head 1.2; access; symbols RPM_4_2_1:1.1.1.5 RPM_4_2:1.1.1.5 RPM_4_1_1:1.1.1.5 RPM_4_1:1.1.1.4 RPM_4_0_5:1.1.1.3 RPM_4_0_4:1.1.1.2 RPM_4_0_3:1.1.1.1 RPM:1.1.1; locks; strict; comment @# @; 1.2 date 2008.01.02.09.53.54; author rse; state dead; branches; next 1.1; commitid z4cpSiAhOCXk5PLs; 1.1 date 2001.07.23.20.45.36; author rse; state Exp; branches 1.1.1.1; next ; 1.1.1.1 date 2001.07.23.20.45.36; author rse; state Exp; branches; next 1.1.1.2; 1.1.1.2 date 2002.01.08.00.30.10; author rse; state Exp; branches; next 1.1.1.3; 1.1.1.3 date 2003.01.18.13.48.59; author rse; state Exp; branches; next 1.1.1.4; 1.1.1.4 date 2001.12.06.00.08.08; author rse; state Exp; branches; next 1.1.1.5; 1.1.1.5 date 2003.01.18.14.04.58; author rse; state Exp; branches; next ; desc @@ 1.2 log @remove the ancient RPM 4.2.1 source tree copy @ text @ Berkeley DB: Db.cursor

Db.cursor

 APIRef 

import com.sleepycat.db.*;


public Dbc cursor(DbTxn txnid, int flags)
	throws DbException;

Description

The Db.cursor method creates a cursor.

If the operation is to be transaction-protected, the txnid parameter is a transaction handle returned from DbEnv.txn_begin; otherwise, null.

To transaction-protect cursor operations, cursors must be opened and closed within the context of a transaction, and the txnid parameter specifies the transaction context in which the cursor may be used.

The flags value must be set to 0 or by bitwise inclusively OR'ing together one or more of the following values:

Db.DB_DIRTY_READ
All read operations performed by the cursor may return modified but not yet committed data. Silently ignored if the Db.DB_DIRTY_READ flag was not specified when the underlying database was opened.

Db.DB_WRITECURSOR
Specify that the cursor will be used to update the database. The underlying database environment must have been opened using the Db.DB_INIT_CDB flag.

The Db.cursor method throws an exception that encapsulates a non-zero error value on failure.

Errors

The Db.cursor 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.

The Db.cursor 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.cursor method may fail and throw a DbRunRecoveryException, in which case all subsequent Berkeley DB calls will fail in the same way.

Class

Db

See 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.

APIRef

Copyright Sleepycat Software @ 1.1 log @Initial revision @ text @d1 1 a1 1 @ 1.1.1.1 log @Import: RPM 4.0.3 @ text @@ 1.1.1.2 log @Import: RPM 4.0.4 @ text @d1 1 a1 1 d17 1 a17 1 APIRef d25 1 a25 1 throws DbException; d100 1 a100 1 APIRef @ 1.1.1.3 log @Import: RPM 4.0.5 @ text @d1 2 a2 2 a3 1 d55 3 a57 3 If a catastrophic error has occurred, the Db.cursor method may fail and throw a DbRunRecoveryException, in which case all subsequent Berkeley DB calls will fail in the same way. d59 1 a59 1 Dbc d61 37 a97 1 Database Cursors and Related Methods @ 1.1.1.4 log @Import: RPM 4.1 @ text @d1 2 a2 2 d4 1 d56 3 a58 3 If a catastrophic error has occurred, the Db.cursor method may fail and throw a DbRunRecoveryException, in which case all subsequent Berkeley DB calls will fail in the same way. d60 1 a60 1 Db d62 1 a62 37 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. @ 1.1.1.5 log @Import: RPM 4.1.1 @ text @d1 2 a2 2 a3 1 d55 3 a57 3 If a catastrophic error has occurred, the Db.cursor method may fail and throw a DbRunRecoveryException, in which case all subsequent Berkeley DB calls will fail in the same way. d59 1 a59 1 Dbc d61 37 a97 1 Database Cursors and Related Methods @