public void set_q_extentsize(int extentsize) throws DbException;
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.
The Db.set_q_extentsize method may fail and throw an exception encapsulating a non-zero error for the following conditions:
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.
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