In this section, we’re going to look at the standards and technologies that are available to make our microservices visible so that we can make visible the data and functionality that our microservices provide to everyone in our organization. One of the ways of doing this is by exposing a special endpoint using a framework […]
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The Iterator Pattern also known as Cursor is a behavioral design pattern that provides a way to access elements of an aggregate object (such as a collection) sequentially without exposing the underlying representation of that object. It is used to traverse a container of elements, allowing clients to access its elements without needing to know
The Decorator pattern belongs to the category of structural design patterns. It provides a way to enhance the functionality of objects by enclosing them within wrapper objects, which in turn, impart additional behaviors to these objects. When developing a reporting system, you need to provide flexibility for users to customize the content and appearance of
The Composite Pattern is a structural design pattern to compose objects into tree-like structures to represent part-whole hierarchies. It allows clients to treat individual objects and compositions of objects uniformly. In essence, the Composite Pattern creates a unified interface for both individual objects (leaf nodes) and composite objects (nodes that can contain other objects). This
Oracle launched Java 11 in September 2018, just six months after the previous version, Java 10. Java 11 is the first version that Oracle will support for a long time after Java 8. Oracle stopped giving support to Java 8 in January 2019. Let’s explore some of the key features and changes to the common
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we will dive into practical coding examples to explore the capabilities and versatility of the Java 8 Stream API. This page will provide hands-on demonstrations of various operations that can be performed using streams, showcasing how this powerful feature simplifies complex data manipulation tasks. By following along with our examples, you’ll gain a deeper understanding
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The Stream API, which was introduced with the release of Java 8, serves as a powerful tool for processing collections of objects. A stream in Java represents a sequence of objects and offers a range of methods that can be efficiently chained together to achieve specific outcomes. Key aspects of the Java stream feature include:
The java.util.function.Function interface stands as one of the valuable functional interfaces (an interface that contains only one abstract method). It is a key component of the Java 8 functional programming API. It provides a way to define and manipulate functions in Java code. Why Function Interface? You can use the function interface to create new functions or
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Functional programming (FP) is a way of programming that focuses on using pure functions, which always give the same output for a given input and don’t cause any side effects. This approach avoids using mutable state and encourages combining functions to create efficient and easy-to-read code. By using FP, developers can build more reliable and
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Spring Data JPA is a powerful and user-friendly framework that simplifies data access and persistence in Java applications using the Java Persistence API (JPA). It is part of the larger Spring Data family, which aims to provide consistent data access solutions across various data stores. What is ORM? ORM stands for Object-Relational Mapping. It is
