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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef INCLUDED_UCBHELPER_RESULTSET_HXX
#define INCLUDED_UCBHELPER_RESULTSET_HXX
#include <com/sun/star/lang/XTypeProvider.hpp>
#include <com/sun/star/lang/XServiceInfo.hpp>
#include <com/sun/star/lang/XComponent.hpp>
#include <com/sun/star/ucb/ResultSetException.hpp>
#include <com/sun/star/ucb/XCommandEnvironment.hpp>
#include <com/sun/star/ucb/XContentAccess.hpp>
#include <com/sun/star/sdbc/XResultSet.hpp>
#include <com/sun/star/sdbc/XResultSetMetaDataSupplier.hpp>
#include <com/sun/star/sdbc/XRow.hpp>
#include <com/sun/star/sdbc/XCloseable.hpp>
#include <com/sun/star/beans/XPropertySet.hpp>
#include "rtl/ref.hxx"
#include "salhelper/simplereferenceobject.hxx"
#include <cppuhelper/weak.hxx>
#include <ucbhelper/macros.hxx>
#include "ucbhelper/ucbhelperdllapi.h"
namespace ucbhelper {
//=========================================================================
#define RESULTSET_SERVICE_NAME "com.sun.star.ucb.ContentResultSet"
//=========================================================================
class ResultSetDataSupplier;
struct ResultSet_Impl;
/**
* This is an implementation of the service com.sun.star.ucb.ContentResultSet.
* It can be used to implement the method XDynamicResultSet::getStaticResultSet,
* which needs to be implemented for instance to implement the command "open"
* at folder objects. This class uses a user supplied ResultSetDataSupplier
* object to request data on demand.
*
* @see ResultSetDataSupplier
*/
class UCBHELPER_DLLPUBLIC ResultSet :
public cppu::OWeakObject,
public com::sun::star::lang::XTypeProvider,
public com::sun::star::lang::XServiceInfo,
public com::sun::star::lang::XComponent,
public com::sun::star::ucb::XContentAccess,
public com::sun::star::sdbc::XResultSet,
public com::sun::star::sdbc::XResultSetMetaDataSupplier,
public com::sun::star::sdbc::XRow,
public com::sun::star::sdbc::XCloseable,
public com::sun::star::beans::XPropertySet
{
ResultSet_Impl* m_pImpl;
public:
/**
* Construction.
*
* @param rxSMgr is a Service Manager.
* @param rProperties is a sequence of properties for that the resultset
* shall be able to obtain the values.
* @param rDataSupplier is a supplier for the resultset data.
*/
ResultSet(
const com::sun::star::uno::Reference<
com::sun::star::uno::XComponentContext >& rxContext,
const com::sun::star::uno::Sequence<
com::sun::star::beans::Property >& rProperties,
const rtl::Reference< ResultSetDataSupplier >& rDataSupplier );
/**
* Construction.
*
* @param rxSMgr is a Service Manager.
* @param rProperties is a sequence of properties for that the resultset
* shall be able to obtain the values.
* @param rDataSupplier is a supplier for the resultset data.
* @param rxEnv is the environment for interactions, progress propagation,
* ...
*/
ResultSet(
const com::sun::star::uno::Reference<
com::sun::star::uno::XComponentContext >& rxContext,
const com::sun::star::uno::Sequence<
com::sun::star::beans::Property >& rProperties,
const rtl::Reference< ResultSetDataSupplier >& rDataSupplier,
const com::sun::star::uno::Reference<
com::sun::star::ucb::XCommandEnvironment >& rxEnv );
virtual ~ResultSet();
// XInterface
XINTERFACE_DECL()
// XTypeProvider
XTYPEPROVIDER_DECL()
// XServiceInfo
XSERVICEINFO_NOFACTORY_DECL()
// XComponent
virtual void SAL_CALL
dispose()
throw( com::sun::star::uno::RuntimeException );
virtual void SAL_CALL
addEventListener( const com::sun::star::uno::Reference<
com::sun::star::lang::XEventListener >& Listener )
throw( com::sun::star::uno::RuntimeException );
virtual void SAL_CALL
removeEventListener( const com::sun::star::uno::Reference<
com::sun::star::lang::XEventListener >& Listener )
throw( com::sun::star::uno::RuntimeException );
// XContentAccess
virtual OUString SAL_CALL
queryContentIdentifierString()
throw( com::sun::star::uno::RuntimeException );
virtual com::sun::star::uno::Reference<
com::sun::star::ucb::XContentIdentifier > SAL_CALL
queryContentIdentifier()
throw( com::sun::star::uno::RuntimeException );
virtual com::sun::star::uno::Reference<
com::sun::star::ucb::XContent > SAL_CALL
queryContent()
throw( com::sun::star::uno::RuntimeException );
// XResultSetMetaDataSupplier
virtual com::sun::star::uno::Reference<
com::sun::star::sdbc::XResultSetMetaData > SAL_CALL
getMetaData()
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
// XResultSet
virtual sal_Bool SAL_CALL
next()
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual sal_Bool SAL_CALL
isBeforeFirst()
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual sal_Bool SAL_CALL
isAfterLast()
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual sal_Bool SAL_CALL
isFirst()
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual sal_Bool SAL_CALL
isLast()
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual void SAL_CALL
beforeFirst()
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual void SAL_CALL
afterLast()
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual sal_Bool SAL_CALL
first()
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual sal_Bool SAL_CALL
last()
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual sal_Int32 SAL_CALL
getRow()
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual sal_Bool SAL_CALL
absolute( sal_Int32 row )
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual sal_Bool SAL_CALL
relative( sal_Int32 rows )
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual sal_Bool SAL_CALL
previous()
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual void SAL_CALL
refreshRow()
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual sal_Bool SAL_CALL
rowUpdated()
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual sal_Bool SAL_CALL
rowInserted()
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual sal_Bool SAL_CALL
rowDeleted()
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual com::sun::star::uno::Reference<
com::sun::star::uno::XInterface > SAL_CALL
getStatement()
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
// XRow
virtual sal_Bool SAL_CALL
wasNull()
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual OUString SAL_CALL
getString( sal_Int32 columnIndex )
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual sal_Bool SAL_CALL
getBoolean( sal_Int32 columnIndex )
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual sal_Int8 SAL_CALL
getByte( sal_Int32 columnIndex )
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual sal_Int16 SAL_CALL
getShort( sal_Int32 columnIndex )
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual sal_Int32 SAL_CALL
getInt( sal_Int32 columnIndex )
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual sal_Int64 SAL_CALL
getLong( sal_Int32 columnIndex )
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual float SAL_CALL
getFloat( sal_Int32 columnIndex )
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual double SAL_CALL
getDouble( sal_Int32 columnIndex )
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual com::sun::star::uno::Sequence< sal_Int8 > SAL_CALL
getBytes( sal_Int32 columnIndex )
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual com::sun::star::util::Date SAL_CALL
getDate( sal_Int32 columnIndex )
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual com::sun::star::util::Time SAL_CALL
getTime( sal_Int32 columnIndex )
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual com::sun::star::util::DateTime SAL_CALL
getTimestamp( sal_Int32 columnIndex )
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual com::sun::star::uno::Reference<
com::sun::star::io::XInputStream > SAL_CALL
getBinaryStream( sal_Int32 columnIndex )
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual com::sun::star::uno::Reference<
com::sun::star::io::XInputStream > SAL_CALL
getCharacterStream( sal_Int32 columnIndex )
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual com::sun::star::uno::Any SAL_CALL
getObject( sal_Int32 columnIndex,
const com::sun::star::uno::Reference<
com::sun::star::container::XNameAccess >& typeMap )
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual com::sun::star::uno::Reference<
com::sun::star::sdbc::XRef > SAL_CALL
getRef( sal_Int32 columnIndex )
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual com::sun::star::uno::Reference<
com::sun::star::sdbc::XBlob > SAL_CALL
getBlob( sal_Int32 columnIndex )
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual com::sun::star::uno::Reference<
com::sun::star::sdbc::XClob > SAL_CALL
getClob( sal_Int32 columnIndex )
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
virtual com::sun::star::uno::Reference<
com::sun::star::sdbc::XArray > SAL_CALL
getArray( sal_Int32 columnIndex )
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
// XCloseable
virtual void SAL_CALL
close()
throw( com::sun::star::sdbc::SQLException,
com::sun::star::uno::RuntimeException );
// XPropertySet
virtual com::sun::star::uno::Reference<
com::sun::star::beans::XPropertySetInfo > SAL_CALL
getPropertySetInfo()
throw( com::sun::star::uno::RuntimeException );
virtual void SAL_CALL
setPropertyValue( const OUString& aPropertyName,
const com::sun::star::uno::Any& aValue )
throw( com::sun::star::beans::UnknownPropertyException,
com::sun::star::beans::PropertyVetoException,
com::sun::star::lang::IllegalArgumentException,
com::sun::star::lang::WrappedTargetException,
com::sun::star::uno::RuntimeException );
virtual com::sun::star::uno::Any SAL_CALL
getPropertyValue( const OUString& PropertyName )
throw( com::sun::star::beans::UnknownPropertyException,
com::sun::star::lang::WrappedTargetException,
com::sun::star::uno::RuntimeException );
virtual void SAL_CALL
addPropertyChangeListener( const OUString& aPropertyName,
const com::sun::star::uno::Reference<
com::sun::star::beans::XPropertyChangeListener >& xListener )
throw( com::sun::star::beans::UnknownPropertyException,
com::sun::star::lang::WrappedTargetException,
com::sun::star::uno::RuntimeException );
virtual void SAL_CALL
removePropertyChangeListener( const OUString& aPropertyName,
const com::sun::star::uno::Reference<
com::sun::star::beans::XPropertyChangeListener >& aListener )
throw( com::sun::star::beans::UnknownPropertyException,
com::sun::star::lang::WrappedTargetException,
com::sun::star::uno::RuntimeException );
virtual void SAL_CALL
addVetoableChangeListener( const OUString& PropertyName,
const com::sun::star::uno::Reference<
com::sun::star::beans::XVetoableChangeListener >& aListener )
throw( com::sun::star::beans::UnknownPropertyException,
com::sun::star::lang::WrappedTargetException,
com::sun::star::uno::RuntimeException );
virtual void SAL_CALL
removeVetoableChangeListener( const OUString& PropertyName,
const com::sun::star::uno::Reference<
com::sun::star::beans::XVetoableChangeListener >& aListener )
throw( com::sun::star::beans::UnknownPropertyException,
com::sun::star::lang::WrappedTargetException,
com::sun::star::uno::RuntimeException );
/////////////////////////////////////////////////////////////////////
// Non-interface methods.
/////////////////////////////////////////////////////////////////////
/**
* This method propagates property value changes to all registered
* listeners.
*
* @param rEvt is a property change event.
*/
void propertyChanged(
const com::sun::star::beans::PropertyChangeEvent& rEvt );
/**
* This method should be called by the data supplier for the result set
* to indicate that there were new data obtained from the data source.
*
* @param nOld is the old count of rows; must be non-negative.
* @param nnew is the new count of rows; must be non-negative.
*/
void rowCountChanged( sal_uInt32 nOld, sal_uInt32 nNew );
/**
* This method should be called by the data supplier for the result set
* to indicate that there were all rows obtained from the data source.
*/
void rowCountFinal();
/**
* This method returns a sequence containing all properties ( not the
* values! ) of the result set.
*
* @return a sequence of properties.
*/
const com::sun::star::uno::Sequence< com::sun::star::beans::Property >&
getProperties();
/**
* This method returns the environment to use for interactions, progress
* propagation, ... It can by empty.
*
* @return an environment or an empty reference.
*/
const com::sun::star::uno::Reference<
com::sun::star::ucb::XCommandEnvironment >&
getEnvironment();
};
//=========================================================================
/**
* This is the base class for an object that supplies data to a result set
*
* @see ResultSet
*/
class ResultSetDataSupplier : public salhelper::SimpleReferenceObject
{
friend class ResultSet;
// No ref, otherwise we get a cyclic reference between supplier and set!
// Will be set from ResultSet ctor.
ResultSet* m_pResultSet;
public:
ResultSetDataSupplier() : m_pResultSet( 0 ) {}
/**
* This method returns the resultset this supplier belongs to.
*
* @return the resultset for that the supplier supplies data.
*/
rtl::Reference< ResultSet > getResultSet() const { return m_pResultSet; }
/**
* This method returns the identifier string of the content at the
* specified index.
*
* @param nIndex is the zero-based index within the logical data array
* of the supplier; must be non-negative.
* @return the content's identifier string.
*/
virtual OUString queryContentIdentifierString( sal_uInt32 nIndex ) = 0;
/**
* This method returns the identifier of the content at the specified index.
*
* @param nIndex is the zero-based index within the logical data array
* of the supplier; must be non-negative.
* @return the content's identifier.
*/
virtual com::sun::star::uno::Reference<
com::sun::star::ucb::XContentIdentifier >
queryContentIdentifier( sal_uInt32 nIndex ) = 0;
/**
* This method returns the content at the specified index.
*
* @param nIndex is the zero-based index within the logical data array
* of the supplier; must be non-negative.
* @return the content.
*/
virtual com::sun::star::uno::Reference< com::sun::star::ucb::XContent >
queryContent( sal_uInt32 nIndex ) = 0;
/**
* This method returns whether there is a content at the specified index.
*
* @param nIndex is the zero-based index within the logical data array
* of the supplier; must be non-negative.
* @return true, if there is a content at the given index.
*/
virtual sal_Bool getResult( sal_uInt32 nIndex ) = 0;
/**
* This method returns the total count of objects in the logical data array
* of the supplier. The implementation of this method may be very
* "expensive", because it can be necessary to obtain all data in order
* to determine the count. Therefor the ResultSet implementation calls
* it very seldom.
*
* @return the total count of objects; will always be non-negative.
*/
virtual sal_uInt32 totalCount() = 0;
/**
* This method returns the count of objects obtained so far. There is no
* for the implemetation to obtain all objects at once. It can obtain
* all data on demand.
*
* The implementation should call m_pResultSet->rowCountChanged(...)
* everytime it has inserted a new entry in its logical result array.
*
* @return the count of objects obtained so far; will always be
* non-negative.
*/
virtual sal_uInt32 currentCount() = 0;
/**
* This method returns whether the value returned by currentCount() is
* "final". This is the case, if that there was all data obtained by the
* supplier and the current count won't increase any more.
*
* The implementation should call m_pResultSet->rowCountFinal(...) if
* it has inserted all entries in its logical result array.
*
* @return true, if the value returned by currentCount() won't change
anymore.
*/
virtual sal_Bool isCountFinal() = 0;
/**
* This method returns an object for accessing the property values at
* the specified index. The implementation may use the helper class
* ucb::PropertyValueSet to provide the return value.
*
* @param nIndex is the zero-based index within the logical data array
* of the supplier.
* @return the object for accessing the property values.
*/
virtual com::sun::star::uno::Reference< com::sun::star::sdbc::XRow >
queryPropertyValues( sal_uInt32 nIndex ) = 0;
/**
* This method is called to instruct the supplier to release the (possibly
* presnt) property values at the given index.
*
* @param nIndex is the zero-based index within the logical data array
* of the supplier.
*/
virtual void releasePropertyValues( sal_uInt32 nIndex ) = 0;
/**
* This method will be called by the resultset implementation in order
* to instruct the data supplier to release all resources it has
* allocated so far. In case the supplier is collecting data
* asynchronously, that process must be stopped.
*/
virtual void close() = 0;
/**
* This method will be called by the resultset implementation in order
* check, whether an error has occurred while collecting data. The
* implementation of this method must throw an exception in that case.
*
* Note: An exception thrown to indicate an error must always be thrown
* by the thread that created the data supplier. If the supplier collects
* data asynchronously ( i.e. in a separate thread ) and an error
* occurs, throwing of the appropriate exception must be deferred
* until validate() is called by the ResultSet implementation from
* inside the main thread.
* In case data are obtained synchronously, the ResultSetException can
* be thrown directly.
*
* @exception ResultSetException thrown, if an error has occurred
*/
virtual void validate()
throw( com::sun::star::ucb::ResultSetException ) = 0;
};
}
#endif /* ! INCLUDED_UCBHELPER_RESULTSET_HXX */
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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