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/* -*- 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_configuration_backend_XMultiLayerStratum_idl__
#define __com_sun_star_configuration_backend_XMultiLayerStratum_idl__
#include <com/sun/star/uno/XInterface.idl>
#include <com/sun/star/configuration/backend/XLayer.idl>
#include <com/sun/star/configuration/backend/XUpdatableLayer.idl>
#include <com/sun/star/configuration/backend/BackendAccessException.idl>
#include <com/sun/star/lang/IllegalArgumentException.idl>
#include <com/sun/star/lang/NoSupportException.idl>
module com { module sun { module star { module configuration { module backend {
/**
Handles access to a stratum consisting of multiple layers
in a single configuration data repository
<p> The interface provides access to data for multiple entities and
timestamp-checking capabilities for efficient caching.
</p>
@see com::sun::star::configuration::backend::XBackendEntities
@see com::sun::star::util::XTimeStamped
@see com::sun::star::configuration::backend::XSchemaSupplier
@see com::sun::star::configuration::backend::XSingleLayerStratum
@since OOo 1.1.2
*/
published interface XMultiLayerStratum : ::com::sun::star::uno::XInterface
{
/**
identifies the layers within this stratum which should be read and
merged to determine data of a component for an entity
@param aComponent
The name of the component to access.
@param aEntity
The name of an entity on behalf of which data will be accessed.
@return
a list of layer identifiers that can be used to
retrieve Layer objects.
<p> The list is ordered by priority. Typically
the most general layers (global defaults,
entire organization) are first, more specific layers
(associated to specific groups or roles) are next
and the entity's own data is last.
</p>
@throws com::sun::star::lang::IllegalArgumentException
if the component identifier is invalid or
if the entity doesn't exist.
@throws com::sun::star::configuration::backend::BackendAccessException
if an error occurs while accessing the data.
@see com::sun::star::configuration::backend::XMultiLayerStratum::getLayer()
@see com::sun::star::configuration::backend::XMultiLayerStratum::getLayers()
@see com::sun::star::configuration::backend::XMultiLayerStratum::getMultipleLayers()
@see com::sun::star::configuration::backend::XBackendEntities
*/
sequence<string> listLayerIds([in] string aComponent,
[in] string aEntity)
raises (BackendAccessException,
com::sun::star::lang::IllegalArgumentException) ;
/**
identifies the layer which should be modified
to update data of a component on behalf of an entity.
<p> The layer id returned is one of the layer ids obtained from
XMultiLayerStratum::listLayerIds() for the same
component and entity.
</p>
@param aComponent
The name of the component to access.
@param aEntity
The name of an entity on behalf of which data will be accessed.
@returns
a layer identifier that can be used to obtain
an UpdatableLayer object.
@throws com::sun::star::lang::IllegalArgumentException
if the component identifier is invalid or
if the entity doesn't exist.
@throws com::sun::star::lang::NoSupportException
if the implementation does not support updates.
@throws com::sun::star::configuration::backend::BackendAccessException
if an error occurs while accessing the data.
@see com::sun::star::configuration::backend::XMultiLayerStratum::getUpdatableLayer()
@see com::sun::star::configuration::backend::XBackendEntities
*/
string getUpdateLayerId([in] string aComponent,
[in] string aEntity)
raises (BackendAccessException,
com::sun::star::lang::NoSupportException,
com::sun::star::lang::IllegalArgumentException) ;
/**
retrieves a layer associated to a layer id, if newer than indicated.
<p> A timestamp can be provided, which is used to indicate
a point in time. The layer should be returned only if is modified
since that time.
</p>
@param aLayerId
identifier of the layers to be accessed.
<p>Layer ids can be obtained from
XMultiLayerStratum::listLayerIds() or
XMultiLayerStratum::getUpdateLayerId().
</p>
@param aTimestamp
a timestamp for the layer.
<p> An empty timestamp indicates, that the layer should be
retrieved irrespective of its modification time.
</p>
<p> The format and meaning of a timestamp depends on
the implementation. Timestamps can be obtained using
com::sun::star::util::XTimeStamped::getTimestamp().
</p>
@returns
a Layer object providing access to the layer data,
`NULL` if the layer is newer than indicated by the timestamp.
@throws com::sun::star::lang::IllegalArgumentException
if the layer id is invalid or
if the timestamp is invalid
@throws com::sun::star::configuration::backend::BackendAccessException
if an error occurs while accessing the data.
@see com::sun::star::util::XTimeStamped
*/
XLayer getLayer([in] string aLayerId,
[in] string aTimestamp)
raises (BackendAccessException,
com::sun::star::lang::IllegalArgumentException) ;
/**
retrieves the layers associated to a series of layer ids,
if newer than indicated.
<p> A timestamp can be provided, which is used to indicate
a point in time. Only layers that are modified since that time
should be returned. The same timestamp is used for all layers.
</p>
@param aLayerIds
identifiers of the layers to be accessed.
<p>Layer ids can be obtained from
XMultiLayerStratum::listLayerIds().
</p>
@param aTimestamp
a timestamp for all of the layers.
<p> An empty timestamp indicates, that the layers should be
retrieved irrespective of their modification time.
</p>
<p> The format and meaning of a timestamp depends on
the implementation. Timestamps can be obtained using
com::sun::star::util::XTimeStamped::getTimestamp().
</p>
@returns
a list of Layer objects
providing access to the layer data.
<p> The list has the same length as aLayerIds. Each layer
object is associated to the layer id in the corresponding
position.
</p>
<p> For layers that are newer than indicated by the
timestamp, the list contains a `NULL` element.
</p>
@throws com::sun::star::lang::IllegalArgumentException
if one of the layer ids is invalid or
if the timestamp is invalid
@throws com::sun::star::configuration::backend::BackendAccessException
if an error occurs while accessing the data.
@see com::sun::star::util::XTimeStamped
*/
sequence<XLayer> getLayers([in] sequence<string> aLayerIds,
[in] string aTimestamp)
raises (BackendAccessException,
com::sun::star::lang::IllegalArgumentException) ;
/**
retrieves the layers associated to a series of layer ids,
if newer than indicated for each layer.
<p> For each layer an individual timestamp can be provided,
which is used to indicate the last known version of the layer.
Only layers that are modified since that time should be returned.
</p>
@param aLayerIds
identifiers of the layers to be accessed.
<p>Layer ids can be obtained from
XMultiLayerStratum::listLayerIds().
</p>
@param aTimestamps
timestamps for each of the layers.
<p> This list must have the same length as aLayerIds.
Timestamps are matched to layer ids by their position.
</p>
<p> An empty timestamp indicates, that the associated layer
should be retrieved irrespective of its modification time.
</p>
<p> The format and meaning of a timestamp depends on
the implementation. Timestamps can be obtained using
com::sun::star::util::XTimeStamped::getTimestamp().
</p>
@returns
a list of Layer objects
providing access to the layer data.
<p> The list has the same length as aLayerIds. Each layer
object is associated to the layer id in the corresponding
position.
</p>
<p> For layers that are newer than indicated by the corresponding
timestamp, the list contains a `NULL` element.
</p>
@throws com::sun::star::lang::IllegalArgumentException
if one of the layer ids is invalid or
if one of the timestamps is invalid or
if the lengths of the arguments don't match.
@throws com::sun::star::configuration::backend::BackendAccessException
if an error occurs while accessing the data.
@see com::sun::star::util::XTimeStamped
*/
sequence<XLayer> getMultipleLayers([in] sequence<string> aLayerIds,
[in] sequence<string> aTimestamps)
raises (BackendAccessException,
com::sun::star::lang::IllegalArgumentException) ;
/**
retrieves a writable representation of the layer
associated to a layer id.
@param aLayerId
identifier of the layer to be accessed for writing.
<p>A layer id for writing can be obtained from
XMultiLayerStratum::getUpdateLayerId().
</p>
@return
an UpdatableLayer object providing
write access to the layer
@throws com::sun::star::lang::IllegalArgumentException
if the layer id is invalid.
@throws com::sun::star::lang::NoSupportException
if the implementation does not support updates.
@throws com::sun::star::configuration::backend::BackendAccessException
if an error occurs while accessing the data.
*/
XUpdatableLayer getUpdatableLayer([in] string aLayerId)
raises (BackendAccessException,
com::sun::star::lang::NoSupportException,
com::sun::star::lang::IllegalArgumentException) ;
} ;
} ; } ; } ; } ; } ;
#endif
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