Db.set_q_extentsize |
 
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import com.sleepycat.db.*;
public void set_q_extentsize(int extentsize)
throws DbException;
public void set_q_extentsize(int extentsize) throws DbException;
Description
Set the size of the extents used to hold pages in a Queue database, specified as a number of pages. Each extent is created as a separate physical file. If no extent size is set, the default behavior is to create only a single underlying database file.
For information on tuning the extent size, see Selecting a extent size.
The Db.set_q_extentsize interface may be used only to configure Berkeley DB before the Db.open interface is called.
The Db.set_q_extentsize method throws an exception that encapsulates a non-zero error value on failure.
Errors
The Db.set_q_extentsize method may fail and throw an exception encapsulating a non-zero error for the following conditions:
- EINVAL
- An invalid flag value or parameter was specified.
Called after Db.open was called.
The Db.set_q_extentsize method may fail and throw an exception for errors specified for other Berkeley DB and C library or system methods. If a catastrophic error has occurred, the Db.set_q_extentsize method may fail and throw a DbRunRecoveryException, in which case all subsequent Berkeley DB calls will fail in the same way.
Class
DbSee Also
Db.associate, Db.close, Db.cursor, Db.del, Db.fd, Db.get, Db.pget, Db.get_byteswapped, Db.get_type, Db.join, Db.key_range, Db.open, Db.put, Db.remove, Db.rename, Db.set_append_recno, Db.set_bt_minkey, Db.set_cachesize, Db.set_errcall, Db.set_errpfx, Db.set_feedback, Db.set_flags, Db.set_h_ffactor, Db.set_h_nelem, Db.set_lorder, Db.set_pagesize, Db.set_q_extentsize, Db.set_re_delim, Db.set_re_len, Db.set_re_pad, Db.set_re_source, Db.stat, Db.sync, Db.truncate, Db.upgrade, and Db.verify.|
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