Db.set_feedback |
 
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import com.sleepycat.db.*;
public interface DbFeedback
{
public abstract void db_feedback(Db db, int opcode, int pct);
}
public class Db
{
public void set_feedback(DbFeedback db_feedback)
throws DbException;
...
}
public interface DbFeedback { public abstract void db_feedback(Db db, int opcode, int pct); } public class Db { public void set_feedback(DbFeedback db_feedback) throws DbException; ... }
Description
Some operations performed by the Berkeley DB library can take non-trivial amounts of time. The Db.set_feedback method can be used by applications to monitor progress within these operations.
When an operation is likely to take a long time, Berkeley DB will call the specified callback method. This method must be declared with three arguments: the first will be a reference to the enclosing database handle; the second a flag value; and the third the percent of the operation that has been completed, specified as an integer value between 0 and 100. It is up to the callback method to display this information in an appropriate manner.
The opcode argument may take on any of the following values:
- Db.DB_UPGRADE
- The underlying database is being upgraded.
- Db.DB_VERIFY
- The underlying database is being verified.
The Db.set_feedback interface may be used to configure Berkeley DB at any time during the life of the application.
The Db.set_feedback method throws an exception that encapsulates a non-zero error value on failure.
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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