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| <title>Java Powered - Apache Ignite</title> |
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| <div id="wrapper"> |
| <!--#include virtual="/includes/header.html" --> |
| |
| <main id="main" role="main" class="container"> |
| <section id="java" class="page-section"> |
| <h1 class="first">Powered by Java</h1> |
| <div class="col-sm-12 col-md-12 col-xs-12" style="padding:0 0 20px 0;"> |
| <div class="col-sm-6 col-md-8 col-xs-12" style="padding-left:0; padding-right:0"> |
| <p> |
| Ignite In-Memory Data Fabric is developed predominantly in Java, and provides native support for other languages. |
| It is designed to deliver uncompromised performance for a wide set of in-memory computing use cases - |
| from high performance computing, to the industry most advanced data grid, CEP, and data streaming. |
| </p> |
| |
| <p> |
| Ignite data grid is an <b>in-memory key-value store</b> which enables caching data in-memory within distributed clusters. It supports |
| <span style="white-space: nowrap"><a href="https://apacheignite.readme.io/docs/transactions" target="_blank">ACID Transactions</a></span>, |
| <a href="https://apacheignite-sql.readme.io/docs/overview" target="_blank">SQL Queries</a>, |
| <a href="https://apacheignite-sql.readme.io/docs/distributed-joins" target="_blank">Distributed SQL Joins</a>, |
| <a href="https://apacheignite.readme.io/docs/messaging" target="_blank">Messaging</a> and <a href="https://apacheignite.readme.io/docs/events" target="_blank">Events</a>, |
| <a href="https://apacheignite.readme.io/docs/streaming--cep" target="_blank">Data Streaming</a>, and more. |
| </p> |
| <p> |
| Ignite also supports <a href="https://apacheignite.readme.io/docs/binary-marshaller" target="_blank">Cross-platform Interoperability</a> |
| by writing objects to cache in a common binary format allowing application to seamlessly interoperate between <b>Java</b>, <b>.NET</b> and <b>C++</b>. |
| </p> |
| </div> |
| <div class="col-sm-6 col-md-4 col-xs-12" style="padding-right:0"> |
| <img class="img-responsive" src="/images/java.png" width="300" style="float:right;"/> |
| </div> |
| </div> |
| |
| <div class="code-examples"> |
| <div class="page-heading">Code Examples:</div> |
| <!-- Nav tabs --> |
| <ul id="messaging-examples" class="nav nav-tabs"> |
| <li class="active"><a href="#put-get" aria-controls="home" data-toggle="tab">Put and Get</a></li> |
| <li><a href="#transactions" aria-controls="profile" data-toggle="tab">Transactions</a></li> |
| <li><a href="#sql-query" aria-controls="profile" data-toggle="tab">SQL Query</a></li> |
| <li><a href="#sql-join" aria-controls="profile" data-toggle="tab">SQL Join</a></li> |
| </ul> |
| |
| <!-- Tab panes --> |
| <div class="tab-content"> |
| <div class="tab-pane active" id="put-get"> |
| <pre class="brush:java"> |
| Ignite ignite = Ignition.ignite(); |
| |
| IgniteCache<Integer, String> cache = ignite.cache(CACHE_NAME); |
| |
| // Store keys in cache (values will end up on different cache nodes). |
| for (int i = 0; i < 10; i++) |
| cache.put(i, Integer.toString(i)); |
| |
| for (int i = 0; i < 10; i++) |
| System.out.println("Got [key=" + i + ", val=" + cache.get(i) + ']'); |
| </pre> |
| </div> |
| <div class="tab-pane" id="transactions"> |
| <pre class="brush:java"> |
| try (Transaction tx = transactions.txStart()) { |
| Integer hello = cache.get("Hello"); |
| |
| if (hello == 1) |
| cache.put("Hello", 11); |
| |
| cache.put("World", 22); |
| |
| tx.commit(); |
| } |
| </pre> |
| </div> |
| <div class="tab-pane" id="sql-query"> |
| <pre class="brush:java"> |
| IgniteCache<Long, Person> cache = ignite.cache("personCache"); |
| |
| SqlQuery sql = new SqlQuery(Person.class, "salary > ?"); |
| |
| // Find persons earning more than 1,000. |
| try (QueryCursor<Entry<Long, Person>> cursor = cache.query(sql.setArgs(1000))) { |
| for (Entry<Long, Person> e : cursor) |
| System.out.println(e.getValue().toString()); |
| } |
| </pre> |
| </div> |
| <div class="tab-pane" id="sql-join"> |
| <pre class="brush:java"> |
| IgniteCache<Long, Person> cache = ignite.cache("personCache"); |
| |
| // SQL join on Person and Organization. |
| SqlQuery sql = new SqlQuery(Person.class, |
| "from Person as p, \"orgCache\".Organization as org " |
| + "where p.orgId = org.id " |
| + "and lower(org.name) = lower(?)"); |
| |
| // Find all persons working for Ignite organization. |
| try (QueryCursor<Entry<Long, Person>> cursor = cache.query(sql.setArgs("Ignite"))) { |
| for (Entry<Long, Person> e : cursor) |
| System.out.println(e.getValue().toString()); |
| } |
| </pre> |
| </div> |
| </div> |
| </div> |
| <div class="page-heading">GitHub Examples:</div> |
| <p> |
| Also see <a href="https://github.com/apache/ignite/tree/master/examples" target="github">Ignite Java examples</a> |
| available on GitHub. |
| </p> |
| |
| <p> |
| <a href="https://apacheignite.readme.io/docs/getting-started" target="_blank"> |
| <b>Get started with Ignite Java <i class="fa fa-angle-double-right"></i></b> |
| </a> |
| </p> |
| </section> |
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