Mailinglist Archive: zypp-devel (148 mails)

[Michael Andres <ma@xxxxxxx>]

On Tue, Jan 29, Katarina Machalkova wrote:

> i) returning an iterator over all available languages 

      Basic interface is in class ResPool

      const LocaleSet & ResPool::getAvailableLocales() const;


> ii) for selected language, returning an it. over all its related packages ?

      See class sat::LocaleSupport

Example:

  const LocaleSet & avlocales( ResPool::instance().getAvailableLocales() );
  
  for_( it, avlocales.begin(), avlocales.end() )
  {
    sat::LocaleSupport myLocale( *it );
    
    if ( ! myLocale.isRequested() )
    {
      MIL << "Will enable support for locale '" << myLocale.locale() << "'." << 
endl;
      myLocale.setRequested( true );
    }
     
    MIL << "Packages supporting locale '" << myLocale.locale() << "':" << endl;
    for_( it, myLocale.begin(), myLocale.end() )
    {
      // iterate over sat::Solvables:
      // MIL << "  " << *it << endl;

      // or get the PoolItems:
      PoolItem pi(*it);
      MIL << "  " << pi << endl;
    }
  }




Is it ok for the UIs to construct the PoolItem (ASAP as well 
the Selectable) from the sat::Solvable (inside the loop)?

Or would you prefer to have a transform iterator like:


    for_( it, poolItemIterator(myLocale.begin()), 
              poolItemIterator(myLocale.end()) )
    {
      // *it now is a PoolItem
    }


    for_( it, selectableIterator(myLocale.begin()), 
              selectableIterator(myLocale.end()) )
    {
      // *it now is a ui::Selectable
    }

A selectableIterator would also visit each Selectable only once, 
even if multiple PoolItems refer to it.


-- 

cu,
    Michael Andres

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