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<h2 title="Class AbstractFunction" class="title">Class AbstractFunction</h2>
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<li>org.apache.jmeter.functions.AbstractFunction</li>
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<dt>All Implemented Interfaces:</dt>
<dd><a href="../../../../org/apache/jmeter/functions/Function.html" title="interface in org.apache.jmeter.functions">Function</a></dd>
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<dt>Direct Known Subclasses:</dt>
<dd><a href="../../../../org/apache/jmeter/functions/BeanShell.html" title="class in org.apache.jmeter.functions">BeanShell</a>, <a href="../../../../org/apache/jmeter/functions/ChangeCase.html" title="class in org.apache.jmeter.functions">ChangeCase</a>, <a href="../../../../org/apache/jmeter/functions/CharFunction.html" title="class in org.apache.jmeter.functions">CharFunction</a>, <a href="../../../../org/apache/jmeter/functions/CSVRead.html" title="class in org.apache.jmeter.functions">CSVRead</a>, <a href="../../../../org/apache/jmeter/functions/DateTimeConvertFunction.html" title="class in org.apache.jmeter.functions">DateTimeConvertFunction</a>, <a href="../../../../org/apache/jmeter/functions/DigestEncodeFunction.html" title="class in org.apache.jmeter.functions">DigestEncodeFunction</a>, <a href="../../../../org/apache/jmeter/functions/EscapeHtml.html" title="class in org.apache.jmeter.functions">EscapeHtml</a>, <a href="../../../../org/apache/jmeter/functions/EscapeOroRegexpChars.html" title="class in org.apache.jmeter.functions">EscapeOroRegexpChars</a>, <a href="../../../../org/apache/jmeter/functions/EscapeXml.html" title="class in org.apache.jmeter.functions">EscapeXml</a>, <a href="../../../../org/apache/jmeter/functions/EvalFunction.html" title="class in org.apache.jmeter.functions">EvalFunction</a>, <a href="../../../../org/apache/jmeter/functions/EvalVarFunction.html" title="class in org.apache.jmeter.functions">EvalVarFunction</a>, <a href="../../../../org/apache/jmeter/functions/FileToString.html" title="class in org.apache.jmeter.functions">FileToString</a>, <a href="../../../../org/apache/jmeter/functions/Groovy.html" title="class in org.apache.jmeter.functions">Groovy</a>, <a href="../../../../org/apache/jmeter/functions/IntSum.html" title="class in org.apache.jmeter.functions">IntSum</a>, <a href="../../../../org/apache/jmeter/functions/IsPropDefined.html" title="class in org.apache.jmeter.functions">IsPropDefined</a>, <a href="../../../../org/apache/jmeter/functions/IsVarDefined.html" title="class in org.apache.jmeter.functions">IsVarDefined</a>, <a href="../../../../org/apache/jmeter/functions/IterationCounter.html" title="class in org.apache.jmeter.functions">IterationCounter</a>, <a href="../../../../org/apache/jmeter/functions/JavaScript.html" title="class in org.apache.jmeter.functions">JavaScript</a>, <a href="../../../../org/apache/jmeter/functions/Jexl2Function.html" title="class in org.apache.jmeter.functions">Jexl2Function</a>, <a href="../../../../org/apache/jmeter/functions/Jexl3Function.html" title="class in org.apache.jmeter.functions">Jexl3Function</a>, <a href="../../../../org/apache/jmeter/functions/LogFunction.html" title="class in org.apache.jmeter.functions">LogFunction</a>, <a href="../../../../org/apache/jmeter/functions/LogFunction2.html" title="class in org.apache.jmeter.functions">LogFunction2</a>, <a href="../../../../org/apache/jmeter/functions/LongSum.html" title="class in org.apache.jmeter.functions">LongSum</a>, <a href="../../../../org/apache/jmeter/functions/MachineIP.html" title="class in org.apache.jmeter.functions">MachineIP</a>, <a href="../../../../org/apache/jmeter/functions/MachineName.html" title="class in org.apache.jmeter.functions">MachineName</a>, <a href="../../../../org/apache/jmeter/functions/Property.html" title="class in org.apache.jmeter.functions">Property</a>, <a href="../../../../org/apache/jmeter/functions/Property2.html" title="class in org.apache.jmeter.functions">Property2</a>, <a href="../../../../org/apache/jmeter/functions/Random.html" title="class in org.apache.jmeter.functions">Random</a>, <a href="../../../../org/apache/jmeter/functions/RandomDate.html" title="class in org.apache.jmeter.functions">RandomDate</a>, <a href="../../../../org/apache/jmeter/functions/RandomFromMultipleVars.html" title="class in 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href="../../../../org/apache/jmeter/functions/TestPlanName.html" title="class in org.apache.jmeter.functions">TestPlanName</a>, <a href="../../../../org/apache/jmeter/functions/ThreadGroupName.html" title="class in org.apache.jmeter.functions">ThreadGroupName</a>, <a href="../../../../org/apache/jmeter/functions/ThreadNumber.html" title="class in org.apache.jmeter.functions">ThreadNumber</a>, <a href="../../../../org/apache/jmeter/functions/TimeFunction.html" title="class in org.apache.jmeter.functions">TimeFunction</a>, <a href="../../../../org/apache/jmeter/functions/TimeShift.html" title="class in org.apache.jmeter.functions">TimeShift</a>, <a href="../../../../org/apache/jmeter/functions/UnEscape.html" title="class in org.apache.jmeter.functions">UnEscape</a>, <a href="../../../../org/apache/jmeter/functions/UnEscapeHtml.html" title="class in org.apache.jmeter.functions">UnEscapeHtml</a>, <a href="../../../../org/apache/jmeter/functions/UrlDecode.html" title="class in org.apache.jmeter.functions">UrlDecode</a>, <a href="../../../../org/apache/jmeter/functions/UrlEncode.html" title="class in org.apache.jmeter.functions">UrlEncode</a>, <a href="../../../../org/apache/jmeter/functions/Uuid.html" title="class in org.apache.jmeter.functions">Uuid</a>, <a href="../../../../org/apache/jmeter/functions/Variable.html" title="class in org.apache.jmeter.functions">Variable</a>, <a href="../../../../org/apache/jmeter/functions/XPath.html" title="class in org.apache.jmeter.functions">XPath</a></dd>
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<pre>public abstract class <span class="typeNameLabel">AbstractFunction</span>
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/jmeter/functions/Function.html" title="interface in org.apache.jmeter.functions">Function</a></pre>
<div class="block">Provides common methods for all functions</div>
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<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
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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/jmeter/functions/AbstractFunction.html#AbstractFunction--">AbstractFunction</a></span>()</code>&nbsp;</td>
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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="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract 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>
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<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/jmeter/functions/AbstractFunction.html#addVariableValue-java.lang.String-org.apache.jmeter.engine.util.CompoundVariable:A-int-">addVariableValue</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>&nbsp;value,
<a href="../../../../org/apache/jmeter/engine/util/CompoundVariable.html" title="class in org.apache.jmeter.engine.util">CompoundVariable</a>[]&nbsp;values,
int&nbsp;index)</code>
<div class="block">Utility method to store value in a variable</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/jmeter/functions/AbstractFunction.html#checkMinParameterCount-java.util.Collection-int-">checkMinParameterCount</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="../../../../org/apache/jmeter/engine/util/CompoundVariable.html" title="class in org.apache.jmeter.engine.util">CompoundVariable</a>&gt;&nbsp;parameters,
int&nbsp;minimum)</code>
<div class="block">Utility method to check parameter counts.</div>
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<tr id="i2" class="altColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/jmeter/functions/AbstractFunction.html#checkParameterCount-java.util.Collection-int-">checkParameterCount</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="../../../../org/apache/jmeter/engine/util/CompoundVariable.html" title="class in org.apache.jmeter.engine.util">CompoundVariable</a>&gt;&nbsp;parameters,
int&nbsp;count)</code>
<div class="block">Utility method to check parameter counts.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/jmeter/functions/AbstractFunction.html#checkParameterCount-java.util.Collection-int-int-">checkParameterCount</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="../../../../org/apache/jmeter/engine/util/CompoundVariable.html" title="class in org.apache.jmeter.engine.util">CompoundVariable</a>&gt;&nbsp;parameters,
int&nbsp;min,
int&nbsp;max)</code>
<div class="block">Utility method to check parameter counts.</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/jmeter/functions/AbstractFunction.html#execute--">execute</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>abstract <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/jmeter/functions/AbstractFunction.html#execute-org.apache.jmeter.samplers.SampleResult-org.apache.jmeter.samplers.Sampler-">execute</a></span>(<a href="../../../../org/apache/jmeter/samplers/SampleResult.html" title="class in org.apache.jmeter.samplers">SampleResult</a>&nbsp;previousResult,
<a href="../../../../org/apache/jmeter/samplers/Sampler.html" title="interface in org.apache.jmeter.samplers">Sampler</a>&nbsp;currentSampler)</code>
<div class="block"><b>
N.B.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>abstract <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/jmeter/functions/AbstractFunction.html#getReferenceKey--">getReferenceKey</a></span>()</code>
<div class="block">Return the name of your function.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>protected <a href="../../../../org/apache/jmeter/threads/JMeterVariables.html" title="class in org.apache.jmeter.threads">JMeterVariables</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/jmeter/functions/AbstractFunction.html#getVariables--">getVariables</a></span>()</code>
<div class="block">Gives access to the JMeter variables for the current thread.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>abstract void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/jmeter/functions/AbstractFunction.html#setParameters-java.util.Collection-">setParameters</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="../../../../org/apache/jmeter/engine/util/CompoundVariable.html" title="class in org.apache.jmeter.engine.util">CompoundVariable</a>&gt;&nbsp;parameters)</code>
<div class="block">Note: This is always called even if no parameters are provided
(versions of JMeter after 2.3.1)</div>
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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#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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<h3>Methods inherited from interface&nbsp;org.apache.jmeter.functions.<a href="../../../../org/apache/jmeter/functions/Function.html" title="interface in org.apache.jmeter.functions">Function</a></h3>
<code><a href="../../../../org/apache/jmeter/functions/Function.html#getArgumentDesc--">getArgumentDesc</a></code></li>
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<h3>Constructor Detail</h3>
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<h4>AbstractFunction</h4>
<pre>public&nbsp;AbstractFunction()</pre>
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<h3>Method Detail</h3>
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<h4>execute</h4>
<pre>public abstract&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;execute(<a href="../../../../org/apache/jmeter/samplers/SampleResult.html" title="class in org.apache.jmeter.samplers">SampleResult</a>&nbsp;previousResult,
<a href="../../../../org/apache/jmeter/samplers/Sampler.html" title="interface in org.apache.jmeter.samplers">Sampler</a>&nbsp;currentSampler)
throws <a href="../../../../org/apache/jmeter/functions/InvalidVariableException.html" title="class in org.apache.jmeter.functions">InvalidVariableException</a></pre>
<div class="block"><p><b>
N.B. execute() should be synchronized if function is operating with non-thread-safe
objects (e.g. operates with files).
</b></p>
JMeter ensures setParameters() happens-before execute(): setParameters is executed in main thread,
and worker threads are started after that.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../org/apache/jmeter/functions/Function.html#execute-org.apache.jmeter.samplers.SampleResult-org.apache.jmeter.samplers.Sampler-">execute</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../org/apache/jmeter/functions/Function.html" title="interface in org.apache.jmeter.functions">Function</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>previousResult</code> - The previous <a href="../../../../org/apache/jmeter/samplers/SampleResult.html" title="class in org.apache.jmeter.samplers"><code>SampleResult</code></a></dd>
<dd><code>currentSampler</code> - The current <a href="../../../../org/apache/jmeter/samplers/Sampler.html" title="interface in org.apache.jmeter.samplers"><code>Sampler</code></a></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The replacement value, which was generated by the function</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../org/apache/jmeter/functions/InvalidVariableException.html" title="class in org.apache.jmeter.functions">InvalidVariableException</a></code> - - when the variables for the function call can't be evaluated</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../org/apache/jmeter/functions/Function.html#execute-org.apache.jmeter.samplers.SampleResult-org.apache.jmeter.samplers.Sampler-"><code>Function.execute(SampleResult, Sampler)</code></a></dd>
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<h4>execute</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;execute()
throws <a href="../../../../org/apache/jmeter/functions/InvalidVariableException.html" title="class in org.apache.jmeter.functions">InvalidVariableException</a></pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../org/apache/jmeter/functions/InvalidVariableException.html" title="class in org.apache.jmeter.functions">InvalidVariableException</a></code></dd>
</dl>
</li>
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<h4>setParameters</h4>
<pre>public abstract&nbsp;void&nbsp;setParameters(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="../../../../org/apache/jmeter/engine/util/CompoundVariable.html" title="class in org.apache.jmeter.engine.util">CompoundVariable</a>&gt;&nbsp;parameters)
throws <a href="../../../../org/apache/jmeter/functions/InvalidVariableException.html" title="class in org.apache.jmeter.functions">InvalidVariableException</a></pre>
<div class="block">Note: This is always called even if no parameters are provided
(versions of JMeter after 2.3.1)</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../org/apache/jmeter/functions/Function.html#setParameters-java.util.Collection-">setParameters</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../org/apache/jmeter/functions/Function.html" title="interface in org.apache.jmeter.functions">Function</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>parameters</code> - The parameters for the function call</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../org/apache/jmeter/functions/InvalidVariableException.html" title="class in org.apache.jmeter.functions">InvalidVariableException</a></code> - - when the variables for the function call can't be evaluated</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../org/apache/jmeter/functions/Function.html#setParameters-java.util.Collection-"><code>Function.setParameters(Collection)</code></a></dd>
</dl>
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<a name="getReferenceKey--">
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<h4>getReferenceKey</h4>
<pre>public abstract&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;getReferenceKey()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../org/apache/jmeter/functions/Function.html#getReferenceKey--">Function</a></code></span></div>
<div class="block">Return the name of your function. Convention is to prepend "__" to the
name (ie "__regexFunction")</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../org/apache/jmeter/functions/Function.html#getReferenceKey--">getReferenceKey</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../org/apache/jmeter/functions/Function.html" title="interface in org.apache.jmeter.functions">Function</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The name of the function</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../org/apache/jmeter/functions/Function.html#getReferenceKey--"><code>Function.getReferenceKey()</code></a></dd>
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<h4>getVariables</h4>
<pre>protected&nbsp;<a href="../../../../org/apache/jmeter/threads/JMeterVariables.html" title="class in org.apache.jmeter.threads">JMeterVariables</a>&nbsp;getVariables()</pre>
<div class="block">Gives access to the JMeter variables for the current thread.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a pointer to the JMeter variables.</dd>
</dl>
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<h4>checkParameterCount</h4>
<pre>protected&nbsp;void&nbsp;checkParameterCount(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="../../../../org/apache/jmeter/engine/util/CompoundVariable.html" title="class in org.apache.jmeter.engine.util">CompoundVariable</a>&gt;&nbsp;parameters,
int&nbsp;min,
int&nbsp;max)
throws <a href="../../../../org/apache/jmeter/functions/InvalidVariableException.html" title="class in org.apache.jmeter.functions">InvalidVariableException</a></pre>
<div class="block">Utility method to check parameter counts.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>parameters</code> - collection of parameters</dd>
<dd><code>min</code> - minimum number of parameters allowed</dd>
<dd><code>max</code> - maximum number of parameters allowed</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../org/apache/jmeter/functions/InvalidVariableException.html" title="class in org.apache.jmeter.functions">InvalidVariableException</a></code> - if the number of parameters is incorrect</dd>
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<h4>checkParameterCount</h4>
<pre>protected&nbsp;void&nbsp;checkParameterCount(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="../../../../org/apache/jmeter/engine/util/CompoundVariable.html" title="class in org.apache.jmeter.engine.util">CompoundVariable</a>&gt;&nbsp;parameters,
int&nbsp;count)
throws <a href="../../../../org/apache/jmeter/functions/InvalidVariableException.html" title="class in org.apache.jmeter.functions">InvalidVariableException</a></pre>
<div class="block">Utility method to check parameter counts.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>parameters</code> - collection of parameters</dd>
<dd><code>count</code> - number of parameters expected</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../org/apache/jmeter/functions/InvalidVariableException.html" title="class in org.apache.jmeter.functions">InvalidVariableException</a></code> - if the number of parameters is incorrect</dd>
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<h4>checkMinParameterCount</h4>
<pre>protected&nbsp;void&nbsp;checkMinParameterCount(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="../../../../org/apache/jmeter/engine/util/CompoundVariable.html" title="class in org.apache.jmeter.engine.util">CompoundVariable</a>&gt;&nbsp;parameters,
int&nbsp;minimum)
throws <a href="../../../../org/apache/jmeter/functions/InvalidVariableException.html" title="class in org.apache.jmeter.functions">InvalidVariableException</a></pre>
<div class="block">Utility method to check parameter counts.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>parameters</code> - collection of parameters</dd>
<dd><code>minimum</code> - number of parameters expected</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../org/apache/jmeter/functions/InvalidVariableException.html" title="class in org.apache.jmeter.functions">InvalidVariableException</a></code> - if the number of parameters is incorrect</dd>
</dl>
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<h4>addVariableValue</h4>
<pre>protected final&nbsp;void&nbsp;addVariableValue(<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;value,
<a href="../../../../org/apache/jmeter/engine/util/CompoundVariable.html" title="class in org.apache.jmeter.engine.util">CompoundVariable</a>[]&nbsp;values,
int&nbsp;index)</pre>
<div class="block">Utility method to store value in a variable</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>value</code> - value of variable to update</dd>
<dd><code>values</code> - array of <a href="../../../../org/apache/jmeter/engine/util/CompoundVariable.html" title="class in org.apache.jmeter.engine.util"><code>CompoundVariable</code></a> from which variable name
will be extracted</dd>
<dd><code>index</code> - index of variable in values array</dd>
</dl>
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