WvOnDiskHash< K, D, Backend > Class Template Reference

#include <wvondiskhash.h>

Inheritance diagram for WvOnDiskHash< K, D, Backend >:

[legend]List of all members.

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Detailed Description

template<class K, class D, class Backend = DefaultHash>
class WvOnDiskHash< K, D, Backend >

This hashtable is different from normal WvStreams hashtables in that it stores the data on disk.

This affects memory management for objects stored in it.

For find and operator[], the returned object is only guaranteed to be around until the next find() (or next(), for iterators). Remember that you may not be the only person to do a next() or find() on this database.

Public Member Functions
	WvOnDiskHash (WvStringParm dbfile=WvString::null, bool persist=true)
void	add (const K &key, const D &data, bool replace=false)
void	remove (const K &key)
D &	find (const K &key)
D &	operator[] (const K &key)
bool	exists (const K &key)
size_t	count ()
bool	isempty ()
D &	first ()
Static Public Member Functions
template<typename T>
static T	undatumize (datum &data)
Protected Attributes
D *	saveddata
Classes
class	datumize
class	Iter

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

• wvondiskhash.h

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