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Structural Software Design Patterns
Structural design patterns are a way of structuring code to make it more maintainable and flexible by re-using solutions to common problems. The idea stemmed from the book “Design Patterns: Elements of Reusable…
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Elastic Beanstalk
Elastic Beanstalk is a fully managed service from AWS that supports the deployment and scalability of web applications and services. Elastic Beanstalk is free and only the resources used to store and run…
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Java Messaging Service (JMS)
Messaging is a common integration pattern used by Java applications. The Java messaging API (JMS) supports message creation, delivery, receipt and the ability to read messages. JMS defines roles for messaging services known…
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Enterprise Java Beans (EJB)
Enterprise Java Beans (EJBs) is an API within the Java EE specification that provides a standard component architecture for building object-oriented business applications. EJBs are reusable Java objects or POJOs that run in…
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Algorithms
What is an algorithm? An algorithm is a way of solving well specified computational problems. – Cormen et al. A finite set of rules that give a sequence of operations for solving a…
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Java Enterprise Edition
Java EE is an umbrella specification that contains a set of interoperable API specifications that support the development of enterprise systems with Java. Java EE provides higher-level abstractions for common system concerns. Goals…
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Java Servlet API
The Servlet API is an important feature in building Java web applications. Servlets run in a servlet container which is a web or application server that provides network services for receiving requests and…
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Java Persistence API (JPA) ~ Part 2 ~ Entity Manager
The entity manager API is used to create and remove entity instances, find entities by their primary key and to query entities. JPA defines a persistence unit in the persistence.xml file which caters…
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Java Persistence API (JPA) ~ Part 1 ~ The basics
What is persistence? Applications are designed to store and manipulate data in a remote datasource/database so that it can be retrieved, processed, transformed or analyzed at a later time. Persistence refers to the…
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Managing collections of data in Java
The Java Collections Framework supports multiple approaches to creating and managing collections of data. Collections of data can be ordered or unordered. There are various interfaces that are exposed by the Java Collections…
