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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.heron.spi.packing</a></div> |
| <h2 title="Interface IPacking" class="title">Interface IPacking</h2> |
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| <dt>All Superinterfaces:</dt> |
| <dd><code>java.lang.AutoCloseable</code></dd> |
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| <dt>All Known Implementing Classes:</dt> |
| <dd><code><a href="../../packing/AbstractPacking.html" title="class in org.apache.heron.packing">AbstractPacking</a></code>, <code><a href="../../packing/binpacking/FirstFitDecreasingPacking.html" title="class in org.apache.heron.packing.binpacking">FirstFitDecreasingPacking</a></code>, <code><a href="../../packing/roundrobin/ResourceCompliantRRPacking.html" title="class in org.apache.heron.packing.roundrobin">ResourceCompliantRRPacking</a></code>, <code><a href="../../packing/roundrobin/RoundRobinPacking.html" title="class in org.apache.heron.packing.roundrobin">RoundRobinPacking</a></code></dd> |
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| <pre><a href="../../classification/InterfaceAudience.LimitedPrivate.html" title="annotation in org.apache.heron.classification">@LimitedPrivate</a> |
| <a href="../../classification/InterfaceStability.Unstable.html" title="annotation in org.apache.heron.classification">@Unstable</a> |
| public interface <span class="typeNameLabel">IPacking</span> |
| extends java.lang.AutoCloseable</pre> |
| <div class="block">Packing algorithm to use for packing multiple instances into containers. Packing hints like |
| number of containers may be passed through scheduler config. Configs might contain settings for |
| the number of containers requested or the amount of instance or container resources to allocate. |
| Implementations may choose to ignore some or all of these settings as needed, since they could be |
| contradictory, or not all possible to be achieved based on the algorithm.</div> |
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| <td class="colFirst"><code>void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#close()">close</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">This is to for disposing or cleaning up any internal state accumulated by |
| the uploader</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#initialize(org.apache.heron.spi.common.Config,org.apache.heron.api.generated.TopologyAPI.Topology)">initialize</a></span>​(<a href="../common/Config.html" title="class in org.apache.heron.spi.common">Config</a> config, |
| <a href="../../api/generated/TopologyAPI.Topology.html" title="class in org.apache.heron.api.generated">TopologyAPI.Topology</a> topology)</code></th> |
| <td class="colLast"> |
| <div class="block">Initialize the packing algorithm with the static config and the topology</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="PackingPlan.html" title="class in org.apache.heron.spi.packing">PackingPlan</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#pack()">pack</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Called by scheduler to generate container packing.</div> |
| </td> |
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| <h4>initialize</h4> |
| <pre class="methodSignature">void initialize​(<a href="../common/Config.html" title="class in org.apache.heron.spi.common">Config</a> config, |
| <a href="../../api/generated/TopologyAPI.Topology.html" title="class in org.apache.heron.api.generated">TopologyAPI.Topology</a> topology)</pre> |
| <div class="block">Initialize the packing algorithm with the static config and the topology</div> |
| </li> |
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| <a id="pack()"> |
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| <h4>pack</h4> |
| <pre class="methodSignature"><a href="PackingPlan.html" title="class in org.apache.heron.spi.packing">PackingPlan</a> pack() |
| throws <a href="PackingException.html" title="class in org.apache.heron.spi.packing">PackingException</a></pre> |
| <div class="block">Called by scheduler to generate container packing. |
| Packing algorithm output generates instance id and container id.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>PackingPlan describing the job to schedule.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="PackingException.html" title="class in org.apache.heron.spi.packing">PackingException</a></code> - if the packing plan can not be generated</dd> |
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| <h4>close</h4> |
| <pre class="methodSignature">void close()</pre> |
| <div class="block">This is to for disposing or cleaning up any internal state accumulated by |
| the uploader |
| <p> |
| Closes this stream and releases any system resources associated |
| with it. If the stream is already closed then invoking this |
| method has no effect.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code>close</code> in interface <code>java.lang.AutoCloseable</code></dd> |
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