zypp::OncePerPoolItem Struct Reference
[Find matching Capabilities., Filters and Functors, Filter functors operating on Capability.]

Functor translating CapAndItem actions into PoolItem actions avoiding multiple invocations for the same PoolItem. More...

#include <CapMatchHelper.h>

List of all members.

Public Types
typedef function< bool(const PoolItem &)>	Action
Public Member Functions
	OncePerPoolItem (const PoolItem &self_r=PoolItem())
	OncePerPoolItem (const Action &action_r, const PoolItem &self_r=PoolItem())
bool	operator() (const CapAndItem &cai_r) const
const std::set< PoolItem > &	collectedItems () const
Private Attributes
Action	_action
PoolItem	_self
shared_ptr< std::set< PoolItem > >	_uset

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Detailed Description

Functor translating CapAndItem actions into PoolItem actions avoiding multiple invocations for the same PoolItem.

Additionally you may omit invocation of action_r for a specific PoolItem.

Even if no _action is given, the PoolItems that would have been processed are collected in a std::set, available via collectedItems.

 bool consume( const CapAndItem & cai_r );
 bool consumePi( const PoolItem & pi_r );

 ResPool  _pool;
 PoolItem _pi;

 // Invoke consume on all PoolItems obsoleted by pi.
 // Once for each matching Capability, thus the same PoolItem
 // might be involved mutiple times.
 forEachPoolItemMatchedBy( _pool, _pi, Dep::OBSOLETES,
                           consume );

 // Invoke consume on all PoolItems obsoleted by pi.
 // Once for each PoolItem, still including _pi in case
 // it provides a match by itself.
 forEachPoolItemMatchedBy( _pool, _pi, Dep::OBSOLETES,
                           OncePerPoolItem( consumePi ) );

 // Invoke consume on all PoolItems obsoleted by pi.
 // Once for each PoolItem, omitting invokation for
 // _pi (in case it obsoletes itself).
 forEachPoolItemMatchedBy( _pool, _pi, Dep::OBSOLETES,
                           OncePerPoolItem( consumePi, _pi ) );

Definition at line 322 of file CapMatchHelper.h.

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Member Typedef Documentation

typedef function<bool(const PoolItem &)> zypp::OncePerPoolItem::Action

Definition at line 325 of file CapMatchHelper.h.

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Constructor & Destructor Documentation

zypp::OncePerPoolItem::OncePerPoolItem (  const PoolItem &  self_r = PoolItem()  )  [inline, explicit]

Definition at line 329 of file CapMatchHelper.h.

zypp::OncePerPoolItem::OncePerPoolItem (  const Action &  action_r, const PoolItem &  self_r = PoolItem() )  [inline]

Definition at line 334 of file CapMatchHelper.h.

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Member Function Documentation

bool zypp::OncePerPoolItem::operator() (  const CapAndItem &  cai_r  )  const [inline]

Definition at line 341 of file CapMatchHelper.h. References _action, _self, _uset, and zypp::CapAndItem::item.

const std::set<PoolItem>& zypp::OncePerPoolItem::collectedItems (   )  const [inline]

Definition at line 354 of file CapMatchHelper.h. References _uset.

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Member Data Documentation

Action zypp::OncePerPoolItem::_action [private]

Definition at line 358 of file CapMatchHelper.h. Referenced by operator()().

PoolItem zypp::OncePerPoolItem::_self [private]

Definition at line 359 of file CapMatchHelper.h. Referenced by operator()().

shared_ptr<std::set<PoolItem> > zypp::OncePerPoolItem::_uset [private]

Definition at line 360 of file CapMatchHelper.h. Referenced by collectedItems(), and operator()().

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The documentation for this struct was generated from the following file:

• zypp/CapMatchHelper.h

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