zypp::ProblemSolution Class Reference

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

#include <ProblemSolution.h>

Inheritance diagram for zypp::ProblemSolution:

[legend]

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.
solver::detail::CSolutionActionList	actions ()
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)

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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 42 of file ProblemSolution.h.

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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.

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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 82 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 88 of file ProblemSolution.h.

References _details.

ResolverProblem_Ptr zypp::ProblemSolution::problem

(

)

const [inline]

Return the parent dependency problem.

Definition at line 93 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::ProblemSolutionCombi::addSingleAction(), and zypp::solver::detail::ProblemSolutionIgnore::ProblemSolutionIgnore().

solver::detail::CSolutionActionList zypp::ProblemSolution::actions

(

)

[inline]

Definition at line 109 of file ProblemSolution.h.

References _actions.

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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]

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Member Data Documentation

ResolverProblem_Ptr zypp::ProblemSolution::_problem [protected]

Definition at line 55 of file ProblemSolution.h.

Referenced by problem().

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

Definition at line 56 of file ProblemSolution.h.

Referenced by actions(), addAction(), apply(), clear(), and zypp::operator<<().

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

Definition at line 57 of file ProblemSolution.h.

Referenced by zypp::solver::detail::ProblemSolutionCombi::addDescription(), zypp::solver::detail::ProblemSolutionCombi::addFrontDescription(), description(), zypp::operator<<(), zypp::solver::detail::ProblemSolutionCombi::ProblemSolutionCombi(), and zypp::solver::detail::ProblemSolutionIgnore::ProblemSolutionIgnore().

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

Definition at line 58 of file ProblemSolution.h.

Referenced by zypp::solver::detail::ProblemSolutionCombi::addDescription(), zypp::solver::detail::ProblemSolutionCombi::addFrontDescription(), details(), zypp::operator<<(), and zypp::solver::detail::ProblemSolutionCombi::ProblemSolutionCombi().

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

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