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<h2 title="Interface DiscoverySpiDataExchange" class="title">Interface DiscoverySpiDataExchange</h2>
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<pre>public interface <span class="strong">DiscoverySpiDataExchange</span></pre>
<div class="block">Handler for initial data exchange between Ignite nodes. Data exchange
is initiated by a new node when it tries to join topology and finishes
before it actually joins.</div>
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<td class="colFirst"><code><a href="http://docs.oracle.com/javase/7/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a>&gt;</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/ignite/spi/discovery/DiscoverySpiDataExchange.html#collect(java.util.UUID)">collect</a></strong>(<a href="http://docs.oracle.com/javase/7/docs/api/java/util/UUID.html?is-external=true" title="class or interface in java.util">UUID</a>&nbsp;joiningNodeId)</code>
<div class="block">Collects data from all components.</div>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/ignite/spi/discovery/DiscoverySpiDataExchange.html#onExchange(java.util.UUID,%20java.util.UUID,%20java.util.Map)">onExchange</a></strong>(<a href="http://docs.oracle.com/javase/7/docs/api/java/util/UUID.html?is-external=true" title="class or interface in java.util">UUID</a>&nbsp;joiningNodeId,
<a href="http://docs.oracle.com/javase/7/docs/api/java/util/UUID.html?is-external=true" title="class or interface in java.util">UUID</a>&nbsp;nodeId,
<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a>&gt;&nbsp;data)</code>
<div class="block">Notifies discovery manager about data received from remote node.</div>
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<h4>collect</h4>
<pre><a href="http://docs.oracle.com/javase/7/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a>&gt;&nbsp;collect(<a href="http://docs.oracle.com/javase/7/docs/api/java/util/UUID.html?is-external=true" title="class or interface in java.util">UUID</a>&nbsp;joiningNodeId)</pre>
<div class="block">Collects data from all components. This method is called both
on new node that joins topology to transfer its data to existing
nodes and on all existing nodes to transfer their data to new node.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>joiningNodeId</code> - ID of new node that joins topology.</dd>
<dt><span class="strong">Returns:</span></dt><dd>Collection of discovery data objects from different components.</dd></dl>
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<h4>onExchange</h4>
<pre>void&nbsp;onExchange(<a href="http://docs.oracle.com/javase/7/docs/api/java/util/UUID.html?is-external=true" title="class or interface in java.util">UUID</a>&nbsp;joiningNodeId,
<a href="http://docs.oracle.com/javase/7/docs/api/java/util/UUID.html?is-external=true" title="class or interface in java.util">UUID</a>&nbsp;nodeId,
<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a>&gt;&nbsp;data)</pre>
<div class="block">Notifies discovery manager about data received from remote node.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>joiningNodeId</code> - ID of new node that joins topology.</dd><dd><code>nodeId</code> - ID of the node provided data.</dd><dd><code>data</code> - Collection of discovery data objects from different components.</dd></dl>
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