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NAME

       zipios::CollectionCollection -

SYNOPSIS

       #include <collcoll.h>

       Inherits zipios::FileCollection.

   Public Member Functions
       CollectionCollection ()
           Constructor.
       CollectionCollection (const CollectionCollection &src)
           Copy constructor.
       const CollectionCollection & operator= (const CollectionCollection &src)
           Copy assignment operator.
       bool addCollection (const FileCollection &collection)
       bool addCollection (FileCollection *collection)
           Adds the collection pointed to by collection.
       virtual void close ()
           Closes the FileCollection.
       virtual ConstEntries entries () const
       virtual ConstEntryPointer getEntry (const string &name, MatchPath matchpath=MATCH) const
       virtual istream * getInputStream (const ConstEntryPointer &entry)
       virtual istream * getInputStream (const string &entry_name, MatchPath matchpath=MATCH)
           Returns a pointer to an opened istream for the specified entry name.
       virtual int size () const
           Returns the number in entries in all collections kept by the CollectionCollection
           object.
       virtual FileCollection * clone () const
           Create a heap allocated clone of the object this method is called for.

   Static Public Member Functions
       static CollectionCollection & inst ()

   Protected Member Functions
       void getEntry (const string &name, ConstEntryPointer &cep, std::vector< FileCollection *
           >::const_iterator &it, MatchPath matchpath=MATCH) const
           A protected getEntry member function, that not only finds an entry that match the
           name, if such an entry exists in the collection, it also returns, which collection it
           was found in.

   Protected Attributes
       vector< FileCollection * > _collections

   Additional Inherited Members

Detailed Description

       CollectionCollection is a FileCollection that consists of an arbitrary number of
       FileCollections. With a CollectionCollection the user can use multiple FileCollections
       transparently, making it easy for a program to keep some of its files in a zip archive and
       others stored in ordinary files. CollectionCollection can be used to create a simple
       virtual filesystem, where all collections are mounted in /. If more than one collection
       contain a file with the same path only the one in the first added collection will be
       accessible.

       Definition at line 26 of file collcoll.h.

Constructor & Destructor Documentation

   zipios::CollectionCollection::CollectionCollection () [explicit]
       Constructor.

       Definition at line 16 of file collcoll.cpp.

   zipios::CollectionCollection::CollectionCollection (const CollectionCollection & src) [inline]
       Copy constructor.

       Definition at line 118 of file collcoll.h.

Member Function Documentation

   bool zipios::CollectionCollection::addCollection (const FileCollection & collection)
       Adds a collection.

       Parameters:
           collection The collection to add.

       Returns:
           true if the collection was added succesfully and the added collection is valid.

       Definition at line 21 of file collcoll.cpp.

   bool zipios::CollectionCollection::addCollection (FileCollection * collection)
       Adds the collection pointed to by collection. The CollectionCollection will call delete on
       the pointer when it is destructed, so the caller should make absolutely sure to only pass
       in a collection created with new and be sure to leave it alone after adding it. If the
       collection is not added false is returned and the caller remains responsible for the
       collection pointed to by collection.

       Parameters:
           collection A pointer to the collection to add.

       Returns:
           true if the collection was added succesfully and the added collection is valid.

       Definition at line 31 of file collcoll.cpp.

   FileCollection * zipios::CollectionCollection::clone () const [virtual]
       Create a heap allocated clone of the object this method is called for. The caller is
       responsible for deallocating the clone when he is done with it.

       Returns:
           A heap allocated copy of the object this method is called for.

       Implements zipios::FileCollection.

       Definition at line 108 of file collcoll.cpp.

   void zipios::CollectionCollection::close () [virtual]
       Closes the FileCollection.

       Implements zipios::FileCollection.

       Definition at line 41 of file collcoll.cpp.

   ConstEntries zipios::CollectionCollection::entries () const [virtual]
       Returns a vector of const pointers to the entries in the FileCollection.

       Returns:
           a ConstEntries containing the entries of the FileCollection.

       Exceptions:
           InvalidStateException Thrown if the collection is invalid.

       Reimplemented from zipios::FileCollection.

       Definition at line 46 of file collcoll.cpp.

   ConstEntryPointer zipios::CollectionCollection::getEntry (const string & name, MatchPath
       matchpath = MATCH) const [virtual]
       Returns a ConstEntryPointer to a FileEntry object for the entry with the specified name.
       To ignore the path part of the filename in search of a match, specify
       FileCollection::IGNORE as the second argument.

       Parameters:
           name A string containing the name of the entry to get.
           matchpath Speficy MATCH, if the path should match as well, specify IGNORE, if the path
           should be ignored.

       Returns:
           A ConstEntryPointer to the found entry. The returned pointer equals zero if no entry
           is found.

       Exceptions:
           InvalidStateException Thrown if the collection is invalid.

       Reimplemented from zipios::FileCollection.

       Definition at line 58 of file collcoll.cpp.

   void zipios::CollectionCollection::getEntry (const string & name, ConstEntryPointer & cep,
       std::vector< FileCollection * >::const_iterator & it, MatchPath matchpath = MATCH) const
       [protected]
       A protected getEntry member function, that not only finds an entry that match the name, if
       such an entry exists in the collection, it also returns, which collection it was found in.

       Definition at line 123 of file collcoll.cpp.

   istream * zipios::CollectionCollection::getInputStream (const ConstEntryPointer & entry)
       [virtual]
       Returns a pointer to an opened istream for the specified FileEntry. It is the callers
       responsibility to delete the stream when he is done with it. Returns 0, if there is no
       such FileEntry in the FileCollection.

       Parameters:
           entry A ConstEntryPointer to the FileEntry to get an istream to.

       Returns:
           an open istream for the specified entry. The istream is allocated on heap and it is
           the users responsibility to delete it when he is done with it.

       Exceptions:
           InvalidStateException Thrown if the collection is invalid.

       Implements zipios::FileCollection.

       Definition at line 72 of file collcoll.cpp.

   istream * zipios::CollectionCollection::getInputStream (const string & entry_name, MatchPath
       matchpath = MATCH) [virtual]
       Returns a pointer to an opened istream for the specified entry name. It is the callers
       responsibility to delete the stream when he is done with it. Returns 0, if there is no
       entry with the specified name in the FileCollection.

       Parameters:
           matchpath Speficy MATCH, if the path should match as well, specify IGNORE, if the path
           should be ignored.

       Returns:
           an open istream for the specified entry. The istream is allocated on heap and it is
           the users responsibility to delete it when he is done with it.

       Exceptions:
           InvalidStateException Thrown if the collection is invalid.

       Implements zipios::FileCollection.

       Definition at line 80 of file collcoll.cpp.

   CollectionCollection & zipios::CollectionCollection::inst () [inline],  [static]
       This static method provides a singleton instance of a CollectionCollection. The instance
       is instantiated the first time the method is called.

       Returns:
           A pointer to a singleton CollectionCollection instance.

       Definition at line 111 of file collcoll.h.

   const CollectionCollection & zipios::CollectionCollection::operator= (const
       CollectionCollection & src) [inline]
       Copy assignment operator.

       Definition at line 129 of file collcoll.h.

   int zipios::CollectionCollection::size () const [virtual]
       Returns the number in entries in all collections kept by the CollectionCollection object.

       Reimplemented from zipios::FileCollection.

       Definition at line 98 of file collcoll.cpp.

Author

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