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| <div class="subTitle">org.apache.twill.internal</div> |
| <h2 title="Class ZKMessages" class="title">Class ZKMessages</h2> |
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| <pre>public final class <span class="typeNameLabel">ZKMessages</span> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre> |
| <div class="block">Helper class to send messages to remote instances using Apache Zookeeper watch mechanism.</div> |
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| <td class="colFirst"><code>static <V> void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/twill/internal/ZKMessages.html#sendMessage-org.apache.twill.zookeeper.ZKClient-java.lang.String-org.apache.twill.internal.state.Message-com.google.common.util.concurrent.SettableFuture-V-">sendMessage</a></span>(<a href="../../../../org/apache/twill/zookeeper/ZKClient.html" title="interface in org.apache.twill.zookeeper">ZKClient</a> zkClient, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> messagePathPrefix, |
| org.apache.twill.internal.state.Message message, |
| com.google.common.util.concurrent.SettableFuture<V> completion, |
| V completionResult)</code> |
| <div class="block">Creates a message node in zookeeper.</div> |
| </td> |
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| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static <V> com.google.common.util.concurrent.ListenableFuture<V></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/twill/internal/ZKMessages.html#sendMessage-org.apache.twill.zookeeper.ZKClient-java.lang.String-org.apache.twill.internal.state.Message-V-">sendMessage</a></span>(<a href="../../../../org/apache/twill/zookeeper/ZKClient.html" title="interface in org.apache.twill.zookeeper">ZKClient</a> zkClient, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> messagePathPrefix, |
| org.apache.twill.internal.state.Message message, |
| V completionResult)</code> |
| <div class="block">Creates a message node in zookeeper.</div> |
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| <h3>Method Detail</h3> |
| <a name="sendMessage-org.apache.twill.zookeeper.ZKClient-java.lang.String-org.apache.twill.internal.state.Message-java.lang.Object-"> |
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| <h4>sendMessage</h4> |
| <pre>public static <V> com.google.common.util.concurrent.ListenableFuture<V> sendMessage(<a href="../../../../org/apache/twill/zookeeper/ZKClient.html" title="interface in org.apache.twill.zookeeper">ZKClient</a> zkClient, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> messagePathPrefix, |
| org.apache.twill.internal.state.Message message, |
| V completionResult)</pre> |
| <div class="block">Creates a message node in zookeeper. The message node created is a PERSISTENT_SEQUENTIAL node.</div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>V</code> - Type of the completion result.</dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>zkClient</code> - The ZooKeeper client for interacting with ZooKeeper.</dd> |
| <dd><code>messagePathPrefix</code> - ZooKeeper path prefix for the message node.</dd> |
| <dd><code>message</code> - The <code>Message</code> object for the content of the message node.</dd> |
| <dd><code>completionResult</code> - Object to set to the result future when the message is processed.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>A <code>ListenableFuture</code> that will be completed when the message is consumed, which indicated |
| by deletion of the node. If there is exception during the process, it will be reflected |
| to the future returned.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="sendMessage-org.apache.twill.zookeeper.ZKClient-java.lang.String-org.apache.twill.internal.state.Message-com.google.common.util.concurrent.SettableFuture-java.lang.Object-"> |
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| <h4>sendMessage</h4> |
| <pre>public static <V> void sendMessage(<a href="../../../../org/apache/twill/zookeeper/ZKClient.html" title="interface in org.apache.twill.zookeeper">ZKClient</a> zkClient, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> messagePathPrefix, |
| org.apache.twill.internal.state.Message message, |
| com.google.common.util.concurrent.SettableFuture<V> completion, |
| V completionResult)</pre> |
| <div class="block">Creates a message node in zookeeper. The message node created is a PERSISTENT_SEQUENTIAL node.</div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>V</code> - Type of the completion result.</dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>zkClient</code> - The ZooKeeper client for interacting with ZooKeeper.</dd> |
| <dd><code>messagePathPrefix</code> - ZooKeeper path prefix for the message node.</dd> |
| <dd><code>message</code> - The <code>Message</code> object for the content of the message node.</dd> |
| <dd><code>completion</code> - A <code>SettableFuture</code> to reflect the result of message process completion.</dd> |
| <dd><code>completionResult</code> - Object to set to the result future when the message is processed.</dd> |
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