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| <div class="subTitle">org.apache.logging.log4j.core.lookup</div> |
| <h2 title="Class MarkerLookup" class="title">Class MarkerLookup</h2> |
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| <li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li> |
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| <li><a href="../../../../../../org/apache/logging/log4j/core/lookup/AbstractLookup.html" title="class in org.apache.logging.log4j.core.lookup">org.apache.logging.log4j.core.lookup.AbstractLookup</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.logging.log4j.core.lookup.MarkerLookup</li> |
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| <dd><a href="../../../../../../org/apache/logging/log4j/core/lookup/StrLookup.html" title="interface in org.apache.logging.log4j.core.lookup">StrLookup</a></dd> |
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| <br> |
| <pre><a href="../../../../../../org/apache/logging/log4j/core/config/plugins/Plugin.html" title="annotation in org.apache.logging.log4j.core.config.plugins">@Plugin</a>(<a href="../../../../../../org/apache/logging/log4j/core/config/plugins/Plugin.html#name--">name</a>="marker", |
| <a href="../../../../../../org/apache/logging/log4j/core/config/plugins/Plugin.html#category--">category</a>="Lookup") |
| public class <a href="../../../../../../src-html/org/apache/logging/log4j/core/lookup/MarkerLookup.html#line.31">MarkerLookup</a> |
| extends <a href="../../../../../../org/apache/logging/log4j/core/lookup/AbstractLookup.html" title="class in org.apache.logging.log4j.core.lookup">AbstractLookup</a></pre> |
| <div class="block">Looks-up markers.</div> |
| <dl> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>2.4</dd> |
| </dl> |
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| <h3>Fields inherited from interface org.apache.logging.log4j.core.lookup.<a href="../../../../../../org/apache/logging/log4j/core/lookup/StrLookup.html" title="interface in org.apache.logging.log4j.core.lookup">StrLookup</a></h3> |
| <code><a href="../../../../../../org/apache/logging/log4j/core/lookup/StrLookup.html#CATEGORY">CATEGORY</a></code></li> |
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| <th class="colOne" scope="col">Constructor and Description</th> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/logging/log4j/core/lookup/MarkerLookup.html#MarkerLookup--">MarkerLookup</a></span>()</code> </td> |
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| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/logging/log4j/core/lookup/MarkerLookup.html#lookup-org.apache.logging.log4j.core.LogEvent-java.lang.String-">lookup</a></span>(<a href="../../../../../../org/apache/logging/log4j/core/LogEvent.html" title="interface in org.apache.logging.log4j.core">LogEvent</a> event, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> key)</code> |
| <div class="block">Looks up a String key to a String value possibly using the current LogEvent.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/logging/log4j/core/lookup/MarkerLookup.html#lookup-java.lang.String-">lookup</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> key)</code> |
| <div class="block">Calls <code>lookup(null, key)</code> in the super class.</div> |
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| <code><a href="https://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="https://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="https://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="https://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="https://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="https://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="https://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="https://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="https://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="https://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="https://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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| <!-- --> |
| </a> |
| <h3>Constructor Detail</h3> |
| <a name="MarkerLookup--"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>MarkerLookup</h4> |
| <pre>public <a href="../../../../../../src-html/org/apache/logging/log4j/core/lookup/MarkerLookup.html#line.31">MarkerLookup</a>()</pre> |
| </li> |
| </ul> |
| </li> |
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| </a> |
| <h3>Method Detail</h3> |
| <a name="lookup-org.apache.logging.log4j.core.LogEvent-java.lang.String-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>lookup</h4> |
| <pre>public <a href="https://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="../../../../../../src-html/org/apache/logging/log4j/core/lookup/MarkerLookup.html#line.36">lookup</a>(<a href="../../../../../../org/apache/logging/log4j/core/LogEvent.html" title="interface in org.apache.logging.log4j.core">LogEvent</a> event, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> key)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../org/apache/logging/log4j/core/lookup/StrLookup.html#lookup-org.apache.logging.log4j.core.LogEvent-java.lang.String-">StrLookup</a></code></span></div> |
| <div class="block">Looks up a String key to a String value possibly using the current LogEvent. |
| <p> |
| The internal implementation may use any mechanism to return the value. |
| The simplest implementation is to use a Map. However, virtually any |
| implementation is possible. |
| </p> |
| <p> |
| For example, it would be possible to implement a lookup that used the |
| key as a primary key, and looked up the value on demand from the database |
| Or, a numeric based implementation could be created that treats the key |
| as an integer, increments the value and return the result as a string - |
| converting 1 to 2, 15 to 16 etc. |
| </p> |
| <p> |
| This method always returns a String, regardless of |
| the underlying data, by converting it as necessary. For example: |
| </p> |
| <pre> |
| Map<String, Object> map = new HashMap<String, Object>(); |
| map.put("number", new Integer(2)); |
| assertEquals("2", StrLookup.mapLookup(map).lookup("number")); |
| </pre></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>event</code> - The current LogEvent.</dd> |
| <dd><code>key</code> - the key to be looked up, may be null</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the matching value, null if no match</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="lookup-java.lang.String-"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>lookup</h4> |
| <pre>public <a href="https://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="../../../../../../src-html/org/apache/logging/log4j/core/lookup/MarkerLookup.html#line.42">lookup</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> key)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../../../org/apache/logging/log4j/core/lookup/AbstractLookup.html#lookup-java.lang.String-">AbstractLookup</a></code></span></div> |
| <div class="block">Calls <code>lookup(null, key)</code> in the super class.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/logging/log4j/core/lookup/StrLookup.html#lookup-java.lang.String-">lookup</a></code> in interface <code><a href="../../../../../../org/apache/logging/log4j/core/lookup/StrLookup.html" title="interface in org.apache.logging.log4j.core.lookup">StrLookup</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/logging/log4j/core/lookup/AbstractLookup.html#lookup-java.lang.String-">lookup</a></code> in class <code><a href="../../../../../../org/apache/logging/log4j/core/lookup/AbstractLookup.html" title="class in org.apache.logging.log4j.core.lookup">AbstractLookup</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>key</code> - the key to be looked up, may be null</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the matching value, null if no match</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../org/apache/logging/log4j/core/lookup/StrLookup.html#lookup-org.apache.logging.log4j.core.LogEvent-java.lang.String-"><code>StrLookup.lookup(LogEvent, String)</code></a></dd> |
| </dl> |
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