Comparing Objectivity and Versant: Population

// Get a handle on the container in the first database

ooHandle(Collection) db1Cont = new("DB1_CONT",1,NPAGES,0,dbHandle1) Collection("Stars1");

// and a handle on the container in the second

ooHandle(Collection) db2Cont = new("DB2_CONT",1,NPAGES,0,dbHandle2) Collection("Stars2");

cout << "Generating " << NSTARS << " stars " << endl;

time(&start);

for (i=0;i<i++) {

x = drand48();

y = drand48();

sigma = 0.1*drand48();

star = new(db1Cont) Star(x,y,sigma,i);

x = drand48();

y = drand48();

sigma = 0.1*drand48();

star = new(db2Cont) Star(x,y,sigma,i);

}

time(&finish);

// Generate NSTARS stars in the first database,

cout << "Generating " << NSTARS << " stars " << endl;

time(&start);

for (i=0;i<i++) {

x = drand48();

y = drand48();

sigma = 0.1*drand48();

Star *star = O_NEW_PERSISTENT(Star) (x,y,sigma,i);

}

// change to the second database

::dom->_default_db("starsdb2");

for (i=0;i<i++) {

x = drand48();

y = drand48();

sigma = 0.1*drand48();

Star *star = O_NEW_PERSISTENT(Star) (x,y,sigma,i);

}

time(&finish);

• Would be better to generate stars in both databases in the same loop, but not clear how this is done ...

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