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<h1 class="title-container" >
PdxSerializable Example
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<h2 id="order.cpp:">Order.cpp:</h2>
<p>Front matter:</p>
<pre class="highlight plaintext"><code>#include "Order.hpp"
</code></pre>
<p><code>PdxReader</code> &amp; <code>PdxWriter</code> are used for <code>fromData()</code> &amp; <code>toData()</code>:</p>
<pre class="highlight plaintext"><code>#include &lt;geode/PdxReader.hpp&gt;
#include &lt;geode/PdxWriter.hpp&gt;
namespace customserializable {
</code></pre>
<ul>
<li>Must provide <code>fromData()</code> and <code>toData()</code>.</li>
<li><p>Specify the keys in the same order in <code>fromData()</code> and <code>toData()</code>. Use <code>PdxReader</code> and <code>PdxWriter</code>:</p>
<pre class="highlight plaintext"><code>void Order::fromData(PdxReader&amp; pdxReader) {
order_id_ = static_cast&lt;uint32_t&gt;(pdxReader.readLong(ORDER_ID_KEY_));
name_ = pdxReader.readString(NAME_KEY_);
quantity_ = static_cast&lt;uint16_t&gt;(pdxReader.readInt(QUANTITY_KEY_));
}
void Order::toData(PdxWriter&amp; pdxWriter) const {
pdxWriter.writeLong(ORDER_ID_KEY_, order_id_);
pdxWriter.markIdentityField(ORDER_ID_KEY_);
pdxWriter.writeString(NAME_KEY_, name_);
pdxWriter.markIdentityField(NAME_KEY_);
pdxWriter.writeInt(QUANTITY_KEY_, quantity_);
pdxWriter.markIdentityField(QUANTITY_KEY_);
}
</code></pre></li>
</ul>
<p>Optionally override and add detailed methods as needed. In this example, we override <code>toString()</code> and implement <code>size()</code> and <code>classname()</code>.</p>
<pre class="highlight plaintext"><code>std::string Order::toString() const {
return "OrderID: " + std::to_string(order_id_) + " Product Name: " + name_ +
" Quantity: " + std::to_string(quantity_);
}
size_t Order::objectSize() const {
auto objectSize = sizeof(Order);
objectSize += name_.capacity();
return objectSize;
}
const std::string&amp; Order::getClassName() const {
static const std::string CLASS_NAME = "com.example.Order";
return CLASS_NAME;
}
</code></pre>
<p>Provide a constructor in a parameter-less wrapper that can be called to create a prototypical instance (called <code>createDeserializable()</code> here).</p>
<pre class="highlight plaintext"><code>std::shared_ptr&lt;PdxSerializable&gt; Order::createDeserializable() {
return std::make_shared&lt;Order&gt;(0, "", 0);
}
const std::string Order::ORDER_ID_KEY_ = "order_id";
const std::string Order::NAME_KEY_ = "name";
const std::string Order::QUANTITY_KEY_ = "quantity";
} // namespace customserializable
</code></pre>
<h2 id="main.cpp">main.cpp</h2>
<p>Front matter. You will need <code>TypeRegistry</code> to register your PdxSerializable class. Bring in the customary includes for I/O and cache, pool, and region creation.</p>
<pre class="highlight plaintext"><code>#include &lt;iostream&gt;
#include &lt;sstream&gt;
#include &lt;geode/CacheFactory.hpp&gt;
#include &lt;geode/PoolManager.hpp&gt;
#include &lt;geode/RegionFactory.hpp&gt;
#include &lt;geode/RegionShortcut.hpp&gt;
#include &lt;geode/TypeRegistry.hpp&gt;
#include "Order.hpp"
using namespace apache::geode::client;
using namespace customserializable;
int main(int argc, char** argv) {
auto cacheFactory = CacheFactory();
cacheFactory.set("log-level", "none");
auto cache = cacheFactory.create();
auto poolFactory = cache.getPoolManager().createFactory();
poolFactory.addLocator("localhost", 10334);
auto pool = poolFactory.create("pool");
auto regionFactory = cache.createRegionFactory(RegionShortcut::PROXY);
auto region = regionFactory.setPoolName("pool").create("custom_orders");
cache.getTypeRegistry().registerPdxType(Order::createDeserializable);
std::cout &lt;&lt; "Create orders" &lt;&lt; std::endl;
auto order1 = std::make_shared&lt;Order&gt;(1, "product x", 23);
auto order2 = std::make_shared&lt;Order&gt;(2, "product y", 37);
std::cout &lt;&lt; "Storing orders in the region" &lt;&lt; std::endl;
region-&gt;put("Customer1", order1);
region-&gt;put("Customer2", order2);
std::cout &lt;&lt; "Getting the orders from the region" &lt;&lt; std::endl;
if (auto order1retrieved =
std::dynamic_pointer_cast&lt;Order&gt;(region-&gt;get("Customer1"))) {
std::cout &lt;&lt; "OrderID: " &lt;&lt; order1retrieved-&gt;getOrderId() &lt;&lt; std::endl;
std::cout &lt;&lt; "Product Name: " &lt;&lt; order1retrieved-&gt;getName() &lt;&lt; std::endl;
std::cout &lt;&lt; "Quantity: " &lt;&lt; order1retrieved-&gt;getQuantity() &lt;&lt; std::endl;
} else {
std::cout &lt;&lt; "Order 1 not found." &lt;&lt; std::endl;
}
if (auto order2retrieved = region-&gt;get("Customer2")) {
std::cout &lt;&lt; order2retrieved-&gt;toString() &lt;&lt; std::endl;
} else {
std::cout &lt;&lt; "Order 2 not found." &lt;&lt; std::endl;
}
cache.close();
}
</code></pre>
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