{{tag>Programmers_Reference Methods IDocumentDataSource_Interface}}

======getExpressionValueForCalcs (String)======

**Interface:** [[3500:0600:0640|IDocumentDataSource]]
<code java>public Object getExpressionValueForCalcs (String expression) 
throws Exception</code>

This method is very similar to the [[ref:p_m:getexpressionvalue|getExpressionValue]] method. The only difference is that the resulting value is not converted into any presentation format.

=====Parameters=====
|''expression''|the text of the expression. This is the text that is contained inside a tag (not including tag symbols)|

=====Returns===== 
The value of the expression  - possible types of the Java object are presented in the table of the correspondence between attribute and Java types in [[3500:appendix_a|Appendix A]].