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<title>What’s included? — R3 Corda latest documentation</title>
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<a href="index.html" class="icon icon-home"> R3 Corda
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<p class="caption"><span class="caption-text">Overview</span></p>
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<li class="toctree-l1 current"><a class="current reference internal" href="#">What’s included?</a><ul>
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<li class="toctree-l1"><a class="reference internal" href="creating-a-cordapp.html">Creating a Cordapp</a></li>
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<li class="toctree-l1"><a class="reference internal" href="creating-a-cordapp.html#gradle-plugins-for-cordapps">Gradle Plugins for Cordapps</a></li>
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<li class="toctree-l1"><a class="reference internal" href="oracles.html">Writing oracle services</a></li>
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<li class="toctree-l1"><a class="reference internal" href="tutorial-attachments.html">Using attachments</a></li>
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<li class="toctree-l1"><a class="reference internal" href="initialmarginagreement.html">Initial Margin Agreements</a></li>
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<li class="toctree-l1"><a class="reference internal" href="secure-coding-guidelines.html">Secure coding guidelines</a></li>
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<div class="section" id="what-s-included">
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<h1>What’s included?<a class="headerlink" href="#what-s-included" title="Permalink to this headline">¶</a></h1>
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<p>The Corda prototype currently includes:</p>
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<ul class="simple">
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<li>A peer to peer network with message persistence and delivery retries.</li>
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<li>Key data structures for defining contracts and states.</li>
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<li>Smart contracts, which you can find in the <a class="reference internal" href="contract-catalogue.html"><span class="doc">Contract catalogue</span></a>.</li>
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<li>Algorithms that work with them, such as serialising, hashing, signing, and verification of the signatures.</li>
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<li>API documentation and tutorials (what you’re reading).</li>
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<li>A business process orchestration framework.</li>
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<li>Notary infrastructure for precise timestamping, and elimination of double spending without a blockchain.</li>
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<li>A simple REST API, and a web app demo that uses it to present a frontend for IRS trading.</li>
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</ul>
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<p>Some things it does not currently include but should gain later are:</p>
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<ul class="simple">
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<li>Sandboxing, distribution or publication of smart contract code</li>
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<li>A user interface for administration</li>
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</ul>
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<p>The prototype’s goal is rapid exploration of ideas. Therefore in places it takes shortcuts that a production system
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would not in order to boost productivity:</p>
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<ul class="simple">
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<li>It uses an object graph serialization framework instead of a well specified, vendor neutral protocol.</li>
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<li>There’s currently no permissioning framework.</li>
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<li>Some privacy techniques aren’t implemented yet.</li>
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<li>It uses an embedded SQL database and doesn’t yet have connectivity support for mainstream SQL vendors (Oracle,
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Postgres, MySQL, SQL Server etc).</li>
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</ul>
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<div class="section" id="kotlin">
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<h2>Kotlin<a class="headerlink" href="#kotlin" title="Permalink to this headline">¶</a></h2>
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<p>Corda is written in a language called <a class="reference external" href="https://kotlinlang.org/">Kotlin</a>. Kotlin is a language that targets the JVM
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and can be thought of as a simpler Scala, with much better Java interop. It is developed by and has commercial support
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from JetBrains, the makers of the IntelliJ IDE and other popular developer tools.</p>
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<p>As Kotlin is very new, without a doubt you have not encountered it before. Don’t worry: it is designed as a better
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Java for industrial use and as such, the syntax was carefully designed to be readable even to people who don’t know
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the language, after only a few minutes of introduction.</p>
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<p>Due to the seamless Java interop the use of Kotlin to extend the platform is <em>not</em> required and the tutorial shows how
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to write contracts in both Kotlin and Java. You can <a class="reference external" href="https://medium.com/@octskyward/why-kotlin-is-my-next-programming-language-c25c001e26e3">read more about why Kotlin is a potentially strong successor to Java here</a>.</p>
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