zypp::sat::WhatProvides Class Reference

Container of Solvable providing a Capability (read only). More...

#include <WhatProvides.h>

Inheritance diagram for zypp::sat::WhatProvides:

List of all members.

Classes
class	Impl
	WhatProvides implementation date. More...
Public Types
typedef Solvable	value_type
typedef unsigned	size_type
typedef detail::WhatProvidesIterator	const_iterator
Public Member Functions
	WhatProvides ()
	Default ctor.
	WhatProvides (Capability cap_r)
	Ctor from Capability.
	WhatProvides (Capabilities caps_r)
	Ctor collecting all providers of capabilities in caps_r.
	WhatProvides (const CapabilitySet &caps_r)
	Ctor collecting all providers of capabilities in caps_r.
bool	empty () const
	Whether the container is empty.
size_type	size () const
	Number of solvables inside.
const_iterator	begin () const
	Iterator pointing to the first Solvable.
const_iterator	end () const
	Iterator pointing behind the last Solvable.
Private Attributes
RW_pointer< Impl >	_pimpl
Related Functions
(Note that these are not member functions.)
std::ostream &	operator<< (std::ostream &str, const WhatProvides &obj)

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Detailed Description

Container of Solvable providing a Capability (read only).

 Capability cap("amarok < 1.13");

 WhatProvides q( cap );
 Solvable firstMatch;

 if ( ! q.empty() )
 {
   cout << "Found " << q.size() << " matches for " << cap << ":" << endl;
   firstMatch = *q.begin();

   for_( it, q.begin(), q.end() )
     cout << *it << endl;
 }

 if ( firstMatch )
 {
   WhatProvides req( firstMatch.requires() );
   if ( ! req.empty() )
   {
      cout << "Found " << req.size() << " items providing requirements of " << firstMatch << ":" << endl;
   }
 }

Note:

Note that there are capabilities which are not provided by any Solvable, but are system properties. For example:

   rpmlib(PayloadIsBzip2) <= 3.0.5-1

In that case a Solvable::noSolvable is returned, which has isSystem set true, although there should never be a Solvable::noSolvable returned with isSystem set false. If so, please file a bugreport.

 WhatProvides q( Capability("rpmlib(PayloadIsBzip2) <= 3.0.5-1") );
 for_( it, q.begin(), q.end() )
 {
   if ( *it )
     cout << "Capability is provided by package " << *it << endl;
   else if ( it->isSystem() )
     cout << "Capability is a system property" << endl;
   else
     ; // never reaching this \c else
 }

Definition at line 87 of file WhatProvides.h.

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Member Typedef Documentation

typedef Solvable zypp::sat::WhatProvides::value_type

Definition at line 91 of file WhatProvides.h.

typedef unsigned zypp::sat::WhatProvides::size_type

Reimplemented from zypp::sat::SolvIterMixin< WhatProvides, detail::WhatProvidesIterator >.

Definition at line 92 of file WhatProvides.h.

typedef detail::WhatProvidesIterator zypp::sat::WhatProvides::const_iterator

Definition at line 118 of file WhatProvides.h.

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Constructor & Destructor Documentation

zypp::sat::WhatProvides::WhatProvides

(

)

Default ctor.

Definition at line 94 of file WhatProvides.cc.

zypp::sat::WhatProvides::WhatProvides

(

Capability

cap_r

)

[explicit]

Ctor from Capability.

Definition at line 97 of file WhatProvides.cc.

zypp::sat::WhatProvides::WhatProvides

(

Capabilities

caps_r

)

[explicit]

Ctor collecting all providers of capabilities in caps_r.

Definition at line 107 of file WhatProvides.cc.

zypp::sat::WhatProvides::WhatProvides

(

const CapabilitySet &

caps_r

)

[explicit]

Ctor collecting all providers of capabilities in caps_r.

Definition at line 118 of file WhatProvides.cc.

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Member Function Documentation

bool zypp::sat::WhatProvides::empty

(

)

const

Whether the container is empty.

Reimplemented from zypp::sat::SolvIterMixin< WhatProvides, detail::WhatProvidesIterator >.

Definition at line 129 of file WhatProvides.cc.

WhatProvides::size_type zypp::sat::WhatProvides::size

(

)

const

Number of solvables inside.

Reimplemented from zypp::sat::SolvIterMixin< WhatProvides, detail::WhatProvidesIterator >.

Definition at line 134 of file WhatProvides.cc.

WhatProvides::const_iterator zypp::sat::WhatProvides::begin

(

)

const

Iterator pointing to the first Solvable.

Definition at line 145 of file WhatProvides.cc.

WhatProvides::const_iterator zypp::sat::WhatProvides::end

(

)

const [inline]

Iterator pointing behind the last Solvable.

Definition at line 226 of file WhatProvides.h.

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Friends And Related Function Documentation

std::ostream & operator<<	(	std::ostream &	str,
		const WhatProvides &	obj
	)		[related]

Stream output

Definition at line 162 of file WhatProvides.cc.

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Member Data Documentation

RW_pointer<Impl> zypp::sat::WhatProvides::_pimpl [private]

Definition at line 127 of file WhatProvides.h.

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The documentation for this class was generated from the following files:

• zypp/sat/WhatProvides.h
• zypp/sat/WhatProvides.cc