itle="class or interface in java.lang">Object</a></pre>
<div class="block">The interface to a map between Jakarta Expression Language function names and methods.

 <p>
 A <code>FunctionMapper</code> maps <code>${prefix:name()}</code> style functions to a static method that can execute
 that function.</div>
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<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>Jakarta Server Pages 2.1</dd>
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