[ADD #103] added operator[] for WSubject and WDataHadnler.

src/dataHandler/WDataHandler.cpp

@@ -41,6 +41,10 @@ boost::shared_ptr< const WSubject > WDataHandler::getSubject( const unsigned int
     return m_subjects.at( subjectId );
 }
 
+boost::shared_ptr< const WSubject >  WDataHandler::operator[]( size_t subjectId ) const
+{
+    return getSubject( subjectId );
+}
 
 void WDataHandler::addSubject( boost::shared_ptr< WSubject > newSubject )
 {

src/dataHandler/WDataHandler.h

@@ -57,6 +57,12 @@ public:
      */
     boost::shared_ptr< const WSubject > getSubject( const unsigned int subjectId ) const;
 
+    /**
+     * Returns a  to the i'th WSubject. The return type is const since we
+     * want to ensure that each subject cannot modified after retrival.
+     */
+    boost::shared_ptr< const WSubject > operator[]( size_t subjectId ) const;
+
     /**
      * Insert a new WSubject referenced by a pointer.
      */

src/dataHandler/WSubject.cpp

@@ -36,6 +36,11 @@ boost::shared_ptr< const WDataSet > WSubject::getDataSet( const unsigned int dat
     return m_dataSets.at( dataSetId );
 }
 
+boost::shared_ptr< const WDataSet > WSubject::operator[]( const unsigned int dataSetId ) const
+{
+    return getDataSet( dataSetId );
+}
+
 
 void WSubject::addDataSet( boost::shared_ptr< WDataSet > newDataSet )
 {

src/dataHandler/WSubject.h

@@ -46,7 +46,13 @@ public:
      * Get the pointer to the i'th WDataSet. The return type is const since we
      * want to ensure that each DataSet cannot modified after retrival.
      */
-    boost::shared_ptr< const WDataSet > getDataSet( const unsigned int subjectId ) const;
+    boost::shared_ptr< const WDataSet > getDataSet( const unsigned int dataSetId ) const;
+
+    /**
+     * Returns a  to the i'th WSubject. The return type is const since we
+     * want to ensure that each subject cannot modified after retrival.
+     */
+    boost::shared_ptr< const WDataSet > operator[]( const unsigned int dataSetId ) const;
 
     /**
      * Insert a new DataSet referenced by a pointer.