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<div class="subTitle">org.apache.logging.log4j.message</div>
<h2 title="Class ReusableParameterizedMessage" class="title">Class ReusableParameterizedMessage</h2>
</div>
<div class="contentContainer">
<ul class="inheritance">
<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>
<li>
<ul class="inheritance">
<li>org.apache.logging.log4j.message.ReusableParameterizedMessage</li>
</ul>
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<dl>
<dt>All Implemented Interfaces:</dt>
<dd><a href="https://docs.oracle.com/javase/8/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a>, <a href="../../../../../org/apache/logging/log4j/message/Message.html" title="interface in org.apache.logging.log4j.message">Message</a>, <a href="../../../../../org/apache/logging/log4j/message/ParameterVisitable.html" title="interface in org.apache.logging.log4j.message">ParameterVisitable</a>, <a href="../../../../../org/apache/logging/log4j/message/ReusableMessage.html" title="interface in org.apache.logging.log4j.message">ReusableMessage</a>, <a href="../../../../../org/apache/logging/log4j/util/StringBuilderFormattable.html" title="interface in org.apache.logging.log4j.util">StringBuilderFormattable</a></dd>
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<hr>
<br>
<pre>public class <a href="../../../../../src-html/org/apache/logging/log4j/message/ReusableParameterizedMessage.html#line.33">ReusableParameterizedMessage</a>
extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>
implements <a href="../../../../../org/apache/logging/log4j/message/ReusableMessage.html" title="interface in org.apache.logging.log4j.message">ReusableMessage</a>, <a href="../../../../../org/apache/logging/log4j/message/ParameterVisitable.html" title="interface in org.apache.logging.log4j.message">ParameterVisitable</a></pre>
<div class="block">Reusable parameterized message. This message is mutable and is not safe to be accessed or modified by multiple
threads concurrently.</div>
<dl>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>2.6</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../org/apache/logging/log4j/message/ParameterizedMessage.html" title="class in org.apache.logging.log4j.message"><code>ParameterizedMessage</code></a>,
<a href="../../../../../serialized-form.html#org.apache.logging.log4j.message.ReusableParameterizedMessage">Serialized Form</a></dd>
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<h3>Constructor Summary</h3>
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<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colOne" scope="col">Constructor and Description</th>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/logging/log4j/message/ReusableParameterizedMessage.html#ReusableParameterizedMessage--">ReusableParameterizedMessage</a></span>()</code>
<div class="block">Creates a reusable message.</div>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<tr id="i0" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/logging/log4j/message/ReusableParameterizedMessage.html#clear--">clear</a></span>()</code>
<div class="block">Resets the object to a clean state.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>&lt;S&gt;&nbsp;void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/logging/log4j/message/ReusableParameterizedMessage.html#forEachParameter-org.apache.logging.log4j.message.ParameterConsumer-S-">forEachParameter</a></span>(<a href="../../../../../org/apache/logging/log4j/message/ParameterConsumer.html" title="interface in org.apache.logging.log4j.message">ParameterConsumer</a>&lt;S&gt;&nbsp;action,
S&nbsp;state)</code>
<div class="block">Performs the given action for each parameter until all values
have been processed or the action throws an exception.</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/logging/log4j/message/ReusableParameterizedMessage.html#formatTo-java.lang.StringBuilder-">formatTo</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="class or interface in java.lang">StringBuilder</a>&nbsp;builder)</code>
<div class="block">Writes a text representation of this object into the specified <code>StringBuilder</code>, ideally without allocating
temporary objects.</div>
</td>
</tr>
<tr id="i3" 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/message/ReusableParameterizedMessage.html#getFormat--">getFormat</a></span>()</code>
<div class="block">Returns the message pattern.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<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/message/ReusableParameterizedMessage.html#getFormattedMessage--">getFormattedMessage</a></span>()</code>
<div class="block">Returns the formatted message.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>short</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/logging/log4j/message/ReusableParameterizedMessage.html#getParameterCount--">getParameterCount</a></span>()</code>
<div class="block">Returns the number of parameters that was used to initialize this reusable message for the current content.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/logging/log4j/message/ReusableParameterizedMessage.html#getParameters--">getParameters</a></span>()</code>
<div class="block">Returns the message parameters.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/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="../../../../../org/apache/logging/log4j/message/ReusableParameterizedMessage.html#getThrowable--">getThrowable</a></span>()</code>
<div class="block">Returns the Throwable that was given as the last argument, if any.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/logging/log4j/message/Message.html" title="interface in org.apache.logging.log4j.message">Message</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/logging/log4j/message/ReusableParameterizedMessage.html#memento--">memento</a></span>()</code>
<div class="block">Returns an immutable snapshot of the current internal state of this reusable message.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/logging/log4j/message/ReusableParameterizedMessage.html#swapParameters-java.lang.Object:A-">swapParameters</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>[]&nbsp;emptyReplacement)</code>
<div class="block">Returns the parameter array that was used to initialize this reusable message and replaces it with the specified
array.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<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/message/ReusableParameterizedMessage.html#toString--">toString</a></span>()</code>&nbsp;</td>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
<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#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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<h4>ReusableParameterizedMessage</h4>
<pre>public&nbsp;<a href="../../../../../src-html/org/apache/logging/log4j/message/ReusableParameterizedMessage.html#line.52">ReusableParameterizedMessage</a>()</pre>
<div class="block">Creates a reusable message.</div>
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<h4>swapParameters</h4>
<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>[]&nbsp;<a href="../../../../../src-html/org/apache/logging/log4j/message/ReusableParameterizedMessage.html#line.65">swapParameters</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>[]&nbsp;emptyReplacement)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/logging/log4j/message/ReusableMessage.html#swapParameters-java.lang.Object:A-">ReusableMessage</a></code></span></div>
<div class="block">Returns the parameter array that was used to initialize this reusable message and replaces it with the specified
array. The returned parameter array will no longer be modified by this reusable message. The specified array is
now "owned" by this reusable message and can be modified if necessary for the next log event.
</p><p>
ReusableMessages that have no parameters return the specified array.
</p><p>
This method is used by asynchronous loggers to pass the parameter array to a background thread without
allocating new objects.
The actual number of parameters in the returned array can be determined with <a href="../../../../../org/apache/logging/log4j/message/ReusableMessage.html#getParameterCount--"><code>ReusableMessage.getParameterCount()</code></a>.
</p></div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/logging/log4j/message/ReusableMessage.html#swapParameters-java.lang.Object:A-">swapParameters</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/logging/log4j/message/ReusableMessage.html" title="interface in org.apache.logging.log4j.message">ReusableMessage</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>emptyReplacement</code> - the parameter array that can be used for subsequent uses of this reusable message.
This replacement array must have at least 10 elements (the number of varargs supported by the Logger
API).</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the parameter array for the current message content. This may be a vararg array of any length, or it may
be a reusable array of 10 elements used to hold the unrolled vararg parameters.</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../org/apache/logging/log4j/message/ReusableMessage.html#getParameterCount--"><code>ReusableMessage.getParameterCount()</code></a></dd>
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<pre>public&nbsp;short&nbsp;<a href="../../../../../src-html/org/apache/logging/log4j/message/ReusableParameterizedMessage.html#line.107">getParameterCount</a>()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/logging/log4j/message/ReusableMessage.html#getParameterCount--">ReusableMessage</a></code></span></div>
<div class="block">Returns the number of parameters that was used to initialize this reusable message for the current content.
<p>
The parameter array returned by <a href="../../../../../org/apache/logging/log4j/message/ReusableMessage.html#swapParameters-java.lang.Object:A-"><code>ReusableMessage.swapParameters(Object[])</code></a> may be larger than the actual number of
parameters. Callers should use this method to determine how many elements the array contains.
</p></div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/logging/log4j/message/ReusableMessage.html#getParameterCount--">getParameterCount</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/logging/log4j/message/ReusableMessage.html" title="interface in org.apache.logging.log4j.message">ReusableMessage</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the current number of parameters</dd>
</dl>
</li>
</ul>
<a name="forEachParameter-org.apache.logging.log4j.message.ParameterConsumer-java.lang.Object-">
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<h4>forEachParameter</h4>
<pre>public&nbsp;&lt;S&gt;&nbsp;void&nbsp;<a href="../../../../../src-html/org/apache/logging/log4j/message/ReusableParameterizedMessage.html#line.112">forEachParameter</a>(<a href="../../../../../org/apache/logging/log4j/message/ParameterConsumer.html" title="interface in org.apache.logging.log4j.message">ParameterConsumer</a>&lt;S&gt;&nbsp;action,
S&nbsp;state)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/logging/log4j/message/ParameterVisitable.html#forEachParameter-org.apache.logging.log4j.message.ParameterConsumer-S-">ParameterVisitable</a></code></span></div>
<div class="block">Performs the given action for each parameter until all values
have been processed or the action throws an exception.
<p>
The second parameter lets callers pass in a stateful object to be modified with the key-value pairs,
so the TriConsumer implementation itself can be stateless and potentially reusable.
</p></div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/logging/log4j/message/ParameterVisitable.html#forEachParameter-org.apache.logging.log4j.message.ParameterConsumer-S-">forEachParameter</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/logging/log4j/message/ParameterVisitable.html" title="interface in org.apache.logging.log4j.message">ParameterVisitable</a></code></dd>
<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>S</code> - type of the third parameter</dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>action</code> - The action to be performed for each key-value pair in this collection</dd>
<dd><code>state</code> - the object to be passed as the third parameter to each invocation on the
specified ParameterConsumer.</dd>
</dl>
</li>
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<h4>memento</h4>
<pre>public&nbsp;<a href="../../../../../org/apache/logging/log4j/message/Message.html" title="interface in org.apache.logging.log4j.message">Message</a>&nbsp;<a href="../../../../../src-html/org/apache/logging/log4j/message/ReusableParameterizedMessage.html#line.120">memento</a>()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/logging/log4j/message/ReusableMessage.html#memento--">ReusableMessage</a></code></span></div>
<div class="block">Returns an immutable snapshot of the current internal state of this reusable message. The returned snapshot
will not be affected by subsequent modifications of this reusable message.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/logging/log4j/message/ReusableMessage.html#memento--">memento</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/logging/log4j/message/ReusableMessage.html" title="interface in org.apache.logging.log4j.message">ReusableMessage</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>an immutable snapshot of this message</dd>
</dl>
</li>
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<h4>getFormat</h4>
<pre>public&nbsp;<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>&nbsp;<a href="../../../../../src-html/org/apache/logging/log4j/message/ReusableParameterizedMessage.html#line.270">getFormat</a>()</pre>
<div class="block">Returns the message pattern.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/logging/log4j/message/Message.html#getFormat--">getFormat</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/logging/log4j/message/Message.html" title="interface in org.apache.logging.log4j.message">Message</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the message pattern.</dd>
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<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>[]&nbsp;<a href="../../../../../src-html/org/apache/logging/log4j/message/ReusableParameterizedMessage.html#line.279">getParameters</a>()</pre>
<div class="block">Returns the message parameters.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/logging/log4j/message/Message.html#getParameters--">getParameters</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/logging/log4j/message/Message.html" title="interface in org.apache.logging.log4j.message">Message</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the message parameters.</dd>
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<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a>&nbsp;<a href="../../../../../src-html/org/apache/logging/log4j/message/ReusableParameterizedMessage.html#line.293">getThrowable</a>()</pre>
<div class="block">Returns the Throwable that was given as the last argument, if any.
It will not survive serialization. The Throwable exists as part of the message
primarily so that it can be extracted from the end of the list of parameters
and then be added to the LogEvent. As such, the Throwable in the event should
not be used once the LogEvent has been constructed.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/logging/log4j/message/Message.html#getThrowable--">getThrowable</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/logging/log4j/message/Message.html" title="interface in org.apache.logging.log4j.message">Message</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the Throwable, if any.</dd>
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<pre>public&nbsp;<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>&nbsp;<a href="../../../../../src-html/org/apache/logging/log4j/message/ReusableParameterizedMessage.html#line.302">getFormattedMessage</a>()</pre>
<div class="block">Returns the formatted message.</div>
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/logging/log4j/message/Message.html#getFormattedMessage--">getFormattedMessage</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/logging/log4j/message/Message.html" title="interface in org.apache.logging.log4j.message">Message</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the formatted message.</dd>
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<pre>public&nbsp;void&nbsp;<a href="../../../../../src-html/org/apache/logging/log4j/message/ReusableParameterizedMessage.html#line.325">formatTo</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="class or interface in java.lang">StringBuilder</a>&nbsp;builder)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/logging/log4j/util/StringBuilderFormattable.html#formatTo-java.lang.StringBuilder-">StringBuilderFormattable</a></code></span></div>
<div class="block">Writes a text representation of this object into the specified <code>StringBuilder</code>, ideally without allocating
temporary objects.</div>
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<dd><code><a href="../../../../../org/apache/logging/log4j/util/StringBuilderFormattable.html#formatTo-java.lang.StringBuilder-">formatTo</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/logging/log4j/util/StringBuilderFormattable.html" title="interface in org.apache.logging.log4j.util">StringBuilderFormattable</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>builder</code> - the StringBuilder to write into</dd>
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<pre>public&nbsp;<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>&nbsp;<a href="../../../../../src-html/org/apache/logging/log4j/message/ReusableParameterizedMessage.html#line.344">toString</a>()</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><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></code>&nbsp;in class&nbsp;<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></dd>
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<pre>public&nbsp;void&nbsp;<a href="../../../../../src-html/org/apache/logging/log4j/message/ReusableParameterizedMessage.html#line.350">clear</a>()</pre>
<div class="block">Resets the object to a clean state.</div>
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