Like all OsidLists, InstallationPackageList provides a means for accessing InstallationPackage elements sequentially either one at a time or many at a time. Examples:

while (pl.hasNext()) {
     InstallationPackage package = pl.getNextInstallationPackage();
}
                

while (pl.hasNext()) {
     InstallationPackage[] packages = pl.getNextInstallationPackages(pl.available());
}