paludis::Selection Class Reference

#include <selection.hh>

Inheritance diagram for paludis::Selection:

Public Member Functions
std::string	as_string () const PALUDIS_ATTRIBUTE((warn_unused_result))
std::shared_ptr< PackageIDSequence >	perform_select (const Environment *const) const PALUDIS_ATTRIBUTE((warn_unused_result))

Protected Member Functions
	Selection (const std::shared_ptr< const SelectionHandler > &)

Basic operations
	Selection (const Selection &)
Selection &	operator= (const Selection &)

Detailed Description

A Selection subclass is passed to Environment::operator[] to obtain a set of PackageID instances with given properties.

Most Selection subclasses take a FilteredGenerator as a constructor parameter that specifies the required properties; the Selection itself is merely responsible for determining the format of the results.

Examples

example_selection.cc.

Constructor & Destructor Documentation

Selection()

paludis::Selection::Selection

(

const Selection &

)

Selection subclasses can be copied to a Selection without destroying information.

Member Function Documentation

as_string()

std::string paludis::Selection::as_string

(

)

const

Return a string representation of our selection query.

References PALUDIS_ATTRIBUTE.

perform_select()

std::shared_ptr< PackageIDSequence > paludis::Selection::perform_select

(

const Environment * const

)

const

For use by Environment, not to be called directly.

References PALUDIS_ATTRIBUTE, and perform_select().

Referenced by perform_select().

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

• /var/tmp/paludis/build/sys-apps-paludis-scm-r1/work/paludis-scm/paludis/selection.hh