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| <div class="subTitle">org.apache.beam.sdk.transforms.splittabledofn</div> |
| <h2 title="Interface ManualWatermarkEstimator" class="title">Interface ManualWatermarkEstimator<WatermarkEstimatorStateT></h2> |
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| <dd><a href="../../../../../../org/apache/beam/sdk/transforms/splittabledofn/WatermarkEstimators.Manual.html" title="class in org.apache.beam.sdk.transforms.splittabledofn">WatermarkEstimators.Manual</a></dd> |
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| <pre>public interface <span class="typeNameLabel">ManualWatermarkEstimator<WatermarkEstimatorStateT></span> |
| extends <a href="../../../../../../org/apache/beam/sdk/transforms/splittabledofn/WatermarkEstimator.html" title="interface in org.apache.beam.sdk.transforms.splittabledofn">WatermarkEstimator</a><WatermarkEstimatorStateT></pre> |
| <div class="block">A <a href="../../../../../../org/apache/beam/sdk/transforms/splittabledofn/WatermarkEstimator.html" title="interface in org.apache.beam.sdk.transforms.splittabledofn"><code>WatermarkEstimator</code></a> which is controlled manually from within a <a href="../../../../../../org/apache/beam/sdk/transforms/DoFn.html" title="class in org.apache.beam.sdk.transforms"><code>DoFn</code></a>. The <a href="../../../../../../org/apache/beam/sdk/transforms/DoFn.html" title="class in org.apache.beam.sdk.transforms"><code>DoFn</code></a> must invoke <a href="../../../../../../org/apache/beam/sdk/transforms/splittabledofn/ManualWatermarkEstimator.html#setWatermark-org.joda.time.Instant-"><code>setWatermark(org.joda.time.Instant)</code></a> to advance the watermark. See <a href="../../../../../../org/apache/beam/sdk/transforms/splittabledofn/WatermarkEstimators.Manual.html" title="class in org.apache.beam.sdk.transforms.splittabledofn"><code>WatermarkEstimators.Manual</code></a> for a concrete implementation.</div> |
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| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/transforms/splittabledofn/ManualWatermarkEstimator.html#setWatermark-org.joda.time.Instant-">setWatermark</a></span>(<a href="https://static.javadoc.io/joda-time/joda-time/2.10.10/org/joda/time/Instant.html?is-external=true" title="class or interface in org.joda.time">Instant</a> watermark)</code> |
| <div class="block">Sets a timestamp before or at the timestamps of all future elements produced by the associated |
| DoFn.</div> |
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| <h3>Methods inherited from interface org.apache.beam.sdk.transforms.splittabledofn.<a href="../../../../../../org/apache/beam/sdk/transforms/splittabledofn/WatermarkEstimator.html" title="interface in org.apache.beam.sdk.transforms.splittabledofn">WatermarkEstimator</a></h3> |
| <code><a href="../../../../../../org/apache/beam/sdk/transforms/splittabledofn/WatermarkEstimator.html#currentWatermark--">currentWatermark</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/splittabledofn/WatermarkEstimator.html#getState--">getState</a></code></li> |
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| <h4>setWatermark</h4> |
| <pre>void setWatermark(<a href="https://static.javadoc.io/joda-time/joda-time/2.10.10/org/joda/time/Instant.html?is-external=true" title="class or interface in org.joda.time">Instant</a> watermark)</pre> |
| <div class="block">Sets a timestamp before or at the timestamps of all future elements produced by the associated |
| DoFn. |
| |
| <p>This can be approximate. If records are output that violate this guarantee, they will be |
| considered late, which will affect how they will be processed. See <a |
| href="https://beam.apache.org/documentation/programming-guide/#watermarks-and-late-data">watermarks |
| and late data</a> for more information on late data and how to handle it. |
| |
| <p>However, this value should be as late as possible. Downstream windows may not be able to |
| close until this watermark passes their end.</div> |
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