operator<<() for VVContact

SourcePro : DB Interface Module User’s Guide : PART V The Tutorials : Inserting Data into a Table : The Program : operator<<() for VVContact

The purpose of this overloaded function is to ease the insertion of a VVContact instance into an RWDBInserter instance. The function combines the shifting of the individual components of a VVContact into a single function.

RWDBInserter&

operator<< (RWDBInserter& aInserter,

const VVContact& aContact) //1

{

aInserter << aContact.name() << aContact.id()

<< aContact.address() << aContact.city()

<< aContact.state() << aContact.zip()

<< aContact.phone(); //2

aInserter.execute(); //3

return aInserter;

}

//1 This line defines the overloaded left shift function for RWDBInserter and VVContact.

//2 This line shifts the individual components of a VVContact instance into an RWDBInserter instance. Each left shift is an invocation of a member function of RWDBInserter. The inserter class overloads the operator<<() for each of the basic C++ types along with several of the Rogue Wave types, such as RWCString.

//3 Shifting values into an inserter does not automatically insert the data into a table. The execute() member function of RWDBInserter actually sends the new data to the database.