Chapter 15. Db_map_base

Chapter 15. Db_map_base_iterator
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Chapter 15. Db_map_base_iterator

Member	Description
db_map_base_iterator	Copy constructor.
~db_map_base_iterator	Destructor.
operator++	Pre-increment.
operator--	Pre-decrement.
operator==	Equal comparison operator.
operator!=	Unequal comparison operator.
operator *	Dereference operator.
operator->	Arrow operator.
refresh	Refresh iterator cached value.
close_cursor	Close underlying Berkeley DB cursor of this iterator.
move_to	Iterator movement function.
set_bulk_buffer	Modify bulk buffer size.
get_bulk_bufsize	Get bulk retrieval buffer size in bytes.
operator=	Assignment operator.

db_map_base_iterator(const self &vi)

Copy constructor.

The other iterator of the same type to initialize this.

db_map_base_iterator(const base &vi)

Base copy constructor.

Initialize from a base class iterator.

db_map_base_iterator(db_container *powner, u_int32_t b_bulk_retrieval=0,
    bool rmw=false, bool directdbget=true,
    bool readonly=false)

Constructor.

The bulk read buffer size. 0 means bulk read disabled.

Whether do direct database get rather than using key/data values cached in the iterator whenever read.

Whether open a read only cursor. Only effective when using Berkeley DB Concurrent Data Store.

The container which creates this iterator.

Whether set DB_RMW flag in underlying cursor.

db_map_base_iterator()

Default constructor, dose not create the cursor for now.

Do not create iterators directly using these constructors, but call db_map::begin or db_multimap_begin to get instances of this class.

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Chapter 14. Iterator Classes for db_map and db_multimap	Home	~db_map_base_iterator