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| <div class="subTitle">org.apache.edgent.topology.spi.graph</div> |
| <h2 title="Class ConnectorStream" class="title">Class ConnectorStream<G extends <a href="../../../../../../org/apache/edgent/topology/Topology.html" title="interface in org.apache.edgent.topology">Topology</a>,T></h2> |
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| <li> |
| <ul class="inheritance"> |
| <li><a href="../../../../../../org/apache/edgent/topology/spi/AbstractTStream.html" title="class in org.apache.edgent.topology.spi">org.apache.edgent.topology.spi.AbstractTStream</a><G,T></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.edgent.topology.spi.graph.ConnectorStream<G,T></li> |
| </ul> |
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| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>G</code> - topology type</dd> |
| <dd><code>T</code> - tuple type</dd> |
| </dl> |
| <dl> |
| <dt>All Implemented Interfaces:</dt> |
| <dd><a href="../../../../../../org/apache/edgent/topology/TopologyElement.html" title="interface in org.apache.edgent.topology">TopologyElement</a>, <a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><T></dd> |
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| <pre>public class <span class="typeNameLabel">ConnectorStream<G extends <a href="../../../../../../org/apache/edgent/topology/Topology.html" title="interface in org.apache.edgent.topology">Topology</a>,T></span> |
| extends <a href="../../../../../../org/apache/edgent/topology/spi/AbstractTStream.html" title="class in org.apache.edgent.topology.spi">AbstractTStream</a><G,T></pre> |
| <div class="block">A stream that directly adds oplets to the graph.</div> |
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| <h3>Fields inherited from interface org.apache.edgent.topology.<a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a></h3> |
| <code><a href="../../../../../../org/apache/edgent/topology/TStream.html#TYPE">TYPE</a></code></li> |
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| <th class="colFirst" scope="col">Modifier</th> |
| <th class="colLast" scope="col">Constructor and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html#ConnectorStream-G-org.apache.edgent.graph.Connector-">ConnectorStream</a></span>(<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">G</a> topology, |
| <a href="../../../../../../org/apache/edgent/graph/Connector.html" title="interface in org.apache.edgent.graph">Connector</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>> connector)</code> </td> |
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| <h3>Method Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <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="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html#alias-java.lang.String-">alias</a></span>(<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> alias)</code> |
| <div class="block">Set an alias for the stream.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>protected <N extends <a href="../../../../../../org/apache/edgent/oplet/core/Pipe.html" title="class in org.apache.edgent.oplet.core">Pipe</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>,U>,U><br><a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><U></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html#connectPipe-N-">connectPipe</a></span>(N pipeOp)</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>protected <U> <a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="class in org.apache.edgent.topology.spi.graph">ConnectorStream</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">G</a>,U></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html#derived-org.apache.edgent.graph.Connector-">derived</a></span>(<a href="../../../../../../org/apache/edgent/graph/Connector.html" title="interface in org.apache.edgent.graph">Connector</a><U> connector)</code> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code><U> <a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><U></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html#fanin-org.apache.edgent.oplet.core.FanIn-java.util.List-">fanin</a></span>(<a href="../../../../../../org/apache/edgent/oplet/core/FanIn.html" title="class in org.apache.edgent.oplet.core">FanIn</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>,U> fanin, |
| <a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>>> others)</code> |
| <div class="block">Declare a stream that contains the output of the specified |
| <a href="../../../../../../org/apache/edgent/oplet/core/FanIn.html" title="class in org.apache.edgent.oplet.core"><code>FanIn</code></a> oplet applied to this stream and <code>others</code>.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html#filter-org.apache.edgent.function.Predicate-">filter</a></span>(<a href="../../../../../../org/apache/edgent/function/Predicate.html" title="interface in org.apache.edgent.function">Predicate</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>> predicate)</code> |
| <div class="block">Declare a new stream that filters tuples from this stream.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code><U> <a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><U></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html#flatMap-org.apache.edgent.function.Function-">flatMap</a></span>(<a href="../../../../../../org/apache/edgent/function/Function.html" title="interface in org.apache.edgent.function">Function</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>,<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Iterable.html?is-external=true" title="class or interface in java.lang">Iterable</a><U>> mapper)</code> |
| <div class="block">Declare a new stream that maps tuples from this stream into one or |
| more (or zero) tuples of a different type <code>U</code>.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html#getAlias--">getAlias</a></span>()</code> |
| <div class="block">Returns the stream's alias if any.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a><<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html#getTags--">getTags</a></span>()</code> |
| <div class="block">Returns the set of tags associated with this stream.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>protected <a href="../../../../../../org/apache/edgent/graph/Graph.html" title="interface in org.apache.edgent.graph">Graph</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html#graph--">graph</a></span>()</code> </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code><J,U,K> <a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><J></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html#join-org.apache.edgent.function.Function-org.apache.edgent.topology.TWindow-org.apache.edgent.function.BiFunction-">join</a></span>(<a href="../../../../../../org/apache/edgent/function/Function.html" title="interface in org.apache.edgent.function">Function</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>,K> keyer, |
| <a href="../../../../../../org/apache/edgent/topology/TWindow.html" title="interface in org.apache.edgent.topology">TWindow</a><U,K> twindow, |
| <a href="../../../../../../org/apache/edgent/function/BiFunction.html" title="interface in org.apache.edgent.function">BiFunction</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>,<a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><U>,J> joiner)</code> |
| <div class="block">Join this stream with a partitioned window of type <code>U</code> with key type <code>K</code>.</div> |
| </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code><J,U,K> <a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><J></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html#joinLast-org.apache.edgent.function.Function-org.apache.edgent.topology.TStream-org.apache.edgent.function.Function-org.apache.edgent.function.BiFunction-">joinLast</a></span>(<a href="../../../../../../org/apache/edgent/function/Function.html" title="interface in org.apache.edgent.function">Function</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>,K> keyer, |
| <a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><U> lastStream, |
| <a href="../../../../../../org/apache/edgent/function/Function.html" title="interface in org.apache.edgent.function">Function</a><U,K> lastStreamKeyer, |
| <a href="../../../../../../org/apache/edgent/function/BiFunction.html" title="interface in org.apache.edgent.function">BiFunction</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>,U,J> joiner)</code> |
| <div class="block">Join this stream with the last tuple seen on a stream of type <code>U</code> |
| with partitioning.</div> |
| </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code><K> <a href="../../../../../../org/apache/edgent/topology/TWindow.html" title="interface in org.apache.edgent.topology">TWindow</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>,K></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html#last-int-org.apache.edgent.function.Function-">last</a></span>(int count, |
| <a href="../../../../../../org/apache/edgent/function/Function.html" title="interface in org.apache.edgent.function">Function</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>,K> keyFunction)</code> |
| <div class="block">Declare a partitioned window that continually represents the last <code>count</code> |
| tuples on this stream for each partition.</div> |
| </td> |
| </tr> |
| <tr id="i12" class="altColor"> |
| <td class="colFirst"><code><K> <a href="../../../../../../org/apache/edgent/topology/TWindow.html" title="interface in org.apache.edgent.topology">TWindow</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>,K></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html#last-long-java.util.concurrent.TimeUnit-org.apache.edgent.function.Function-">last</a></span>(long time, |
| <a href="http://docs.oracle.com/javase/8/docs/api/java/util/concurrent/TimeUnit.html?is-external=true" title="class or interface in java.util.concurrent">TimeUnit</a> unit, |
| <a href="../../../../../../org/apache/edgent/function/Function.html" title="interface in org.apache.edgent.function">Function</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>,K> keyFunction)</code> |
| <div class="block">Declare a partitioned window that continually represents the last <code>time</code> seconds of |
| tuples on this stream for each partition.</div> |
| </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <td class="colFirst"><code><U> <a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><U></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html#map-org.apache.edgent.function.Function-">map</a></span>(<a href="../../../../../../org/apache/edgent/function/Function.html" title="interface in org.apache.edgent.function">Function</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>,U> mapper)</code> |
| <div class="block">Declare a new stream that maps (or transforms) each tuple from this stream into one |
| (or zero) tuple of a different type <code>U</code>.</div> |
| </td> |
| </tr> |
| <tr id="i14" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html#peek-org.apache.edgent.function.Consumer-">peek</a></span>(<a href="../../../../../../org/apache/edgent/function/Consumer.html" title="interface in org.apache.edgent.function">Consumer</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>> peeker)</code> |
| <div class="block">Declare a stream that contains the same contents as this stream while |
| peeking at each element using <code>peeker</code>.</div> |
| </td> |
| </tr> |
| <tr id="i15" class="rowColor"> |
| <td class="colFirst"><code><U> <a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><U></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html#pipe-org.apache.edgent.oplet.core.Pipe-">pipe</a></span>(<a href="../../../../../../org/apache/edgent/oplet/core/Pipe.html" title="class in org.apache.edgent.oplet.core">Pipe</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>,U> pipe)</code> |
| <div class="block">Declare a stream that contains the output of the specified <a href="../../../../../../org/apache/edgent/oplet/core/Pipe.html" title="class in org.apache.edgent.oplet.core"><code>Pipe</code></a> |
| oplet applied to this stream.</div> |
| </td> |
| </tr> |
| <tr id="i16" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/edgent/topology/TSink.html" title="interface in org.apache.edgent.topology">TSink</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html#sink-org.apache.edgent.oplet.core.Sink-">sink</a></span>(<a href="../../../../../../org/apache/edgent/oplet/core/Sink.html" title="class in org.apache.edgent.oplet.core">Sink</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>> oplet)</code> |
| <div class="block">Sink (terminate) this stream using a oplet.</div> |
| </td> |
| </tr> |
| <tr id="i17" class="rowColor"> |
| <td class="colFirst"><code><E extends <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang">Enum</a><E>><br><a href="http://docs.oracle.com/javase/8/docs/api/java/util/EnumMap.html?is-external=true" title="class or interface in java.util">EnumMap</a><E,<a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html#split-java.lang.Class-org.apache.edgent.function.Function-">split</a></span>(<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a><E> enumClass, |
| <a href="../../../../../../org/apache/edgent/function/Function.html" title="interface in org.apache.edgent.function">Function</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>,E> splitter)</code> |
| <div class="block">Split a stream's tuples among <code>enumClass.size</code> streams as specified by |
| <code>splitter</code>.</div> |
| </td> |
| </tr> |
| <tr id="i18" class="altColor"> |
| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html#split-int-org.apache.edgent.function.ToIntFunction-">split</a></span>(int n, |
| <a href="../../../../../../org/apache/edgent/function/ToIntFunction.html" title="interface in org.apache.edgent.function">ToIntFunction</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>> splitter)</code> |
| <div class="block">Split a stream's tuples among <code>n</code> streams as specified by |
| <code>splitter</code>.</div> |
| </td> |
| </tr> |
| <tr id="i19" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html#tag-java.lang.String...-">tag</a></span>(<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>... values)</code> |
| <div class="block">Adds the specified tags to the stream.</div> |
| </td> |
| </tr> |
| <tr id="i20" class="altColor"> |
| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html#toString--">toString</a></span>()</code> |
| <div class="block">Intended only as a debug aid and content is not guaranteed.</div> |
| </td> |
| </tr> |
| <tr id="i21" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html#union-java.util.Set-">union</a></span>(<a href="http://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a><<a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>>> others)</code> |
| <div class="block">Declare a stream that will contain all tuples from this stream and all the |
| streams in <code>others</code>.</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
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| <h3>Methods inherited from class org.apache.edgent.topology.spi.<a href="../../../../../../org/apache/edgent/topology/spi/AbstractTStream.html" title="class in org.apache.edgent.topology.spi">AbstractTStream</a></h3> |
| <code><a href="../../../../../../org/apache/edgent/topology/spi/AbstractTStream.html#asString--">asString</a>, <a href="../../../../../../org/apache/edgent/topology/spi/AbstractTStream.html#modify-org.apache.edgent.function.UnaryOperator-">modify</a>, <a href="../../../../../../org/apache/edgent/topology/spi/AbstractTStream.html#print--">print</a>, <a href="../../../../../../org/apache/edgent/topology/spi/AbstractTStream.html#sink-org.apache.edgent.function.Consumer-">sink</a>, <a href="../../../../../../org/apache/edgent/topology/spi/AbstractTStream.html#topology--">topology</a>, <a href="../../../../../../org/apache/edgent/topology/spi/AbstractTStream.html#union-org.apache.edgent.topology.TStream-">union</a>, <a href="../../../../../../org/apache/edgent/topology/spi/AbstractTStream.html#verify-org.apache.edgent.topology.TStream-">verify</a></code></li> |
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| <h3>Methods inherited from class java.lang.<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3> |
| <code><a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li> |
| </ul> |
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| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
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| </a> |
| <h3>Constructor Detail</h3> |
| <a name="ConnectorStream-org.apache.edgent.topology.Topology-org.apache.edgent.graph.Connector-"> |
| <!-- --> |
| </a><a name="ConnectorStream-G-org.apache.edgent.graph.Connector-"> |
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| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>ConnectorStream</h4> |
| <pre>protected ConnectorStream(<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">G</a> topology, |
| <a href="../../../../../../org/apache/edgent/graph/Connector.html" title="interface in org.apache.edgent.graph">Connector</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>> connector)</pre> |
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| <h3>Method Detail</h3> |
| <a name="derived-org.apache.edgent.graph.Connector-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>derived</h4> |
| <pre>protected <U> <a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="class in org.apache.edgent.topology.spi.graph">ConnectorStream</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">G</a>,U> derived(<a href="../../../../../../org/apache/edgent/graph/Connector.html" title="interface in org.apache.edgent.graph">Connector</a><U> connector)</pre> |
| </li> |
| </ul> |
| <a name="graph--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>graph</h4> |
| <pre>protected <a href="../../../../../../org/apache/edgent/graph/Graph.html" title="interface in org.apache.edgent.graph">Graph</a> graph()</pre> |
| </li> |
| </ul> |
| <a name="connectPipe-org.apache.edgent.oplet.core.Pipe-"> |
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| </a><a name="connectPipe-N-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>connectPipe</h4> |
| <pre>protected <N extends <a href="../../../../../../org/apache/edgent/oplet/core/Pipe.html" title="class in org.apache.edgent.oplet.core">Pipe</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>,U>,U> <a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><U> connectPipe(N pipeOp)</pre> |
| </li> |
| </ul> |
| <a name="filter-org.apache.edgent.function.Predicate-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>filter</h4> |
| <pre>public <a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>> filter(<a href="../../../../../../org/apache/edgent/function/Predicate.html" title="interface in org.apache.edgent.function">Predicate</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>> predicate)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/edgent/topology/TStream.html#filter-org.apache.edgent.function.Predicate-">TStream</a></code></span></div> |
| <div class="block">Declare a new stream that filters tuples from this stream. Each tuple |
| <code>t</code> on this stream will appear in the returned stream if |
| <a href="../../../../../../org/apache/edgent/function/Predicate.html#test-T-"><code>filter.test(t)</code></a> returns <code>true</code>. If |
| <code>filter.test(t)</code> returns <code>false</code> then then <code>t</code> will not |
| appear in the returned stream. |
| <P> |
| Examples of filtering out all empty strings from stream <code>s</code> of type |
| <code>String</code> |
| </P> |
| |
| <pre> |
| <code> |
| TStream<String> s = ... |
| TStream<String> filtered = s.filter(t -> !t.isEmpty()); |
| |
| </code> |
| </pre></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>predicate</code> - Filtering logic to be executed against each tuple.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Filtered stream</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="map-org.apache.edgent.function.Function-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>map</h4> |
| <pre>public <U> <a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><U> map(<a href="../../../../../../org/apache/edgent/function/Function.html" title="interface in org.apache.edgent.function">Function</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>,U> mapper)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/edgent/topology/TStream.html#map-org.apache.edgent.function.Function-">TStream</a></code></span></div> |
| <div class="block">Declare a new stream that maps (or transforms) each tuple from this stream into one |
| (or zero) tuple of a different type <code>U</code>. For each tuple <code>t</code> |
| on this stream, the returned stream will contain a tuple that is the |
| result of <code>mapper.apply(t)</code> when the return is not <code>null</code>. |
| If <code>mapper.apply(t)</code> returns <code>null</code> then no tuple |
| is submitted to the returned stream for <code>t</code>. |
| |
| <P> |
| Examples of transforming a stream containing numeric values as |
| <code>String</code> objects into a stream of <code>Double</code> values. |
| </P> |
| |
| <pre> |
| <code> |
| // Using lambda expression |
| TStream<String> strings = ... |
| TStream<Double> doubles = strings.map(v -> Double.valueOf(v)); |
| |
| // Using method reference |
| TStream<String> strings = ... |
| TStream<Double> doubles = strings.map(Double::valueOf); |
| |
| </code> |
| </pre></div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>U</code> - Tuple type of output stream</dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>mapper</code> - Mapping logic to be executed against each tuple.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Stream that will contain tuples of type <code>U</code> mapped from this |
| stream's tuples.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="flatMap-org.apache.edgent.function.Function-"> |
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| </a> |
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| <h4>flatMap</h4> |
| <pre>public <U> <a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><U> flatMap(<a href="../../../../../../org/apache/edgent/function/Function.html" title="interface in org.apache.edgent.function">Function</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>,<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Iterable.html?is-external=true" title="class or interface in java.lang">Iterable</a><U>> mapper)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/edgent/topology/TStream.html#flatMap-org.apache.edgent.function.Function-">TStream</a></code></span></div> |
| <div class="block">Declare a new stream that maps tuples from this stream into one or |
| more (or zero) tuples of a different type <code>U</code>. For each tuple |
| <code>t</code> on this stream, the returned stream will contain all non-null tuples in |
| the <code>Iterator<U></code> that is the result of <code>mapper.apply(t)</code>. |
| Tuples will be added to the returned stream in the order the iterator |
| returns them. |
| |
| <BR> |
| If the return is null or an empty iterator then no tuples are added to |
| the returned stream for input tuple <code>t</code>. |
| <P> |
| Examples of mapping a stream containing lines of text into a stream |
| of words split out from each line. The order of the words in the stream |
| will match the order of the words in the lines. |
| </P> |
| |
| <pre> |
| <code> |
| TStream<String> lines = ... |
| TStream<String> words = lines.flatMap( |
| line -> Arrays.asList(line.split(" "))); |
| |
| </code> |
| </pre></div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>U</code> - Type of mapped input tuples.</dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>mapper</code> - Mapper logic to be executed against each tuple.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Stream that will contain tuples of type <code>U</code> mapped and flattened from this |
| stream's tuples.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="split-int-org.apache.edgent.function.ToIntFunction-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>split</h4> |
| <pre>public <a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>>> split(int n, |
| <a href="../../../../../../org/apache/edgent/function/ToIntFunction.html" title="interface in org.apache.edgent.function">ToIntFunction</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>> splitter)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/edgent/topology/TStream.html#split-int-org.apache.edgent.function.ToIntFunction-">TStream</a></code></span></div> |
| <div class="block">Split a stream's tuples among <code>n</code> streams as specified by |
| <code>splitter</code>. |
| |
| <P> |
| For each tuple on the stream, <code>splitter.applyAsInt(tuple)</code> is |
| called. The return value <code>r</code> determines the destination stream: |
| </P> |
| |
| <pre> |
| if r < 0 the tuple is discarded |
| else it is sent to the stream at position (r % n) in the returned array. |
| </pre> |
| |
| <P> |
| Each split <code>TStream</code> is exposed by the API. The user has full |
| control over the each stream's processing pipeline. Each stream's |
| pipeline must be declared explicitly. Each stream can have different |
| processing pipelines. |
| </P> |
| <P> |
| An N-way <code>split()</code> is logically equivalent to a collection of N |
| <code>filter()</code> invocations, each with a predicate to select the tuples |
| for its stream. <code>split()</code> is more efficient. Each tuple is analyzed |
| only once by a single <code>splitter</code> instance to identify the |
| destination stream. For example, these are logically equivalent: |
| </P> |
| <pre> |
| List<TStream<String>> streams = stream.split(2, tuple -> tuple.length()); |
| |
| TStream<String> stream0 = stream.filter(tuple -> (tuple.length() % 2) == 0); |
| TStream<String> stream1 = stream.filter(tuple -> (tuple.length() % 2) == 1); |
| </pre> |
| <P> |
| Example of splitting a stream of log records by their level attribute: |
| </P> |
| |
| <pre> |
| <code> |
| TStream<LogRecord> lrs = ... |
| List<<TStream<LogRecord>> splits = lrr.split(3, lr -> { |
| if (SEVERE.equals(lr.getLevel())) |
| return 0; |
| else if (WARNING.equals(lr.getLevel())) |
| return 1; |
| else |
| return 2; |
| }); |
| splits.get(0). ... // SEVERE log record processing pipeline |
| splits.get(1). ... // WARNING log record processing pipeline |
| splits.get(2). ... // "other" log record processing pipeline |
| </code> |
| </pre></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>n</code> - the number of output streams</dd> |
| <dd><code>splitter</code> - the splitter function</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>List of <code>n</code> streams</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="split-java.lang.Class-org.apache.edgent.function.Function-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>split</h4> |
| <pre>public <E extends <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang">Enum</a><E>> <a href="http://docs.oracle.com/javase/8/docs/api/java/util/EnumMap.html?is-external=true" title="class or interface in java.util">EnumMap</a><E,<a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>>> split(<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a><E> enumClass, |
| <a href="../../../../../../org/apache/edgent/function/Function.html" title="interface in org.apache.edgent.function">Function</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>,E> splitter)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/edgent/topology/TStream.html#split-java.lang.Class-org.apache.edgent.function.Function-">TStream</a></code></span></div> |
| <div class="block">Split a stream's tuples among <code>enumClass.size</code> streams as specified by |
| <code>splitter</code>.</div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>E</code> - Enum type</dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>enumClass</code> - enum data to split</dd> |
| <dd><code>splitter</code> - the splitter function</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>EnumMap<E,TStream<T>></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="peek-org.apache.edgent.function.Consumer-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>peek</h4> |
| <pre>public <a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>> peek(<a href="../../../../../../org/apache/edgent/function/Consumer.html" title="interface in org.apache.edgent.function">Consumer</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>> peeker)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/edgent/topology/TStream.html#peek-org.apache.edgent.function.Consumer-">TStream</a></code></span></div> |
| <div class="block">Declare a stream that contains the same contents as this stream while |
| peeking at each element using <code>peeker</code>. <BR> |
| For each tuple <code>t</code> on this stream, <code>peeker.accept(t)</code> will be |
| called.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>peeker</code> - Function to be called for each tuple.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd><code>this</code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="sink-org.apache.edgent.oplet.core.Sink-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>sink</h4> |
| <pre>public <a href="../../../../../../org/apache/edgent/topology/TSink.html" title="interface in org.apache.edgent.topology">TSink</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>> sink(<a href="../../../../../../org/apache/edgent/oplet/core/Sink.html" title="class in org.apache.edgent.oplet.core">Sink</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>> oplet)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/edgent/topology/TStream.html#sink-org.apache.edgent.oplet.core.Sink-">TStream</a></code></span></div> |
| <div class="block">Sink (terminate) this stream using a oplet. |
| This provides a richer api for a sink than |
| <a href="../../../../../../org/apache/edgent/topology/TStream.html#sink-org.apache.edgent.function.Consumer-"><code>TStream.sink(Consumer)</code></a> with a full life-cycle of |
| the oplet as well as easy access to |
| <a href="../../../../../../org/apache/edgent/execution/services/RuntimeServices.html" title="interface in org.apache.edgent.execution.services"><code>runtime services</code></a>.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>oplet</code> - Oplet processes each tuple without producing output.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>sink element representing termination of this stream.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="pipe-org.apache.edgent.oplet.core.Pipe-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>pipe</h4> |
| <pre>public <U> <a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><U> pipe(<a href="../../../../../../org/apache/edgent/oplet/core/Pipe.html" title="class in org.apache.edgent.oplet.core">Pipe</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>,U> pipe)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/edgent/topology/TStream.html#pipe-org.apache.edgent.oplet.core.Pipe-">TStream</a></code></span></div> |
| <div class="block">Declare a stream that contains the output of the specified <a href="../../../../../../org/apache/edgent/oplet/core/Pipe.html" title="class in org.apache.edgent.oplet.core"><code>Pipe</code></a> |
| oplet applied to this stream.</div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>U</code> - Tuple type of the returned stream.</dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>pipe</code> - The <a href="../../../../../../org/apache/edgent/oplet/core/Pipe.html" title="class in org.apache.edgent.oplet.core"><code>Pipe</code></a> oplet.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Declared stream that contains the tuples emitted by the pipe |
| oplet.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="fanin-org.apache.edgent.oplet.core.FanIn-java.util.List-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>fanin</h4> |
| <pre>public <U> <a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><U> fanin(<a href="../../../../../../org/apache/edgent/oplet/core/FanIn.html" title="class in org.apache.edgent.oplet.core">FanIn</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>,U> fanin, |
| <a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>>> others)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/edgent/topology/TStream.html#fanin-org.apache.edgent.oplet.core.FanIn-java.util.List-">TStream</a></code></span></div> |
| <div class="block">Declare a stream that contains the output of the specified |
| <a href="../../../../../../org/apache/edgent/oplet/core/FanIn.html" title="class in org.apache.edgent.oplet.core"><code>FanIn</code></a> oplet applied to this stream and <code>others</code>.</div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>U</code> - Tuple type of the returned streams.</dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>fanin</code> - The <a href="../../../../../../org/apache/edgent/oplet/core/FanIn.html" title="class in org.apache.edgent.oplet.core"><code>FanIn</code></a> oplet.</dd> |
| <dd><code>others</code> - The other input streams. |
| Must not be empty or contain duplicates or <code>this</code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a stream that contains the tuples emitted by the oplet.</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../org/apache/edgent/topology/TStream.html#union-java.util.Set-"><code>TStream.union(Set)</code></a>, |
| <a href="../../../../../../org/apache/edgent/topology/TStream.html#pipe-org.apache.edgent.oplet.core.Pipe-"><code>TStream.pipe(Pipe)</code></a>, |
| <a href="../../../../../../org/apache/edgent/topology/TStream.html#sink-org.apache.edgent.oplet.core.Sink-"><code>TStream.sink(Sink)</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="last-int-org.apache.edgent.function.Function-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>last</h4> |
| <pre>public <K> <a href="../../../../../../org/apache/edgent/topology/TWindow.html" title="interface in org.apache.edgent.topology">TWindow</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>,K> last(int count, |
| <a href="../../../../../../org/apache/edgent/function/Function.html" title="interface in org.apache.edgent.function">Function</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>,K> keyFunction)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/edgent/topology/TStream.html#last-int-org.apache.edgent.function.Function-">TStream</a></code></span></div> |
| <div class="block">Declare a partitioned window that continually represents the last <code>count</code> |
| tuples on this stream for each partition. Each partition independently maintains the last |
| <code>count</code> tuples for each key seen on this stream. |
| If no tuples have been seen on the stream for a key then the corresponding partition will be empty. |
| <BR> |
| The window is partitioned by each tuple's key, obtained by <code>keyFunction</code>. |
| For each tuple on the stream <code>keyFunction.apply(tuple)</code> is called |
| and the returned value is the tuple's key. For any two tuples <code>ta,tb</code> in a partition |
| <code>keyFunction.apply(ta).equals(keyFunction.apply(tb))</code> is true. |
| <BR> |
| The key function must return keys that implement <code>equals()</code> and <code>hashCode()</code> correctly. |
| <P> |
| To create a window partitioned using the tuple as the key use <a href="../../../../../../org/apache/edgent/function/Functions.html#identity--"><code>identity()</code></a> |
| as the key function. |
| </P> |
| <P> |
| To create an unpartitioned window use a key function that returns a constant, |
| by convention <a href="../../../../../../org/apache/edgent/function/Functions.html#unpartitioned--"><code>unpartitioned()</code></a> is recommended. |
| </P></div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>K</code> - Key type.</dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>count</code> - Number of tuples to maintain in each partition.</dd> |
| <dd><code>keyFunction</code> - Function that defines the key for each tuple.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Window on this stream representing the last <code>count</code> tuples for each partition.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="last-long-java.util.concurrent.TimeUnit-org.apache.edgent.function.Function-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>last</h4> |
| <pre>public <K> <a href="../../../../../../org/apache/edgent/topology/TWindow.html" title="interface in org.apache.edgent.topology">TWindow</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>,K> last(long time, |
| <a href="http://docs.oracle.com/javase/8/docs/api/java/util/concurrent/TimeUnit.html?is-external=true" title="class or interface in java.util.concurrent">TimeUnit</a> unit, |
| <a href="../../../../../../org/apache/edgent/function/Function.html" title="interface in org.apache.edgent.function">Function</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>,K> keyFunction)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/edgent/topology/TStream.html#last-long-java.util.concurrent.TimeUnit-org.apache.edgent.function.Function-">TStream</a></code></span></div> |
| <div class="block">Declare a partitioned window that continually represents the last <code>time</code> seconds of |
| tuples on this stream for each partition. If no tuples have been |
| seen on the stream for a key in the last <code>time</code> seconds then the partition will be empty. |
| Each partition independently maintains the last |
| <code>count</code> tuples for each key seen on this stream. |
| <BR> |
| The window is partitioned by each tuple's key, obtained by <code>keyFunction</code>. |
| For each tuple on the stream <code>keyFunction.apply(tuple)</code> is called |
| and the returned value is the tuple's key. For any two tuples <code>ta,tb</code> in a partition |
| <code>keyFunction.apply(ta).equals(keyFunction.apply(tb))</code> is true. |
| <BR> |
| The key function must return keys that implement <code>equals()</code> and <code>hashCode()</code> correctly. |
| <P> |
| To create a window partitioned using the tuple as the key use <a href="../../../../../../org/apache/edgent/function/Functions.html#identity--"><code>identity()</code></a> |
| as the key function. |
| </P> |
| <P> |
| To create an unpartitioned window use a key function that returns a constant, |
| by convention <a href="../../../../../../org/apache/edgent/function/Functions.html#unpartitioned--"><code>unpartitioned()</code></a> is recommended. |
| </P></div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>K</code> - Key type.</dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>time</code> - Time to retain a tuple in a partition.</dd> |
| <dd><code>unit</code> - Unit for <code>time</code>.</dd> |
| <dd><code>keyFunction</code> - Function that defines the key for each tuple.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Partitioned window on this stream representing the last <code>count</code> tuple.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="join-org.apache.edgent.function.Function-org.apache.edgent.topology.TWindow-org.apache.edgent.function.BiFunction-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>join</h4> |
| <pre>public <J,U,K> <a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><J> join(<a href="../../../../../../org/apache/edgent/function/Function.html" title="interface in org.apache.edgent.function">Function</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>,K> keyer, |
| <a href="../../../../../../org/apache/edgent/topology/TWindow.html" title="interface in org.apache.edgent.topology">TWindow</a><U,K> twindow, |
| <a href="../../../../../../org/apache/edgent/function/BiFunction.html" title="interface in org.apache.edgent.function">BiFunction</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>,<a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><U>,J> joiner)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/edgent/topology/TStream.html#join-org.apache.edgent.function.Function-org.apache.edgent.topology.TWindow-org.apache.edgent.function.BiFunction-">TStream</a></code></span></div> |
| <div class="block">Join this stream with a partitioned window of type <code>U</code> with key type <code>K</code>. |
| For each tuple on this stream, it is joined with the contents of <code>window</code> |
| for the key <code>keyer.apply(tuple)</code>. Each tuple is |
| passed into <code>joiner</code> and the return value is submitted to the |
| returned stream. If call returns null then no tuple is submitted.</div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>J</code> - Tuple type of result stream</dd> |
| <dd><code>U</code> - Tuple type of window to join with</dd> |
| <dd><code>K</code> - Key type</dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>keyer</code> - Key function for this stream to match the window's key.</dd> |
| <dd><code>twindow</code> - Keyed window to join this stream with.</dd> |
| <dd><code>joiner</code> - Join function.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>A stream that is the results of joining this stream with |
| <code>window</code>.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="joinLast-org.apache.edgent.function.Function-org.apache.edgent.topology.TStream-org.apache.edgent.function.Function-org.apache.edgent.function.BiFunction-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
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| <h4>joinLast</h4> |
| <pre>public <J,U,K> <a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><J> joinLast(<a href="../../../../../../org/apache/edgent/function/Function.html" title="interface in org.apache.edgent.function">Function</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>,K> keyer, |
| <a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><U> lastStream, |
| <a href="../../../../../../org/apache/edgent/function/Function.html" title="interface in org.apache.edgent.function">Function</a><U,K> lastStreamKeyer, |
| <a href="../../../../../../org/apache/edgent/function/BiFunction.html" title="interface in org.apache.edgent.function">BiFunction</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>,U,J> joiner)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/edgent/topology/TStream.html#joinLast-org.apache.edgent.function.Function-org.apache.edgent.topology.TStream-org.apache.edgent.function.Function-org.apache.edgent.function.BiFunction-">TStream</a></code></span></div> |
| <div class="block">Join this stream with the last tuple seen on a stream of type <code>U</code> |
| with partitioning. |
| For each tuple on this |
| stream, it is joined with the last tuple seen on <code>lastStream</code> |
| with a matching key (of type <code>K</code>). |
| <BR> |
| Each tuple <code>t</code> on this stream will match the last tuple |
| <code>u</code> on <code>lastStream</code> if |
| <code>keyer.apply(t).equals(lastStreamKeyer.apply(u))</code> |
| is true. |
| <BR> |
| The assumption is made that |
| the key classes correctly implement the contract for <code>equals</code> and |
| <code>hashCode()</code>. |
| <P>Each tuple is |
| passed into <code>joiner</code> and the return value is submitted to the |
| returned stream. If call returns null then no tuple is submitted. |
| </P></div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>J</code> - Tuple type of result stream</dd> |
| <dd><code>U</code> - Tuple type of stream to join with</dd> |
| <dd><code>K</code> - Key type</dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>keyer</code> - Key function for this stream</dd> |
| <dd><code>lastStream</code> - Stream to join with.</dd> |
| <dd><code>lastStreamKeyer</code> - Key function for <code>lastStream</code></dd> |
| <dd><code>joiner</code> - Join function.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>A stream that is the results of joining this stream with |
| <code>lastStream</code>.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="union-java.util.Set-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>union</h4> |
| <pre>public <a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>> union(<a href="http://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a><<a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>>> others)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/edgent/topology/TStream.html#union-java.util.Set-">TStream</a></code></span></div> |
| <div class="block">Declare a stream that will contain all tuples from this stream and all the |
| streams in <code>others</code>. A stream cannot be unioned with itself, in |
| this case the union will only contain tuples from this stream once. If |
| <code>others</code> is empty or only contains <code>this</code> then <code>this</code> |
| is returned.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>others</code> - Stream to union with this stream.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>A stream that is the union of <code>this</code> and <code>others</code>.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="tag-java.lang.String...-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>tag</h4> |
| <pre>public <a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>> tag(<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>... values)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/edgent/topology/TStream.html#tag-java.lang.String...-">TStream</a></code></span></div> |
| <div class="block">Adds the specified tags to the stream. Adding the same tag to |
| a stream multiple times will not change the result beyond the |
| initial application.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>values</code> - Tag values.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The tagged stream.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getTags--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getTags</h4> |
| <pre>public <a href="http://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a><<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>> getTags()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/edgent/topology/TStream.html#getTags--">TStream</a></code></span></div> |
| <div class="block">Returns the set of tags associated with this stream.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>set of tags</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="alias-java.lang.String-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>alias</h4> |
| <pre>public <a href="../../../../../../org/apache/edgent/topology/TStream.html" title="interface in org.apache.edgent.topology">TStream</a><<a href="../../../../../../org/apache/edgent/topology/spi/graph/ConnectorStream.html" title="type parameter in ConnectorStream">T</a>> alias(<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> alias)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/edgent/topology/TStream.html#alias-java.lang.String-">TStream</a></code></span></div> |
| <div class="block">Set an alias for the stream. |
| <p> |
| The alias must be unique within the topology. |
| The alias may be used in various contexts: |
| </p> |
| <ul> |
| <li>Runtime control services for the stream are registered with this alias.</li> |
| </ul></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>alias</code> - an alias for the stream.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>this</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../org/apache/edgent/execution/services/ControlService.html" title="interface in org.apache.edgent.execution.services"><code>ControlService</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getAlias--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getAlias</h4> |
| <pre>public <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> getAlias()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/edgent/topology/TStream.html#getAlias--">TStream</a></code></span></div> |
| <div class="block">Returns the stream's alias if any.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the alias. null if one has not be set.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="toString--"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>toString</h4> |
| <pre>public <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> toString()</pre> |
| <div class="block">Intended only as a debug aid and content is not guaranteed.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a></code> in class <code><a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></dd> |
| </dl> |
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