Hibernate and MongoDB are a powerful combination of open source persistence and NoSQL technologies for today's Java-based enterprise and cloud application developers. Hibernate is the leading open source Java-based persistence, object relational management engine, recently repositioned as an object grid management engine. MongoDB is a growing, popular open source NoSQL framework, especially popular among cloud application and big data developers. With these two, enterprise and cloud developers have a complete out of the box solution. Pro Hibernate and MongoDB shows you how to use and integrate Hibernate and MongoDB. More specifically, this book guides you through the bootstrap; building transactions; handling queries and query entities; and mappings. Then, this book explores the principles and techniques for taking these application principles to the cloud, using the OpenShift Platform as a Service (PaaS) and more. In this book, you get two case studies: * An enterprise application using Hibernate and MongoDB. then, * A cloud application (OpenShip) migrated from the enterprise application case study After reading or using this book, you come away with the experience from two case studies that give you possible frameworks or templates that you can apply to your own specific application or cloud application building context.What you'll learn * How to use and integrate Hibernate and MongoDB to be your complete out of the box solution for database driven enterprise and cloud applications * How to bootstrap; run in supported environments; do transactions; handle queries and query entities; and mappings * How to build an enterprise application case study using Hibernate and MongoDB * What are the principles and techniques for taking applications to the Cloud, using the OpenShift Platform as a Service (PaaS) and more * How to build a cloud-based app or application (OpenShip) Who this book is for This book is for experienced Java, enterprise Java programmers who may have some experience with Hibernate and/or MongoDB.

Pro Java 7 NIO.2 addresses the three primary elements that offer new input/output (I/O) APIs in Java 7, giving you the skills to write robust, scalable Java applications: * An extensive file I/O API system addresses feature requests that developers have sought since the inception of the JDK * A socket channel API addresses multicasting, socket binding associated with channels, and related issues * An asynchronous I/O API enables mapping to I/O facilities, completion ports, and various I/O event port mechanisms to enhance scalability NIO.2 for the Java platform, known as JSR 203, is a major feature of the new Java JDK 7 under the leadership of Alan Bateman as an OpenJDK project. Take advantage of these exciting new developments with Pro Java 7 NIO.2. What you'll learn * How to carry out Path class operations * How to get/set file metadata through the java.nio file attribute API (including POSIX) * How to manage symbolic and hard links (including create, delete, and find target) * How to deal with files and directories through the new java.nio.file.Files API * How to use the FileVisitor API to develop file recursive operations * How to explore the Watch Service API and file change notification * How to use the new SeekableByteChannel API for Random Access File * How to develop blocking/non-blocking socket-based applications * How to explore the jewel of NIO.2: the Asynchronous Channel API * How to use the Zip File System Provider and write a custom file system provider * How to refactor java.io.File code Who this book is for This book is for experienced Java programmers new to Java 7 and those with some experience with Java 7. Table of Contents * Working with the Path Class * Metadate File Attributes * Symbolic Links * Files and Directories * The FileVisitor Class: Recursive Operations * Watch Service API * Two Security Models * SPI Package * Mapping java.io.file Functionality to java.nio.file * General Methods

This book is a collection of developer code recipes and best practices for persisting data using Spring, particularly Spring Boot. The book is structured around practical recipes, where each recipe discusses a performance case or performance-related case, and almost every recipe has one or more applications. Mainly, when we try to accomplish something (e.g., read some data from the database), there are several approaches to do it, and, in order to choose the best way, you have to know the implied trades-off from a performance perspective. You'll see that in the end, all these penalties slow down the application. Besides presenting the arguments that favor a certain choice, the application is written in Spring Boot style which is quite different than plain Hibernate. Persistence is an important set of techniques and technologies for accessing and using data, and this book demonstrates that data is mobile regardless of specific applications and contexts. In Java development, persistence is a key factor in enterprise, ecommerce, cloud and other transaction-oriented applications. After reading and using this book, you'll have the fundamentals to apply these persistence solutions into your own mission-critical enterprise Java applications that you build using Spring. What You Will Learn Shape *-to-many associations for best performances Effectively exploit Spring Projections (DTO) Learn best practices for batching inserts, updates and deletes Effectively fetch parent and association in a single SELECT Learn how to inspect Persistent Context content Dissect pagination techniques (offset and keyset) Handle queries, locking, schemas, Hibernate types, and more Who This Book Is For Any Spring and Spring Boot developer that wants to squeeze the persistence layer performances.

Learn the best way to write SQL in Java by taking control of SQL in your app via a type-safe, dynamic and versatile API that supports almost any type or feature compatible with a database and emphasizes SQL syntax correctness Key Features Write complex, type-safe, and dynamic SQL using the powerful jOOQ API Tackle complex persistence tasks, such as lazy fetching, R2DBC, transactions, and batching while sustaining high traffic in your modern Java applications Use a comprehensive SPI to shape and extend jOOQ according to your needs Book DescriptionjOOQ is an excellent query builder framework that allows you to emulate database-specific SQL statements using a fluent, intuitive, and flexible DSL API. jOOQ is fully capable of handling the most complex SQL in more than 30 different database dialects. jOOQ Masterclass covers jOOQ from beginner to expert level using examples (for MySQL, PostgreSQL, SQL Server, and Oracle) that show you how jOOQ is a mature and complete solution for implementing the persistence layer. You'll learn how to use jOOQ in Spring Boot apps as a replacement for SpringTemplate and Spring Data JPA. Next, you'll unleash jOOQ type-safe queries and CRUD operations via jOOQ's records, converters, bindings, types, mappers, multi-tenancy, logging, and testing. Later, the book shows you how to use jOOQ to exploit powerful SQL features such as UDTs, embeddable types, embedded keys, and more. As you progress, you'll cover trending topics such as identifiers, batching, lazy loading, pagination, and HTTP long conversations. For implementation purposes, the jOOQ examples explained in this book are written in the Spring Boot context for Maven/Gradle against MySQL, Postgres, SQL Server, and Oracle. By the end of this book, you'll be a jOOQ power user capable of integrating jOOQ in the most modern and sophisticated apps including enterprise apps, microservices, and so on. What you will learn Enable the jOOQ Code Generator in any combination of Java and Kotlin, Maven and Gradle Generate jOOQ artifacts directly from database schema, or without touching the real database Use jOOQ DSL to write and execute a wide range of queries for different databases Understand jOOQ type-safe queries, CRUD operations, converters, bindings, and mappers Implement advanced SQL concepts such as stored procedures, derived tables, CTEs, window functions, and database views Implement jOOQ multi-tenancy, tuning, jOOQ SPI, logging, and testing Who this book is forThis book is for Java developers who write applications that interact with databases via SQL. No prior experience with jOOQ is assumed.

Explore a wide variety of popular interview questions and learn various techniques for breaking down tricky bits of code and algorithms into manageable chunks Key Features Discover over 200 coding interview problems and their solutions to help you secure a job as a Java developer Work on overcoming coding challenges faced in a wide array of topics such as time complexity, OOP, and recursion Get to grips with the nuances of writing good code with the help of step-by-step coding solutions Book DescriptionJava is one of the most sought-after programming languages in the job market, but cracking the coding interview in this challenging economy might not be easy. This comprehensive guide will help you to tackle various challenges faced in a coding job interview and avoid common interview mistakes, and will ultimately guide you toward landing your job as a Java developer. This book contains two crucial elements of coding interviews - a brief section that will take you through non-technical interview questions, while the more comprehensive part covers over 200 coding interview problems along with their hands-on solutions. This book will help you to develop skills in data structures and algorithms, which technical interviewers look for in a candidate, by solving various problems based on these topics covering a wide range of concepts such as arrays, strings, maps, linked lists, sorting, and searching. You'll find out how to approach a coding interview problem in a structured way that produces faster results. Toward the final chapters, you'll learn to solve tricky questions about concurrency, functional programming, and system scalability. By the end of this book, you'll have learned how to solve Java coding problems commonly used in interviews, and will have developed the confidence to secure your Java-centric dream job. What you will learn Solve the most popular Java coding problems efficiently Tackle challenging algorithms that will help you develop robust and fast logic Practice answering commonly asked non-technical interview questions that can make the difference between a pass and a fail Get an overall picture of prospective employers' expectations from a Java developer Solve various concurrent programming, functional programming, and unit testing problems Who this book is forThis book is for students, programmers, and employees who want to be invited to and pass interviews given by top companies. The book assumes high school mathematics and basic programming knowledge.

Develop your coding skills by exploring Java concepts and techniques such as Strings, Objects and Types, Data Structures and Algorithms, Concurrency, and Functional programming Key Features Solve Java programming challenges and get interview-ready by using the power of modern Java 11 Test your Java skills using language features, algorithms, data structures, and design patterns Explore areas such as web development, mobile development, and GUI programming Book DescriptionThe super-fast evolution of the JDK between versions 8 and 12 has increased the learning curve of modern Java, therefore has increased the time needed for placing developers in the Plateau of Productivity. Its new features and concepts can be adopted to solve a variety of modern-day problems. This book enables you to adopt an objective approach to common problems by explaining the correct practices and decisions with respect to complexity, performance, readability, and more. Java Coding Problems will help you complete your daily tasks and meet deadlines. You can count on the 300+ applications containing 1,000+ examples in this book to cover the common and fundamental areas of interest: strings, numbers, arrays, collections, data structures, date and time, immutability, type inference, Optional, Java I/O, Java Reflection, functional programming, concurrency and the HTTP Client API. Put your skills on steroids with problems that have been carefully crafted to highlight and cover the core knowledge that is accessed in daily work. In other words (no matter if your task is easy, medium or complex) having this knowledge under your tool belt is a must, not an option. By the end of this book, you will have gained a strong understanding of Java concepts and have the confidence to develop and choose the right solutions to your problems. What you will learn Adopt the latest JDK 11 and JDK 12 features in your applications Solve cutting-edge problems relating to collections and data structures Get to grips with functional-style programming using lambdas Perform asynchronous communication and parallel data processing Solve strings and number problems using the latest Java APIs Become familiar with different aspects of object immutability in Java Implement the correct practices and clean code techniques Who this book is forIf you are a Java developer who wants to level-up by solving real-world problems, then this book is for you. Working knowledge of Java is required to get the most out of this book.

A homogenous guide integrating the features of JSF 2.x (2.0, 2.1 and 2.2), following a learning through examples paradigm with its main focus on the advanced concepts of JSF. If you are a web developer who uses JSF, this is the book for you. Catering to an intermediate-advanced audience, the book assumes you have fundamental knowledge of JSF. It is intended for the developer who wants to improve their skills with the combined power of JSF 2.0, 2.1, and 2.2.

Practical, hands-on "Cookbook" approach. Full of clear, step-by-step instructions that you can apply straight away. Written for people who want to get maximum results without lots of background and theory reading. JSF developers who want to work with validators, converters and security features of JSF. You don't need any prior knowledge of JSF to use these recipes.

Since these technologies covered are different from each other, they are covered in separate chapters that are not interdependent; therefore you can learn to use whichever tool you want, without exploring the previous chapters. This approach sustains the learning per example paradigm and helps you to use the book as a quick guide for your favorite technologies. This book is recommended for Java developers who use at least one of the covered technologies (JSF, Struts, Hibernate, Seam, and so on). It is for all Java developers who are looking for a powerful, unitary tool, especially designed to increase the speed of development and quality of Java web applications. No matter how much (or how little) experience they have, developers of all levels will benefit as their use of JBoss Tools is directly proportional to the complexity of their application. Since JBoss Tools covers all levels of experience, you can use it at your own level for your own applications, without involving unnecessary features. All you need is to be familiar with the Eclipse environment and Java core, and to have some expertise in the technology for which you want to use the JBoss Tools. Basic expertise for each technology is provided in the book, but for more complete and detailed aspects you should read dedicated specifications, tutorials, and articles.