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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_RESULTSETHELPER_HXX
+#define INCLUDED_UCBHELPER_RESULTSETHELPER_HXX
+
+#include <mutex>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/ucb/XDynamicResultSet.hpp>
+#include <com/sun/star/ucb/OpenCommandArgument2.hpp>
+#include <comphelper/interfacecontainer4.hxx>
+#include <cppuhelper/implbase.hxx>
+#include <ucbhelper/ucbhelperdllapi.h>
+
+namespace com::sun::star::uno { class XComponentContext; }
+
+namespace cppu {
+ class OInterfaceContainerHelper;
+}
+
+namespace ucbhelper {
+
+
+inline constexpr OUString DYNAMICRESULTSET_SERVICE_NAME = u"com.sun.star.ucb.DynamicResultSet"_ustr;
+
+
+/**
+ * This is an abstract base class for implementations of the service
+ * com.sun.star.ucb.DynamicResultSet, which is the result of the command
+ * "open" executed at a UCB folder content.
+ *
+ * Features of the base class implementation:
+ * - standard interfaces ( XInterface, XTypeProvider, XServiceInfo )
+ * - all required interfaces for service css::ucb::DynamicResultSet
+ */
+class UCBHELPER_DLLPUBLIC ResultSetImplHelper :
+ public cppu::WeakImplHelper<
+ css::lang::XServiceInfo,
+ css::ucb::XDynamicResultSet>
+{
+ comphelper::OInterfaceContainerHelper4<css::lang::XEventListener> m_aDisposeEventListeners;
+ bool m_bStatic;
+ bool m_bInitDone;
+
+protected:
+ std::mutex m_aMutex;
+ css::ucb::OpenCommandArgument2 m_aCommand;
+ css::uno::Reference< css::uno::XComponentContext > m_xContext;
+ // Resultset #1
+ css::uno::Reference< css::sdbc::XResultSet > m_xResultSet1;
+ // Resultset #2
+ css::uno::Reference< css::sdbc::XResultSet > m_xResultSet2;
+ // Resultset changes listener.
+ css::uno::Reference< css::ucb::XDynamicResultSetListener > m_xListener;
+
+private:
+ UCBHELPER_DLLPRIVATE void init( bool bStatic );
+
+ /**
+ * Your implementation of this method has to fill the protected member
+ * m_xResultSet1. This resultset must implement a complete static
+ * resultset ( service com.sun.star.ucb.ContentResultSet ). This method
+ * will be called at most once in the life of your implementation object.
+ * After this method was called, the type of this resultset will be
+ * "static". There is no way to change the type afterwards.
+ * If this method gets called the client wants to use your resultset
+ * exclusively statically. You may deploy this factum to optimize your
+ * implementation (i.e. "switch off" all changes detection code in
+ * your implementation).
+ * Note that you may use the class ucb::ResultSet to implement the
+ * static resultset, that is required here.
+ */
+ UCBHELPER_DLLPRIVATE virtual void initStatic() = 0;
+
+ /**
+ * Your implementation of this method has to fill the protected members
+ * m_xResultSet1 and m_xResultSet2 of this base class. Each of these
+ * resultsets must implement a complete static resultset
+ * ( service com.sun.star.ucb.ContentResultSet ). This method will be
+ * called at most once in the life of your implementation object.
+ * After this method was called, the type of this resultset will be
+ * "dynamic". There is no way to change the type afterwards.
+ * If this method gets called the client wants to use your resultset
+ * exclusively dynamically. This means, it is interested in getting
+ * notifications on changes of data of the resultset contents. ( These
+ * changes are to propagate by your implementation throw the member
+ * m_xListener of this base class ).
+ * If your implementation cannot detect changes of relevant data, you
+ * may fill m_xResultSet1 and m_xResultSet2 with the same static resultset
+ * implementation object. This normally will be the same instance you put
+ * into m_xResultSet1 when initStatic() is called.
+ */
+ UCBHELPER_DLLPRIVATE virtual void initDynamic() = 0;
+
+public:
+ /**
+ * Constructor.
+ *
+ * @param rxContext is a Service Manager.
+ * @param rCommand is the parameter for the open command that produces
+ * this resultset.
+ */
+ ResultSetImplHelper(
+ css::uno::Reference<
+ css::uno::XComponentContext > xContext,
+ css::ucb::OpenCommandArgument2 aCommand );
+
+ /**
+ * Destructor.
+ */
+ virtual ~ResultSetImplHelper() override;
+
+ // XServiceInfo
+ virtual OUString SAL_CALL getImplementationName() override;
+ virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
+ virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+
+ // XComponent ( base class of XDynamicResultSet )
+ virtual void SAL_CALL
+ dispose() override;
+ virtual void SAL_CALL
+ addEventListener( const css::uno::Reference< css::lang::XEventListener >& Listener ) override;
+ virtual void SAL_CALL
+ removeEventListener( const css::uno::Reference< css::lang::XEventListener >& Listener ) override;
+
+ // XDynamicResultSet
+ virtual css::uno::Reference< css::sdbc::XResultSet > SAL_CALL
+ getStaticResultSet() override;
+ virtual void SAL_CALL
+ setListener( const css::uno::Reference< css::ucb::XDynamicResultSetListener >& Listener ) override;
+ virtual void SAL_CALL
+ connectToCache( const css::uno::Reference< css::ucb::XDynamicResultSet > & xCache ) override;
+
+ /**
+ * The implementation of this method always returns 0. Override this
+ * method, if necessary.
+ */
+ virtual sal_Int16 SAL_CALL
+ getCapabilities() override;
+
+};
+
+}
+
+#endif /* ! INCLUDED_UCBHELPER_RESULTSETHELPER_HXX */
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */