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| <div class="subTitle">net.jini.lease</div> | |
| <h2 title="Class LeaseRenewalEvent" class="title">Class LeaseRenewalEvent</h2> | |
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| <li><a href="http://docs.oracle.com/javase/6/docs/api/java/util/EventObject.html?is-external=true" title="class or interface in java.util">java.util.EventObject</a></li> | |
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| <li>net.jini.lease.LeaseRenewalEvent</li> | |
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| <pre>public class <span class="typeNameLabel">LeaseRenewalEvent</span> | |
| extends <a href="http://docs.oracle.com/javase/6/docs/api/java/util/EventObject.html?is-external=true" title="class or interface in java.util">EventObject</a></pre> | |
| <div class="block">Event generated when a <code>LeaseRenewalManager</code> cannot renew | |
| a lease. | |
| <p> | |
| The <code>LeaseRenewalEvent</code> instances are sent to the | |
| <code>LeaseListener</code> (if any) associated with a given lease | |
| when the lease was added to the managed set. These events are | |
| typically generated because one of the following conditions occur: | |
| <ul> | |
| <li> After successfully renewing a lease any number of times and | |
| experiencing no failures, the <code>LeaseRenewalManager</code> | |
| determines, prior to the next renewal attempt, that the actual | |
| expiration time of the lease has passed, implying that any | |
| further attempt to renew the lease would be fruitless. | |
| <li> An indefinite exception occurs during each attempt to renew a | |
| lease, from the point that the first such exception occurs | |
| until the point when the <code>LeaseRenewalManager</code> | |
| determines that lease's actual expiration time has passed. | |
| <li> A definite exception occurs during a lease renewal attempt. | |
| </ul> | |
| <p> | |
| Note that bad object exceptions, bad invocation exceptions, and | |
| <code>LeaseException</code>s are all considered definite | |
| exceptions. | |
| <p> | |
| This class encapsulates information about both the lease for which the | |
| failure occurred, as well as information about the condition that | |
| caused the renewal attempt to fail. | |
| <p> | |
| This class is a subclass of the class <code>EventObject</code>, | |
| adding the following additional items of abstract state: | |
| <ul> | |
| <li> The lease on which the renewal attempt failed, and to which | |
| the event pertains | |
| <li> The desired expiration time of the affected lease | |
| <li> The <code>Throwable</code> associated with the last renewal | |
| attempt (if any) | |
| </ul> | |
| <p> | |
| In addition to the methods of the <code>EventObject</code> class, | |
| this class defines methods through which this additional state may be | |
| retrieved. | |
| <p> | |
| The source associated with a <code>LeaseRenewalEvent</code> will be | |
| the <code>LeaseRenewalManager</code> that generated the event.</div> | |
| <dl> | |
| <dt><span class="simpleTagLabel">Author:</span></dt> | |
| <dd>Sun Microsystems, Inc.</dd> | |
| <dt><span class="seeLabel">See Also:</span></dt> | |
| <dd><a href="../../../net/jini/core/lease/Lease.html" title="interface in net.jini.core.lease"><code>Lease</code></a>, | |
| <a href="../../../net/jini/core/lease/LeaseException.html" title="class in net.jini.core.lease"><code>LeaseException</code></a>, | |
| <a href="../../../net/jini/lease/LeaseRenewalManager.html" title="class in net.jini.lease"><code>LeaseRenewalManager</code></a>, | |
| <a href="../../../net/jini/lease/LeaseListener.html" title="interface in net.jini.lease"><code>LeaseListener</code></a>, | |
| <a href="http://docs.oracle.com/javase/6/docs/api/java/util/EventObject.html?is-external=true" title="class or interface in java.util"><code>EventObject</code></a>, | |
| <a href="../../../serialized-form.html#net.jini.lease.LeaseRenewalEvent">Serialized Form</a></dd> | |
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| <th class="colFirst" scope="col">Modifier and Type</th> | |
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| <tr class="altColor"> | |
| <td class="colFirst"><code>private <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a></code></td> | |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../net/jini/lease/LeaseRenewalEvent.html#ex">ex</a></span></code> | |
| <div class="block">The exception that caused the failure, if any.</div> | |
| </td> | |
| </tr> | |
| <tr class="rowColor"> | |
| <td class="colFirst"><code>private long</code></td> | |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../net/jini/lease/LeaseRenewalEvent.html#expiration">expiration</a></span></code> | |
| <div class="block">The desired expiration of the failed lease.</div> | |
| </td> | |
| </tr> | |
| <tr class="altColor"> | |
| <td class="colFirst"><code>private <a href="../../../net/jini/core/lease/Lease.html" title="interface in net.jini.core.lease">Lease</a></code></td> | |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../net/jini/lease/LeaseRenewalEvent.html#lease">lease</a></span></code> | |
| <div class="block">The failed lease.</div> | |
| </td> | |
| </tr> | |
| <tr class="rowColor"> | |
| <td class="colFirst"><code>private static long</code></td> | |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../net/jini/lease/LeaseRenewalEvent.html#serialVersionUID">serialVersionUID</a></span></code> </td> | |
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| <code><a href="http://docs.oracle.com/javase/6/docs/api/java/util/EventObject.html?is-external=true#source" title="class or interface in java.util">source</a></code></li> | |
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| <th class="colOne" scope="col">Constructor and Description</th> | |
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| <tr class="altColor"> | |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../net/jini/lease/LeaseRenewalEvent.html#LeaseRenewalEvent-net.jini.lease.LeaseRenewalManager-net.jini.core.lease.Lease-long-java.lang.Throwable-">LeaseRenewalEvent</a></span>(<a href="../../../net/jini/lease/LeaseRenewalManager.html" title="class in net.jini.lease">LeaseRenewalManager</a> source, | |
| <a href="../../../net/jini/core/lease/Lease.html" title="interface in net.jini.core.lease">Lease</a> lease, | |
| long expiration, | |
| <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a> ex)</code> | |
| <div class="block">Constructs an instance of this class with the specified state.</div> | |
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| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a></code></td> | |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../net/jini/lease/LeaseRenewalEvent.html#getException--">getException</a></span>()</code> | |
| <div class="block">Returns the exception (if any) that caused the event to be sent.</div> | |
| </td> | |
| </tr> | |
| <tr id="i1" class="rowColor"> | |
| <td class="colFirst"><code>long</code></td> | |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../net/jini/lease/LeaseRenewalEvent.html#getExpiration--">getExpiration</a></span>()</code> | |
| <div class="block">Returns the desired expiration time of the lease to which event | |
| pertains.</div> | |
| </td> | |
| </tr> | |
| <tr id="i2" class="altColor"> | |
| <td class="colFirst"><code><a href="../../../net/jini/core/lease/Lease.html" title="interface in net.jini.core.lease">Lease</a></code></td> | |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../net/jini/lease/LeaseRenewalEvent.html#getLease--">getLease</a></span>()</code> | |
| <div class="block">Returns a reference to the lease to which the event pertains.</div> | |
| </td> | |
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| <code><a href="http://docs.oracle.com/javase/6/docs/api/java/util/EventObject.html?is-external=true#getSource--" title="class or interface in java.util">getSource</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/util/EventObject.html?is-external=true#toString--" title="class or interface in java.util">toString</a></code></li> | |
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| <code><a href="http://docs.oracle.com/javase/6/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/6/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/6/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/6/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/6/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/6/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/6/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/6/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/6/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/6/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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| </a> | |
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| </a> | |
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| <h4>serialVersionUID</h4> | |
| <pre>private static final long serialVersionUID</pre> | |
| <dl> | |
| <dt><span class="seeLabel">See Also:</span></dt> | |
| <dd><a href="../../../constant-values.html#net.jini.lease.LeaseRenewalEvent.serialVersionUID">Constant Field Values</a></dd> | |
| </dl> | |
| </li> | |
| </ul> | |
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| </a> | |
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| <h4>lease</h4> | |
| <pre>private <a href="../../../net/jini/core/lease/Lease.html" title="interface in net.jini.core.lease">Lease</a> lease</pre> | |
| <div class="block">The failed lease.</div> | |
| </li> | |
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| <h4>expiration</h4> | |
| <pre>private long expiration</pre> | |
| <div class="block">The desired expiration of the failed lease.</div> | |
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| <h4>ex</h4> | |
| <pre>private <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a> ex</pre> | |
| <div class="block">The exception that caused the failure, if any.</div> | |
| </li> | |
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| <h3>Constructor Detail</h3> | |
| <a name="LeaseRenewalEvent-net.jini.lease.LeaseRenewalManager-net.jini.core.lease.Lease-long-java.lang.Throwable-"> | |
| <!-- --> | |
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| <h4>LeaseRenewalEvent</h4> | |
| <pre>public LeaseRenewalEvent(<a href="../../../net/jini/lease/LeaseRenewalManager.html" title="class in net.jini.lease">LeaseRenewalManager</a> source, | |
| <a href="../../../net/jini/core/lease/Lease.html" title="interface in net.jini.core.lease">Lease</a> lease, | |
| long expiration, | |
| <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a> ex)</pre> | |
| <div class="block">Constructs an instance of this class with the specified state.</div> | |
| <dl> | |
| <dt><span class="paramLabel">Parameters:</span></dt> | |
| <dd><code>source</code> - reference to the instance of the | |
| <code>LeaseRenewalManager</code> that generated the event</dd> | |
| <dd><code>lease</code> - the lease to which the event pertains</dd> | |
| <dd><code>expiration</code> - the desired expiration time for the affected | |
| lease</dd> | |
| <dd><code>ex</code> - the <code>Throwable</code> associated with the last | |
| renewal attempt (if any)</dd> | |
| <dt><span class="seeLabel">See Also:</span></dt> | |
| <dd><a href="../../../net/jini/core/lease/Lease.html" title="interface in net.jini.core.lease"><code>Lease</code></a>, | |
| <a href="../../../net/jini/lease/LeaseRenewalManager.html" title="class in net.jini.lease"><code>LeaseRenewalManager</code></a></dd> | |
| </dl> | |
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| </a> | |
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| <a name="getLease--"> | |
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| <h4>getLease</h4> | |
| <pre>public <a href="../../../net/jini/core/lease/Lease.html" title="interface in net.jini.core.lease">Lease</a> getLease()</pre> | |
| <div class="block">Returns a reference to the lease to which the event pertains.</div> | |
| <dl> | |
| <dt><span class="returnLabel">Returns:</span></dt> | |
| <dd>the <code>Lease</code> object corresponding to the lease | |
| on which the renewal attempt failed</dd> | |
| <dt><span class="seeLabel">See Also:</span></dt> | |
| <dd><a href="../../../net/jini/core/lease/Lease.html" title="interface in net.jini.core.lease"><code>Lease</code></a></dd> | |
| </dl> | |
| </li> | |
| </ul> | |
| <a name="getExpiration--"> | |
| <!-- --> | |
| </a> | |
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| <h4>getExpiration</h4> | |
| <pre>public long getExpiration()</pre> | |
| <div class="block">Returns the desired expiration time of the lease to which event | |
| pertains.</div> | |
| <dl> | |
| <dt><span class="returnLabel">Returns:</span></dt> | |
| <dd>a <code>long</code> value that represents the desired | |
| expiration time of the lease on which the renewal attempt | |
| failed</dd> | |
| </dl> | |
| </li> | |
| </ul> | |
| <a name="getException--"> | |
| <!-- --> | |
| </a> | |
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| <h4>getException</h4> | |
| <pre>public <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a> getException()</pre> | |
| <div class="block">Returns the exception (if any) that caused the event to be sent. | |
| The conditions under which the event may be sent, and the related | |
| values returned by this method, are as follows: | |
| <ul> | |
| <li> When any lease in the managed set has passed its actual | |
| expiration time, and either the most recent renewal attempt | |
| was successful or there have been no renewal attempts, the | |
| <code>LeaseRenewalManager</code> will cease any further | |
| attempts to renew the lease, and will send a | |
| <code>LeaseRenewalEvent</code> with no associated exception. | |
| In this case, invoking this method will return | |
| <code>null</code>. | |
| <li> For any lease from the managed set for which the most recent | |
| renewal attempt was unsuccessful because of the occurrence | |
| of a indefinite exception, the | |
| <code>LeaseRenewalManager</code> will continue to attempt to | |
| renew the affected lease at the appropriate times until: the | |
| renewal succeeds, the lease's expiration time has passed, or | |
| a renewal attempt throws a definite exception. If a definite | |
| exception is thrown or the lease expires, the | |
| <code>LeaseRenewalManager</code> will cease any further | |
| attempts to renew the lease, and will send a | |
| <code>LeaseRenewalEvent</code> containing the exception | |
| associated with the last renewal attempt. | |
| <li> If, while attempting to renew a lease from the managed set, | |
| a definite exception is encountered, the | |
| <code>LeaseRenewalManager</code> will cease any further | |
| attempts to renew the lease, and will send a | |
| <code>LeaseRenewalEvent</code> containing the particular | |
| exception that occurred. | |
| </ul></div> | |
| <dl> | |
| <dt><span class="returnLabel">Returns:</span></dt> | |
| <dd>an instance of <code>Throwable</code> or | |
| <code>null</code>, indicating the condition that caused | |
| the <code>LeaseRenewalManager</code> to fail to renew the | |
| affected lease</dd> | |
| </dl> | |
| </li> | |
| </ul> | |
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