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| <h2 title="Class DefaultFilenamePolicy" class="title">Class DefaultFilenamePolicy</h2> |
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| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
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| <ul class="inheritance"> |
| <li><a href="../../../../../org/apache/beam/sdk/io/FileBasedSink.FilenamePolicy.html" title="class in org.apache.beam.sdk.io">org.apache.beam.sdk.io.FileBasedSink.FilenamePolicy</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.beam.sdk.io.DefaultFilenamePolicy</li> |
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| <pre>public final class <span class="typeNameLabel">DefaultFilenamePolicy</span> |
| extends <a href="../../../../../org/apache/beam/sdk/io/FileBasedSink.FilenamePolicy.html" title="class in org.apache.beam.sdk.io">FileBasedSink.FilenamePolicy</a></pre> |
| <div class="block">A default <a href="../../../../../org/apache/beam/sdk/io/FileBasedSink.FilenamePolicy.html" title="class in org.apache.beam.sdk.io"><code>FileBasedSink.FilenamePolicy</code></a> for windowed and unwindowed files. This policy is constructed |
| using three parameters that together define the output name of a sharded file, in conjunction |
| with the number of shards, index of the particular file, current window and pane information, |
| using <a href="../../../../../org/apache/beam/sdk/io/DefaultFilenamePolicy.html#constructName-org.apache.beam.sdk.io.fs.ResourceId-java.lang.String-java.lang.String-int-int-java.lang.String-java.lang.String-"><code>constructName(org.apache.beam.sdk.io.fs.ResourceId, java.lang.String, java.lang.String, int, int, java.lang.String, java.lang.String)</code></a>. |
| |
| <p>Most users will use this <a href="../../../../../org/apache/beam/sdk/io/DefaultFilenamePolicy.html" title="class in org.apache.beam.sdk.io"><code>DefaultFilenamePolicy</code></a>. For more advanced uses in generating |
| different files for each window and other sharding controls, see the <code>WriteOneFilePerWindow</code> example pipeline.</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../serialized-form.html#org.apache.beam.sdk.io.DefaultFilenamePolicy">Serialized Form</a></dd> |
| </dl> |
| </li> |
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| <tr class="altColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/io/DefaultFilenamePolicy.Params.html" title="class in org.apache.beam.sdk.io">DefaultFilenamePolicy.Params</a></span></code> |
| <div class="block">Encapsulates constructor parameters to <a href="../../../../../org/apache/beam/sdk/io/DefaultFilenamePolicy.html" title="class in org.apache.beam.sdk.io"><code>DefaultFilenamePolicy</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/io/DefaultFilenamePolicy.ParamsCoder.html" title="class in org.apache.beam.sdk.io">DefaultFilenamePolicy.ParamsCoder</a></span></code> |
| <div class="block">A Coder for <a href="../../../../../org/apache/beam/sdk/io/DefaultFilenamePolicy.Params.html" title="class in org.apache.beam.sdk.io"><code>DefaultFilenamePolicy.Params</code></a>.</div> |
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| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/io/DefaultFilenamePolicy.html#DEFAULT_UNWINDOWED_SHARD_TEMPLATE">DEFAULT_UNWINDOWED_SHARD_TEMPLATE</a></span></code> |
| <div class="block">The default sharding name template.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/io/DefaultFilenamePolicy.html#DEFAULT_WINDOWED_SHARD_TEMPLATE">DEFAULT_WINDOWED_SHARD_TEMPLATE</a></span></code> |
| <div class="block">The default windowed sharding name template used when writing windowed files.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
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| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></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="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
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| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>static <a href="../../../../../org/apache/beam/sdk/io/DefaultFilenamePolicy.html" title="class in org.apache.beam.sdk.io">DefaultFilenamePolicy</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/io/DefaultFilenamePolicy.html#fromParams-org.apache.beam.sdk.io.DefaultFilenamePolicy.Params-">fromParams</a></span>(<a href="../../../../../org/apache/beam/sdk/io/DefaultFilenamePolicy.Params.html" title="class in org.apache.beam.sdk.io">DefaultFilenamePolicy.Params</a> params)</code> |
| <div class="block">Construct a <a href="../../../../../org/apache/beam/sdk/io/DefaultFilenamePolicy.html" title="class in org.apache.beam.sdk.io"><code>DefaultFilenamePolicy</code></a> from a <a href="../../../../../org/apache/beam/sdk/io/DefaultFilenamePolicy.Params.html" title="class in org.apache.beam.sdk.io"><code>DefaultFilenamePolicy.Params</code></a> object.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static <a href="../../../../../org/apache/beam/sdk/io/DefaultFilenamePolicy.html" title="class in org.apache.beam.sdk.io">DefaultFilenamePolicy</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/io/DefaultFilenamePolicy.html#fromStandardParameters-org.apache.beam.sdk.options.ValueProvider-java.lang.String-java.lang.String-boolean-">fromStandardParameters</a></span>(<a href="../../../../../org/apache/beam/sdk/options/ValueProvider.html" title="interface in org.apache.beam.sdk.options">ValueProvider</a><<a href="../../../../../org/apache/beam/sdk/io/fs/ResourceId.html" title="interface in org.apache.beam.sdk.io.fs">ResourceId</a>> baseFilename, |
| java.lang.String shardTemplate, |
| java.lang.String filenameSuffix, |
| boolean windowedWrites)</code> |
| <div class="block">Construct a <a href="../../../../../org/apache/beam/sdk/io/DefaultFilenamePolicy.html" title="class in org.apache.beam.sdk.io"><code>DefaultFilenamePolicy</code></a>.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/io/DefaultFilenamePolicy.html#populateDisplayData-org.apache.beam.sdk.transforms.display.DisplayData.Builder-">populateDisplayData</a></span>(<a href="../../../../../org/apache/beam/sdk/transforms/display/DisplayData.Builder.html" title="interface in org.apache.beam.sdk.transforms.display">DisplayData.Builder</a> builder)</code> |
| <div class="block">Populates the display data.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/beam/sdk/io/fs/ResourceId.html" title="interface in org.apache.beam.sdk.io.fs">ResourceId</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/io/DefaultFilenamePolicy.html#unwindowedFilename-int-int-org.apache.beam.sdk.io.FileBasedSink.OutputFileHints-">unwindowedFilename</a></span>(int shardNumber, |
| int numShards, |
| <a href="../../../../../org/apache/beam/sdk/io/FileBasedSink.OutputFileHints.html" title="interface in org.apache.beam.sdk.io">FileBasedSink.OutputFileHints</a> outputFileHints)</code> |
| <div class="block">When a sink has not requested windowed or triggered output, this method will be invoked to |
| return the file <a href="../../../../../org/apache/beam/sdk/io/fs/ResourceId.html" title="interface in org.apache.beam.sdk.io.fs"><code>resource</code></a> to be created given the base output directory and |
| a <a href="../../../../../org/apache/beam/sdk/io/FileBasedSink.OutputFileHints.html" title="interface in org.apache.beam.sdk.io"><code>FileBasedSink.OutputFileHints</code></a> containing information about the file, including a suggested (e.g.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/beam/sdk/io/fs/ResourceId.html" title="interface in org.apache.beam.sdk.io.fs">ResourceId</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/io/DefaultFilenamePolicy.html#windowedFilename-int-int-org.apache.beam.sdk.transforms.windowing.BoundedWindow-org.apache.beam.sdk.transforms.windowing.PaneInfo-org.apache.beam.sdk.io.FileBasedSink.OutputFileHints-">windowedFilename</a></span>(int shardNumber, |
| int numShards, |
| <a href="../../../../../org/apache/beam/sdk/transforms/windowing/BoundedWindow.html" title="class in org.apache.beam.sdk.transforms.windowing">BoundedWindow</a> window, |
| <a href="../../../../../org/apache/beam/sdk/transforms/windowing/PaneInfo.html" title="class in org.apache.beam.sdk.transforms.windowing">PaneInfo</a> paneInfo, |
| <a href="../../../../../org/apache/beam/sdk/io/FileBasedSink.OutputFileHints.html" title="interface in org.apache.beam.sdk.io">FileBasedSink.OutputFileHints</a> outputFileHints)</code> |
| <div class="block">When a sink has requested windowed or triggered output, this method will be invoked to return |
| the file <a href="../../../../../org/apache/beam/sdk/io/fs/ResourceId.html" title="interface in org.apache.beam.sdk.io.fs"><code>resource</code></a> to be created given the base output directory and a |
| <a href="../../../../../org/apache/beam/sdk/io/FileBasedSink.OutputFileHints.html" title="interface in org.apache.beam.sdk.io"><code>FileBasedSink.OutputFileHints</code></a> containing information about the file, including a suggested |
| extension (e.g.</div> |
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| <!-- --> |
| </a> |
| <h3>Methods inherited from class java.lang.Object</h3> |
| <code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
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| <div class="details"> |
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| </a> |
| <h3>Field Detail</h3> |
| <a name="DEFAULT_UNWINDOWED_SHARD_TEMPLATE"> |
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| </a> |
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| <li class="blockList"> |
| <h4>DEFAULT_UNWINDOWED_SHARD_TEMPLATE</h4> |
| <pre>public static final java.lang.String DEFAULT_UNWINDOWED_SHARD_TEMPLATE</pre> |
| <div class="block">The default sharding name template.</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../constant-values.html#org.apache.beam.sdk.io.DefaultFilenamePolicy.DEFAULT_UNWINDOWED_SHARD_TEMPLATE">Constant Field Values</a></dd> |
| </dl> |
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| <h4>DEFAULT_WINDOWED_SHARD_TEMPLATE</h4> |
| <pre>public static final java.lang.String DEFAULT_WINDOWED_SHARD_TEMPLATE</pre> |
| <div class="block">The default windowed sharding name template used when writing windowed files. This is used as |
| default in cases when user did not specify shard template to be used and there is a need to |
| write windowed files. In cases when user does specify shard template to be used then provided |
| template will be used for both windowed and non-windowed file names.</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../constant-values.html#org.apache.beam.sdk.io.DefaultFilenamePolicy.DEFAULT_WINDOWED_SHARD_TEMPLATE">Constant Field Values</a></dd> |
| </dl> |
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| <ul class="blockList"> |
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| </a> |
| <h3>Method Detail</h3> |
| <a name="fromStandardParameters-org.apache.beam.sdk.options.ValueProvider-java.lang.String-java.lang.String-boolean-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>fromStandardParameters</h4> |
| <pre>public static <a href="../../../../../org/apache/beam/sdk/io/DefaultFilenamePolicy.html" title="class in org.apache.beam.sdk.io">DefaultFilenamePolicy</a> fromStandardParameters(<a href="../../../../../org/apache/beam/sdk/options/ValueProvider.html" title="interface in org.apache.beam.sdk.options">ValueProvider</a><<a href="../../../../../org/apache/beam/sdk/io/fs/ResourceId.html" title="interface in org.apache.beam.sdk.io.fs">ResourceId</a>> baseFilename, |
| @Nullable |
| java.lang.String shardTemplate, |
| @Nullable |
| java.lang.String filenameSuffix, |
| boolean windowedWrites)</pre> |
| <div class="block">Construct a <a href="../../../../../org/apache/beam/sdk/io/DefaultFilenamePolicy.html" title="class in org.apache.beam.sdk.io"><code>DefaultFilenamePolicy</code></a>. |
| |
| <p>This is a shortcut for: |
| |
| <pre><code> |
| DefaultFilenamePolicy.fromParams(new Params() |
| .withBaseFilename(baseFilename) |
| .withShardTemplate(shardTemplate) |
| .withSuffix(filenameSuffix) |
| .withWindowedWrites()) |
| </code></pre> |
| |
| <p>Where the respective <code>with</code> methods are invoked only if the value is non-null or true.</div> |
| </li> |
| </ul> |
| <a name="fromParams-org.apache.beam.sdk.io.DefaultFilenamePolicy.Params-"> |
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| </a> |
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| <h4>fromParams</h4> |
| <pre>public static <a href="../../../../../org/apache/beam/sdk/io/DefaultFilenamePolicy.html" title="class in org.apache.beam.sdk.io">DefaultFilenamePolicy</a> fromParams(<a href="../../../../../org/apache/beam/sdk/io/DefaultFilenamePolicy.Params.html" title="class in org.apache.beam.sdk.io">DefaultFilenamePolicy.Params</a> params)</pre> |
| <div class="block">Construct a <a href="../../../../../org/apache/beam/sdk/io/DefaultFilenamePolicy.html" title="class in org.apache.beam.sdk.io"><code>DefaultFilenamePolicy</code></a> from a <a href="../../../../../org/apache/beam/sdk/io/DefaultFilenamePolicy.Params.html" title="class in org.apache.beam.sdk.io"><code>DefaultFilenamePolicy.Params</code></a> object.</div> |
| </li> |
| </ul> |
| <a name="unwindowedFilename-int-int-org.apache.beam.sdk.io.FileBasedSink.OutputFileHints-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>unwindowedFilename</h4> |
| <pre>@Nullable |
| public <a href="../../../../../org/apache/beam/sdk/io/fs/ResourceId.html" title="interface in org.apache.beam.sdk.io.fs">ResourceId</a> unwindowedFilename(int shardNumber, |
| int numShards, |
| <a href="../../../../../org/apache/beam/sdk/io/FileBasedSink.OutputFileHints.html" title="interface in org.apache.beam.sdk.io">FileBasedSink.OutputFileHints</a> outputFileHints)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../../org/apache/beam/sdk/io/FileBasedSink.FilenamePolicy.html#unwindowedFilename-int-int-org.apache.beam.sdk.io.FileBasedSink.OutputFileHints-">FileBasedSink.FilenamePolicy</a></code></span></div> |
| <div class="block">When a sink has not requested windowed or triggered output, this method will be invoked to |
| return the file <a href="../../../../../org/apache/beam/sdk/io/fs/ResourceId.html" title="interface in org.apache.beam.sdk.io.fs"><code>resource</code></a> to be created given the base output directory and |
| a <a href="../../../../../org/apache/beam/sdk/io/FileBasedSink.OutputFileHints.html" title="interface in org.apache.beam.sdk.io"><code>FileBasedSink.OutputFileHints</code></a> containing information about the file, including a suggested (e.g. |
| coming from <a href="../../../../../org/apache/beam/sdk/io/Compression.html" title="enum in org.apache.beam.sdk.io"><code>Compression</code></a>). |
| |
| <p>The shardNumber and numShards parameters, should be used by the policy to generate unique |
| and consistent filenames.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/beam/sdk/io/FileBasedSink.FilenamePolicy.html#unwindowedFilename-int-int-org.apache.beam.sdk.io.FileBasedSink.OutputFileHints-">unwindowedFilename</a></code> in class <code><a href="../../../../../org/apache/beam/sdk/io/FileBasedSink.FilenamePolicy.html" title="class in org.apache.beam.sdk.io">FileBasedSink.FilenamePolicy</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="windowedFilename-int-int-org.apache.beam.sdk.transforms.windowing.BoundedWindow-org.apache.beam.sdk.transforms.windowing.PaneInfo-org.apache.beam.sdk.io.FileBasedSink.OutputFileHints-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>windowedFilename</h4> |
| <pre>public <a href="../../../../../org/apache/beam/sdk/io/fs/ResourceId.html" title="interface in org.apache.beam.sdk.io.fs">ResourceId</a> windowedFilename(int shardNumber, |
| int numShards, |
| <a href="../../../../../org/apache/beam/sdk/transforms/windowing/BoundedWindow.html" title="class in org.apache.beam.sdk.transforms.windowing">BoundedWindow</a> window, |
| <a href="../../../../../org/apache/beam/sdk/transforms/windowing/PaneInfo.html" title="class in org.apache.beam.sdk.transforms.windowing">PaneInfo</a> paneInfo, |
| <a href="../../../../../org/apache/beam/sdk/io/FileBasedSink.OutputFileHints.html" title="interface in org.apache.beam.sdk.io">FileBasedSink.OutputFileHints</a> outputFileHints)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../../org/apache/beam/sdk/io/FileBasedSink.FilenamePolicy.html#windowedFilename-int-int-org.apache.beam.sdk.transforms.windowing.BoundedWindow-org.apache.beam.sdk.transforms.windowing.PaneInfo-org.apache.beam.sdk.io.FileBasedSink.OutputFileHints-">FileBasedSink.FilenamePolicy</a></code></span></div> |
| <div class="block">When a sink has requested windowed or triggered output, this method will be invoked to return |
| the file <a href="../../../../../org/apache/beam/sdk/io/fs/ResourceId.html" title="interface in org.apache.beam.sdk.io.fs"><code>resource</code></a> to be created given the base output directory and a |
| <a href="../../../../../org/apache/beam/sdk/io/FileBasedSink.OutputFileHints.html" title="interface in org.apache.beam.sdk.io"><code>FileBasedSink.OutputFileHints</code></a> containing information about the file, including a suggested |
| extension (e.g. coming from <a href="../../../../../org/apache/beam/sdk/io/Compression.html" title="enum in org.apache.beam.sdk.io"><code>Compression</code></a>). |
| |
| <p>The policy must return unique and consistent filenames for different windows and panes.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/beam/sdk/io/FileBasedSink.FilenamePolicy.html#windowedFilename-int-int-org.apache.beam.sdk.transforms.windowing.BoundedWindow-org.apache.beam.sdk.transforms.windowing.PaneInfo-org.apache.beam.sdk.io.FileBasedSink.OutputFileHints-">windowedFilename</a></code> in class <code><a href="../../../../../org/apache/beam/sdk/io/FileBasedSink.FilenamePolicy.html" title="class in org.apache.beam.sdk.io">FileBasedSink.FilenamePolicy</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="populateDisplayData-org.apache.beam.sdk.transforms.display.DisplayData.Builder-"> |
| <!-- --> |
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| <h4>populateDisplayData</h4> |
| <pre>public void populateDisplayData(<a href="../../../../../org/apache/beam/sdk/transforms/display/DisplayData.Builder.html" title="interface in org.apache.beam.sdk.transforms.display">DisplayData.Builder</a> builder)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../../org/apache/beam/sdk/io/FileBasedSink.FilenamePolicy.html#populateDisplayData-org.apache.beam.sdk.transforms.display.DisplayData.Builder-">FileBasedSink.FilenamePolicy</a></code></span></div> |
| <div class="block">Populates the display data.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/beam/sdk/io/FileBasedSink.FilenamePolicy.html#populateDisplayData-org.apache.beam.sdk.transforms.display.DisplayData.Builder-">populateDisplayData</a></code> in class <code><a href="../../../../../org/apache/beam/sdk/io/FileBasedSink.FilenamePolicy.html" title="class in org.apache.beam.sdk.io">FileBasedSink.FilenamePolicy</a></code></dd> |
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