/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* * This file is part of the LibreOffice project. * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. * * This file incorporates work covered by the following license notice: * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed * with this work for additional information regarding copyright * ownership. The ASF licenses this file to you under the Apache * License, Version 2.0 (the "License"); you may not use this file * except in compliance with the License. You may obtain a copy of * the License at http://www.apache.org/licenses/LICENSE-2.0 . */ #ifndef __com_sun_star_sdb_RowSet_idl__ #define __com_sun_star_sdb_RowSet_idl__ #include module com { module sun { module star { module sdbc { published interface XConnection; };};};}; #include #include module com { module sun { module star { module sdbcx { published interface XDeleteRows; };};};}; module com { module sun { module star { module sdb { published interface XRowSetApproveBroadcaster; published interface XResultSetAccess; published interface XParametersSupplier; /** is a client side RowSet, which use retrieves is data based on a database table, a query or a SQL command or by a row set reader, who mustn't support SQL. The connection of the row set is typically a named DataSource or a DataAccess component or a previous instantiated connection.

Depending on the com::sun::star::sdbc::ResultSetConcurrency , the RowSet caches all data or uses an optimized way for retrieving the data, such as, refetching rows by their keys or if provided, by their bookmarks.

In addition, it provides events for RowSet navigation and RowSet modifications to approve the actions and to react on them. @see com::sun::star::sdb::RowChangeAction @see com::sun::star::sdb::RowChangeEvent @see com::sun::star::sdb::RowsChangeEvent

Notifications

A row set is able to be operated in various ways, and additionally it notifies various changes in its state. Clients of this service can rely on a fixed order of notifications, depending on how they operate on the component.
The following describes the general order of all possible notifications which you can encounter when working with a row set:

approving Before anything really happens, any veto listeners are called to approve the operation which is just being done. This may be either a XRowSetApproveListener::approveCursorMove() or XRowSetApproveListener::approveRowChange() call. @see XRowSetApproveListener

column values If the operation includes changes in the values of the columns of the row set, then these are notified before anything else (except requests for approval). @see ResultSet @see com::sun::star::sdbcx::XColumnsSupplier

operation done When the operation is done, you get a notification about this. It may be a com::sun::star::sdbc::XRowSetListener::cursorMoved() or a com::sun::star::sdbc::XRowSetListener::rowChanged() call or a XRowsChangeListener::rowsChanged() call.

row state If the operation leads to a change in the state of the #IsModified and/or #IsNew property, this is notified next (in this order).

row count If the operation leads to new knowledge about the number of rows in the result set, the respective changes in the #RowCount and #IsRowCountFinal are notified last (in this order).

The following matrix shows the notifications which apply to the different operations:

approveCursorMove approveRowChange column values cursorMoved rowChanged rowsChanged IsModified IsNew RowCount IsRowCountFinal

com::sun::star::sdbc::XResultSet

next X X X X X X X
beforeFirst X X X X X

afterLast X X X X X X X

first X X X X X X X

last X X X X X X X

absolute X X X X X X X

relative X X X X X X X

previous X X X X X X X

refreshRow X X X

cancelRowUpdates X X

com::sun::star::sdbc::XResultSetUpdate

insertRow X X X X X X X X

updateRow X X X X X

deleteRow X X X X X X X

moveToInsertRow X X X X X

moveToCurrentRow X X X X

com::sun::star::sdbcx::XDeleteRows

deleteRows X X X X X X X

com::sun::star::sdbcx::XRowLocate

moveToBookmark X X X X X

moveRelativeToBookmark X X X X X X X

Deletions

Via com::sun::star::sdbc::XResultSetUpdate::deleteRow(), you can delete the current row of a RowSet. This deleted row then doesn't vanish immediately, but is still present, and subsequent calls to com::sun::star::sdbc::XResultSet::rowDeleted() will return `TRUE`. The deleted row "vanishes" from the RowSet as soon as the cursor is moved away from it.
As a consequence, the behavior of several other methods is affected:

com::sun::star::sdbc::XResultSet::getRow(): returns the position of the cursor, which has not been changed by the deletion.
com::sun::star::sdbc::XResultSet: next, first, last, absolute, relative, previous, beforeFirst, afterLast: will let the deleted row vanish from the result set. As a consequence, the #RowCount will decrease when you do such a move operation after deleting a row.
A special case to note is the next call: When you delete row, say, 15, followed by next, then your RowSet afterwards still is on row 15, since the deleted row vanished with the move operation.
com::sun::star::sdbc::XResultSet::refreshRow(): will throw an exception when the cursor is on a deleted row.
com::sun::star::sdbc::XRow: getFoo: will return an empty value when the cursor is on a deleted row.
com::sun::star::sdbcx::XRowLocate::getBookmark(): will throw an exception when the cursor is on a deleted row.
com::sun::star::sdbc::XRowUpdate: updateFoo: will throw an exception when the cursor is on a deleted row.
com::sun::star::sdbc::XResultSetUpdate::deleteRow(): will throw an exception when the cursor is on a deleted row.
com::sun::star::sdbc::XResultSetUpdate::moveToInsertRow(): will let the deleted row vanish from the result set. As a consequence, the #RowCount will decrease. Also, subsequent calls to com::sun::star::sdbc::XResultSetUpdate::moveToCurrentRow() will not be able to move back to the deleted row (since it vanished), but only to the row after the deleted row.

*/ published service RowSet { service com::sun::star::sdbc::RowSet; service com::sun::star::sdb::ResultSet; /** can be used to allow an interaction handler to supply missing data during an execute process.

If you want a row set to be based on a parametrized query, you will usually use the com::sun::star::sdbc::XParameters interface.
However, you can also choose to let an interaction handler supply such data. For this, you may for instance instantiate an InteractionHandler, which asks the user for the data, or you may write your own one, which supplies the data from somewhere else. The default implementation will only ask for parameters which aren't set before through the com::sun::star::sdbc::XParameters interface.

@see com::sun::star::sdb::InteractionHandler */ interface com::sun::star::sdb::XCompletedExecution; /** approving of actions performed on the row set.

The support of this interface implies a semantical extension to the com::sun::star::sdbc::XResultSetUpdate interface which is supported via the com::sun::star::sdbc::ResultSet.

@see XResultSetUpdate */ interface XRowSetApproveBroadcaster; /** is the interface for updating row data to the database.

The optional support of this interface is already implied with the support of the com::sun::star::sdbc::ResultSet service.

However, note that the additional support of the XRowSetApproveBroadcaster interface results in a semantical extension: the methods com::sun::star::sdbc::XResultSetUpdate::insertRow(), com::sun::star::sdbc::XResultSetUpdate::updateRow() and com::sun::star::sdbc::XResultSetUpdate::deleteRow() will now throw the RowSetVetoException if the action which is to be performed was vetoed by one of the XRowSetApproveListener's.

*/ [optional] interface com::sun::star::sdbc::XResultSetUpdate; /** is the interface for deleting more than one row, identified by its bookmark.

The optional support of this interface is already implied with the support of the com::sun::star::sdbcx::ResultSet service.

However, note that the additional support of the XRowSetApproveBroadcaster interface results in a semantical extension: the method com::sun::star::sdbcx::XDeleteRows::deleteRows() will now throw the RowSetVetoException if the deletion was vetoed by one of the XRowSetApproveListener's.

*/ [optional] interface com::sun::star::sdbcx::XDeleteRows; /** creates a second result set which is based on the same data.

The new result set is interoperable with the row set which created it, e.g., you can exchange bookmarks between both sets.

If the row set is not alive (i.e., it was not executed before), `NULL` is returned.

*/ interface XResultSetAccess; /** gives access to the parameters contained in the SQL statement represented by the component.

If your RowSet is bound to an SQL command or query which contains parameters, or has a #Filter or #Order which contains parameters, then those can be accessed using the XParametersSupplier interface.

The returned container contains parameter objects which do allow write access to the parameters (which is equivalent to using the com::sun::star::sdbc::XParameters interface inherited from com::sun::star::sdbc::RowSet). Additionally, they provide information about the parameters, such as their name (if they have one), their type, and the like.

*/ [optional] interface XParametersSupplier; /** is the connection generated by a DataSource or by a URL. It could also be set from outside. When set from outside the RowSet is not responsible for the closing of the connection. */ [property] com::sun::star::sdbc::XConnection ActiveConnection; /** is the name of the datasource to use, this could be a named datasource or the URL of a data access component. */ [property] string DataSourceName; /** is the command which should be executed, the type of command depends on the CommandType.

In case of a #CommandType of CommandType::COMMAND, means in case the #Command specifies an SQL statement, the inherited com::sun::star::sdbc::RowSet::EscapeProcessing becomes relevant:
It then can be to used to specify whether the SQL statement should be analyzed on the client side before sending it to the database server.
The default value for com::sun::star::sdbc::RowSet::EscapeProcessing is `TRUE`. By switching it to `FALSE`, you can pass backend-specific SQL statements, which are not standard SQL, to your database.

@see com::sun::star::sdb::CommandType @see com::sun::star::sdbc::RowSet::EscapeProcessing */ [property] string Command; /** is the type of the command. @see com::sun::star::sdb::CommandType */ [property] long CommandType; /** is the command which is currently used. @see com::sun::star::sdb::CommandType */ [readonly, property] string ActiveCommand; /** indicates whether all results should be discarded or not. */ [property] boolean IgnoreResult; /** additional filter for a row set. */ [property] string Filter; /** indicates whether the filter should be applied or not, default is `FALSE`. */ [property] boolean ApplyFilter; /** additional having clause for the row set */ [optional,property] string HavingClause; /** additional group by for the row set */ [optional,property] string GroupBy; /** is an additional sort order definition for a row set. */ [property] string Order; /** indicates the privileges for insert, update, and delete. @see com::sun::star::sdbcx::Privilege */ [readonly, property] long Privileges; /** indicates that the current row is modified. */ [readonly, property] boolean IsModified; /** indicates that the current row is going to be inserted to the database. */ [readonly, property] boolean IsNew; /** contains the number of rows accessed in the data source. */ [readonly, property] long RowCount; /** indicates that all rows of the row set have been counted. */ [readonly, property] boolean IsRowCountFinal; /** is the name of the table which should be updated, this is usually used for queries which relate to more than one table. */ [optional, property] string UpdateTableName; /** is the name of the table catalog */ [optional, property] string UpdateCatalogName; /** is the name of the table schema. */ [optional, property] string UpdateSchemaName; }; }; }; }; }; /*=========================================================================== ===========================================================================*/ #endif /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

approving	Before anything really happens, any veto listeners are called to approve the operation which is just being done. This may be either a XRowSetApproveListener::approveCursorMove() or XRowSetApproveListener::approveRowChange() call. @see XRowSetApproveListener
column values	If the operation includes changes in the values of the columns of the row set, then these are notified before anything else (except requests for approval). @see ResultSet @see com::sun::star::sdbcx::XColumnsSupplier
operation done	When the operation is done, you get a notification about this. It may be a com::sun::star::sdbc::XRowSetListener::cursorMoved() or a com::sun::star::sdbc::XRowSetListener::rowChanged() call or a XRowsChangeListener::rowsChanged() call.
row state	If the operation leads to a change in the state of the #IsModified and/or #IsNew property, this is notified next (in this order).
row count	If the operation leads to new knowledge about the number of rows in the result set, the respective changes in the #RowCount and #IsRowCountFinal are notified last (in this order).

	approveCursorMove	approveRowChange	column values	cursorMoved	rowChanged	rowsChanged	IsModified	IsNew	RowCount	IsRowCountFinal
com::sun::star::sdbc::XResultSet
next	X		X	X			X	X	X	X
beforeFirst	X		X	X			X	X
afterLast	X		X	X			X	X	X	X
first	X		X	X			X	X	X	X
last	X		X	X			X	X	X	X
absolute	X		X	X			X	X	X	X
relative	X		X	X			X	X	X	X
previous	X		X	X			X	X	X	X
refreshRow			X				X	X
cancelRowUpdates			X				X
com::sun::star::sdbc::XResultSetUpdate
insertRow		X	X		X	X	X	X	X	X
updateRow		X	X		X	X	X
deleteRow		X			X	X	X	X	X	X
moveToInsertRow	X		X	X				X	X
moveToCurrentRow	X			X			X	X
com::sun::star::sdbcx::XDeleteRows
deleteRows		X			X	X	X	X	X	X
com::sun::star::sdbcx::XRowLocate
moveToBookmark	X		X	X			X	X
moveRelativeToBookmark	X		X	X			X	X	X	X