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Diffstat (limited to 'offapi/com/sun/star/configuration/ConfigurationProvider.idl')
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diff --git a/offapi/com/sun/star/configuration/ConfigurationProvider.idl b/offapi/com/sun/star/configuration/ConfigurationProvider.idl new file mode 100644 index 000000000..ff337bda2 --- /dev/null +++ b/offapi/com/sun/star/configuration/ConfigurationProvider.idl @@ -0,0 +1,238 @@ +/* -*- 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_ConfigurationProvider_idl__ +#define __com_sun_star_configuration_ConfigurationProvider_idl__ + +#include <com/sun/star/lang/XMultiServiceFactory.idl> +#include <com/sun/star/lang/XComponent.idl> + + +module com { module sun { module star { module configuration { + +/** manages one, or more, complete sets of configuration data and serves as a + factory for objects that provide access to a subset of the configuration. + + <p>An implementation is usually obtained from a + com::sun::star::lang::ServiceManager. The arguments passed to + com::sun::star::lang::XMultiComponentFactory::createInstanceWithArgumentsAndContext() + select the configuration data source. Arguments must be provided as + com::sun::star::beans::NamedValue + or com::sun::star::beans::PropertyValue. + If the parameters given are incomplete missing values are taken + from the context or the environment. If an instance already exists for the + given set of arguments, the existing instance may be reused. + In particular, instantiating a provider without explicit arguments to access + the default configuration data will always yield the same + com::sun::star::configuration::DefaultProvider object. + </p> + <p>Some arguments for + com::sun::star::lang::XMultiServiceFactory::createInstanceWithArguments() + may be given default values during creation of this service. In particular + this applies to the parameters <code>"Locale"</code> and <code>"EnableAsync"</code>. + </p> + + @deprecated Use theDefaultProvider instead. + */ +published service ConfigurationProvider +{ +/** allows creating access objects for specific views such as subsets and fragments + of the configuration. + + <p>The parameter <var>aServiceSpecifier</var> passed to + com::sun::star::lang::XMultiServiceFactory::createInstanceWithArguments() + supports at least the service specifiers + <code>"com.sun.star.configuration.ConfigurationAccess"</code> and + <code>"com.sun.star.configuration.ConfigurationUpdateAccess"</code>. + </p> + + <p>Using the first of these service specifiers requests a read-only view of + the configuration. + The object that is created implements service ConfigurationAccess. + To reflect its <em>element role</em> as root of the view, it implements + service AccessRootElement. + </p> + + <p>Using the second form requests an updatable view of the configuration. + The object that is created should implement service + ConfigurationUpdateAccess. To reflect its <em>element role</em> + which includes controlling updates for the whole view, it implements + service UpdateRootElement. + <BR />If the root element of the view is marked read-only (as indicated + by com::sun::star::beans::PropertyAttributes::READONLY), + the implementation may either raise an exception or return a (read-only) + ConfigurationAccess/AccessRootElement instead. + </p> + + <p>The arguments passed to + com::sun::star::lang::XMultiServiceFactory::createInstanceWithArguments() + in parameter <var>aArguments</var> specify the view of the configuration that + should be created. That is, they determine the subset of elements that can be + accessed starting from the returned object. Each element of the argument + sequence should be a com::sun::star::beans::PropertyValue + or a com::sun::star::beans::NamedValue, + so that the parameters can be identified by name rather than by position. + </p> + + <p>What combinations of arguments are supported depends on the service name. + </p> + + <p>With both of the standard service-specifiers above, an implementation must + accept a single argument named <code>nodepath</code> of type `string`. + This argument must contain the absolute path to an element of the + configuration. The view that is selected consists of the named element and + all its descendants. + </p> + + <p>Other arguments can be used to control the behavior of the view. These + are different for different implementations. Whether and how they are used + may also depend on the configuration store and configuration that were + selected when the provider was created. + </p> + + <p>An implementation must ignore unknown arguments.</p> + + <p>Some parameters that are commonly supported are:</p> + + <ul> + <li> + <strong>Selecting data into a view:</strong> + <dl> + <dt><code>"nodepath"</code> : `string`</dt> + <dd>specifies the location of the view root in the configuration.</dd> + <dt><code>"depth"</code> : `short`</dt> + <dd>specifies that elements of the hierarchy that are more than the given + number of nesting levels away from the root need not be included in the + view. + </dd> + <dt><code>"locale"</code> : com::sun::star::lang::Locale</dt> + <dd>specifies the locale for which localized values should be + retrieved. + </dd> + </dl> + + <p><strong>Example:</strong> In the hierarchy +<BR /><pre> + A - B1 - C1 + | + - B2 - C2 (localized: de, en, fr, ..) + | | + | - C3 - D1 + | | | + | | - D2 - E1 + | | + | - C4 - D3 - E2 - F1 + | | | + | | - F2 + | | + | - C5 + | + - B3 + | + - B4 - C6 - D4 - E3 + +</pre> + <BR />selecting a view with <code>nodepath = "/A/B2"</code>, + <code>depth = 2</code> and <code>locale = <Locale for en_US></code> + would result in the tree fragment +<BR /><pre> +(A-) B2 - C2 (en) + | + - C3 - D1 + | | + | - D2 (..) + | + - C4 - D3 (..) + | + - C5 + +</pre> + </p> + </li> + + <li> + <strong>Controlling cache behavior:</strong> (with providers that + cache configuration data) + <dl> + <dt><code>"enableasync"</code> : `boolean`</dt> + <dd>controls how updates are handled in the cache. If `TRUE`, the + cache may operate in <em>write-back</em> mode, where updates at + first only affect the cache and are written to persistent storage + at some later time. If `FALSE`, the cache must operate in + <em>write-through</em> mode, where updates are written to persistent + storage at once - that is before + com::sun::star::util::XChangesBatch::commitChanges() + returns. + <p><em>This parameter was formerly called <code>"lazywrite"</code>. + The old name should still be supported for compatibility. + </em></p> + </dd> + + <dt><code>"nocache"</code> : `boolean`</dt> + <dd>This deprecated parameter + specifies that data for the view is not taken from the cache, but + read directly from storage. This may entail that future changes that + become visible in the cache are not reflected in this view and that + changes done through this view are not reflected in the cache. + <BR /><strong>Use with caution !</strong> + <p><em>This parameter is not supported by all implementations and may be + silently ignored ! + </em></p> + </dd> + </dl> + </li> + </ul> + + <p>com::sun::star::lang::XMultiServiceFactory::createInstance() + may be unusable. Only an implementation that supports service names that can be + used with no further arguments support this method. It should return the + same result as if + com::sun::star::lang::XMultiServiceFactory::createInstanceWithArguments() + had been called using an empty sequence of arguments. + </p> +*/ + interface com::sun::star::lang::XMultiServiceFactory; + + +/** allows controlling or observing the lifetime of the configuration. + + <p>The owner of the provider may dispose of this object + using com::sun::star::lang::XComponent::dispose(). + Note that the default provider is owned by the + com::sun::star::lang::ServiceManager and should not be + disposed of by user code. + </p> + + <p>Views created by the provider generally refer to data that is managed by + the provider. Therefore, disposing of the provider will cause all objects + belonging to these views to be disposed of as well. This does not apply to + <em>snapshot</em> views that have their own copy of the data, if available. + </p> + +*/ + interface com::sun::star::lang::XComponent; + +}; + + +}; }; }; }; + +#endif + + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |