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| <h2 title="Class OffsetBasedSource" class="title">Class OffsetBasedSource<T></h2> |
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| <li>org.apache.beam.sdk.io.OffsetBasedSource<T></li> |
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| <dd><code>T</code> - Type of records represented by the source.</dd> |
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| </dl> |
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| <br> |
| <pre>public abstract class <span class="typeNameLabel">OffsetBasedSource<T></span> |
| extends <a href="../../../../../org/apache/beam/sdk/io/BoundedSource.html" title="class in org.apache.beam.sdk.io">BoundedSource</a><T></pre> |
| <div class="block">A <a href="../../../../../org/apache/beam/sdk/io/BoundedSource.html" title="class in org.apache.beam.sdk.io"><code>BoundedSource</code></a> that uses offsets to define starting and ending positions. |
| |
| <p><a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html" title="class in org.apache.beam.sdk.io"><code>OffsetBasedSource</code></a> is a common base class for all bounded sources where the input can |
| be represented as a single range, and an input can be efficiently processed in parallel by |
| splitting the range into a set of disjoint ranges whose union is the original range. This class |
| should be used for sources that can be cheaply read starting at any given offset. <a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html" title="class in org.apache.beam.sdk.io"><code>OffsetBasedSource</code></a> stores the range and implements splitting into bundles. |
| |
| <p>Extend <a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html" title="class in org.apache.beam.sdk.io"><code>OffsetBasedSource</code></a> to implement your own offset-based custom source. <a href="../../../../../org/apache/beam/sdk/io/FileBasedSource.html" title="class in org.apache.beam.sdk.io"><code>FileBasedSource</code></a>, which is a subclass of this, adds additional functionality useful for custom |
| sources that are based on files. If possible implementors should start from <a href="../../../../../org/apache/beam/sdk/io/FileBasedSource.html" title="class in org.apache.beam.sdk.io"><code>FileBasedSource</code></a> instead of <a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html" title="class in org.apache.beam.sdk.io"><code>OffsetBasedSource</code></a>. |
| |
| <p>Consult <a href="../../../../../org/apache/beam/sdk/io/range/RangeTracker.html" title="interface in org.apache.beam.sdk.io.range"><code>RangeTracker</code></a> for important semantics common to all sources defined by a range |
| of positions of a certain type, including the semantics of split points (<a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.OffsetBasedReader.html#isAtSplitPoint--"><code>OffsetBasedSource.OffsetBasedReader.isAtSplitPoint()</code></a>).</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../org/apache/beam/sdk/io/BoundedSource.html" title="class in org.apache.beam.sdk.io"><code>BoundedSource</code></a>, |
| <a href="../../../../../org/apache/beam/sdk/io/FileBasedSource.html" title="class in org.apache.beam.sdk.io"><code>FileBasedSource</code></a>, |
| <a href="../../../../../org/apache/beam/sdk/io/range/RangeTracker.html" title="interface in org.apache.beam.sdk.io.range"><code>RangeTracker</code></a>, |
| <a href="../../../../../serialized-form.html#org.apache.beam.sdk.io.OffsetBasedSource">Serialized Form</a></dd> |
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| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Class and Description</th> |
| </tr> |
| <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/OffsetBasedSource.OffsetBasedReader.html" title="class in org.apache.beam.sdk.io">OffsetBasedSource.OffsetBasedReader</a><<a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.OffsetBasedReader.html" title="type parameter in OffsetBasedSource.OffsetBasedReader">T</a>></span></code> |
| <div class="block">A <a href="../../../../../org/apache/beam/sdk/io/Source.Reader.html" title="class in org.apache.beam.sdk.io"><code>Source.Reader</code></a> that implements code common to readers of all <a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html" title="class in org.apache.beam.sdk.io"><code>OffsetBasedSource</code></a>s.</div> |
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| <code><a href="../../../../../org/apache/beam/sdk/io/BoundedSource.BoundedReader.html" title="class in org.apache.beam.sdk.io">BoundedSource.BoundedReader</a><<a href="../../../../../org/apache/beam/sdk/io/BoundedSource.BoundedReader.html" title="type parameter in BoundedSource.BoundedReader">T</a>></code></li> |
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| <h3>Nested classes/interfaces inherited from class org.apache.beam.sdk.io.<a href="../../../../../org/apache/beam/sdk/io/Source.html" title="class in org.apache.beam.sdk.io">Source</a></h3> |
| <code><a href="../../../../../org/apache/beam/sdk/io/Source.Reader.html" title="class in org.apache.beam.sdk.io">Source.Reader</a><<a href="../../../../../org/apache/beam/sdk/io/Source.Reader.html" title="type parameter in Source.Reader">T</a>></code></li> |
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| <tr> |
| <th class="colOne" scope="col">Constructor and Description</th> |
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| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html#OffsetBasedSource-long-long-long-">OffsetBasedSource</a></span>(long startOffset, |
| long endOffset, |
| long minBundleSize)</code> </td> |
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| <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><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
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| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>abstract <a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html" title="class in org.apache.beam.sdk.io">OffsetBasedSource</a><<a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html" title="type parameter in OffsetBasedSource">T</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html#createSourceForSubrange-long-long-">createSourceForSubrange</a></span>(long start, |
| long end)</code> |
| <div class="block">Returns an <a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html" title="class in org.apache.beam.sdk.io"><code>OffsetBasedSource</code></a> for a subrange of the current source.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html#getBytesPerOffset--">getBytesPerOffset</a></span>()</code> |
| <div class="block">Returns approximately how many bytes of data correspond to a single offset in this source.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html#getEndOffset--">getEndOffset</a></span>()</code> |
| <div class="block">Returns the specified ending offset of the source.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html#getEstimatedSizeBytes-org.apache.beam.sdk.options.PipelineOptions-">getEstimatedSizeBytes</a></span>(<a href="../../../../../org/apache/beam/sdk/options/PipelineOptions.html" title="interface in org.apache.beam.sdk.options">PipelineOptions</a> options)</code> |
| <div class="block">An estimate of the total size (in bytes) of the data that would be read from this source.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>abstract long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html#getMaxEndOffset-org.apache.beam.sdk.options.PipelineOptions-">getMaxEndOffset</a></span>(<a href="../../../../../org/apache/beam/sdk/options/PipelineOptions.html" title="interface in org.apache.beam.sdk.options">PipelineOptions</a> options)</code> |
| <div class="block">Returns the actual ending offset of the current source.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html#getMinBundleSize--">getMinBundleSize</a></span>()</code> |
| <div class="block">Returns the minimum bundle size that should be used when splitting the source into sub-sources.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html#getStartOffset--">getStartOffset</a></span>()</code> |
| <div class="block">Returns the starting offset of the source.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.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">Register display data for the given transform or component.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>java.util.List<? extends <a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html" title="class in org.apache.beam.sdk.io">OffsetBasedSource</a><<a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html" title="type parameter in OffsetBasedSource">T</a>>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html#split-long-org.apache.beam.sdk.options.PipelineOptions-">split</a></span>(long desiredBundleSizeBytes, |
| <a href="../../../../../org/apache/beam/sdk/options/PipelineOptions.html" title="interface in org.apache.beam.sdk.options">PipelineOptions</a> options)</code> |
| <div class="block">Splits the source into bundles of approximately <code>desiredBundleSizeBytes</code>.</div> |
| </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html#toString--">toString</a></span>()</code> </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html#validate--">validate</a></span>()</code> |
| <div class="block">Checks that this source is valid, before it can be used in a pipeline.</div> |
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| <code><a href="../../../../../org/apache/beam/sdk/io/BoundedSource.html#createReader-org.apache.beam.sdk.options.PipelineOptions-">createReader</a></code></li> |
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| <code><a href="../../../../../org/apache/beam/sdk/io/Source.html#getDefaultOutputCoder--">getDefaultOutputCoder</a>, <a href="../../../../../org/apache/beam/sdk/io/Source.html#getOutputCoder--">getOutputCoder</a></code></li> |
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| <h4>OffsetBasedSource</h4> |
| <pre>public OffsetBasedSource(long startOffset, |
| long endOffset, |
| long minBundleSize)</pre> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>startOffset</code> - starting offset (inclusive) of the source. Must be non-negative.</dd> |
| <dd><code>endOffset</code> - ending offset (exclusive) of the source. Use <code>Long.MAX_VALUE</code> to |
| indicate that the entire source after <code>startOffset</code> should be read. Must be <code>> |
| startOffset</code>.</dd> |
| <dd><code>minBundleSize</code> - minimum bundle size in offset units that should be used when splitting the |
| source into sub-sources. This value may not be respected if the total range of the source |
| is smaller than the specified <code>minBundleSize</code>. Must be non-negative.</dd> |
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| <pre>public long getStartOffset()</pre> |
| <div class="block">Returns the starting offset of the source.</div> |
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| <pre>public long getEndOffset()</pre> |
| <div class="block">Returns the specified ending offset of the source. Any returned value greater than or equal to |
| <a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html#getMaxEndOffset-org.apache.beam.sdk.options.PipelineOptions-"><code>getMaxEndOffset(PipelineOptions)</code></a> should be treated as <a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html#getMaxEndOffset-org.apache.beam.sdk.options.PipelineOptions-"><code>getMaxEndOffset(PipelineOptions)</code></a>.</div> |
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| <pre>public long getMinBundleSize()</pre> |
| <div class="block">Returns the minimum bundle size that should be used when splitting the source into sub-sources. |
| This value may not be respected if the total range of the source is smaller than the specified |
| <code>minBundleSize</code>.</div> |
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| <pre>public long getEstimatedSizeBytes(<a href="../../../../../org/apache/beam/sdk/options/PipelineOptions.html" title="interface in org.apache.beam.sdk.options">PipelineOptions</a> options) |
| throws java.lang.Exception</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../../org/apache/beam/sdk/io/BoundedSource.html#getEstimatedSizeBytes-org.apache.beam.sdk.options.PipelineOptions-">BoundedSource</a></code></span></div> |
| <div class="block">An estimate of the total size (in bytes) of the data that would be read from this source. This |
| estimate is in terms of external storage size, before any decompression or other processing |
| done by the reader. |
| |
| <p>If there is no way to estimate the size of the source implementations MAY return 0L.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/beam/sdk/io/BoundedSource.html#getEstimatedSizeBytes-org.apache.beam.sdk.options.PipelineOptions-">getEstimatedSizeBytes</a></code> in class <code><a href="../../../../../org/apache/beam/sdk/io/BoundedSource.html" title="class in org.apache.beam.sdk.io">BoundedSource</a><<a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html" title="type parameter in OffsetBasedSource">T</a>></code></dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code>java.lang.Exception</code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="split-long-org.apache.beam.sdk.options.PipelineOptions-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>split</h4> |
| <pre>public java.util.List<? extends <a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html" title="class in org.apache.beam.sdk.io">OffsetBasedSource</a><<a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html" title="type parameter in OffsetBasedSource">T</a>>> split(long desiredBundleSizeBytes, |
| <a href="../../../../../org/apache/beam/sdk/options/PipelineOptions.html" title="interface in org.apache.beam.sdk.options">PipelineOptions</a> options) |
| throws java.lang.Exception</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../../org/apache/beam/sdk/io/BoundedSource.html#split-long-org.apache.beam.sdk.options.PipelineOptions-">BoundedSource</a></code></span></div> |
| <div class="block">Splits the source into bundles of approximately <code>desiredBundleSizeBytes</code>.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/beam/sdk/io/BoundedSource.html#split-long-org.apache.beam.sdk.options.PipelineOptions-">split</a></code> in class <code><a href="../../../../../org/apache/beam/sdk/io/BoundedSource.html" title="class in org.apache.beam.sdk.io">BoundedSource</a><<a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html" title="type parameter in OffsetBasedSource">T</a>></code></dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code>java.lang.Exception</code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="validate--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
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| <h4>validate</h4> |
| <pre>public void validate()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../../org/apache/beam/sdk/io/Source.html#validate--">Source</a></code></span></div> |
| <div class="block">Checks that this source is valid, before it can be used in a pipeline. |
| |
| <p>It is recommended to use <a href="http://google.github.io/guava/releases/20.0/api/docs/com/google/common/base/Preconditions.html?is-external=true" title="class or interface in com.google.common.base"><code>Preconditions</code></a> for implementing this |
| method.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/beam/sdk/io/Source.html#validate--">validate</a></code> in class <code><a href="../../../../../org/apache/beam/sdk/io/Source.html" title="class in org.apache.beam.sdk.io">Source</a><<a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html" title="type parameter in OffsetBasedSource">T</a>></code></dd> |
| </dl> |
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| <a name="toString--"> |
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| <h4>toString</h4> |
| <pre>public java.lang.String toString()</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code>toString</code> in class <code>java.lang.Object</code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getBytesPerOffset--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getBytesPerOffset</h4> |
| <pre>public long getBytesPerOffset()</pre> |
| <div class="block">Returns approximately how many bytes of data correspond to a single offset in this source. Used |
| for translation between this source's range and methods defined in terms of bytes, such as |
| <a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html#getEstimatedSizeBytes-org.apache.beam.sdk.options.PipelineOptions-"><code>getEstimatedSizeBytes(org.apache.beam.sdk.options.PipelineOptions)</code></a> and <a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html#split-long-org.apache.beam.sdk.options.PipelineOptions-"><code>split(long, org.apache.beam.sdk.options.PipelineOptions)</code></a>. |
| |
| <p>Defaults to <code>1</code> byte, which is the common case for, e.g., file sources.</div> |
| </li> |
| </ul> |
| <a name="getMaxEndOffset-org.apache.beam.sdk.options.PipelineOptions-"> |
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| <h4>getMaxEndOffset</h4> |
| <pre>public abstract long getMaxEndOffset(<a href="../../../../../org/apache/beam/sdk/options/PipelineOptions.html" title="interface in org.apache.beam.sdk.options">PipelineOptions</a> options) |
| throws java.lang.Exception</pre> |
| <div class="block">Returns the actual ending offset of the current source. The value returned by this function |
| will be used to clip the end of the range <code>[startOffset, endOffset)</code> such that the range |
| used is <code>[startOffset, min(endOffset, maxEndOffset))</code>. |
| |
| <p>As an example in which <a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html" title="class in org.apache.beam.sdk.io"><code>OffsetBasedSource</code></a> is used to implement a file source, suppose |
| that this source was constructed with an <code>endOffset</code> of <code>Long.MAX_VALUE</code> to |
| indicate that a file should be read to the end. Then this function should determine the actual, |
| exact size of the file in bytes and return it.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code>java.lang.Exception</code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="createSourceForSubrange-long-long-"> |
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| <h4>createSourceForSubrange</h4> |
| <pre>public abstract <a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html" title="class in org.apache.beam.sdk.io">OffsetBasedSource</a><<a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html" title="type parameter in OffsetBasedSource">T</a>> createSourceForSubrange(long start, |
| long end)</pre> |
| <div class="block">Returns an <a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html" title="class in org.apache.beam.sdk.io"><code>OffsetBasedSource</code></a> for a subrange of the current source. The subrange <code>[start, end)</code> must be within the range <code>[startOffset, endOffset)</code> of the current source, |
| i.e. <code>startOffset <= start < end <= endOffset</code>.</div> |
| </li> |
| </ul> |
| <a name="populateDisplayData-org.apache.beam.sdk.transforms.display.DisplayData.Builder-"> |
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| </a> |
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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/Source.html#populateDisplayData-org.apache.beam.sdk.transforms.display.DisplayData.Builder-">Source</a></code></span></div> |
| <div class="block">Register display data for the given transform or component. |
| |
| <p><code>populateDisplayData(DisplayData.Builder)</code> is invoked by Pipeline runners to collect |
| display data via <a href="../../../../../org/apache/beam/sdk/transforms/display/DisplayData.html#from-org.apache.beam.sdk.transforms.display.HasDisplayData-"><code>DisplayData.from(HasDisplayData)</code></a>. Implementations may call <code>super.populateDisplayData(builder)</code> in order to register display data in the current namespace, |
| but should otherwise use <code>subcomponent.populateDisplayData(builder)</code> to use the namespace |
| of the subcomponent. |
| |
| <p>By default, does not register any display data. Implementors may override this method to |
| provide their own display data.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/beam/sdk/transforms/display/HasDisplayData.html#populateDisplayData-org.apache.beam.sdk.transforms.display.DisplayData.Builder-">populateDisplayData</a></code> in interface <code><a href="../../../../../org/apache/beam/sdk/transforms/display/HasDisplayData.html" title="interface in org.apache.beam.sdk.transforms.display">HasDisplayData</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/beam/sdk/io/Source.html#populateDisplayData-org.apache.beam.sdk.transforms.display.DisplayData.Builder-">populateDisplayData</a></code> in class <code><a href="../../../../../org/apache/beam/sdk/io/Source.html" title="class in org.apache.beam.sdk.io">Source</a><<a href="../../../../../org/apache/beam/sdk/io/OffsetBasedSource.html" title="type parameter in OffsetBasedSource">T</a>></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>builder</code> - The builder to populate with display data.</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../org/apache/beam/sdk/transforms/display/HasDisplayData.html" title="interface in org.apache.beam.sdk.transforms.display"><code>HasDisplayData</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
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