LCOV - code coverage report
Current view: top level - include/ucbhelper - resultset.hxx (source / functions) Hit Total Coverage
Test: commit e02a6cb2c3e2b23b203b422e4e0680877f232636 Lines: 0 3 0.0 %
Date: 2014-04-14 Functions: 0 4 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #ifndef INCLUDED_UCBHELPER_RESULTSET_HXX
      21             : #define INCLUDED_UCBHELPER_RESULTSET_HXX
      22             : 
      23             : #include <com/sun/star/lang/XTypeProvider.hpp>
      24             : #include <com/sun/star/lang/XServiceInfo.hpp>
      25             : #include <com/sun/star/lang/XComponent.hpp>
      26             : #include <com/sun/star/ucb/ResultSetException.hpp>
      27             : #include <com/sun/star/ucb/XCommandEnvironment.hpp>
      28             : #include <com/sun/star/ucb/XContentAccess.hpp>
      29             : #include <com/sun/star/sdbc/XResultSet.hpp>
      30             : #include <com/sun/star/sdbc/XResultSetMetaDataSupplier.hpp>
      31             : #include <com/sun/star/sdbc/XRow.hpp>
      32             : #include <com/sun/star/sdbc/XCloseable.hpp>
      33             : #include <com/sun/star/beans/XPropertySet.hpp>
      34             : 
      35             : #include <rtl/ref.hxx>
      36             : #include <salhelper/simplereferenceobject.hxx>
      37             : #include <cppuhelper/weak.hxx>
      38             : #include <ucbhelper/macros.hxx>
      39             : #include <ucbhelper/ucbhelperdllapi.h>
      40             : 
      41             : namespace ucbhelper {
      42             : 
      43             : 
      44             : 
      45             : #define RESULTSET_SERVICE_NAME  "com.sun.star.ucb.ContentResultSet"
      46             : 
      47             : 
      48             : 
      49             : class ResultSetDataSupplier;
      50             : struct ResultSet_Impl;
      51             : 
      52             : /**
      53             :  * This is an implementation of the service com.sun.star.ucb.ContentResultSet.
      54             :  * It can be used to implement the method XDynamicResultSet::getStaticResultSet,
      55             :  * which needs to be implemented for instance to implement the command "open"
      56             :  * at folder objects. This class uses a user supplied ResultSetDataSupplier
      57             :  * object to request data on demand.
      58             :  *
      59             :  * @see ResultSetDataSupplier
      60             :  */
      61             : class UCBHELPER_DLLPUBLIC ResultSet :
      62             :                 public cppu::OWeakObject,
      63             :                 public com::sun::star::lang::XTypeProvider,
      64             :                 public com::sun::star::lang::XServiceInfo,
      65             :                 public com::sun::star::lang::XComponent,
      66             :                 public com::sun::star::ucb::XContentAccess,
      67             :                 public com::sun::star::sdbc::XResultSet,
      68             :                 public com::sun::star::sdbc::XResultSetMetaDataSupplier,
      69             :                 public com::sun::star::sdbc::XRow,
      70             :                 public com::sun::star::sdbc::XCloseable,
      71             :                 public com::sun::star::beans::XPropertySet
      72             : {
      73             :     ResultSet_Impl* m_pImpl;
      74             : 
      75             : public:
      76             :     /**
      77             :       * Construction.
      78             :       *
      79             :       * @param rxSMgr is a Service Manager.
      80             :       * @param rProperties is a sequence of properties for that the resultset
      81             :       *        shall be able to obtain the values.
      82             :       * @param rDataSupplier is a supplier for the resultset data.
      83             :       */
      84             :     ResultSet(
      85             :             const com::sun::star::uno::Reference<
      86             :                 com::sun::star::uno::XComponentContext >& rxContext,
      87             :             const com::sun::star::uno::Sequence<
      88             :                 com::sun::star::beans::Property >& rProperties,
      89             :             const rtl::Reference< ResultSetDataSupplier >& rDataSupplier );
      90             :     /**
      91             :       * Construction.
      92             :       *
      93             :       * @param rxSMgr is a Service Manager.
      94             :       * @param rProperties is a sequence of properties for that the resultset
      95             :       *        shall be able to obtain the values.
      96             :       * @param rDataSupplier is a supplier for the resultset data.
      97             :       * @param rxEnv is the environment for interactions, progress propagation,
      98             :       *        ...
      99             :       */
     100             :     ResultSet(
     101             :             const com::sun::star::uno::Reference<
     102             :                 com::sun::star::uno::XComponentContext >& rxContext,
     103             :             const com::sun::star::uno::Sequence<
     104             :                 com::sun::star::beans::Property >& rProperties,
     105             :             const rtl::Reference< ResultSetDataSupplier >& rDataSupplier,
     106             :             const com::sun::star::uno::Reference<
     107             :                 com::sun::star::ucb::XCommandEnvironment >& rxEnv );
     108             :     virtual ~ResultSet();
     109             : 
     110             :     // XInterface
     111             :     virtual css::uno::Any SAL_CALL queryInterface( const css::uno::Type & rType )
     112             :         throw( css::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     113             :     virtual void SAL_CALL acquire()
     114             :         throw() SAL_OVERRIDE;
     115             :     virtual void SAL_CALL release()
     116             :         throw() SAL_OVERRIDE;
     117             : 
     118             :     // XTypeProvider
     119             :     virtual com::sun::star::uno::Sequence< sal_Int8 > SAL_CALL
     120             :     getImplementationId()
     121             :         throw( com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     122             :     virtual com::sun::star::uno::Sequence< com::sun::star::uno::Type > SAL_CALL
     123             :     getTypes()
     124             :         throw( com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     125             : 
     126             :     // XServiceInfo
     127             :     virtual OUString SAL_CALL getImplementationName()
     128             :         throw( css::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     129             :     virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName )
     130             :         throw( css::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     131             :     virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames()
     132             :         throw( css::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     133             : 
     134             :     static OUString getImplementationName_Static();
     135             :     static css::uno::Sequence< OUString > getSupportedServiceNames_Static();
     136             : 
     137             :     // XComponent
     138             :     virtual void SAL_CALL
     139             :     dispose()
     140             :         throw( com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     141             :     virtual void SAL_CALL
     142             :     addEventListener( const com::sun::star::uno::Reference<
     143             :                             com::sun::star::lang::XEventListener >& Listener )
     144             :         throw( com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     145             :     virtual void SAL_CALL
     146             :     removeEventListener( const com::sun::star::uno::Reference<
     147             :                             com::sun::star::lang::XEventListener >& Listener )
     148             :         throw( com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     149             : 
     150             :     // XContentAccess
     151             :     virtual OUString SAL_CALL
     152             :     queryContentIdentifierString()
     153             :         throw( com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     154             :     virtual com::sun::star::uno::Reference<
     155             :                 com::sun::star::ucb::XContentIdentifier > SAL_CALL
     156             :     queryContentIdentifier()
     157             :         throw( com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     158             :     virtual com::sun::star::uno::Reference<
     159             :                 com::sun::star::ucb::XContent > SAL_CALL
     160             :     queryContent()
     161             :         throw( com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     162             : 
     163             :     // XResultSetMetaDataSupplier
     164             :     virtual com::sun::star::uno::Reference<
     165             :                 com::sun::star::sdbc::XResultSetMetaData > SAL_CALL
     166             :     getMetaData()
     167             :         throw( com::sun::star::sdbc::SQLException,
     168             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     169             : 
     170             :     // XResultSet
     171             :     virtual sal_Bool SAL_CALL
     172             :     next()
     173             :         throw( com::sun::star::sdbc::SQLException,
     174             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     175             :     virtual sal_Bool SAL_CALL
     176             :     isBeforeFirst()
     177             :         throw( com::sun::star::sdbc::SQLException,
     178             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     179             :     virtual sal_Bool SAL_CALL
     180             :     isAfterLast()
     181             :         throw( com::sun::star::sdbc::SQLException,
     182             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     183             :     virtual sal_Bool SAL_CALL
     184             :     isFirst()
     185             :         throw( com::sun::star::sdbc::SQLException,
     186             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     187             :     virtual sal_Bool SAL_CALL
     188             :     isLast()
     189             :         throw( com::sun::star::sdbc::SQLException,
     190             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     191             :     virtual void SAL_CALL
     192             :     beforeFirst()
     193             :         throw( com::sun::star::sdbc::SQLException,
     194             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     195             :     virtual void SAL_CALL
     196             :     afterLast()
     197             :         throw( com::sun::star::sdbc::SQLException,
     198             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     199             :     virtual sal_Bool SAL_CALL
     200             :     first()
     201             :         throw( com::sun::star::sdbc::SQLException,
     202             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     203             :     virtual sal_Bool SAL_CALL
     204             :     last()
     205             :         throw( com::sun::star::sdbc::SQLException,
     206             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     207             :     virtual sal_Int32 SAL_CALL
     208             :     getRow()
     209             :         throw( com::sun::star::sdbc::SQLException,
     210             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     211             :     virtual sal_Bool SAL_CALL
     212             :     absolute( sal_Int32 row )
     213             :         throw( com::sun::star::sdbc::SQLException,
     214             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     215             :     virtual sal_Bool SAL_CALL
     216             :     relative( sal_Int32 rows )
     217             :         throw( com::sun::star::sdbc::SQLException,
     218             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     219             :     virtual sal_Bool SAL_CALL
     220             :     previous()
     221             :         throw( com::sun::star::sdbc::SQLException,
     222             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     223             :     virtual void SAL_CALL
     224             :     refreshRow()
     225             :         throw( com::sun::star::sdbc::SQLException,
     226             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     227             :     virtual sal_Bool SAL_CALL
     228             :     rowUpdated()
     229             :         throw( com::sun::star::sdbc::SQLException,
     230             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     231             :     virtual sal_Bool SAL_CALL
     232             :     rowInserted()
     233             :         throw( com::sun::star::sdbc::SQLException,
     234             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     235             :     virtual sal_Bool SAL_CALL
     236             :     rowDeleted()
     237             :         throw( com::sun::star::sdbc::SQLException,
     238             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     239             :     virtual com::sun::star::uno::Reference<
     240             :                 com::sun::star::uno::XInterface > SAL_CALL
     241             :     getStatement()
     242             :         throw( com::sun::star::sdbc::SQLException,
     243             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     244             : 
     245             :     // XRow
     246             :     virtual sal_Bool SAL_CALL
     247             :     wasNull()
     248             :         throw( com::sun::star::sdbc::SQLException,
     249             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     250             :     virtual OUString SAL_CALL
     251             :     getString( sal_Int32 columnIndex )
     252             :         throw( com::sun::star::sdbc::SQLException,
     253             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     254             :     virtual sal_Bool SAL_CALL
     255             :     getBoolean( sal_Int32 columnIndex )
     256             :         throw( com::sun::star::sdbc::SQLException,
     257             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     258             :     virtual sal_Int8 SAL_CALL
     259             :     getByte( sal_Int32 columnIndex )
     260             :         throw( com::sun::star::sdbc::SQLException,
     261             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     262             :     virtual sal_Int16 SAL_CALL
     263             :     getShort( sal_Int32 columnIndex )
     264             :         throw( com::sun::star::sdbc::SQLException,
     265             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     266             :     virtual sal_Int32 SAL_CALL
     267             :     getInt( sal_Int32 columnIndex )
     268             :         throw( com::sun::star::sdbc::SQLException,
     269             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     270             :     virtual sal_Int64 SAL_CALL
     271             :     getLong( sal_Int32 columnIndex )
     272             :         throw( com::sun::star::sdbc::SQLException,
     273             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     274             :     virtual float SAL_CALL
     275             :     getFloat( sal_Int32 columnIndex )
     276             :         throw( com::sun::star::sdbc::SQLException,
     277             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     278             :     virtual double SAL_CALL
     279             :     getDouble( sal_Int32 columnIndex )
     280             :         throw( com::sun::star::sdbc::SQLException,
     281             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     282             :     virtual com::sun::star::uno::Sequence< sal_Int8 > SAL_CALL
     283             :     getBytes( sal_Int32 columnIndex )
     284             :         throw( com::sun::star::sdbc::SQLException,
     285             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     286             :     virtual com::sun::star::util::Date SAL_CALL
     287             :     getDate( sal_Int32 columnIndex )
     288             :         throw( com::sun::star::sdbc::SQLException,
     289             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     290             :     virtual com::sun::star::util::Time SAL_CALL
     291             :     getTime( sal_Int32 columnIndex )
     292             :         throw( com::sun::star::sdbc::SQLException,
     293             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     294             :     virtual com::sun::star::util::DateTime SAL_CALL
     295             :     getTimestamp( sal_Int32 columnIndex )
     296             :         throw( com::sun::star::sdbc::SQLException,
     297             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     298             :     virtual com::sun::star::uno::Reference<
     299             :                 com::sun::star::io::XInputStream > SAL_CALL
     300             :     getBinaryStream( sal_Int32 columnIndex )
     301             :         throw( com::sun::star::sdbc::SQLException,
     302             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     303             :     virtual com::sun::star::uno::Reference<
     304             :                 com::sun::star::io::XInputStream > SAL_CALL
     305             :     getCharacterStream( sal_Int32 columnIndex )
     306             :         throw( com::sun::star::sdbc::SQLException,
     307             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     308             :     virtual com::sun::star::uno::Any SAL_CALL
     309             :     getObject( sal_Int32 columnIndex,
     310             :                const com::sun::star::uno::Reference<
     311             :                    com::sun::star::container::XNameAccess >& typeMap )
     312             :         throw( com::sun::star::sdbc::SQLException,
     313             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     314             :     virtual com::sun::star::uno::Reference<
     315             :                 com::sun::star::sdbc::XRef > SAL_CALL
     316             :     getRef( sal_Int32 columnIndex )
     317             :         throw( com::sun::star::sdbc::SQLException,
     318             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     319             :     virtual com::sun::star::uno::Reference<
     320             :                 com::sun::star::sdbc::XBlob > SAL_CALL
     321             :     getBlob( sal_Int32 columnIndex )
     322             :         throw( com::sun::star::sdbc::SQLException,
     323             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     324             :     virtual com::sun::star::uno::Reference<
     325             :                 com::sun::star::sdbc::XClob > SAL_CALL
     326             :     getClob( sal_Int32 columnIndex )
     327             :         throw( com::sun::star::sdbc::SQLException,
     328             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     329             :     virtual com::sun::star::uno::Reference<
     330             :                 com::sun::star::sdbc::XArray > SAL_CALL
     331             :     getArray( sal_Int32 columnIndex )
     332             :         throw( com::sun::star::sdbc::SQLException,
     333             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     334             : 
     335             :     // XCloseable
     336             :     virtual void SAL_CALL
     337             :     close()
     338             :         throw( com::sun::star::sdbc::SQLException,
     339             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     340             : 
     341             :     // XPropertySet
     342             :     virtual com::sun::star::uno::Reference<
     343             :                 com::sun::star::beans::XPropertySetInfo > SAL_CALL
     344             :     getPropertySetInfo()
     345             :         throw( com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     346             :     virtual void SAL_CALL
     347             :     setPropertyValue( const OUString& aPropertyName,
     348             :                       const com::sun::star::uno::Any& aValue )
     349             :         throw( com::sun::star::beans::UnknownPropertyException,
     350             :                com::sun::star::beans::PropertyVetoException,
     351             :                com::sun::star::lang::IllegalArgumentException,
     352             :                com::sun::star::lang::WrappedTargetException,
     353             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     354             :     virtual com::sun::star::uno::Any SAL_CALL
     355             :     getPropertyValue( const OUString& PropertyName )
     356             :         throw( com::sun::star::beans::UnknownPropertyException,
     357             :         com::sun::star::lang::WrappedTargetException,
     358             :         com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     359             :     virtual void SAL_CALL
     360             :     addPropertyChangeListener( const OUString& aPropertyName,
     361             :                                const com::sun::star::uno::Reference<
     362             :                                        com::sun::star::beans::XPropertyChangeListener >& xListener )
     363             :         throw( com::sun::star::beans::UnknownPropertyException,
     364             :                com::sun::star::lang::WrappedTargetException,
     365             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     366             :     virtual void SAL_CALL
     367             :     removePropertyChangeListener( const OUString& aPropertyName,
     368             :                                   const com::sun::star::uno::Reference<
     369             :                                       com::sun::star::beans::XPropertyChangeListener >& aListener )
     370             :         throw( com::sun::star::beans::UnknownPropertyException,
     371             :                com::sun::star::lang::WrappedTargetException,
     372             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     373             :     virtual void SAL_CALL
     374             :     addVetoableChangeListener( const OUString& PropertyName,
     375             :                                const com::sun::star::uno::Reference<
     376             :                                        com::sun::star::beans::XVetoableChangeListener >& aListener )
     377             :         throw( com::sun::star::beans::UnknownPropertyException,
     378             :                com::sun::star::lang::WrappedTargetException,
     379             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     380             :     virtual void SAL_CALL
     381             :     removeVetoableChangeListener( const OUString& PropertyName,
     382             :                                   const com::sun::star::uno::Reference<
     383             :                                       com::sun::star::beans::XVetoableChangeListener >& aListener )
     384             :         throw( com::sun::star::beans::UnknownPropertyException,
     385             :                com::sun::star::lang::WrappedTargetException,
     386             :                com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
     387             : 
     388             : 
     389             :     // Non-interface methods.
     390             : 
     391             : 
     392             :     /**
     393             :       * This method propagates property value changes to all registered
     394             :       * listeners.
     395             :       *
     396             :       * @param rEvt is a property change event.
     397             :       */
     398             :     void propertyChanged(
     399             :                 const com::sun::star::beans::PropertyChangeEvent& rEvt );
     400             : 
     401             :     /**
     402             :       * This method should be called by the data supplier for the result set
     403             :       * to indicate that there were new data obtained from the data source.
     404             :       *
     405             :       * @param nOld is the old count of rows; must be non-negative.
     406             :       * @param nnew is the new count of rows; must be non-negative.
     407             :       */
     408             :     void rowCountChanged( sal_uInt32 nOld, sal_uInt32 nNew );
     409             : 
     410             :     /**
     411             :       * This method should be called by the data supplier for the result set
     412             :       * to indicate that there were all rows obtained from the data source.
     413             :       */
     414             :     void rowCountFinal();
     415             : 
     416             :     /**
     417             :       * This method returns a sequence containing all properties ( not the
     418             :       * values! ) of the result set.
     419             :       *
     420             :       * @return a sequence of properties.
     421             :       */
     422             :     const com::sun::star::uno::Sequence< com::sun::star::beans::Property >&
     423             :     getProperties();
     424             : 
     425             :     /**
     426             :       * This method returns the environment to use for interactions, progress
     427             :       * propagation, ... It can by empty.
     428             :       *
     429             :       * @return an environment or an empty reference.
     430             :       */
     431             :     const com::sun::star::uno::Reference<
     432             :             com::sun::star::ucb::XCommandEnvironment >&
     433             :     getEnvironment();
     434             : };
     435             : 
     436             : 
     437             : 
     438             : /**
     439             :  * This is the base class for an object that supplies data to a result set
     440             :  *
     441             :  * @see ResultSet
     442             :  */
     443           0 : class ResultSetDataSupplier : public salhelper::SimpleReferenceObject
     444             : {
     445             :     friend class ResultSet;
     446             : 
     447             :     // No ref, otherwise we get a cyclic reference between supplier and set!
     448             :     // Will be set from ResultSet ctor.
     449             :     ResultSet* m_pResultSet;
     450             : 
     451             : public:
     452           0 :     ResultSetDataSupplier() : m_pResultSet( 0 ) {}
     453             : 
     454             :     /**
     455             :      * This method returns the resultset this supplier belongs to.
     456             :      *
     457             :      * @return the resultset for that the supplier supplies data.
     458             :      */
     459           0 :     rtl::Reference< ResultSet > getResultSet() const { return m_pResultSet; }
     460             : 
     461             :     /**
     462             :      * This method returns the identifier string of the content at the
     463             :      * specified index.
     464             :      *
     465             :      * @param nIndex is the zero-based index within the logical data array
     466             :      *               of the supplier; must be non-negative.
     467             :      * @return the content's identifier string.
     468             :      */
     469             :     virtual OUString queryContentIdentifierString( sal_uInt32 nIndex ) = 0;
     470             : 
     471             :     /**
     472             :      * This method returns the identifier of the content at the specified index.
     473             :      *
     474             :      * @param nIndex is the zero-based index within the logical data array
     475             :      *               of the supplier; must be non-negative.
     476             :      * @return the content's identifier.
     477             :      */
     478             :     virtual com::sun::star::uno::Reference<
     479             :                 com::sun::star::ucb::XContentIdentifier >
     480             :     queryContentIdentifier( sal_uInt32 nIndex ) = 0;
     481             : 
     482             :     /**
     483             :      * This method returns the content at the specified index.
     484             :      *
     485             :      * @param nIndex is the zero-based index within the logical data array
     486             :      *               of the supplier; must be non-negative.
     487             :      * @return the content.
     488             :      */
     489             :     virtual com::sun::star::uno::Reference< com::sun::star::ucb::XContent >
     490             :     queryContent( sal_uInt32 nIndex ) = 0;
     491             : 
     492             :     /**
     493             :      * This method returns whether there is a content at the specified index.
     494             :      *
     495             :      * @param nIndex is the zero-based index within the logical data array
     496             :      *               of the supplier; must be non-negative.
     497             :      * @return true, if there is a content at the given index.
     498             :      */
     499             :     virtual bool getResult( sal_uInt32 nIndex ) = 0;
     500             : 
     501             :     /**
     502             :      * This method returns the total count of objects in the logical data array
     503             :      * of the supplier. The implementation of this method may be very
     504             :      * "expensive", because it can be necessary to obtain all data in order
     505             :      * to determine the count. Therefor the ResultSet implementation calls
     506             :      * it very seldom.
     507             :      *
     508             :      * @return the total count of objects; will always be non-negative.
     509             :      */
     510             :     virtual sal_uInt32 totalCount() = 0;
     511             : 
     512             :     /**
     513             :      * This method returns the count of objects obtained so far. There is no
     514             :      * for the implementation to obtain all objects at once. It can obtain
     515             :      * all data on demand.
     516             :      *
     517             :      * The implementation should call m_pResultSet->rowCountChanged(...)
     518             :      * everytime it has inserted a new entry in its logical result array.
     519             :      *
     520             :      * @return the count of objects obtained so far; will always be
     521             :      * non-negative.
     522             :      */
     523             :     virtual sal_uInt32 currentCount() = 0;
     524             : 
     525             :     /**
     526             :      * This method returns whether the value returned by currentCount() is
     527             :      * "final". This is the case, if that there was all data obtained by the
     528             :      * supplier and the current count won't increase any more.
     529             :      *
     530             :      * The implementation should call m_pResultSet->rowCountFinal(...) if
     531             :      * it has inserted all entries in its logical result array.
     532             :      *
     533             :      * @return true, if the value returned by currentCount() won't change
     534             :                anymore.
     535             :      */
     536             :     virtual bool isCountFinal() = 0;
     537             : 
     538             :     /**
     539             :      * This method returns an object for accessing the property values at
     540             :      * the specified index. The implementation may use the helper class
     541             :      * ucb::PropertyValueSet to provide the return value.
     542             :      *
     543             :      * @param nIndex is the zero-based index within the logical data array
     544             :      *               of the supplier.
     545             :      * @return the object for accessing the property values.
     546             :      */
     547             :     virtual com::sun::star::uno::Reference< com::sun::star::sdbc::XRow >
     548             :     queryPropertyValues( sal_uInt32 nIndex  ) = 0;
     549             : 
     550             :     /**
     551             :      * This method is called to instruct the supplier to release the (possibly
     552             :      * presnt) property values at the given index.
     553             :      *
     554             :      * @param nIndex is the zero-based index within the logical data array
     555             :      *               of the supplier.
     556             :      */
     557             :     virtual void releasePropertyValues( sal_uInt32 nIndex ) = 0;
     558             : 
     559             :     /**
     560             :      * This method will be called by the resultset implementation in order
     561             :      * to instruct the data supplier to release all resources it has
     562             :      * allocated so far. In case the supplier is collecting data
     563             :      * asynchronously, that process must be stopped.
     564             :      */
     565             :     virtual void close() = 0;
     566             : 
     567             :     /**
     568             :      * This method will be called by the resultset implementation in order
     569             :      * check, whether an error has occurred while collecting data. The
     570             :      * implementation of this method must throw an exception in that case.
     571             :      *
     572             :      * Note: An exception thrown to indicate an error must always be thrown
     573             :      * by the thread that created the data supplier. If the supplier collects
     574             :      * data asynchronously ( i.e. in a separate thread ) and an error
     575             :      * occurs, throwing of the appropriate exception must be deferred
     576             :      * until validate() is called by the ResultSet implementation from
     577             :      * inside the main thread.
     578             :      * In case data are obtained synchronously, the ResultSetException can
     579             :      * be thrown directly.
     580             :      *
     581             :      * @exception ResultSetException thrown, if an error has occurred
     582             :      */
     583             :     virtual void validate()
     584             :         throw( com::sun::star::ucb::ResultSetException ) = 0;
     585             : };
     586             : 
     587             : }
     588             : 
     589             : #endif /* ! INCLUDED_UCBHELPER_RESULTSET_HXX */
     590             : 
     591             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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