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<h2 title="Interface DiscoverySpiListener" class="title">Interface DiscoverySpiListener</h2>
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<pre>public interface <span class="strong">DiscoverySpiListener</span></pre>
<div class="block">Listener for grid node discovery events. See
<a href="../../../../../org/apache/ignite/spi/discovery/DiscoverySpi.html" title="interface in org.apache.ignite.spi.discovery"><code>DiscoverySpi</code></a> for information on how grid nodes get discovered.</div>
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<h3>Method Summary</h3>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/ignite/spi/discovery/DiscoverySpiListener.html#onDiscovery(int, long, org.apache.ignite.cluster.ClusterNode, java.util.Collection, java.util.Map, java.io.Serializable)">onDiscovery</a></strong>(int&nbsp;type,
long&nbsp;topVer,
<a href="../../../../../org/apache/ignite/cluster/ClusterNode.html" title="interface in org.apache.ignite.cluster">ClusterNode</a>&nbsp;node,
<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><span class='angle_bracket'>&lt;</span><a href="../../../../../org/apache/ignite/cluster/ClusterNode.html" title="interface in org.apache.ignite.cluster">ClusterNode</a><span class='angle_bracket'>&gt;</span>&nbsp;topSnapshot,
<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><span class='angle_bracket'>&lt;</span><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><span class='angle_bracket'>&lt;</span><a href="../../../../../org/apache/ignite/cluster/ClusterNode.html" title="interface in org.apache.ignite.cluster">ClusterNode</a><span class='angle_bracket'>&gt;</span><span class='angle_bracket'>&gt;</span>&nbsp;topHist,
<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>&nbsp;data)</code>
<div class="block">Notification for grid node discovery events.</div>
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<h4>onDiscovery</h4>
<pre>void&nbsp;onDiscovery(int&nbsp;type,
long&nbsp;topVer,
<a href="../../../../../org/apache/ignite/cluster/ClusterNode.html" title="interface in org.apache.ignite.cluster">ClusterNode</a>&nbsp;node,
<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><span class='angle_bracket'>&lt;</span><a href="../../../../../org/apache/ignite/cluster/ClusterNode.html" title="interface in org.apache.ignite.cluster">ClusterNode</a><span class='angle_bracket'>&gt;</span>&nbsp;topSnapshot,
@Nullable
<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><span class='angle_bracket'>&lt;</span><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><span class='angle_bracket'>&lt;</span><a href="../../../../../org/apache/ignite/cluster/ClusterNode.html" title="interface in org.apache.ignite.cluster">ClusterNode</a><span class='angle_bracket'>&gt;</span><span class='angle_bracket'>&gt;</span>&nbsp;topHist,
@Nullable
<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>&nbsp;data)</pre>
<div class="block">Notification for grid node discovery events.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>type</code> - Node discovery event type. See <a href="../../../../../org/apache/ignite/events/DiscoveryEvent.html" title="class in org.apache.ignite.events"><code>DiscoveryEvent</code></a></dd><dd><code>topVer</code> - Topology version or <code>0</code> if configured discovery SPI implementation
does not support versioning.</dd><dd><code>node</code> - Node affected (e.g. newly joined node, left node, failed node or local node).</dd><dd><code>topSnapshot</code> - Topology snapshot after event has been occurred (e.g. if event is
<code>EVT_NODE_JOINED</code>, then joined node will be in snapshot).</dd><dd><code>topHist</code> - Topology snapshots history.</dd><dd><code>data</code> - Data for custom event.</dd></dl>
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