To implement this pattern with the best practices of Java EE 8, we will use the servlet filter from the Java Servlet specification. With the servlet filter, we can create an ordered request interceptor to treat the requests and responses. These interceptors are mapped by the URL pattern or servlet name. The servlet filter can be configured with XML (on web.xml) or annotation. In our case, we will imagine that we want to create a log of all the requests that are sent to the server. We will also have two filters—one to log the access time and another to log the information about the browser that the client is using. To log the access time, we will create a filter called LogAccessFilter, and to log the browser information we will create a filter called LogBrowserFilter.
Java EE 8 Design Patterns and Best Practices
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Java EE 8 Design Patterns and Best Practices
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Overview of this book
Patterns are essential design tools for Java developers. Java EE Design Patterns and Best Practices helps developers attain better code quality and progress to higher levels of architectural creativity by examining the purpose of each available pattern and demonstrating its implementation with various code examples. This book will take you through a number of patterns and their Java EE-specific implementations.
In the beginning, you will learn the foundation for, and importance of, design patterns in Java EE, and then will move on to implement various patterns on the presentation tier, business tier, and integration tier. Further, you will explore the patterns involved in Aspect-Oriented Programming (AOP) and take a closer look at reactive patterns. Moving on, you will be introduced to modern architectural patterns involved in composing microservices and cloud-native applications. You will get acquainted with security patterns and operational patterns involved in scaling and monitoring, along with some patterns involved in deployment.
By the end of the book, you will be able to efficiently address common problems faced when developing applications and will be comfortable working on scalable and maintainable projects of any size.
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Current Title:
Java EE 8 Design Patterns and Best Practices
Table of Contents (20 chapters)
Title Page
Copyright and Credits
Dedication
Packt Upsell
Contributors
Preface
Free Chapter
Introduction to Design Patterns
Presentation Patterns
Business Patterns
Integration Patterns
Aspect-Oriented Programming and Design Patterns
Reactive Patterns
Microservice Patterns
Cloud-Native Application Patterns
Security Patterns
Deployment Patterns
Operational Patterns
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Index
Customer Reviews