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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 IRepacking" class="title">Interface IRepacking</h2> |
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| <dt>All Superinterfaces:</dt> |
| <dd><code>java.lang.AutoCloseable</code></dd> |
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| <dl> |
| <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">IRepacking</span> |
| extends java.lang.AutoCloseable</pre> |
| <div class="block">Packing algorithm for adding and/or removing component instances from an existing packing plan |
| Packing hints like number of containers may be passed through scheduler config.</div> |
| </li> |
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| <h3>Method Summary</h3> |
| <table class="memberSummary"> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Method</th> |
| <th class="colLast" scope="col">Description</th> |
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| <tr id="i0" class="altColor"> |
| <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.</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 associated 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="#repack(org.apache.heron.spi.packing.PackingPlan,int,java.util.Map)">repack</a></span>​(<a href="PackingPlan.html" title="class in org.apache.heron.spi.packing">PackingPlan</a> currentPackingPlan, |
| int containers, |
| java.util.Map<java.lang.String,​java.lang.Integer> componentChanges)</code></th> |
| <td class="colLast"> |
| <div class="block">Generates a new packing given an existing packing and component changes |
| Packing algorithm output generates instance id and container id.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <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="#repack(org.apache.heron.spi.packing.PackingPlan,java.util.Map)">repack</a></span>​(<a href="PackingPlan.html" title="class in org.apache.heron.spi.packing">PackingPlan</a> currentPackingPlan, |
| java.util.Map<java.lang.String,​java.lang.Integer> componentChanges)</code></th> |
| <td class="colLast"> |
| <div class="block">Generates a new packing given an existing packing and component changes |
| Packing algorithm output generates instance id and container id.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| </section> |
| </li> |
| </ul> |
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| <h3>Method Detail</h3> |
| <a id="initialize(org.apache.heron.spi.common.Config,org.apache.heron.api.generated.TopologyAPI.Topology)"> |
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| </a> |
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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 associated topology</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>config</code> - topology config</dd> |
| <dd><code>topology</code> - topology to repack</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="repack(org.apache.heron.spi.packing.PackingPlan,java.util.Map)"> |
| <!-- --> |
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| <h4>repack</h4> |
| <pre class="methodSignature"><a href="PackingPlan.html" title="class in org.apache.heron.spi.packing">PackingPlan</a> repack​(<a href="PackingPlan.html" title="class in org.apache.heron.spi.packing">PackingPlan</a> currentPackingPlan, |
| java.util.Map<java.lang.String,​java.lang.Integer> componentChanges) |
| throws <a href="PackingException.html" title="class in org.apache.heron.spi.packing">PackingException</a></pre> |
| <div class="block">Generates a new packing given an existing packing and component changes |
| Packing algorithm output generates instance id and container id.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>currentPackingPlan</code> - Existing packing plan</dd> |
| <dd><code>componentChanges</code> - Map < componentName, new component parallelism > |
| that contains the parallelism for each component whose parallelism has changed.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>PackingPlan describing the new packing plan.</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> |
| </dl> |
| </li> |
| </ul> |
| <a id="repack(org.apache.heron.spi.packing.PackingPlan,int,java.util.Map)"> |
| <!-- --> |
| </a> |
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| <li class="blockList"> |
| <h4>repack</h4> |
| <pre class="methodSignature"><a href="PackingPlan.html" title="class in org.apache.heron.spi.packing">PackingPlan</a> repack​(<a href="PackingPlan.html" title="class in org.apache.heron.spi.packing">PackingPlan</a> currentPackingPlan, |
| int containers, |
| java.util.Map<java.lang.String,​java.lang.Integer> componentChanges) |
| throws <a href="PackingException.html" title="class in org.apache.heron.spi.packing">PackingException</a></pre> |
| <div class="block">Generates a new packing given an existing packing and component changes |
| Packing algorithm output generates instance id and container id.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>currentPackingPlan</code> - Existing packing plan</dd> |
| <dd><code>componentChanges</code> - Map < componentName, new component parallelism > |
| that contains the parallelism for each component whose parallelism has changed.</dd> |
| <dd><code>containers</code> - < the new number of containers for the topology |
| specified by the user</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>PackingPlan describing the new packing plan.</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> |
| </dl> |
| </li> |
| </ul> |
| <a id="close()"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>close</h4> |
| <pre class="methodSignature">void close()</pre> |
| <div class="block">This is to for disposing or cleaning up any internal state. |
| 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> |
| </dl> |
| </li> |
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