SOLUTION TO SSC201's ASSIGNMENT - OAU
Private Data Source
Defines and identifies a data-source object as a data member of a class, and optionally specifies an access mode (PRIVATE or PROTECTED) and scope (instance or STATIC) for that data member. You cannot specify these options when defining a data-source as a data element of a method (including constructors, destructors, and property accessors) or a procedure.
Note: The specified options are applicable only when defining a data member for a class in a class definition (.cls) file. The PRIVATE/PROTECTED modifier and the STATIC modifier can appear in either order, e.g., DEFINE STATIC PRIVATE DATA-SOURCE myDataSource... is valid syntax. Note also that you cannot shadow (override) the definition of a given data-source data member in a class hierarchy.
PRIVATE data-source data members can be accessed by the defining class. An instance can access a private data-source data member of another instance if both instances are of the same class.
PROTECTED data-source data members can be accessed by the defining class and any of its derived classes. An instance can access the protected data-source data member of a second instance of a class that is at the same level or higher in the class hierarchy. The default access mode is PRIVATE.
Private information providers offer a growing array of data for recycling industry researchers. Company specific data allows the researcher to spot trends and changes in the industry at the “ground level” long before they would be evidenced in aggregate government or industry reports.
Database providers collect new information daily on entrepreneurial recycling companies that have started up and listed their firm in the local yellow pages under “Recycling Center” or been evaluated for a credit report. Since much of the growth in the recycling industry is with these entrepreneurial, private companies, a national study would be remiss not to take advantage of data that is increasingly available in inexpensive, easily accessible CD-ROM and electronic products. However, these company-specific sources should not be the only source of data for such a study. Government and industrial reports can provide revealing aggregate data that is not available on a company specific basis.
Information on publicly traded companies is much more detailed than is available on private firms and can allow for more detailed analysis.
Don't be stingy with information/material, kindly RE-SHARE.
Drop your comments below.
