librpmDb::db_const_iterator Class Reference

Subclass to retrieve database content. More...

#include <librpmDb.h>

List of all members.

Public Member Functions
	db_const_iterator (constlibrpmDbPtr dbptr_r=0)
	~db_const_iterator ()
PMError	dbError () const
void	operator++ ()
unsigned	dbHdrNum () const
const constRpmHeaderPtr &	operator * () const
const constRpmHeaderPtr &	operator-> () const
bool	findAll ()
bool	findByFile (const std::string &file_r)
bool	findByProvides (const std::string &tag_r)
bool	findByRequiredBy (const std::string &tag_r)
bool	findByConflicts (const std::string &tag_r)
bool	findByName (const PkgName &name_r)
bool	findPackage (const PkgName &name_r)
bool	findPackage (const PkgName &name_r, const PkgEdition &ed_r)
bool	findPackage (const PkgNameEd &which_r)
bool	findPackage (const constPMPackagePtr &which_r)
Private Member Functions
db_const_iterator &	operator= (const db_const_iterator &)
	db_const_iterator (const db_const_iterator &)
Private Attributes
D &	_d
Friends
class	librpmDb
std::ostream &	operator<< (std::ostream &str, const db_const_iterator &obj)
Classes
class	D

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Detailed Description

Subclass to retrieve database content.

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Constructor & Destructor Documentation

librpmDb::db_const_iterator::db_const_iterator (  const db_const_iterator &   )  [private]

librpmDb::db_const_iterator::db_const_iterator (  constlibrpmDbPtr  dbptr_r = 0  )

Constructor. Iterator is initialized to findAll. The default form accesses librpmDb's default database. Explicitly providing a database handle should not be neccesary, except for testing.

librpmDb::db_const_iterator::~db_const_iterator (   )

Destructor.

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Member Function Documentation

PMError librpmDb::db_const_iterator::dbError (   )  const

Return any database error. NOTE: If the database gets blocked (see dbRelease) dbError will immediately report this, but an already running iteration will proceed to its end. Then the database is dropped.

unsigned librpmDb::db_const_iterator::dbHdrNum (   )  const

Returns the current headers index in database, 0 if no header.

bool librpmDb::db_const_iterator::findAll (   )

Reset to iterate all packages. Returns true if iterator contains at least one entry. NOTE: No entry (false) migt be returned due to a meanwhile blocked database (see dbRelease). Use dbError to check this.

bool librpmDb::db_const_iterator::findByConflicts (  const std::string &  tag_r  )

Reset to iterate all packages that conflict with a certain tag.

bool librpmDb::db_const_iterator::findByFile (  const std::string &  file_r  )

Reset to iterate all packages that own a certain file.

bool librpmDb::db_const_iterator::findByName (  const PkgName &  name_r  )

Reset to iterate all packages with a certain name. NOTE: Multiple entries for one package installed in different versions are possible but not desired. Usually you'll want to use findPackage instead. findByName is needed to retrieve pseudo packages like 'gpg-pubkey', which in fact exist in multiple instances.

bool librpmDb::db_const_iterator::findByProvides (  const std::string &  tag_r  )

Reset to iterate all packages that provide a certain tag.

bool librpmDb::db_const_iterator::findByRequiredBy (  const std::string &  tag_r  )

Reset to iterate all packages that require a certain tag.

bool librpmDb::db_const_iterator::findPackage (  const constPMPackagePtr &  which_r  )

Abbr. for findPackage( which_r->name(), which_r->edition() );

bool librpmDb::db_const_iterator::findPackage (  const PkgNameEd &  which_r  )  [inline]

Abbr. for findPackage( which_r.name, which_r.edition );

bool librpmDb::db_const_iterator::findPackage (  const PkgName &  name_r, const PkgEdition &  ed_r )

Find package by name and edition. Commonly used by PMRpmPackageDataProvider.

bool librpmDb::db_const_iterator::findPackage (  const PkgName &  name_r  )

Find package by name. Multiple entries for one package installed in different versions are possible but not desired. If so, the last package installed is returned.

const constRpmHeaderPtr & librpmDb::db_const_iterator::operator * (   )  const

Returns the current constRpmHeaderPtr or NULL, if no more entries available.

void librpmDb::db_const_iterator::operator++ (   )

Advance to next constRpmHeaderPtr.

const constRpmHeaderPtr& librpmDb::db_const_iterator::operator-> (   )  const [inline]

Forwards to the current constRpmHeaderPtr.

db_const_iterator& librpmDb::db_const_iterator::operator= (  const db_const_iterator &   )  [private]

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Friends And Related Function Documentation

friend class librpmDb [friend]

std::ostream& operator<< (  std::ostream &  str, const db_const_iterator &  obj )  [friend]

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Member Data Documentation

D& librpmDb::db_const_iterator::_d [private]

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

• librpmDb.h
• librpmDb.cc

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