnectionDisplay to the Chapter10solution 2. Rename Program.csto ConnectionDisplay.cs When prompted to rename all ences to Program, you can click either ... "; Trang 13// create connectionSqlConnection conn = new SqlConnection(connString);try {// open connectionconn.Open(); Console.WriteLine("Connection opened."); }catch (SqlException e) {//

Ngày tải lên: 08/08/2014, 18:21

... selectcompanyname,contactnamefrom customerswherecontactname like 'M%' "; // create connectionSqlConnection conn = new SqlConnection(connString); Trang 11try{// open connectionconn.Open();// create ... @"selectproductname,unitprice,unitsinstock,discontinuedfrom products "; // create connectionSqlConnection conn = new SqlConnection(connString);try {// open connectionconn.Open(); // create commandSqlCommand cmd = new SqlCommand(sql, ... selectcontactname,contacttitlefrom customerswherecontactname like 'M%' "; // create connectionSqlConnection conn = new SqlConnection(connString); try{conn.Open(); SqlCommand cmd = new SqlCommand(sql,

Ngày tải lên: 08/08/2014, 18:21

... static void Main(string[] args){ // connection stringstring connString = @" select *fromemployeeswherecountry = 'UK' "; // create connectionSqlConnection conn = new SqlConnection(connString); ... firstname,lastname,titleofcourtesy,city, country) values Trang 15// create connectionSqlConnection conn = new SqlConnection(connString); try{// create data adapterSqlDataAdapter da = new SqlDataAdapter(); da.SelectCommand ... original data source changes made to a dataset ■ Note Changes you make to a dataset aren’t automatically propagated to a database To save the changes in a database, you need to connect to the database

Ngày tải lên: 08/08/2014, 18:21

... source view, so to see your change in effect, youneed to switch back to Design view When you have a lot of changes, it can be atedious process to see how each change made to the various controls ... fromhttp://to http://localhost/Chapter15, which indicates that you are going to create a website under IIS with the name Chapter15 Click OK Now navigate to Solution Explorer so you can see what components ... were bound to write code to shift controls accord-ingly to account for the user resizing the form This technique was very code heavy and not so easy to implement With Visual Studio 2005 came two

Ngày tải lên: 08/08/2014, 18:21

... cmd = conn.CreateCommand(); // specify stored procedure to be executedcmd.CommandType = CommandType.StoredProcedure; cmd.CommandText = "sp_DbException_2"; try{// open connectionconn.Open(); ... released and a control has the focus. MouseClick Occurs only when a control is being clicked by the mouse. MouseDoubleClick Occurs when a control gets double-clicked by the mouse. MouseDown Occurs when ... 16-6.button5_Click()// create connectionSqlConnection conn = new SqlConnection(@" data source = \sqlexpress; integrated security = true; database = northwnd "); // create commandSqlCommand cmd

Ngày tải lên: 08/08/2014, 18:21

... namespace Chapter19{ static void Main(string[] args){ // connection stringstring connString = @" Trang 3// query databasevar custs =from c in customersselectc ;// display customersforeach (var c ... (var c in custs)Console.WriteLine( "{0} {1} {2} {3}",c.customerId,c.companyName,c.city,c.country); }}} 3. Right-click the LinqToSql project and select the Set as StartUp Project option ... Double-click the Button control to go to Code view Before proceeding withadding the code for the button’s click event, add the following namespace to theproject: using System.Data.EntityClient;

Ngày tải lên: 08/08/2014, 18:21

... generic DbConnection reference: // Obtain a database specific connection object DbConnection conn = factory.CreateConnection(); So, in practice, the connection object will actually contain a SqlCommand ... DbProviderFactory factory = DbProviderFactories.GetFactory("System.Data.SqlClient"); // Create the connection object DbConnection conn = factory.CreateConnection(); // Initialize the connection ... provider factory class is capable of creating a database-specific connection object through its CreateConnection object However, you’ll keep the reference to the connection object stored using

Ngày tải lên: 09/08/2014, 14:20

... you’ll want to create a separate file for each class, but because in this case DepartmentDetails is more like a tool for the CatalogAccess class, we chose to add it to CatalogAccess.cs.Add the ... GetProductDetails method to the CatalogAccess class: // Get product details public static ProductDetails GetProductDetails(string productId) { // get a configured DbCommand object DbCommand comm ... get a configured DbCommand object DbCommand comm = GenericDataAccess.CreateCommand(); // set the stored procedure name comm.CommandText = "GetProductsOnCatalogPromotion"; // create

Ngày tải lên: 09/08/2014, 14:20

... Item Purchases in Chapter 10 (just after creating the Place Order button), you’ll need to add the following code to checkoutButton_Click in the code-behind file of ShoppingCart.ascx: // create ... e-commerce site You’ll also want to check which of the services are available in your country, what kind of credit cards and payment methods each company accepts, information about currency conversions, ... three account types: Personal, Premier, and Business To receive credit card payments, you need to open a Premier or Business account Choose your country from the combo box, and click Continue.

Ngày tải lên: 09/08/2014, 14:20