{{tag>Programmers_Reference Methods IFunctionLibrary_Interface}}

======getTypeClass (String, Collection)======

**Interface:** [[3500:0500:0510|IFunctionLibrary]]
<code java>public Class getTypeClass (String functionName, Collection parameters) </code>

This method must return the class of the object that is returned when the function is calculated – see ''[[ref:p_m:calculate|calculate]]'' method.

===== Parameters =====
|''functionName''|the name of the function in the library the return type of which is required|
|''parameters''|the parameters of the function specified as a collection of the ''IArithmeticNode'' objects. |

=====Returns=====
The class of the object that is returned by the ''[[ref:p_m:calculate|calculate]]'' method for the specified function.