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| <div class="subTitle">org.apache.beam.sdk.fn.stream</div> |
| <h2 title="Class DataStreams.BlockingQueueIterator" class="title">Class DataStreams.BlockingQueueIterator<T></h2> |
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| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
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| <li>org.apache.beam.sdk.fn.stream.DataStreams.BlockingQueueIterator<T></li> |
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| <pre>public static class <span class="typeNameLabel">DataStreams.BlockingQueueIterator<T></span> |
| extends java.lang.Object |
| implements java.lang.AutoCloseable, java.util.Iterator<T></pre> |
| <div class="block">Allows for one or more writing threads to append values to this iterator while one reading |
| thread reads values. <a href="../../../../../../org/apache/beam/sdk/fn/stream/DataStreams.BlockingQueueIterator.html#hasNext--"><code>hasNext()</code></a> and <a href="../../../../../../org/apache/beam/sdk/fn/stream/DataStreams.BlockingQueueIterator.html#next--"><code>next()</code></a> will block until a value is |
| available or this has been closed. |
| |
| <p>External synchronization must be provided if multiple readers would like to access the |
| <code>Iterator.hasNext()</code> and <code>Iterator.next()</code> methods. |
| |
| <p>The order or values which are appended to this iterator is nondeterministic when multiple |
| threads call <a href="../../../../../../org/apache/beam/sdk/fn/stream/DataStreams.BlockingQueueIterator.html#accept-T-"><code>accept(Object)</code></a>.</div> |
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| <th class="colOne" scope="col">Constructor and Description</th> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/fn/stream/DataStreams.BlockingQueueIterator.html#BlockingQueueIterator-java.util.concurrent.BlockingQueue-">BlockingQueueIterator</a></span>(java.util.concurrent.BlockingQueue<<a href="../../../../../../org/apache/beam/sdk/fn/stream/DataStreams.BlockingQueueIterator.html" title="type parameter in DataStreams.BlockingQueueIterator">T</a>> queue)</code> </td> |
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| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/fn/stream/DataStreams.BlockingQueueIterator.html#accept-T-">accept</a></span>(<a href="../../../../../../org/apache/beam/sdk/fn/stream/DataStreams.BlockingQueueIterator.html" title="type parameter in DataStreams.BlockingQueueIterator">T</a> t)</code> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/fn/stream/DataStreams.BlockingQueueIterator.html#close--">close</a></span>()</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/fn/stream/DataStreams.BlockingQueueIterator.html#hasNext--">hasNext</a></span>()</code> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/fn/stream/DataStreams.BlockingQueueIterator.html" title="type parameter in DataStreams.BlockingQueueIterator">T</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/fn/stream/DataStreams.BlockingQueueIterator.html#next--">next</a></span>()</code> </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/fn/stream/DataStreams.BlockingQueueIterator.html#remove--">remove</a></span>()</code> </td> |
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| <h4>BlockingQueueIterator</h4> |
| <pre>public BlockingQueueIterator(java.util.concurrent.BlockingQueue<<a href="../../../../../../org/apache/beam/sdk/fn/stream/DataStreams.BlockingQueueIterator.html" title="type parameter in DataStreams.BlockingQueueIterator">T</a>> queue)</pre> |
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| <pre>public void close() |
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| <pre>public void accept(<a href="../../../../../../org/apache/beam/sdk/fn/stream/DataStreams.BlockingQueueIterator.html" title="type parameter in DataStreams.BlockingQueueIterator">T</a> t) |
| throws java.lang.Exception</pre> |
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| <dd><code>java.lang.Exception</code></dd> |
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| <pre>public boolean hasNext()</pre> |
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| <dd><code>hasNext</code> in interface <code>java.util.Iterator<<a href="../../../../../../org/apache/beam/sdk/fn/stream/DataStreams.BlockingQueueIterator.html" title="type parameter in DataStreams.BlockingQueueIterator">T</a>></code></dd> |
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| <pre>public <a href="../../../../../../org/apache/beam/sdk/fn/stream/DataStreams.BlockingQueueIterator.html" title="type parameter in DataStreams.BlockingQueueIterator">T</a> next()</pre> |
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