{"id":88817,"date":"2023-11-20T18:00:34","date_gmt":"2023-11-20T12:30:34","guid":{"rendered":"https:\/\/techvidvan.com\/tutorials\/?p=88817"},"modified":"2023-11-20T18:00:34","modified_gmt":"2023-11-20T12:30:34","slug":"aggregation-in-java","status":"publish","type":"post","link":"https:\/\/techvidvan.com\/tutorials\/aggregation-in-java\/","title":{"rendered":"Aggregation In Java"},"content":{"rendered":"<p>Aggregation is a key idea in the field of Object-Oriented Programming and allows for the development of intricate interactions between objects in Java. As a class, you&#8217;ll be able to simulate situations from the real world. The &#8220;part&#8221; or component, which makes up the &#8220;whole&#8221; or container, is made up of or contains instances of a different class. Based on this relationship, modular, reusable, and maintainable software systems are produced as a result.<\/p>\n<h2>What is aggregation in Java?<\/h2>\n<ul>\n<li>When a reference to a distinct item B appears in object A, or if it is conceivable to claim that object A shares HASA with another object B, object A is referred to as an aggregation.<\/li>\n<li>Aggregation aids in the reuse of the code. The Object B&#8217;s utility functions could<\/li>\n<\/ul>\n<p><strong>Example:<\/strong><\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">Public class Speed{}\nPublic class Techvidvan{}\n\npublic class Van extends Techvidvan {\n   private Speed sp;\n}<\/pre>\n<ul>\n<li>Here, the speed category Van HASA Speed was displayed. Being able to reuse the Speed class across different applications is made possible by not having to include the full Speed-related code inside the Van class.<\/li>\n<li>When using the ObjectOriented functionality, users don&#8217;t have to worry about which object is actually functioning.<\/li>\n<li>To do this, the Van class conceals the implementation&#8217;s specifics from Van class consumers.<\/li>\n<\/ul>\n<p><a href=\"https:\/\/techvidvan.com\/tutorials\/wp-content\/uploads\/sites\/2\/2023\/09\/circle-operation-.webp\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-88945\" src=\"https:\/\/techvidvan.com\/tutorials\/wp-content\/uploads\/sites\/2\/2023\/09\/circle-operation-.webp\" alt=\"circle operation\" width=\"500\" height=\"199\" \/><\/a><\/p>\n<ul>\n<li>In essence, users will ask the Van class to carry out a given task, and if it is carried out independently or in conjunction with another class, it will execute that work.<\/li>\n<li>This idea of including an object to complete a task is known as aggregation.<\/li>\n<\/ul>\n<h3>Why Do We Use Aggregation?<\/h3>\n<ul>\n<li>As you mentioned, the term &#8220;aggregation&#8221; is used to refer to an entire collection of objects.<\/li>\n<li>Although that is the program&#8217;s main objective, there is another crucial advantage: it makes it simpler for us to recognize specific components so that we can be referred to as a whole.<\/li>\n<li>Each item can be listed by its index using the aggregation process to get a collection of sorted objects. If true, it&#8217;s a brilliant idea.<\/li>\n<\/ul>\n<h3>When use Aggregation?<\/h3>\n<ul>\n<li>When there is no isa relationship, code reuse is also best achieved by aggregation.<\/li>\n<li>Only if a relationship is ongoing in relation to the object concerned throughout its lifetime should inheritance be used, or aggregation would have been more appropriate.<\/li>\n<\/ul>\n<h3>Learning the most important example of aggregation:<\/h3>\n<p>The employee has an address object in this example that contains its own info, such as city, state, country, etc. In such case, the relationship is Employee HAS-A address.<\/p>\n<h3>Aggregation Examples<\/h3>\n<p>In addition to arrays, there are a number of aggregation mechanisms used by programming languages.<\/p>\n<p><a href=\"https:\/\/techvidvan.com\/tutorials\/wp-content\/uploads\/sites\/2\/2023\/09\/Aggregation-Examples-1.webp\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-88948\" src=\"https:\/\/techvidvan.com\/tutorials\/wp-content\/uploads\/sites\/2\/2023\/09\/Aggregation-Examples-1.webp\" alt=\"Aggregation Examples\" width=\"500\" height=\"413\" \/><\/a><\/p>\n<h3>How does data aggregation help?<\/h3>\n<ul>\n<li>Aggregation platforms are responsible for collecting, processing and even presenting data.<\/li>\n<li>It is a key part of data integration. Aggregations help to aggregate data from different sources as well as from different heterogeneous and diverse sources.<\/li>\n<li>This will make the information more valuable.<\/li>\n<li>Data sourced from the best data integration platforms can be tracked to create an audit trail. You can go back in time from where the data was collected.<\/li>\n<li>It should be noted that summary information is not limited to numbers. For this purpose, data aggregation can be done manually or with software specifically designed for this purpose.<\/li>\n<\/ul>\n<h3>What are the steps in data aggregation?<\/h3>\n<ul>\n<li>To achieve database aggregation, you need to have a data integration platform that helps gather data from more than one source.<\/li>\n<li>The next step is data processing for data enrichment. We have reached the stage where data is aggregated.<\/li>\n<li>Statistical analysis is performed here for the latest information.<\/li>\n<\/ul>\n<h3>Why data aggregation is so useful:<\/h3>\n<ul>\n<li>Identifying the avalanche of information in the age of big data is not as simple as it seems.<\/li>\n<li>Data aggregation can be useful in this context.<\/li>\n<li>Aggregation collects data from different sources and consolidates all this information in one place.<\/li>\n<li>Data aggregation software tools are relied upon by companies that need to gain market intelligence.<\/li>\n<\/ul>\n<p><strong>The following tools can be used to perform these activities:<\/strong><\/p>\n<ul>\n<li><strong>Data extraction-<\/strong> This means that in order to meet the needs of a particular business, the appropriate data should be targeted or isolated from the aggregated data.<\/li>\n<li><strong>Modification-<\/strong> Edit or transform data to conform to a prescribed format for analysis.<\/li>\n<li><strong>Data visualization and analysis\u2013<\/strong>This combined data can be used to develop business intelligence or guide decision-making once it is analyzed. With these metrics, you can easily evaluate where improvements are needed in your business.<\/li>\n<\/ul>\n<p>Consider a restaurant as an example. QuickDining may use competitive research, price tracking, market intelligence, average order times and other data it collects through the data integration platform for its own benefit.<\/p>\n<p>In this use, data aggregation is a bonus for business intelligence. Comprehensive aggregated data can help leaders make informed decisions. It is an effective way for companies to gain critical insight into their customers.<\/p>\n<p>Combining data from disconnected, siled sources like social media, your CRM, and even web analytics allows businesses to gain deep insight.<\/p>\n<h3>Benefits of raw data aggregation:<\/h3>\n<ul>\n<li>It is very difficult to work with large amounts of raw data without a coherent format.<\/li>\n<li>And it doesn&#8217;t provide any quantifiable information, so it won&#8217;t help your business.<\/li>\n<li>In contrast, aggregated data tells you a story in which you are the main character.<\/li>\n<\/ul>\n<h3>Conclusion<\/h3>\n<p>Let&#8217;s do it again. In short, aggregation is the process by which we aggregate everything into one. When we describe a group of items in general and an individual piece as part of a whole, we use aggregation. There are many examples of aggregation in C programming languages.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Aggregation is a key idea in the field of Object-Oriented Programming and allows for the development of intricate interactions between objects in Java. As a class, you&#8217;ll be able to simulate situations from the&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":88820,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[183],"tags":[2781,296,5296,299,5297,5298],"class_list":["post-88817","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-java","tag-aggregation-in-java","tag-java","tag-java-aggregation","tag-java-tutorial","tag-what-is-aggregation-in-java","tag-why-we-use-aggregation"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Aggregation In Java - TechVidvan<\/title>\n<meta name=\"description\" content=\"When we describe a group of items in general and an individual piece as part of a whole, we use aggregation.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/techvidvan.com\/tutorials\/aggregation-in-java\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Aggregation In Java - 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