public String variableName(HasAlias doc) {
        requireNonNull(doc);
        return namer().javaVariableName(doc.getJavaName());
    }
Returns the alias of the specified document formatted as a java variable.
<p>
Example:
<ul>
     <li>{@code employeesSchema}
     <li>{@code userTable}
     <li>{@code firstname}
</ul>

@param doc  the document to retrieve the name from.
@return     the node name as a variable
generator-parent/generator-translator/src/main/java/com/speedment/generator/translator/TranslatorSupport.java