Hi Guys, is there a way to call an Appian function within my Java Code (Smart Se

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Use tointeger() function in Appian to get the Document ID.
Pass the Long value to your Java Code. Using the Document Id, We get doc path, document etc..
Go though API, forum.appian.com/.../ you'll find couple of document functions, which will do your job.
                                                  
Sample Java Code

long docId;
String docPath=null;
Document document = new Document();
document = this.contentService.download(this.docId[i], ContentConstants.VERSION_CURRENT, Boolean.valueOf(false))[0];                    
String docName=document.getDisplayName();
String docInternalPath=document.getInternalFilename();