Fixed missing annotation

Author: Roman Khassraf

Diff for: src/main/java/at/ac/tuwien/infosys/aic13/sentiment/impl/TwitterSentimentAnalyzerImpl.java

@@ -32,7 +32,7 @@ public class TwitterSentimentAnalyzerImpl implements TwitterSentimentAnalyzer {
 
     @Override
     @DestructCloudObject
-    public PublicSentimentQueryResult analyze(PublicSentimentQuery sentimentQuery) {
+    public PublicSentimentQueryResult analyze(@ByValueParameter PublicSentimentQuery sentimentQuery) {
         logger.debug("Analyzing query.");
 
         PublicSentimentQueryResult result = new PublicSentimentQueryResult();