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<a href="javascript:SubmitFeedback('','Berkeley DB .NET API Documentation','','','','%0\dYour%20feedback%20is%20used%20to%20improve%20the%20documentation%20and%20the%20product.%20Your%20e-mail%20address%20will%20not%20be%20used%20for%20any%20other%20purpose%20and%20is%20disposed%20of%20after%20the%20issue%20you%20report%20is%20resolved.%20%20While%20working%20to%20resolve%20the%20issue%20that%20you%20report,%20you%20may%20be%20contacted%20via%20e-mail%20to%20get%20further%20details%20or%20clarification%20on%20the%20feedback%20you%20sent.%20After%20the%20issue%20you%20report%20has%20been%20addressed,%20you%20may%20receive%20an%20e-mail%20to%20let%20you%20know%20that%20your%20feedback%20has%20been%20addressed.%0\A%0\d','Customer%20Feedback');">
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</td></tr></table><table id="gradientTable"><tr><td class="nsrBottom" background="../icons/gradient.gif" /></tr></table></div><div id="mainSection"><div id="mainBody"><div id="allHistory" class="saveHistory" onsave="saveAll()" onload="loadAll()" /><span style="color: DarkGray"> </span><p>The <a href="T_BerkeleyDB_HashDatabaseConfig.htm">HashDatabaseConfig</a> type exposes the following members.</p><h1 class="heading"><span onclick="ExpandCollapse(fieldTableToggle)" style="cursor:default;" onkeypress="ExpandCollapse_CheckKey(fieldTableToggle, event)" tabindex="0"><img id="fieldTableToggle" class="toggle" name="toggleSwitch" src="../icons/collapse_all.gif" />Fields</span></h1><div id="fieldTableSection" class="section" name="collapseableSection" style=""><table id="memberList" class="members" frame="lhs" cellpadding="2"><col width="10%" /><tr><th class="iconColumn">
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</th><th class="nameColumn">Name</th><th class="descriptionColumn">Description</th></tr><tr data="public;inherited;notNetfw;"><td><img src="../icons/pubfield.gif" title="Public field" /></td><td><a href="F_BerkeleyDB_DatabaseConfig_AutoCommit.htm">AutoCommit</a></td><td><div class="summary">
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Enclose the open call within a transaction. If the call succeeds,
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the open operation is recoverable and all subsequent database
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modification operations based on this handle will be transactionally
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protected. If the call fails, no database has been created.
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</div> (Inherited from <a href="T_BerkeleyDB_DatabaseConfig.htm">DatabaseConfig</a>.)</td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubfield.gif" title="Public field" /></td><td><a href="F_BerkeleyDB_HashDatabaseConfig_BlobDir.htm">BlobDir</a></td><td><div class="summary">
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Deprecated. Replaced by ExternalFileDir.
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</div></td></tr><tr data="public;inherited;notNetfw;"><td><img src="../icons/pubfield.gif" title="Public field" /></td><td><a href="F_BerkeleyDB_DatabaseConfig_ByteOrder.htm">ByteOrder</a></td><td><div class="summary">
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The byte order for integers in the stored database metadata. The
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host byte order of the machine where the Berkeley DB library was
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compiled is the default value.
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</div> (Inherited from <a href="T_BerkeleyDB_DatabaseConfig.htm">DatabaseConfig</a>.)</td></tr><tr data="public;inherited;notNetfw;"><td><img src="../icons/pubfield.gif" title="Public field" /></td><td><a href="F_BerkeleyDB_DatabaseConfig_CacheSize.htm">CacheSize</a></td><td><div class="summary">
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The size of the shared memory buffer pool (the cache).
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</div> (Inherited from <a href="T_BerkeleyDB_DatabaseConfig.htm">DatabaseConfig</a>.)</td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubfield.gif" title="Public field" /></td><td><a href="F_BerkeleyDB_HashDatabaseConfig_Creation.htm">Creation</a></td><td><div class="summary">
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The policy for how to handle database creation.
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</div></td></tr><tr data="public;inherited;notNetfw;"><td><img src="../icons/pubfield.gif" title="Public field" /></td><td><a href="F_BerkeleyDB_DatabaseConfig_DoChecksum.htm">DoChecksum</a></td><td><div class="summary">
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If true, do checksum verification of pages read into the cache from
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the backing filestore.
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</div> (Inherited from <a href="T_BerkeleyDB_DatabaseConfig.htm">DatabaseConfig</a>.)</td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubfield.gif" title="Public field" /></td><td><a href="F_BerkeleyDB_HashDatabaseConfig_DuplicateCompare.htm">DuplicateCompare</a></td><td><div class="summary">
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The duplicate data item comparison function.
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</div></td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubfield.gif" title="Public field" /></td><td><a href="F_BerkeleyDB_HashDatabaseConfig_Duplicates.htm">Duplicates</a></td><td><div class="summary">
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Policy for duplicate data items in the database. Allows a key/data pair
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to be inserted into the database even if the key already exists.
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</div></td></tr><tr data="public;inherited;notNetfw;"><td><img src="../icons/pubfield.gif" title="Public field" /></td><td><a href="F_BerkeleyDB_DatabaseConfig_Env.htm">Env</a></td><td><div class="summary">
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The Berkeley DB environment within which to create a database. If
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null, the database is created stand-alone; it is not
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part of any Berkeley DB environment.
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</div> (Inherited from <a href="T_BerkeleyDB_DatabaseConfig.htm">DatabaseConfig</a>.)</td></tr><tr data="public;inherited;notNetfw;"><td><img src="../icons/pubfield.gif" title="Public field" /></td><td><a href="F_BerkeleyDB_DatabaseConfig_ErrorFeedback.htm">ErrorFeedback</a></td><td><div class="summary">
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The mechanism for reporting error messages to the application.
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</div> (Inherited from <a href="T_BerkeleyDB_DatabaseConfig.htm">DatabaseConfig</a>.)</td></tr><tr data="public;inherited;notNetfw;"><td><img src="../icons/pubfield.gif" title="Public field" /></td><td><a href="F_BerkeleyDB_DatabaseConfig_ErrorPrefix.htm">ErrorPrefix</a></td><td><div class="summary">
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The prefix string that appears before error messages issued by
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Berkeley DB.
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</div> (Inherited from <a href="T_BerkeleyDB_DatabaseConfig.htm">DatabaseConfig</a>.)</td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubfield.gif" title="Public field" /></td><td><a href="F_BerkeleyDB_HashDatabaseConfig_ExternalFileDir.htm">ExternalFileDir</a></td><td><div class="summary">
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The path of the directory where external files are stored.
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<p>
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If the database is opened within <a href="T_BerkeleyDB_DatabaseEnvironment.htm">DatabaseEnvironment</a>,
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this path setting is ignored during
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<a href="M_BerkeleyDB_HashDatabase_Open.htm">Open(String, HashDatabaseConfig)</a>. Use
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<a href="P_BerkeleyDB_HashDatabase_ExternalFileDir.htm">ExternalFileDir</a> to identify the current
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storage location of external files after opening the database.
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</p></div></td></tr><tr data="public;inherited;notNetfw;"><td><img src="../icons/pubfield.gif" title="Public field" /></td><td><a href="F_BerkeleyDB_DatabaseConfig_Feedback.htm">Feedback</a></td><td><div class="summary">
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</div> (Inherited from <a href="T_BerkeleyDB_DatabaseConfig.htm">DatabaseConfig</a>.)</td></tr><tr data="public;inherited;notNetfw;"><td><img src="../icons/pubfield.gif" title="Public field" /></td><td><a href="F_BerkeleyDB_DatabaseConfig_FreeThreaded.htm">FreeThreaded</a></td><td><div class="summary">
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Causes the database object to be free-threaded; that is, concurrently
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usable by multiple threads in the address space.
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</div> (Inherited from <a href="T_BerkeleyDB_DatabaseConfig.htm">DatabaseConfig</a>.)</td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubfield.gif" title="Public field" /></td><td><a href="F_BerkeleyDB_HashDatabaseConfig_HashComparison.htm">HashComparison</a></td><td><div class="summary">
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The Hash key comparison function.
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</div></td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubfield.gif" title="Public field" /></td><td><a href="F_BerkeleyDB_HashDatabaseConfig_HashFunction.htm">HashFunction</a></td><td><div class="summary">
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A user-defined hash function; if no hash function is specified, a
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default hash function is used.
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</div></td></tr><tr data="public;inherited;notNetfw;"><td><img src="../icons/pubfield.gif" title="Public field" /></td><td><a href="F_BerkeleyDB_DatabaseConfig_MessagePrefix.htm">MessagePrefix</a></td><td><div class="summary">
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The prefix string that appears before informational messages issued
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by Berkeley DB.
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</div> (Inherited from <a href="T_BerkeleyDB_DatabaseConfig.htm">DatabaseConfig</a>.)</td></tr><tr data="public;inherited;notNetfw;"><td><img src="../icons/pubfield.gif" title="Public field" /></td><td><a href="F_BerkeleyDB_DatabaseConfig_NoMMap.htm">NoMMap</a></td><td><div class="summary">
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Do not map this database into process memory.
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</div> (Inherited from <a href="T_BerkeleyDB_DatabaseConfig.htm">DatabaseConfig</a>.)</td></tr><tr data="public;inherited;notNetfw;"><td><img src="../icons/pubfield.gif" title="Public field" /></td><td><a href="F_BerkeleyDB_DatabaseConfig_NonDurableTxns.htm">NonDurableTxns</a></td><td><div class="summary">
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If true, Berkeley DB does not write log records for this database.
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</div> (Inherited from <a href="T_BerkeleyDB_DatabaseConfig.htm">DatabaseConfig</a>.)</td></tr><tr data="public;inherited;notNetfw;"><td><img src="../icons/pubfield.gif" title="Public field" /></td><td><a href="F_BerkeleyDB_DatabaseConfig_NoWaitDbExclusiveLock.htm">NoWaitDbExclusiveLock</a></td><td><div class="summary">
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Configuration of <a href="T_BerkeleyDB_BaseDatabase.htm">BaseDatabase</a> handle to obtain a write
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lock on the entire database.
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</div> (Inherited from <a href="T_BerkeleyDB_DatabaseConfig.htm">DatabaseConfig</a>.)</td></tr><tr data="public;inherited;notNetfw;"><td><img src="../icons/pubfield.gif" title="Public field" /></td><td><a href="F_BerkeleyDB_DatabaseConfig_Priority.htm">Priority</a></td><td><div class="summary">
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The cache priority for pages referenced by the database.
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</div> (Inherited from <a href="T_BerkeleyDB_DatabaseConfig.htm">DatabaseConfig</a>.)</td></tr><tr data="public;inherited;notNetfw;"><td><img src="../icons/pubfield.gif" title="Public field" /></td><td><a href="F_BerkeleyDB_DatabaseConfig_ReadOnly.htm">ReadOnly</a></td><td><div class="summary">
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Open the database for reading only. Any attempt to modify items in
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the database will fail, regardless of the actual permissions of any
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underlying files.
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</div> (Inherited from <a href="T_BerkeleyDB_DatabaseConfig.htm">DatabaseConfig</a>.)</td></tr><tr data="public;inherited;notNetfw;"><td><img src="../icons/pubfield.gif" title="Public field" /></td><td><a href="F_BerkeleyDB_DatabaseConfig_ReadUncommitted.htm">ReadUncommitted</a></td><td><div class="summary">
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Support transactional read operations with degree 1 isolation.
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</div> (Inherited from <a href="T_BerkeleyDB_DatabaseConfig.htm">DatabaseConfig</a>.)</td></tr><tr data="public;inherited;notNetfw;"><td><img src="../icons/pubfield.gif" title="Public field" /></td><td><a href="F_BerkeleyDB_DatabaseConfig_Truncate.htm">Truncate</a></td><td><div class="summary">
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Physically truncate the underlying file, discarding all previous databases it might have held.
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</div> (Inherited from <a href="T_BerkeleyDB_DatabaseConfig.htm">DatabaseConfig</a>.)</td></tr><tr data="public;inherited;notNetfw;"><td><img src="../icons/pubfield.gif" title="Public field" /></td><td><a href="F_BerkeleyDB_DatabaseConfig_UseMVCC.htm">UseMVCC</a></td><td><div class="summary">
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Open the database with support for multiversion concurrency control.
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</div> (Inherited from <a href="T_BerkeleyDB_DatabaseConfig.htm">DatabaseConfig</a>.)</td></tr></table></div><h1 class="heading"><span onclick="ExpandCollapse(seeAlsoToggle)" style="cursor:default;" onkeypress="ExpandCollapse_CheckKey(seeAlsoToggle, event)" tabindex="0"><img id="seeAlsoToggle" class="toggle" name="toggleSwitch" src="../icons/collapse_all.gif" />See Also</span></h1><div id="seeAlsoSection" class="section" name="collapseableSection" style=""><div class="seeAlsoStyle"><a href="T_BerkeleyDB_HashDatabaseConfig.htm">HashDatabaseConfig Class</a></div><div class="seeAlsoStyle"><a href="N_BerkeleyDB.htm">BerkeleyDB Namespace</a></div></div></div><div id="footer"><div class="footerLine"><img width="100%" height="3px" src="../icons/footer.gif" title="Footer image" /></div><A NAME="feedback"></A><span id="fb" class="feedbackcss"> </span>
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