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| <div class="subTitle">org.apache.edgent.execution.services</div> |
| <h2 title="Class ServiceContainer" class="title">Class ServiceContainer</h2> |
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| <li>org.apache.edgent.execution.services.ServiceContainer</li> |
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| <pre>public class <span class="typeNameLabel">ServiceContainer</span> |
| extends <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></pre> |
| <div class="block">Provides a container for services. |
| <p> |
| The current implementation does not downcast the provided service class |
| when searching for an appropriate service implementation. For example: |
| <pre> |
| class Derived extends Base {} |
| |
| serviceContainer.add(Derived.class, instanceOfDerived); |
| |
| // Searching for the base class returns null |
| assert(null == serviceContainer.get(Base.class, instanceOfDerived)); |
| </pre></div> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/edgent/execution/services/ServiceContainer.html#ServiceContainer--">ServiceContainer</a></span>()</code> </td> |
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| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/edgent/execution/services/ServiceContainer.html#addCleaner-org.apache.edgent.function.BiConsumer-">addCleaner</a></span>(<a href="../../../../../org/apache/edgent/function/BiConsumer.html" title="interface in org.apache.edgent.function">BiConsumer</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>,<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>> cleaner)</code> |
| <div class="block">Registers a new cleaner.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><T> T</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/edgent/execution/services/ServiceContainer.html#addService-java.lang.Class-T-">addService</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><T> serviceClass, |
| T service)</code> |
| <div class="block">Adds the specified service to this <code>ServiceContainer</code>.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/edgent/execution/services/ServiceContainer.html#cleanOplet-java.lang.String-java.lang.String-">cleanOplet</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> jobId, |
| <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> elementId)</code> |
| <div class="block">Invokes all the registered cleaners in the context of the specified |
| job and element.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code><T> T</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/edgent/execution/services/ServiceContainer.html#getService-java.lang.Class-">getService</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><T> serviceClass)</code> |
| <div class="block">Returns the service to which the specified service class key is |
| mapped, or <code>null</code> if this <code>ServiceContainer</code> contains no |
| service for that key.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code><T> T</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/edgent/execution/services/ServiceContainer.html#removeService-java.lang.Class-">removeService</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><T> serviceClass)</code> |
| <div class="block">Removes the specified service from this <code>ServiceContainer</code>.</div> |
| </td> |
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| <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#toString--" title="class or interface in java.lang">toString</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> |
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| <h3>Constructor Detail</h3> |
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| <h4>ServiceContainer</h4> |
| <pre>public ServiceContainer()</pre> |
| </li> |
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| <h3>Method Detail</h3> |
| <a name="addService-java.lang.Class-java.lang.Object-"> |
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| <h4>addService</h4> |
| <pre>public <T> T addService(<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><T> serviceClass, |
| T service)</pre> |
| <div class="block">Adds the specified service to this <code>ServiceContainer</code>. |
| <p> |
| Associates the specified service with the service class. If the |
| container has previously contained a service for the class, |
| the old value is replaced by the specified value.</div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>T</code> - service class type</dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>serviceClass</code> - the class of service to add.</dd> |
| <dd><code>service</code> - service to add to this container.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the previous value associated with <code>serviceClass</code>, or |
| <code>null</code> if there was no registered mapping.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="http://docs.oracle.com/javase/8/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang">NullPointerException</a></code> - if the specified service class or |
| service is null.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="removeService-java.lang.Class-"> |
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| <h4>removeService</h4> |
| <pre>public <T> T removeService(<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><T> serviceClass)</pre> |
| <div class="block">Removes the specified service from this <code>ServiceContainer</code>.</div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>T</code> - service class type</dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>serviceClass</code> - the class of service to remove.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the service previously associated with the service class, or |
| <code>null</code> if there was no registered service.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="http://docs.oracle.com/javase/8/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang">NullPointerException</a></code> - if the specified service class is null.</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>getService</h4> |
| <pre>public <T> T getService(<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><T> serviceClass)</pre> |
| <div class="block">Returns the service to which the specified service class key is |
| mapped, or <code>null</code> if this <code>ServiceContainer</code> contains no |
| service for that key.</div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>T</code> - service class type</dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>serviceClass</code> - the class whose associated service is to be returned</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the service instance mapped to the specified service class, or |
| <code>null</code> if no service is registered for the class.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="addCleaner-org.apache.edgent.function.BiConsumer-"> |
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| <h4>addCleaner</h4> |
| <pre>public void addCleaner(<a href="../../../../../org/apache/edgent/function/BiConsumer.html" title="interface in org.apache.edgent.function">BiConsumer</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>,<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>> cleaner)</pre> |
| <div class="block">Registers a new cleaner. |
| <p> |
| A cleaner is a hook which is invoked when the runtime |
| closes an element of <a href="../../../../../org/apache/edgent/execution/Job.html" title="interface in org.apache.edgent.execution"><code>Job</code></a>. |
| When an element of job is closed <code>cleaner.accept(jobId, elementId)</code> |
| is called where <code>jobId</code> is the <a href="../../../../../org/apache/edgent/execution/Job.html#getId--"><code>job identifier</code></a> and |
| <code>elementId</code> is the unique identifier for the element.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>cleaner</code> - The cleaner.</dd> |
| </dl> |
| </li> |
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| <h4>cleanOplet</h4> |
| <pre>public void cleanOplet(<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> jobId, |
| <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> elementId)</pre> |
| <div class="block">Invokes all the registered cleaners in the context of the specified |
| job and element.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>jobId</code> - The job identifier.</dd> |
| <dd><code>elementId</code> - The element identifier.</dd> |
| </dl> |
| </li> |
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