xref: /aoo41x/main/offapi/com/sun/star/ucb/Content.idl (revision bde78562)

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#ifndef __com_sun_star_ucb_Content_idl__
#define __com_sun_star_ucb_Content_idl__

#include <com/sun/star/ucb/XContent.idl>
#include <com/sun/star/lang/XComponent.idl>
#include <com/sun/star/ucb/XCommandProcessor.idl>
#include <com/sun/star/ucb/XCommandProcessor2.idl>
#include <com/sun/star/ucb/XCommandInfoChangeNotifier.idl>
#include <com/sun/star/beans/XPropertyContainer.idl>
#include <com/sun/star/beans/XPropertySetInfoChangeNotifier.idl>
#include <com/sun/star/beans/XPropertiesChangeNotifier.idl>
#include <com/sun/star/ucb/XContentCreator.idl>
#include <com/sun/star/container/XChild.idl>

module com { module sun { module star { module ucb {

/** A <type>Content</type> is a service that provides access to data of a
    content provided by an implementation of the service
    <type>ContentProvider</type>.
*/
published service Content
{

    /** provides access to the identitity and the type of the content and
        allows the registration of listeners for <type>ContentEvent</type>s.

        <p>This interface is required.
     */
    interface com::sun::star::ucb::XContent;


    /** must be implemented to make it possible to resolve cyclic object
        references.

        <p>Those references i.e. may occure if there are listeners
        registered at the content ( the content holds the listeners ) and
        the implementation of the listener interface holds a reference on
        the content. If the content shall be released,
        <member scope="com::sun::star::lang">XComponent::dispose</member> must
        be called at the content. The implementation of this method must call
        <member scope="com::sun::star::lang">XEventListener::disposing</member>
        on the registered listeners and release the appropriate object
        references. At the other hand, the implementation of
        XEventListener::disposing must release its appropriate references.

        <p>This interface is required.
     */
    interface com::sun::star::lang::XComponent;


    /** enables the caller to let the content execute commands.

        <p>It is strongly recommended that any implementation supports the
        improved <type>XCommandProcessor2</type> interface.</p>

        <p>Typical commands are "open", "delete", "getPropertyValues" and
        "setPropertyValues". Each content must support a set of standard
        commands and properties. Also there is a set of predefined optionally
        commands and properties. A content may define additional commands and
        properties. </p>

        <p>This interface is required.</p>

        <h3>Commands</h3>
        <h4>Mandatory commands</h4>

        <table style="border-width: 1px; border-spacing: 0px; border-style: solid; border-color: gray; border-collapse: collapse; background-color: white;" class="devdoc">
            <thead>
                <tr>
                    <th>Command Name</th>
                    <th>Return Type</th>
                    <th>Parameters</th>
                    <th>Description</th>
                </tr>
            </thead>
            <tbody>
                <tr>
                    <td>getCommandInfo</td>
                    <td><type>XCommandInfo</type></td>
                    <td>void</td>
                    <td>This command obtains an interface which allows to query
                        information on commands supported by a content.
                    </td>
                </tr>
                <tr>
                    <td>getPropertySetInfo</td>
                    <td><type scope="com::sun::star::beans">XPropertySetInfo</type></td>
                    <td>void</td>
                    <td>This command obtains an interface which allows to query
                        information on properties supported by a content.
                    </td>
                </tr>
                <tr>
                    <td>getPropertyValues</td>
                    <td><type scope="com::sun::star::sdbc">XRow</type></td>
                    <td>sequence&lt; <type scope="com::sun::star::beans">Property</type> &gt; aProps</td>
                    <td>This command obtains property values from the content.
                        <blockquote>
                            <b>Note</b>: The execution will not be aborted, if there
                            are properties requested, that are unknown to the
                            content. The returned row object must contain a NULL
                            value in the corresponding column instead.
                        </blockquote>
                    </td>
                </tr>
                <tr>
                    <td>setPropertyValues</td>
                    <td>sequence&lt; any &gt;</td>
                    <td>sequence&lt; <type scope="com::sun::star::beans">PropertyValue</type> &gt; aValues</td>
                    <td>This command sets property values of the content.
                        <p>Note that setPropertyValues does not throw an exception in the case
                        that one or more of the requested property values cannot be set.
                        The implementation should set as much property values as possible.</p>

                        <p>This command returns a sequence< any > which has exactly the same number
                        of elements like the number of properties to set. Every sequence
                        element contains the status for a property. The first sequence
                        elements corresponds to the first element in the sequence of
                        <type scope="com::sun::star::beans">PropertyValue</type>s passed as
                        command argument, and so on. The exceptions will never be passed to
                        an <type scope="com::sun::star::task">InteractionHandler</type>.</p>

                        <p>Every element in the returned sequence is an any containing:</p>
                        <ul>
                            <li>No value indicates, that the property value was set successfully.</li>
                            <li><type scope="com::sun::star::beans">UnknownPropertyException</type>
                            indicates, that the property is not known to the content
                            implementation.</li>
                            <li><type scope="com::sun::star::beans">IllegalTypeException</type>
                            indicates, that the data type of the property value is not
                            acceptable.</li>
                            <li><type scope="com::sun::star::lang">IllegalAccessException</type>
                            indicates, that the property is constant
                            (<member scope="com::sun::star::beans">PropertyAttribute::READONLY</member>
                            is set).</li>
                            <li><type scope="com::sun::star::lang">IllegalArgumentException</type>
                            indicates, that the property value is not acceptable. For instance,
                            setting an empty title may be illegal.</li>
                            <li>Any other execption derived from <type scope="com::sun::star::uno">Exception</type>
                            indicates, that the value was not set successfully. For example,
                            this can be a <type>InteractiveAugmentedIOException</type>
                            transporting the error code <member>IOErrorCode::ACCESS_DENIED</member>.</li>
                        </ul>

                        <p>If the value to set is equal to the current value, no exception must
                        be added to the returned sequence</p>
                    </td>
                </tr>
            </tbody>
        </table>

        <h4>Optional commands</h4>
        <table style="border-width: 1px; border-spacing: 0px; border-style: solid; border-color: gray; border-collapse: collapse; background-color: white;" class="devdoc">
            <thead>
                <tr>
                    <th>Command Name</th>
                    <th>Return Type</th>
                    <th>Parameters</th>
                    <th>Description</th>
                </tr>
            </thead>
            <tbody>
                <tr>
                    <td>open</td>
                    <td><type>XDynamicResultSet</type></td>
                    <td><type>OpenCommandArgument2</type> aOpenCommandArg</td>
                    <td>
                        For <b>folder</b> objects, this command will return an
                        implementation of service <type>DynamicResultSet</type>.
                        <p>The <type>OpenCommandArgument2</type> members must be
                        filled as follows:</p>
                        <ul>
                            <li><member scope="com::sun::star::ucb">OpenCommandArgument::Mode</member>:
                                <const scope="com::sun::star::ucb">OpenMode::ALL</const> or
                                <const scope="com::sun::star::ucb">OpenMode::FOLDERS</const> or
                                <const scope="com::sun::star::ucb">OpenMode::DOCUMENTS</const>.
                                The implementation of the open command MUST support all these modes!
                            </li>
                            <li><member scope="com::sun::star::ucb">OpenCommandArgument::Priority</member>:
                                can be set, but implementation may ignore the value
                            </li>
                            <li><member scope="com::sun::star::ucb">OpenCommandArgument::Sink</member>:
                                empty( ignored )
                            </li>
                            <li><member scope="com::sun::star::ucb">OpenCommandArgument::Properties</member>:
                                The properties for which the result set shall
                                contain the property values. The order of the
                                sequence is the same as the order of result set
                                columns. First element of sequence will be row
                                number one, second will be row number two, ...
                            </li>
                            <li><member scope="com::sun::star::ucb">OpenCommandArgument2::SortingInfo</member>:
                                contains sort criteria, if result set shall
                                be sorted, otherwise it can be left empty.
                            </li>
                        </ul>
                        The exceution must be aborted by the implementation of this command
                        (by throwing a <type>CommandAbortedException</type>), if an
                        unsupported mode is requested.
                    </td>
                </tr>
                <tr>
                    <td>open</td>
                    <td>void</td>
                    <td><type>OpenCommandArgument2</type> aOpenCommandArg</td>
                    <td>For non-folder objects, the <type>OpenCommandArgument2</type>
                        struct will be prefilled with a data sink object, which
                        will be filled with the content data.
                        <p>The <type>OpenCommandArgument2</type> members must be
                        filled as follows:</p>
                        <ul>
                            <li><member scope="com::sun::star::ucb">OpenCommandArgument::Mode</member>:
                                <const scope="com::sun::star::ucb">OpenMode::DOCUMENT</const> or
                                <const scope="com::sun::star::ucb">OpenMode::DOCUMENT_SHARE_DENY_NONE</const> or
                                <const scope="com::sun::star::ucb">OpenMode::DOCUMENT_SHARE_DENY_WRITE</const>.
                                Support for DOCUMENT is mandatory, all others are optional.
                            </li>
                            <li><member scope="com::sun::star::ucb">OpenCommandArgument::Priority</member>:
                                can be set, but implementation may ignore the value
                            </li>
                            <li><member scope="com::sun::star::ucb">OpenCommandArgument::Sink</member>:
                                a sink, where the implementation can put the document data into.
                            </li>
                            <li><member scope="com::sun::star::ucb">OpenCommandArgument::Properties</member>: empty ( ignored )</li>
                            <li><member scope="com::sun::star::ucb">OpenCommandArgument2::SortingInfo</member>: empty ( ignored )</li>
                        </ul>
                        <p>The exceution must be aborted by the implementation of this command
                        (by throwing a <type>CommandAbortedException</type>), if an
                        unsupported mode is requested.</p>
                    </td>
                </tr>
                <tr>
                    <td>createNewContent</td>
                    <td><type>XContent</type></td>
                    <td><type>ContentInfo</type> contentinfo</td>
                    <td>
                        This command creates a new <b>non-persistent</b> content of a given type.
                        <p>This command must be supported by every <type>Content</type>
                        that supports the property "CreatableContentsInfo", if the returned
                        property value contains a non-empty sequence of creatable types.
                        <blockquote>
                            Note: This command is part of the replacement for the deprecated
                            interface <type>XContentCreator</type>.
                        </blockquote>
                        <p>Creation of a new <b>persistent</b> content:
                        <ol>
                            <li>creatabletypes = obtain "CreatableContentsInfo" property from creator</li>
                            <li>choose a suitable type from creatabletypes</li>
                            <li>newObject = execute command "createNewContent(type)" at creator</li>
                            <li>initialize the new object (i.e. newObject.Property1 = ...)</li>
                            <li>execute command "insert" at new content. This command
                                commits the data and makes the new content persistent.</li>
                        </ol>
                    </td>
                </tr>
                <tr>
                    <td>insert</td>
                    <td>void</td>
                    <td><type>InsertCommandArgument</type> aInsertCommandArg</td>
                    <td>
                        <ol>
                            <li>
                                This command inserts a <b>new content</b>. It commits the process of
                                creating a new content via executing the command "createNewContent"
                                and initializing it via setting properties, afterwards.</br>
                                The command is not called on the content which created the new
                                content, because the new object already knows where it is to be
                                inserted (i.e. Calling createNewContent with the content type for a
                                message on a News Group creates a content which internally belongs
                                to the Outbox. Calling "insert" on that message will result in
                                posting the article to the appropriate News Group). Not calling
                                "insert" for the new content, i.e. because the user cancels writing
                                a new message, simply discards the new object. No extra call to
                                "delete" is necessary.</br>
                                On successful completion of this command, the parent of the inserted
                                content must propagate the change by notifying a
                                <type>ContentEvent</type> - <member>ContentAction::INSERTED</member>.
                            </li>
                            <li>
                                Additionally this command can be called at any time to overwrite
                                the data of an <b>existing content</b>.
                            </li>
                        </ol>
                    </td>
                </tr>
                <tr>
                    <td>update</td>
                    <td>void</td>
                    <td><type>OpenCommandArgument2</type> aOpenCommandArg</td>
                    <td>This command triggers an update operation on a content.
                        For example, when "updating" a POP3-Inbox, the content
                        for that box will get and store all new objects on the
                        appropriate server. The inserted contents will be
                        notified by calling
                        <member>XContentEventListener::contentEvent</member>.
                    </td>
                </tr>
                <tr>
                    <td>synchronize</td>
                    <td>void</td>
                    <td><type>OpenCommandArgument2</type> aOpenCommandArg</td>
                    <td>
                        This command triggers a synchronization operation between locally
                        cached data and remote server's data. For example, when
                        "synchronizing" a POP3-Inbox the content for that box will get and
                        store all new objects and destroy all cached data for objects no
                        longer existing on the server. The inserted/deleted contents will
                        be notified by calling
                        <member>XContent::contentEvent</member>.
                    </td>
                </tr>
                <tr>
                    <td>close</td>
                    <td>void</td>
                    <td>void</td>
                    <td>This command closes an object.</td>
                </tr>
                <tr>
                    <td>delete</td>
                    <td>void</td>
                    <td>boolean bDeletePhysically</td>
                    <td>
                        This command deletes an object. If <TRUE/> is passed as parameter,
                        the object will be destroyed physically. Otherwise it will be put
                        into trash can, if such a service is available and the object to
                        be deleted supports the command "undelete".
                        On successful completion of this command, the deleted content
                        must propagate its deletion by notifying a <type>ContentEvent</type>
                        - <member>ContentAction::DELETED</member>. Additionally, the contents
                        parent must notify a <type>ContentEvent</type>
                        - <member>ContentAction::REMOVED</member>
                    </td>
                </tr>
                <tr>
                    <td>undelete</td>
                    <td>void</td>
                    <td>void</td>
                    <td>
                        This command restores an object previously deleted into trash. It
                        must be supported by objects which claim to be undeletable, but
                        should never be called directly.
                    </td>
                </tr>
                <tr>
                    <td>search</td>
                    <td><type>XDynamicResultSet</type></td>
                    <td><type>SearchCommandArgument</type> aSearchCommandArg</td>
                    <td>
                        This command searches for subcontents of a content matching the
                        given search criteria. The command will return an implemenation
                        of service <type>DynamicResultSet</type>.
                    </td>
                </tr>
                <tr>
                    <td>transfer</td>
                    <td>void</td>
                    <td><type>TransferInfo</type> aTransferInfo</td>
                    <td>
                        <blockquote>
                            <b>Important note:</b> A client that wants to transfer data should
                            not execute this command, but it should execute the command
                            "globalTransfer" at the <type>UniversalContentBroker</type>.
                            This command is able to transfer all kind of content
                            supported by that UCB.
                        </blockquote>
                        This command transfers (copies/moves) an object from one location
                        to another. It must be executed at the folder content representing
                        the <b>destination</b> of the transfer operation.</br>
                        Note that the implementation need not be able to handle
                        any type of contents.</br>
                        Generally, there are good chances that a transfer of a content will
                        succeed, if source and target folder have the same URL scheme.
                        But there is no guaranty for that.</br>
                        For instance, moving a message from a folder on IMAP server A
                        to a folder on IMAP server B may fail, because the transfer
                        command can't be implemented efficiently for this scenario,
                        because it is not directly supported by the IMAP protocol.
                        On the other hand, moving a message from one folder to
                        another folder on the same IMAP server should work, because it can
                        be implemeted efficiently.</br>
                        If an implementation is not able to handle a given source URL,
                        it should indicate this by issuing a
                        <type>InteractiveBadTransferURLException</type> interaction request.</br>
                        Source and target folder may be the same when doing a move operation.
                        </br>
                        Transfers without the transfer command can be done as follows:
                        <ol>
                            <li>Create a new content at the target folder</br>
                            <code>targetContent = target.execute( "createNewContent", type )</code>
                            </li>
                            <li>Transfer data from source to target content</br>
                            <code>props = sourceContent.execute( "getPropertyValues", ... )</code>
                            <code>dataStream = sourceContent.execute( "open", ... )</code>
                            <code>targetContent.execute( "setPropertyValues", props )</code>
                            </li>
                            <li>Insert ( commit ) the new content</br>
                            <code>targetContent.execute( "insert", dataStream )</code>
                            </li>
                            <li>For move operations only: destroy the source content</br>
                            <code>sourceContent.execute( "delete", ... )</code>
                            </li>
                        </ol>
                        <p>This mechanism should work for all transfer operations, but generally
                        it's less efficient than the transfer command.</p>
                    </td>
                </tr>
                <tr>
                    <td>lock</td>
                    <td>void</td>
                    <td>void</td>
                    <td>
                        This command obtains an exlusive write lock for the resource. The
                        lock is active until command "unlock" is executed, or the OOo
                        session that obtained the lock ends, or until the lock is released by
                        a third party (e.g. a system administrator).</br>
                        Exceptions:
                        <ul>
                            <li><type>InteractiveLockingLockedException</type></li>
                            <li><type>InteractiveLockingLockExpiredException</type></li>
                        </ul>
                    </td>
                </tr>
                <tr>
                    <td>unlock</td>
                    <td>void</td>
                    <td>void</td>
                    <td>
                        This command removes a lock obtained by executing the command "lock"
                        from the resource.</br>
                        <p>Exceptions:
                        <ul>
                            <li><type>InteractiveLockingLockedException</type></li>
                            <li><type>InteractiveLockingLockExpiredException</type></li>
                        </ul>
                        </p>
                        <p>Note that <type>InteractiveLockingLockExpiredException</type> might
                        be raised by any command that requires a previously obtained lock.
                        </p>
                    </td>
                </tr>
            </tbody>
        </table>

        <h3>Properties</h3>
        <h4>Mandatory properties</h4>

        <table style="border-width: 1px; border-spacing: 0px; border-style: solid; border-color: gray; border-collapse: collapse; background-color: white;" class="devdoc">
            <thead>
                <tr>
                    <th>Name</th>
                    <th>Type</th>
                    <th>Description</th>
                </tr>
            </thead>
            <tbody>
                <tr>
                    <td>ContentType</td>
                    <td>string</td>
                    <td>
                        contains a unique type string for the content
                        ( i.e. "application/vnd.sun.star.hierarchy-link" ).
                        <p>This property is always read-only.</p>
                        <p>The ContentType should not be confused with the MIME
                        media type ( MIME types ) of the content. Media types
                        may be provided through the optional property "MediaType".</p>
                        <p>The value of this property should match the information on creatable
                        contents given by UCB contents that implement the property
                        "CreatableContentsInfo".</p>
                    </td>
                </tr>
                <tr>
                    <td>IsFolder</td>
                    <td>boolean</td>
                    <td>indicates, whether a content can contain other contents.</td>
                </tr>
                <tr>
                    <td>IsDocument</td>
                    <td>boolean</td>
                    <td>indicates, whether a content is a document. This means,
                        the content can dump itself into a data sink.
                    </td>
                </tr>
                <tr>
                    <td>Title</td>
                    <td>string</td>
                    <td>contains the title of an object (e.g. the subject of a message).</td>
                </tr>
            </tbody>
        </table>

        <h4>Optional properties</h4>

        <table style="border-width: 1px; border-spacing: 0px; border-style: solid; border-color: gray; border-collapse: collapse; background-color: white;" class="devdoc">
            <thead>
                <tr>
                    <th>Name</th>
                    <th>Type</th>
                    <th>Description</th>
                </tr>
            </thead>
            <tbody>
                <tr>
                    <td>AutoUpdateInterval</td>
                    <td>long</td>
                    <td>contains the interval for automatic updates of an object.
                        It is specified in seconds.
                    </td>
                </tr>
                <tr>
                    <td>ConnectionLimit</td>
                    <td>short</td>
                    <td>contains the maximum number of network connections
                        allowed for one (internet) protocol at a time. (e.g. The HTTP
                        cache can be configured to use a maximum for the number of
                        connections used for browsing.)
                    </td>
                </tr>
                <tr>
                    <td>ConnectionMode</td>
                    <td>short</td>
                    <td>contains the current connection mode for the object.
                        (see <type>ConnectionMode</type>)
                    </td>
                </tr>
                <tr>
                    <td>CreatableContentsInfo</td>
                    <td>sequence <type>ContentInfo</type></td>
                    <td>
                        contains the types of Contents a Content object can create via
                        command "createNewContent".
                        <p>If the property value can be a non-empty sequence, the
                        Content must also support command "createNewContent".</p>
                        <blockquote>
                            Note: This property is part of the replacement for the deprecated
                            interface <type>XContentCreator</type>.
                        </blockquote>
                    </td>
                </tr>
                <tr>
                    <td>DateCreated</td>
                    <td><type scope"com::sun::star::util">DateTime</type></td>
                    <td>contains the date and time the object was created.</td>
                </tr>
                <tr>
                    <td>DateModified</td>
                    <td><type scope"com::sun::star::util">DateTime</type></td>
                    <td>contains the date and time the object was last modified.</td>
                </tr>
                <tr>
                    <td>DocumentCount</td>
                    <td>long</td>
                    <td>contains the count of documents of a folder.</td>
                </tr>
                <tr>
                    <td>DocumentCountMarked</td>
                    <td>long</td>
                    <td>contains the count of marked documents within a folder.</td>
                </tr>
                <tr>
                    <td>DocumentHeader</td>
                    <td>sequence&lt; <type>DocumentHeaderField</type> &gt; </td>
                    <td>contains a sequence of documemt header fields (i.e. header
                        fields of a MIME-message, or the document info of an
                        office document ). For some standard header fields there
                        are predefined separate properties, like &quot;MessageTo&quot;.
                    </td>
                </tr>
                <tr>
                    <td>DocumentStoreMode</td>
                    <td><type>DocumentStoreMode</type></td>
                    <td>contains information about the way a folder stores the
                        contents of (remote) documents.
                    </td>
                </tr>
                <tr>
                    <td>FolderCount</td>
                    <td>long</td>
                    <td>contains the count of subfolders of a folder.</td>
                </tr>
                <tr>
                    <td>FreeSpace</td>
                    <td>hyper</td>
                    <td>contains the free space left on a storage device. It is
                        specified in bytes.</td>
                </tr>
                <tr>
                    <td>HasDocuments</td>
                    <td>boolean</td>
                    <td>indicates whether a content has subcontents, which are documents.</td>
                </tr>
                <tr>
                    <td>HasFolders</td>
                    <td>boolean</td>
                    <td>indicates whether a content has subcontents, which are folders.</td>
                </tr>
                <tr>
                    <td>IsMarked</td>
                    <td>boolean</td>
                    <td>indicates whether a content is &quot;marked&quot;.</td>
                </tr>
                <tr>
                    <td>IsRead</td>
                    <td>boolean</td>
                    <td>indicates whether a content has been "read".</td>
                </tr>
                <tr>
                    <td>IsReadOnly</td>
                    <td>boolean</td>
                    <td>indicates whether a content is read-only.</td>
                </tr>
                <tr>
                    <td>IsSubscribed</td>
                    <td>boolean</td>
                    <td>indicates whether a content is subscribed.</td>
                </tr>
                <tr>
                    <td>IsTimeLimitedStore</td>
                    <td>boolean</td>
                    <td>indicates whether the feature to store contents
                        depending on their age is active.</td>
                </tr>
                <tr>
                    <td>UpdateOnOpen</td>
                    <td>boolean</td>
                    <td>indicates whether (sub)contents shall be automatically updated
                        everytime a (folder) content is opened.</br>This property may be
                        used to control whether a folder content should read data only
                        from local cache when it is opened, or whether it should connect
                        to a server to obtain latest data.</td>
                </tr>
                <tr>
                    <td>Keywords</td>
                    <td>string</td>
                    <td>contains the keywords of a document (e.g. the value
                        of the &quot;keywords&quot; header field of a news article).</td>
                </tr>
                <tr>
                    <td>MediaType</td>
                    <td>string</td>
                    <td>contains the media type ( MIME type ) of a content. It is highly
                        recommended to support this property if the content's implementation
                        can obtain the media type natively from its data source ( i.e.
                        HTTP servers provide media types for all their documents ).
                    </td>
                </tr>
                <tr>
                    <td>MessageBCC</td>
                    <td>string</td>
                    <td>contains the BCC (blind carbon copy) receiver(s) of a message.</td>
                </tr>
                <tr>
                    <td>MessageCC</td>
                    <td>string</td>
                    <td>contains the CC (carbon copy) receiver(s) of a message.</td>
                </tr>
                <tr>
                    <td>MessageFrom</td>
                    <td>string</td>
                    <td>contains (the address of) the sender of a message.</td>
                </tr>
                <tr>
                    <td>MessageId</td>
                    <td>string</td>
                    <td>contains the ID of a message.</td>
                </tr>
                <tr>
                    <td>MessageInReplyTo</td>
                    <td>string</td>
                    <td>contains the &quot;In-Reply-To&quot; field of a message.</td>
                </tr>
                <tr>
                    <td>MessageReplyTo</td>
                    <td>string</td>
                    <td>contains the &quot;Reply-To&quot; field of a message.</td>
                </tr>
                <tr>
                    <td>MessageTo</td>
                    <td>string</td>
                    <td>contains the recipient(s) of a message.</td>
                </tr>
                <tr>
                    <td>NewsGroups</td>
                    <td>string</td>
                    <td>contains the name(s) of the newsgroup(s) into which a message was posted.</td>
                </tr>
                <tr>
                    <td>Password</td>
                    <td>string</td>
                    <td>contains a password (e.g. needed to access a POP3-Server).</td>
                </tr>
                <tr>
                    <td>Priority</td>
                    <td><type>Priority</type></td>
                    <td>contains a priority (i.e. of a message).</td>
                </tr>
                <tr>
                    <td>References</td>
                    <td>string</td>
                    <td>contains the &quot;References&quot; field of a news article.</td>
                </tr>
                <tr>
                    <td>Rules</td>
                    <td><type>RuleSet</type></td>
                    <td>contains the rules set for a content.</td>
                </tr>
                <tr>
                    <td>SeenCount</td>
                    <td>long</td>
                    <td>contains the count of seen/read subcontents of a folder content.</td>
                </tr>
                <tr>
                    <td>ServerBase</td>
                    <td>string</td>
                    <td>contains the base directory to use on a server. (e.g. Setting
                        the server base of an FTP-Account to &quot;/pub/incoming&quot;
                        will result in showing contents from that directory and not from
                        server's root directory)
                    </td>
                </tr>
                <tr>
                    <td>ServerName</td>
                    <td>string</td>
                    <td>contains a server name (e.g. The name of the server to use for
                        a POP3-Account).
                    </td>
                </tr>
                <tr>
                    <td>ServerPort</td>
                    <td>short</td>
                    <td>contains a numeric server port.</td>
                </tr>
                <tr>
                    <td>Size</td>
                    <td>hyper</td>
                    <td>contains the size (usually in bytes) of an object.</td>
                </tr>
                <tr>
                    <td>SizeLimit</td>
                    <td>hyper</td>
                    <td>contains a size limit for an object. (e.g. One may specify the
                        maximum size of the HTTP-Cache)
                    </td>
                </tr>
                <tr>
                    <td>SubscribedCount</td>
                    <td>long</td>
                    <td>contains the count of subscribed contents of a folder.</td>
                </tr>
                <tr>
                    <td>SynchronizePolicy</td>
                    <td><type>SynchronizePolicy</type></td>
                    <td>contains the policy to use when synchronizing two objects.</td>
                </tr>
                <tr>
                    <td>TargetFrames</td>
                    <td>string</td>
                    <td>contains information about the target frame to use when displaying
                        an object.
                        <p>The value is a string containing three tokens, separated by &quot;;&quot;
                        (A semicolon):<br/>
                            <dl>
                                <dt>1st token</dt>
                                    <dd>Behavior on &quot;select&quot; ( single click )</dd>
                                <dt>2nd token</dt>
                                    <dd>Behavior on &quot;open&quot;   ( double click )</dd>
                                <dt>3rd token</dt>
                                    <dd>Behavior on &quot;open in new task&quot; ( double click + CTRL key )</dd>
                            </dl>
                         </p>
                        <p> Each token may contain the following values:<br/>
                            <dl>
                            <dt>&quot;_beamer&quot;</dt>
                                <dd>Show in &quot;Beamer&quot;</dd>
                            <dt>&quot;_top&quot;</dt>
                                <dd>Show in current frame (replaces old)</dd>
                            <dt>&quot;_blank&quot;</dt>
                                <dd>Show in new task</dd>
                            </dl>
                        </p>
                    </td>
                </tr>
                <tr>
                    <td>TargetURL</td>
                    <td>string</td>
                    <td>for contents that are links to other contents, contains the URL of
        the target content</td>
                </tr>
                <tr>
                    <td>TimeLimitStore</td>
                    <td>short</td>
                    <td>contains the value to use if the property "IsTimeLimitedStore" is set.</td>
                </tr>
                <tr>
                    <td>UserName</td>
                    <td>string</td>
                    <td>contains a user name. (e.g. the user name needed to access a
        POP3-Account)</td>
                </tr>
                <tr>
                    <td>VerificationMode</td>
                    <td><type>VerificationMode</type> </td>
                    <td>describes a verification policy.</td>
                </tr>
            </tbody>
        </table>
     */
    interface com::sun::star::ucb::XCommandProcessor;


    /** is an enhanced version of <type>XCommandProcessor</type> that has an
        additional method for releasing command identifiers obtained via
        <member>XCommandProcessor::createCommandIdentifier</member> to avoid
        resource leaks. For a detailed description of the problem refer to
        <member>XCommandProcessor2::releaseCommandIdentifier</member>.

        <p>Where many existing <type>Content</type> implementations do not
        (yet), every new implementation should support this interface.
     */
    [optional] interface com::sun::star::ucb::XCommandProcessor2;


    /** notifies changes of property values to listeners registered for
        those properties.

        <p>This interface is required.
     */
    interface com::sun::star::beans::XPropertiesChangeNotifier;


    /** can be used to add new properties to the content and to remove
        properties from the content dynamically.

        <p>Note that the dynamic properties must be kept persistent. The
        service <type>Store</type> (UCB persistence service) may be used to
        implement this.

        <p><b>Important:</b> The implementation of
        <method scope="com::sun::star::beans">XPropertyContainer::addProperty</method>
        must at least support adding properties of the following basic data
        types:

        <p>
            <ul>
                <li>boolean
                <li>char
                <li>byte
                <li>string
                <li>short
                <li>long
                <li>hyper
                <li>float
                <li>double
            </ul>
        </p>

        <p>If a property with an unsupported type shall be added a
        <type scope="com::sun::star::beans">IllegalTypeException</type> must
        be raised.

        @deprecated
            <p>This interface is <b>deprecated</b>, because a
            <type>ContentProvider</type> might need a
            <type>XCommandEnvironment</type> to perform the tasks of adding and
            removing properties. New implementations should implement the
            respective commands "addProperty" and "removeProperty" instead.
     */
    interface com::sun::star::beans::XPropertyContainer;


    /** can be used to notify properties removed from or added to the
        content's property set.

        <p>This interface must be implemented, if the implementation can
        dynamically change it's property set ( e.g. because it implements
        the interface
        <type scope="com::sun::star::beans">XPropertyContainer</type>. )
     */
    [optional] interface com::sun::star::beans::XPropertySetInfoChangeNotifier;


    /** can be used to notify commands removed from or added to the
        content's command set.

        <p>This interface must be implemented, if the implementation can
        dynamically change it's command set ( e.g. because the set of
        available commands depends on the value of a property of the
        content ).

        <p>This interface is optional.
     */
    [optional] interface com::sun::star::ucb::XCommandInfoChangeNotifier;


    /** creates new contents (i.e. creates a new folder in another folder
        somewhere in the local file system).

        <p>A content is "new", if it does not physically exist before creating
        it using this interface.

        <p>This interface is optional. It should be implemented by contents
        which shall be able to create new objects.

        @deprecated

        <p>This interface is <b>deprecated</b>. Use property
        "CreatableContentsInfo" and command "createNewContent" instead.
     */
    [optional] interface com::sun::star::ucb::XContentCreator;


    /** provides access to the parent content of this content.

        <p>The object returned by the implementation of the method
        <member scope="com::sun::star::container">XChild::getParent()</member>
        must implement the service <type>Content</type>. If the content is a
        root object, an empty interface may be returned.

        <p>This interface must be implemented by a content which is a (logical)
        child of a content.
     */
    [optional] interface com::sun::star::container::XChild;
};

}; }; }; };

#endif