Logging with SLF4J

Logging is important in software development. There are many famous frameworks to be used for logging: Log4j, Logback, java.util.logging… If we wanna change the logging framework without affecting Java code, SLF4J is the good choice.

This tutorial writes about SLF4J with example of how to apply SLF4J in some logging frameworks.

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Maven Introduction – Part 4: Maven Build LifeCycle

Maven build lifeCycle is the central concept of Maven. The sequence of phases which define the order of building and distributing artifact/project is defined with a build lifeCycle.

There are three standard lifeCycles: default, clean and site.
default handles project deployment.
clean handles project cleaning.
site handles the creation of project’s site documentation.

This tutorial will introduce these Maven build lifeCycles, relation between concepts of phases and plugin goals.

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Maven Introduction – Part 3: Maven Dependency Mechanism

Dependency Management is a key feature of Maven. Maven Dependencies are identified by individual artifacts such as libraries or modules. It is not too difficult to manage dependencies for just a single project but, with multi-module projects, there are many things unclear.

This tutorial introduces the Maven Dependency Mechanism by which Maven helps us control them.

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Maven Introduction – Part 1

Maven is a software project management and comprehension tool, an open source project by the Apache community. It can also model a standard structure for Java projects. With Project Object Model (POM) approach, Maven provides a uniform and radical way of understanding and building Java project, reporting and documentation with all its dependencies.

This tutorial will go through quite a few Maven concepts with Eclipse IDE so that we can have a better understanding about its standards.

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Spring Expression Language SpEL

Spring Expression Language (SpEL) is a powerful expression language that supports querying and manipulating an object graph at runtime.

This tutorial shows various examples of ways to use SpEL expressions with XML and annotation based configuration. We also know how to evaluate an expression using SpEL classes and interfaces.

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Spring JPA – Many to Many relationship

This tutorial will guide you through the steps configuring Many to Many relationship in database with Spring JPA, Spring Boot & PostgreSql.

Related articles:
How to configure Spring JPA One to One Relationship – SpringBoot
How to configure Spring JPA One to Many Relationship – SpringBoot
Spring Data Rest – How to create a RestAPIs with JPA Many-to-Many relational entities | SpringBoot + MySql + HAL Browser

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@Resource Annotation in Spring

@Resource Annotation is used to indicate a reference to a resource, it is considered an alternative to @Autowired which is an Spring standard. Similar to Java EE 5, we can use @Resource Annotation with field injection or setter method.

This tutorial will cover those kinds of injection which will be used for matching by Name, Type or Qualifier.

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