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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.activemq.artemis.api.core</a></div> |
| <h2 title="Interface BroadcastEndpoint" class="title">Interface BroadcastEndpoint</h2> |
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| <dt>All Known Implementing Classes:</dt> |
| <dd><code><a href="JGroupsBroadcastEndpoint.html" title="class in org.apache.activemq.artemis.api.core">JGroupsBroadcastEndpoint</a></code>, <code><a href="JGroupsChannelBroadcastEndpoint.html" title="class in org.apache.activemq.artemis.api.core">JGroupsChannelBroadcastEndpoint</a></code>, <code><a href="JGroupsFileBroadcastEndpoint.html" title="class in org.apache.activemq.artemis.api.core">JGroupsFileBroadcastEndpoint</a></code></dd> |
| </dl> |
| <hr> |
| <pre>public interface <span class="typeNameLabel">BroadcastEndpoint</span></pre> |
| <div class="block">BroadcastEndpint is used in BroadcastGroups and DiscoveryGroups for topology updates. |
| <p> |
| A BroadcastEndpoint can perform one of the two following tasks: |
| <ul> |
| <li>when being used in BroadcastGroups, it broadcasts connector informations</li> |
| <li>when being used in DiscoveryGroups, it receives broadcasts</li> |
| </ul> |
| <p> |
| The two tasks are mutual exclusive, meaning a BroadcastEndpoint can either be a broadcaster |
| or a receiver, but not both. |
| <p> |
| It is an abstraction of various concrete broadcasting mechanisms. Different implementations |
| of this interface may use different broadcasting techniques like UDP multicasting or |
| JGroups channels.</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="JGroupsBroadcastEndpoint.html" title="class in org.apache.activemq.artemis.api.core"><code>JGroupsBroadcastEndpoint</code></a></dd> |
| </dl> |
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| <h3>Method Summary</h3> |
| <table class="memberSummary"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Method</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#broadcast(byte%5B%5D)">broadcast</a></span>​(byte[] data)</code></th> |
| <td class="colLast"> |
| <div class="block">Broadcasting data to the cluster.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#close(boolean)">close</a></span>​(boolean isBroadcast)</code></th> |
| <td class="colLast"> |
| <div class="block">Close the endpoint.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#openBroadcaster()">openBroadcaster</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">This method initializes a BroadcastEndpint as |
| a broadcaster.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#openClient()">openClient</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">This method initializes a BroadcastEndpoint as |
| a receiving end for broadcasts.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>byte[]</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#receiveBroadcast()">receiveBroadcast</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Receives the broadcast data.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>byte[]</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#receiveBroadcast(long,java.util.concurrent.TimeUnit)">receiveBroadcast</a></span>​(long time, |
| <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/concurrent/TimeUnit.html?is-external=true" title="class or interface in java.util.concurrent" class="externalLink">TimeUnit</a> unit)</code></th> |
| <td class="colLast"> |
| <div class="block">Receives the broadcast data with a timeout.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| </section> |
| </li> |
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| <h3>Method Detail</h3> |
| <a id="openClient()"> |
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| <h4>openClient</h4> |
| <pre class="methodSignature">void openClient() |
| throws <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Exception.html?is-external=true" title="class or interface in java.lang" class="externalLink">Exception</a></pre> |
| <div class="block">This method initializes a BroadcastEndpoint as |
| a receiving end for broadcasts. After that data can be |
| received using one of its receiveBroadcast() methods.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Exception.html?is-external=true" title="class or interface in java.lang" class="externalLink">Exception</a></code></dd> |
| </dl> |
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| <h4>openBroadcaster</h4> |
| <pre class="methodSignature">void openBroadcaster() |
| throws <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Exception.html?is-external=true" title="class or interface in java.lang" class="externalLink">Exception</a></pre> |
| <div class="block">This method initializes a BroadcastEndpint as |
| a broadcaster. After that data can be sent |
| via its broadcast() method.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Exception.html?is-external=true" title="class or interface in java.lang" class="externalLink">Exception</a></code></dd> |
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| </li> |
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| <h4>close</h4> |
| <pre class="methodSignature">void close​(boolean isBroadcast) |
| throws <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Exception.html?is-external=true" title="class or interface in java.lang" class="externalLink">Exception</a></pre> |
| <div class="block">Close the endpoint. Any related resources should |
| be cleaned up in this method.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>isBroadcast</code> - : indicates whether this endpoint serves as a broadcast or not.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Exception.html?is-external=true" title="class or interface in java.lang" class="externalLink">Exception</a></code></dd> |
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| <h4>broadcast</h4> |
| <pre class="methodSignature">void broadcast​(byte[] data) |
| throws <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Exception.html?is-external=true" title="class or interface in java.lang" class="externalLink">Exception</a></pre> |
| <div class="block">Broadcasting data to the cluster.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>data</code> - : a byte array containing the data.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Exception.html?is-external=true" title="class or interface in java.lang" class="externalLink">Exception</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>receiveBroadcast</h4> |
| <pre class="methodSignature">byte[] receiveBroadcast() |
| throws <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Exception.html?is-external=true" title="class or interface in java.lang" class="externalLink">Exception</a></pre> |
| <div class="block">Receives the broadcast data. It blocks until data is |
| available.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the received data as byte array.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Exception.html?is-external=true" title="class or interface in java.lang" class="externalLink">Exception</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="receiveBroadcast(long,java.util.concurrent.TimeUnit)"> |
| <!-- --> |
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| <h4>receiveBroadcast</h4> |
| <pre class="methodSignature">byte[] receiveBroadcast​(long time, |
| <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/concurrent/TimeUnit.html?is-external=true" title="class or interface in java.util.concurrent" class="externalLink">TimeUnit</a> unit) |
| throws <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Exception.html?is-external=true" title="class or interface in java.lang" class="externalLink">Exception</a></pre> |
| <div class="block">Receives the broadcast data with a timeout. It blocks until either |
| the data is available or the timeout is reached, whichever comes first.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>time</code> - : how long the method should wait for the data to arrive.</dd> |
| <dd><code>unit</code> - : unit of the time.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a byte array if data is arrived within the timeout, or null if no data |
| is available after the timeout.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Exception.html?is-external=true" title="class or interface in java.lang" class="externalLink">Exception</a></code></dd> |
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