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| <div class="subTitle">org.eclipse.microprofile.metrics.annotation</div> |
| <h2 title="Annotation Type Metric" class="title">Annotation Type Metric</h2> |
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| <pre><a href="../../../../../javax/interceptor/InterceptorBinding.html" title="annotation in javax.interceptor">@InterceptorBinding</a> |
| @Retention(value=RUNTIME) |
| @Target(value={METHOD,FIELD,PARAMETER,ANNOTATION_TYPE}) |
| public @interface <span class="memberNameLabel">Metric</span></pre> |
| <div class="block">An annotation requesting that a metric be injected or registered. |
| The metric will be registered in the application MetricRegistry. |
| |
| Given an injected field annotated with @Metric like this: |
| <pre><code> |
| @Inject |
| @Metric(name="histogram") |
| public Histogram histogram; |
| </code></pre> |
| A meter of the field's type will be created and injected into managed objects. |
| It will be up to the user to interact with the metric. This annotation |
| can be used on fields of type Meter, Timer, Counter, and Histogram. |
| <p> |
| This may also be used to register a metric. |
| </p> |
| <pre><code> |
| @Produces |
| @Metric(name="hitPercentage") |
| @ApplicationScoped |
| Gauge<Double> hitPercentage = new Gauge<Double>() { |
| |
| @Override |
| public Double getValue() { |
| return hits / total; |
| } |
| }; |
| </code></pre></div> |
| </li> |
| </ul> |
| </div> |
| <div class="summary"> |
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| <li class="blockList"> |
| <!-- =========== ANNOTATION TYPE OPTIONAL MEMBER SUMMARY =========== --> |
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| <!-- --> |
| </a> |
| <h3>Optional Element Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Optional Element Summary table, listing optional elements, and an explanation"> |
| <caption><span>Optional Elements</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Optional Element and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/eclipse/microprofile/metrics/annotation/Metric.html#absolute--">absolute</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/eclipse/microprofile/metrics/annotation/Metric.html#description--">description</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/eclipse/microprofile/metrics/annotation/Metric.html#displayName--">displayName</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/eclipse/microprofile/metrics/annotation/Metric.html#name--">name</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>java.lang.String[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/eclipse/microprofile/metrics/annotation/Metric.html#tags--">tags</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/eclipse/microprofile/metrics/annotation/Metric.html#unit--">unit</a></span></code> </td> |
| </tr> |
| </table> |
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| </li> |
| </ul> |
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| <div class="details"> |
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| <!-- ============ ANNOTATION TYPE MEMBER DETAIL =========== --> |
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| <h3>Element Detail</h3> |
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| <h4>name</h4> |
| <pre>public abstract java.lang.String name</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The name of the metric.</dd> |
| </dl> |
| <dl> |
| <dt>Default:</dt> |
| <dd>""</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
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| <h4>tags</h4> |
| <pre>public abstract java.lang.String[] tags</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The tags of the metric. Each <code>String</code> tag must be in the form of 'key=value'. If the input is empty or does |
| not contain a '=' sign, the entry is ignored.</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../org/eclipse/microprofile/metrics/Metadata.html" title="class in org.eclipse.microprofile.metrics"><code>Metadata</code></a></dd> |
| </dl> |
| <dl> |
| <dt>Default:</dt> |
| <dd>{}</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>absolute</h4> |
| <pre>public abstract boolean absolute</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>If <code>true</code>, use the given name as an absolute name. If <code>false</code> (default), |
| use the given name relative to the annotated class.</dd> |
| </dl> |
| <dl> |
| <dt>Default:</dt> |
| <dd>false</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
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| <h4>displayName</h4> |
| <pre>public abstract java.lang.String displayName</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The display name of the metric.</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../org/eclipse/microprofile/metrics/Metadata.html" title="class in org.eclipse.microprofile.metrics"><code>Metadata</code></a></dd> |
| </dl> |
| <dl> |
| <dt>Default:</dt> |
| <dd>""</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
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| <h4>description</h4> |
| <pre>public abstract java.lang.String description</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The description of the metric.</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../org/eclipse/microprofile/metrics/Metadata.html" title="class in org.eclipse.microprofile.metrics"><code>Metadata</code></a></dd> |
| </dl> |
| <dl> |
| <dt>Default:</dt> |
| <dd>""</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| <ul class="blockList"> |
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| </a> |
| <ul class="blockListLast"> |
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| <h4>unit</h4> |
| <pre>public abstract java.lang.String unit</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The unit of the metric. By default, the value is <a href="../../../../../org/eclipse/microprofile/metrics/MetricUnits.html#NONE"><code>MetricUnits.NONE</code></a>.</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../org/eclipse/microprofile/metrics/Metadata.html" title="class in org.eclipse.microprofile.metrics"><code>Metadata</code></a>, |
| <a href="../../../../../org/eclipse/microprofile/metrics/MetricUnits.html" title="class in org.eclipse.microprofile.metrics"><code>MetricUnits</code></a></dd> |
| </dl> |
| <dl> |
| <dt>Default:</dt> |
| <dd>"none"</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
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