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Listing 21-9. DefaultUserService Implementation of UserService public class DefaultUserService implements UserService{ private UserDao userDao; public void register(User user) { if(this.userDao.getByUsername(user.getUsername())!=null) throw new IllegalArgumentException("Same username already exists!"); if(user.getPassword().length()<6) throw new IllegalArgumentException ("Password must be at least 6 characters long"); this.userDao.save(user); } public List<User> findAllUsers() { return this.userDao.getAll(); } public void delete(User user){ this.userDao.delete(user); } public void setUserDao(UserDao userDao) { this.userDao = userDao; } } The main method that we are going to test is void register(User user); it simply saves the User to the database after checking the constraints for the username and password. The constraints are that the username must be unique (no other users can be already registered with the same username), and that the password must be at least six characters long. Listing 21-10 shows the User domain object we are using. Listing 21-10. The User Domain Object public class User{ private Long id; private String username; private String fullname; private String password; public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } public String getFullname() { return fullname; } public void setFullname(String fullname) { this.fullname = fullname; } winforms data matrix reader C# Data Matrix Reader SDK to read, scan Data Matrix in C#.NET ...
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NET DLL scanning and decoding Data Matrix barcode in . ... NET with full Data Matrix barcode reading functionality is combined into a single DLL file; Easy to use in desktop projects, server and web applications ... NET for WinForms or ASP. winforms data matrix reader WinForms Data Matrix Barcode Generator in .NET - generate Data ...
Data Matrix .NET WinForms Barcode Generation Guide illustrates how to easily generate Data Matrix barcode images in .NET windows application using both ... Barcode for ASP.NET Barcode for.NET WinForms: Barcode for Reporting Services Barcode for Crystal Reports Barcode for RDLC ... NET Programing Control: NET Reporting Control public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } public Long getId() { return id; } public void setId(Long id) { this.id = id; } } Actual database manipulation is implemented using Hibernate. Listing 21-11 shows the UserDao interface, which the DefaultUserService uses. Listing 21-11. The UserDao Interface public interface UserDao { void save(User user); void delete(User user); User getById(Long id); List<User> getAll(); User getByUsername(String username); } The implementation of this class will use hibernateTemplate to communicate with the database. You can see the HibernateUserDao implementation in Listing 21-12. For more information on Hibernate and data access, please see 11. Listing 21-12. HibernateUserDao Implementation public class HibernateUserDao extends HibernateDaoSupport implements UserDao { public void save(User user) { getHibernateTemplate().save(user); } public void delete(User user) { getHibernateTemplate().delete(user); } public User getById(Long id) { return (User)getHibernateTemplate().get(User.class, id); } public List<User> getAll() { return getHibernateTemplate().find("from User"); } winforms data matrix reader WinForms Barcode Control | Windows Forms | Syncfusion
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Home > .NET Barcode Reader > 2D Data Matrix Barcode Scanning Control ... NET Windows Forms project, VB. ... NET WinForms DataMatrix Barcode Generator. public User getByUsername(String username) { List objects = getHibernateTemplate(). find("from User where username = ", username); // you can use DataAccessUtils.uniqueResult(collection). if (objects.size() == 1) return (User)objects.get(0); if (objects.size() > 1) { throw new InvalidResultException("Found more than one results"); } return null; } } Next, we will need to write Spring context files for the data access layer, Hibernate, and the service layer. In Listing 21-13, you can see the applicationContext-dataaccess.xml file, which contains definitions for the dataSource bean, as well as all userDao beans. Listing 21-13. Spring Context XML File for Data Access Configuration < xml version="1.0" encoding="UTF-8" > <beans xmlns="http://www.springframework.org/schema/beans" ....> <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="driverClassName"> <value>oracle.jdbc.OracleDriver</value> </property> <property name="url" value="jdbc:oracle:thin:@localhost:1521:INTL"/> <property name="username" value="PROSPRING"</property> <property name="password" value="x******6" </property> </bean> <bean id="hibernateSessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> <property name="dataSource" ref="dataSource"/> <property name="mappingLocations"> <list> <value>classpath*:/com/apress/ prospring2/ch21/dataaccess/hibernate/*.hbm.xml</value> </list> </property> <property name="hibernateProperties"> <props> <prop key="hibernate.dialect"> org.hibernate.dialect.Oracle9Dialect</prop> </props> </property> </bean> <bean id="hibernateDaoSupport" abstract="true" class="org.springframework.orm.hibernate3.support.HibernateDaoSupport"> <property name="sessionFactory" ref="hibernateSessionFactory"/> </bean> <bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager"> <property name="sessionFactory" ref="hibernateSessionFactory"/> <property name="nestedTransactionAllowed" value="false"/> <property name="dataSource" ref="dataSource"/> </bean> 1.67 2.94 3.09 2.36 <bean id="userDao" class="com.apress.prospring2.ch21.dataaccess.hibernate.HibernateUserDao" parent="hibernateDaoSupport"/> </beans> Now that we have the data source and Hibernate beans configured, we need to write the mapping details. Hibernate uses the mapping files (*.hbm.xml files) to find out how to map the objects to the tables and columns in the tables. For more information about Hibernate, see 11. Listing 21-14. The Hibernate Configuration File < xml version="1.0" > <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"> <hibernate-mapping default-lazy="true"> <class name="com.apress.prospring2.ch21.domain.User" table="t_user"> <id name="id" type="long" unsaved-value="null"> <generator class="sequence"> <param name="sequence">s_user_id</param> </generator> </id> <property name="username" column="username" not-null="true" /> <property name="fullname" column="fullname" not-null="false" /> <property name="password" column="password" not-null="true" /> </class> </hibernate-mapping> Finally, we will need a Spring context file where we will define our services, which in our example means only the userService bean (the DefaultUserService implementation); see Listing 21-15. Listing 21-15. The applicationContext-services.xml Spring Context File for Configuring Services Beans < xml version="1.0" encoding="UTF-8" > <beans xmlns="http://www.springframework.org/schema/beans" ...> <bean id="userService" class="com.apress.prospring2.ch21.services.DefaultUserService"> <property name="userDao" ref="userDao"/> </bean> </beans> Manually creating beans for an integration test may be too difficult and unnecessary. Instead, we can create the Spring application context and let the framework instantiate the beans for us. In most cases, you will be using XmlApplicationContext, thus we will need to instantiate one of the XmlApplicationContext implementations. Let s take a look at the code in Listing 21-16 to see how we can go about this. winforms data matrix reader C# Code for .NET Data Matrix Barcode Reader Control | Scan Data ...
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