zypp::ProblemSolution Class Reference

Class representing one possible solution to one problem found during resolving. More...

#include <ProblemSolution.h>

Inheritance diagram for zypp::ProblemSolution:

List of all members.

Public Member Functions
	ProblemSolution (ResolverProblem_Ptr parent, const std::string &description, const std::string &details)
	Constructor.
	~ProblemSolution ()
	Destructor.
std::string	description () const
	Return a one-line text description of this solution.
std::string	details () const
	Return a (possibly multi-line) detailed description of this solution or an empty string if there are no useful details.
ResolverProblem_Ptr	problem () const
	Return the parent dependency problem.
bool	apply (solver::detail::Resolver &resolver)
	Apply this solution, i.e.
void	addAction (solver::detail::SolutionAction_constPtr action)
	Add an action to the actions list.
Protected Member Functions
void	clear ()
	Clear all data.
Protected Attributes
ResolverProblem_Ptr	_problem
solver::detail::CSolutionActionList	_actions
std::string	_description
std::string	_details
Friends
std::ostream &	operator<< (std::ostream &, const ProblemSolution &solution)
std::ostream &	operator<< (std::ostream &, const ProblemSolutionList &solutionlist)
std::ostream &	operator<< (std::ostream &, const CProblemSolutionList &solutionlist)

---

Detailed Description

Class representing one possible solution to one problem found during resolving.

All problems should have at least 2-3 (mutually exclusive) solutions:

• Undo: Do not perform the offending transaction (do not install the package that had unsatisfied requirements, do not remove the package that would break other packages' requirements)

• Remove referrers: Remove all packages that would break because they depend on the package that is requested to be removed

• Ignore: Inject artificial "provides" for a missing requirement (pretend that requirement is satisfied)

Definition at line 43 of file ProblemSolution.h.

---

Constructor & Destructor Documentation

zypp::ProblemSolution::ProblemSolution (  ResolverProblem_Ptr  parent, const std::string &  description, const std::string &  details )

Constructor.

zypp::ProblemSolution::~ProblemSolution (   )

Destructor. Definition at line 78 of file ProblemSolution.cc.

---

Member Function Documentation

void zypp::ProblemSolution::clear (   )  [protected]

Clear all data. In particular, delete all members of _actions. Definition at line 118 of file ProblemSolution.cc. References _actions.

std::string zypp::ProblemSolution::description (   )  const [inline]

Return a one-line text description of this solution. Definition at line 83 of file ProblemSolution.h. References _description.

std::string zypp::ProblemSolution::details (   )  const [inline]

Return a (possibly multi-line) detailed description of this solution or an empty string if there are no useful details. Definition at line 89 of file ProblemSolution.h. References _details.

ResolverProblem_Ptr zypp::ProblemSolution::problem (   )  const [inline]

Return the parent dependency problem. Definition at line 94 of file ProblemSolution.h. References _problem.

bool zypp::ProblemSolution::apply (  solver::detail::Resolver &  resolver  )

Apply this solution, i.e. execute all of its actions. Returns 'true' on success, 'false' if actions could not be performed. Definition at line 90 of file ProblemSolution.cc. References _actions, and DBG.

void zypp::ProblemSolution::addAction (  solver::detail::SolutionAction_constPtr  action  )

Add an action to the actions list. Definition at line 111 of file ProblemSolution.cc. References _actions. Referenced by zypp::solver::detail::ProblemSolutionIgnoreArchitecture::ProblemSolutionIgnoreArchitecture(), zypp::solver::detail::ProblemSolutionIgnoreConflicts::ProblemSolutionIgnoreConflicts(), zypp::solver::detail::ProblemSolutionIgnoreInstalled::ProblemSolutionIgnoreInstalled(), zypp::solver::detail::ProblemSolutionIgnoreObsoletes::ProblemSolutionIgnoreObsoletes(), zypp::solver::detail::ProblemSolutionIgnoreRequires::ProblemSolutionIgnoreRequires(), zypp::solver::detail::ProblemSolutionInstall::ProblemSolutionInstall(), zypp::solver::detail::ProblemSolutionKeep::ProblemSolutionKeep(), zypp::solver::detail::ProblemSolutionUninstall::ProblemSolutionUninstall(), and zypp::solver::detail::ProblemSolutionUnlock::ProblemSolutionUnlock().

---

Friends And Related Function Documentation

std::ostream& operator<< (  std::ostream &  , const ProblemSolution &  solution )  [friend]

std::ostream& operator<< (  std::ostream &  , const ProblemSolutionList &  solutionlist )  [friend]

std::ostream& operator<< (  std::ostream &  , const CProblemSolutionList &  solutionlist )  [friend]

---

Member Data Documentation

ResolverProblem_Ptr zypp::ProblemSolution::_problem [protected]

Definition at line 56 of file ProblemSolution.h. Referenced by problem().

solver::detail::CSolutionActionList zypp::ProblemSolution::_actions [protected]

Definition at line 57 of file ProblemSolution.h. Referenced by addAction(), apply(), clear(), and zypp::operator<<().

std::string zypp::ProblemSolution::_description [protected]

Definition at line 58 of file ProblemSolution.h. Referenced by description(), zypp::operator<<(), zypp::solver::detail::ProblemSolutionIgnoreArchitecture::ProblemSolutionIgnoreArchitecture(), zypp::solver::detail::ProblemSolutionIgnoreConflicts::ProblemSolutionIgnoreConflicts(), zypp::solver::detail::ProblemSolutionIgnoreInstalled::ProblemSolutionIgnoreInstalled(), zypp::solver::detail::ProblemSolutionIgnoreObsoletes::ProblemSolutionIgnoreObsoletes(), zypp::solver::detail::ProblemSolutionIgnoreRequires::ProblemSolutionIgnoreRequires(), zypp::solver::detail::ProblemSolutionInstall::ProblemSolutionInstall(), zypp::solver::detail::ProblemSolutionKeep::ProblemSolutionKeep(), zypp::solver::detail::ProblemSolutionUninstall::ProblemSolutionUninstall(), and zypp::solver::detail::ProblemSolutionUnlock::ProblemSolutionUnlock().

std::string zypp::ProblemSolution::_details [protected]

Definition at line 59 of file ProblemSolution.h. Referenced by details(), zypp::operator<<(), zypp::solver::detail::ProblemSolutionIgnoreArchitecture::ProblemSolutionIgnoreArchitecture(), zypp::solver::detail::ProblemSolutionInstall::ProblemSolutionInstall(), zypp::solver::detail::ProblemSolutionKeep::ProblemSolutionKeep(), and zypp::solver::detail::ProblemSolutionUninstall::ProblemSolutionUninstall().

---

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

• zypp/ProblemSolution.h
• zypp/ProblemSolution.cc

---