Bug 416703 Mongodb : Display correctly the Number data type
data/org.eclipse.birt.data.oda.mongodb/src/org/eclipse/birt/data/oda/mongodb/internal/impl/MDbMetaData.java
if( m_nameFragments == null )
                m_nameFragments = splitFieldName( getFullName() );
            return m_nameFragments;
        }
        private void setParentMetaData( FieldMetaData parentMd )
        {
            if( parentMd != null )
                m_parentMd = parentMd;
        }
        
        private FieldMetaData getParentMetaData()
        {
            return m_parentMd;
        }
        private DocumentsMetaData getContainingMetaData()
        {
            if( m_parentMd == null )
                return null;
            return m_parentMd.getChildMetaData();
        }
        /**
         * Indicates whether this is a child field, contained by a parent document.
         */
        public boolean isChildField()
        {
            return m_parentMd != null;
        }
        private void addDataType( Object fieldValue )
        {