Name: Spring 5 Design Patterns
Author: Dinesh Rajput
ISBN: 9781788299596

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Spring 5 Design Patterns

Dinesh Rajput

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Title Page
Copyright
Spring 5 Design Patterns
Credits
About the Author
About the Reviewer
www.PacktPub.com
Why subscribe?
Customer Feedback
Dedication
Preface
What this book covers
What you need for this book
Who this book is for
Conventions
Reader feedback
Customer support
Downloading the example code
Errata
Piracy
Questions
Getting Started with Spring Framework 5.0 and Design Patterns
Introducing Spring Framework
Simplifying application development using Spring and its pattern
Using the power of the POJO pattern
Injecting dependencies between POJOs
How DI works and makes things easy for development and testing
Using factory helper pattern for dependent components
Using DI pattern for dependent components
Applying aspects for cross cutting concerns
How Spring AOP works
Applying the template pattern to eliminate boilerplate code
The Template Design pattern in Spring
Using a Spring container to manage beans with the Factory pattern
Bean factory
Application contexts
Creating a container with an application context
Life of a bean in the container
Spring modules
Core Spring container
Spring s AOP module
Spring DAO - data access and integration
Spring s ORM
Spring web MVC
New features in Spring Framework 5.0
Summary
Overview of GOF Design Patterns - Core Design Patterns
Introducing the power of design patterns
Common GoF Design Pattern overview
Creational design patterns
Factory design pattern
Implementing the Factory design pattern in Spring Framework
Sample implementation of the Factory design pattern
Abstract factory design pattern
Common problems where you should apply the Abstract factory design pattern
Implementing the Abstract factory design pattern in the Spring Framework
Sample implementation of the Abstract Factory design pattern
Singleton design pattern
Common problems where you should apply Singleton pattern
Singleton design pattern implementation in the Spring Framework
Sample implementation of the Singleton design pattern
Prototype design pattern
Benefits of the Prototype design pattern
UML class structure
Sample implementation of the Prototype design pattern
Builder design pattern
Benefits of the Builder pattern:
UML class structure
Implementing the Builder pattern in the Spring Framework
Common problems where you should apply Builder pattern
Sample implementation of the Builder design pattern
Summary
Consideration of Structural and Behavioral Patterns
Examining the core design patterns
Structural design patterns
The adapter design pattern
Benefits of the adapter pattern
Common requirements for the adapter pattern
Implementation of the adapter design pattern in the Spring Framework
Sample implementation of the adapter design pattern
The Bridge design pattern
Benefits of the Bridge pattern
Common problems solved by the Bridge design pattern
Implementing the Bridge design pattern in the Spring Framework
Sample implementation of the Bridge design pattern
Composite design pattern
Common problems solved by the composite pattern
UML structure of the Composite design pattern
Sample implementation of the Composite design pattern
Decorator design pattern
Common problems solved by the Decorator pattern
Implementing the Decorator pattern
Decorator design pattern in the Spring Framework
Facade Design Pattern
Knowing when to use the Facade Pattern
Implementing the Facade design pattern
The UML structure for the Facade design pattern
Facade Pattern in the Spring Framework
Proxy design pattern
Purpose of the Proxy pattern
UML structure for the Proxy design pattern
Implementing the Proxy design pattern
Proxy pattern in the Spring Framework
Behavioral design patterns
Chain of Responsibility design pattern
Chain of Responsibility pattern in the Spring Framework
Command design pattern
Command design pattern in the Spring Framework
Interpreter Design pattern
Interpreter design pattern in the Spring Framework
Iterator Design Pattern
Iterator design pattern in the Spring Framework
Observer pattern in the Spring Framework
Template Design Pattern
JEE design patterns
Summary
Wiring Beans using the Dependency Injection Pattern
The dependency injection pattern
Solving problems using the dependencies injection pattern
Without dependency injection
With dependency injection pattern
Types of dependency injection patterns
Constructor-based dependency injection pattern
Setter-based dependency injection
Configuring the dependency injection pattern with Spring
Dependency injection pattern with Java-based configuration
Creating a Java configuration class - AppConfig.java
Declaring Spring beans into configuration class
Injecting Spring beans
Best approach to configure the dependency injection pattern with Java
Dependency injection pattern with XML-based configuration
Creating an XML configuration file
Declaring Spring beans in an XML file
Injecting Spring beans
Using constructor injection
Using setter injection
Dependency injection pattern with Annotation-based configuration
What are Stereotype annotations?
Creating auto searchable beans using Stereotype annotations
Searching beans using component scanning
Annotating beans for autowiring
Using @Autowired with setter method
Using @Autowired with the fields
The Autowiring DI pattern and disambiguation
Resolving disambiguation in Autowiring DI pattern
Implementing the Abstract Factory Pattern in Spring (FactoryBean interface)
Implementation of FactoryBean interface in Spring
Sample implementation of FactoryBean interface
Best practices for configuring the DI pattern
Summary
Understanding the Bean Life Cycle and Used Patterns
The Spring bean life cycle and its phases
The initialization phase
Creating the application context from configuration
Load bean definitions
Initializing bean instances
Customizing beans using a BeanPostProcessor
The Initializer extension point
The Use phase of beans
Implementing the Decorator and Proxy patterns in Spring using Proxies
The destruction phase of the beans
Understanding bean scopes
The singleton bean scope
The prototype bean scope
The session bean scope
The request bean scope
Other scopes in Spring
Custom scopes
Creating custom scopes
Summary
Spring Aspect Oriented Programming with Proxy and Decorator pattern
Proxy pattern in Spring
Proxying classes using Decorator pattern in Spring
What are cross-cutting concerns?
What is Aspect-Oriented Programming?
Problems resolved by AOP
Code tangling
Code scattering
How AOP Works to solve problems
Core AOP terminology and concepts
Advice
Join Point
Pointcut
Aspect
Weaving
Defining pointcuts
Writing pointcuts
Creating aspects
Define aspects using Annotation
Implementing Advice
Advice type - Before
Before Advice example
Advice Types: After Returning
After Returning Advice example
Advice Types: After Throwing
After Throwing Advice example
Advice Types: After
After Advice example
Advice Types - Around
Around Advice example
Define aspects using XML configuration
Understanding AOP proxies
Summary
Accessing a Database with Spring and JDBC Template Patterns
The best approach to designing your data-access
The resource management problem
Implementing the template design pattern
Problems with the traditional JDBC
Solving problems with Spring s JdbcTemplate
Configuring the data source and object pool pattern
Configuring a data source using a JDBC driver
Configuring the data source using pool connections
Implementing the Builder pattern to create an embedded data source
Abstracting database access using the DAO pattern
The DAO pattern with the Spring Framework
Working with JdbcTemplate
When to use JdbcTemplate
Creating a JdbcTemplate in an application
Implementing a JDBC-based repository
Jdbc callback interfaces
Creating a RowMapper class
Implementing RowCallbackHandler
Implementing ResultSetExtractor
Best practices for Jdbc and configuring JdbcTemplate
Summary
Accessing Database with Spring ORM and Transactions Implementing Patterns
ORM Framework and the patterns used
Resource and transaction management
Consistent exception handling and translation
The data access object pattern
Creating DAOs using the Factory design pattern in Spring
The Data Mapper pattern
The domain model pattern
Proxy for the lazy loading pattern
Spring s Hibernate template pattern
Integrating Hibernate with Spring
Configuring Hibernate s SessionFactory in a Spring container
Implementing DAOs based on the plain Hibernate API
Transaction management strategies in Spring
Declarative transaction demarcation and implementation
Deploying the transaction manager
Step 1 - Implementing the transaction manager
Step 2 - Declaring the transaction demarcation
Programmatic transaction demarcation and implementation
Best practices for Spring ORM and transaction module in an application
Summary
Improving Application Performance Using Caching Patterns
What is cache?
Where do we use caching?
Understanding cache abstraction
Enabling caching via the Proxy pattern
Enabling the caching proxy using Annotation
Enabling the Caching Proxy using the XML namespace
Declarative Annotation-based caching
The @Cacheable annotation
The @CachePut annotation
Customizing the cache key
Conditional caching
The @CacheEvict annotation
The @Caching annotation
The @CacheConfig annotation
Declarative XML-based caching
Configuring the cache storage
Setting up the CacheManager
Third-party cache implementations
Ehcache-based cache
XML-based configuration
Creating custom caching annotations
Top caching best practices to be used in a web application
Summary
Implementing the MVC Pattern in a Web Application using Spring
Implementing the MVC pattern in a web application
Model 2 architecture MVC pattern with Spring
The Front Controller design pattern
Processing the life of a request
Configuring DispatcherServlet as the Front Controller
Defined by XML configuration
Defined by Java configuration
Enabling the Spring MVC
Implementing controllers
Defining a controller with @Controller
Mapping requests with @RequestMapping
@RequestMapping at method level
@RequestMapping at the class level
Defining @RequestMapping handler methods
Passing model data to the view
Accepting request parameters
Taking query parameters
Taking request parameters via path variables
Processing forms of a web page
Implementing a form handling controller
Data binding with Command Design pattern
Using @ModelAttributes for customizing data binding
Validating forms input parameters
Implementing View in the MVC pattern
Defining ViewResolver in the Spring MVC
Implement the View
Register ViewResolver with Spring MVC
The View Helper pattern
Composite View pattern using Apache tile view resolver
Configuring a Tiles ViewResolver
Best practices for web application design
Summary
Implementing Reactive Design Patterns
Understanding application requirement over the years
Understanding the reactive pattern
The reactive pattern traits
Responsiveness
Resilience
Scalable
Message-driven architecture
Blocking calls
Non-blocking calls
Back-pressure
Implementing reactive with the Spring 5 Framework
Reactive Streams
Spring Web reactive module
Implementing a reactive web application at the server side
The Annotation-based programming model
The functional programming model
Implementing a Reactive Client-Side application
Request and response body conversion
Summary
Implementing Concurrency Patterns
Active object pattern
Monitor object pattern
Half-Sync/Half-Async patterns
Leader/follower pattern
Reactor pattern
Thread-specific storage pattern
Best practices for concurrency module
Summary

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Spring 5 Design Patterns