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<div class="subTitle">gobblin.source.extractor</div>
<h2 title="Class WatermarkSerializerHelper" class="title">Class WatermarkSerializerHelper</h2>
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<li>gobblin.source.extractor.WatermarkSerializerHelper</li>
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<pre>public class <span class="typeNameLabel">WatermarkSerializerHelper</span>
extends <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre>
<div class="block">Provides default implementation for converting a <a href="../../../gobblin/source/extractor/Watermark.html" title="interface in gobblin.source.extractor"><code>Watermark</code></a> to a <code>JsonElement</code>, and vice versa. The
class uses <a href="https://code.google.com/p/google-gson/">GSON</a> to achieve this. This class provides a default
way to serialize and de-serialize <a href="../../../gobblin/source/extractor/Watermark.html" title="interface in gobblin.source.extractor"><code>Watermark</code></a>s, and is useful for implementing the <a href="../../../gobblin/source/extractor/Watermark.html#toJson--"><code>Watermark.toJson()</code></a>
method.</div>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../gobblin/source/extractor/WatermarkSerializerHelper.html#WatermarkSerializerHelper--">WatermarkSerializerHelper</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>static &lt;T extends <a href="../../../gobblin/source/extractor/Watermark.html" title="interface in gobblin.source.extractor">Watermark</a>&gt;<br>T</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../gobblin/source/extractor/WatermarkSerializerHelper.html#convertJsonToWatermark-com.google.gson.JsonElement-java.lang.Class-">convertJsonToWatermark</a></span>(com.google.gson.JsonElement&nbsp;jsonElement,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&lt;T&gt;&nbsp;clazz)</code>
<div class="block">Converts a <code>JsonElement</code> into the specified class type using the <code>Gson.fromJson(JsonElement, Class)</code>
method.</div>
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<td class="colFirst"><code>static com.google.gson.JsonElement</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../gobblin/source/extractor/WatermarkSerializerHelper.html#convertWatermarkToJson-gobblin.source.extractor.Watermark-">convertWatermarkToJson</a></span>(<a href="../../../gobblin/source/extractor/Watermark.html" title="interface in gobblin.source.extractor">Watermark</a>&nbsp;watermark)</code>
<div class="block">Converts a <a href="../../../gobblin/source/extractor/Watermark.html" title="interface in gobblin.source.extractor"><code>Watermark</code></a> to a <code>JsonElement</code> using the <code>Gson.toJsonTree(Object)</code> method.</div>
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<code><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
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<h4>WatermarkSerializerHelper</h4>
<pre>public&nbsp;WatermarkSerializerHelper()</pre>
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<h4>convertWatermarkToJson</h4>
<pre>public static&nbsp;com.google.gson.JsonElement&nbsp;convertWatermarkToJson(<a href="../../../gobblin/source/extractor/Watermark.html" title="interface in gobblin.source.extractor">Watermark</a>&nbsp;watermark)</pre>
<div class="block">Converts a <a href="../../../gobblin/source/extractor/Watermark.html" title="interface in gobblin.source.extractor"><code>Watermark</code></a> to a <code>JsonElement</code> using the <code>Gson.toJsonTree(Object)</code> method.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>watermark</code> - the <a href="../../../gobblin/source/extractor/Watermark.html" title="interface in gobblin.source.extractor"><code>Watermark</code></a> that needs to be converted to json.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a <code>JsonElement</code> that represents the given <a href="../../../gobblin/source/extractor/Watermark.html" title="interface in gobblin.source.extractor"><code>Watermark</code></a>.</dd>
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<h4>convertJsonToWatermark</h4>
<pre>public static&nbsp;&lt;T extends <a href="../../../gobblin/source/extractor/Watermark.html" title="interface in gobblin.source.extractor">Watermark</a>&gt;&nbsp;T&nbsp;convertJsonToWatermark(com.google.gson.JsonElement&nbsp;jsonElement,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&lt;T&gt;&nbsp;clazz)</pre>
<div class="block">Converts a <code>JsonElement</code> into the specified class type using the <code>Gson.fromJson(JsonElement, Class)</code>
method.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>jsonElement</code> - is a <code>JsonElement</code> that will be converted into a <a href="../../../gobblin/source/extractor/Watermark.html" title="interface in gobblin.source.extractor"><code>Watermark</code></a>.</dd>
<dd><code>clazz</code> - is the <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang"><code>Class</code></a> that the <code>JsonElement</code> will be converted into.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>an instance of a class that extends <a href="../../../gobblin/source/extractor/Watermark.html" title="interface in gobblin.source.extractor"><code>Watermark</code></a>.</dd>
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