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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_CONNECTIVITY_DBMETADATA_HXX
+#define INCLUDED_CONNECTIVITY_DBMETADATA_HXX
+
+#include <com/sun/star/uno/Reference.hxx>
+
+#include <memory>
+#include <connectivity/dbtoolsdllapi.hxx>
+
+namespace com::sun::star::sdbc { class XConnection; }
+namespace com::sun::star::uno { class XComponentContext; }
+
+namespace dbtools
+{
+
+
+ //= DatabaseMetaData
+
+ struct DatabaseMetaData_Impl;
+ /** encapsulates meta data about a database/connection which cannot be obtained
+ from the usual XDatabaseMetaData result set.
+
+ Meta data perhaps isn't really the right term ... Some of the methods
+ in this class involved heuristics, some are just a convenient wrapper
+ around more complex ways to obtain the same information.
+
+ @todo
+ Once CWS dba30 is integrated, we could easily add all the meta data
+ which is part of the "Info" property of a data source.
+ */
+ class OOO_DLLPUBLIC_DBTOOLS DatabaseMetaData
+ {
+ private:
+ ::std::unique_ptr< DatabaseMetaData_Impl > m_pImpl;
+
+ public:
+ DatabaseMetaData();
+ /** constructs a DatabaseMetaData instance
+ @param _rxConnection
+ is the connection whose meta data you're interested in.
+ Note that some of the information provided by this class can only be obtained
+ if this connection denotes an application-level connection, i.e. supports
+ the com.sun.star.sdb.Connection service.
+
+ @throws css::lang::IllegalArgumentException
+ if the given connection is not <NULL/>, but the XDatabaseMetaData provided by it
+ are <NULL/>
+ @throws css::sdbc::SQLException
+ if obtaining the meta data from the connection throws an SQLException
+ @throws css::uno::RuntimeException
+ if obtaining the meta data from the connection throws a RuntimeException
+ */
+ DatabaseMetaData(
+ const css::uno::Reference< css::sdbc::XConnection >& _connection );
+ DatabaseMetaData( const DatabaseMetaData& _copyFrom );
+ DatabaseMetaData& operator=( const DatabaseMetaData& _copyFrom );
+ DatabaseMetaData(DatabaseMetaData&& _copyFrom) noexcept;
+ DatabaseMetaData& operator=(DatabaseMetaData&& _copyFrom) noexcept;
+
+ ~DatabaseMetaData();
+
+ public:
+ /** determines whether or not the instances is based on a valid connection
+
+ As long as this method returns true<TRUE/>, you should expect all other
+ methods throwing an SQLException when called.
+ */
+ bool isConnected() const;
+
+ /** resets the instance so that it's based on a new connection
+ */
+ void reset( const css::uno::Reference< css::sdbc::XConnection >& _connection )
+ {
+ *this = DatabaseMetaData( _connection );
+ }
+
+ /// wraps XDatabaseMetaData::getIdentifierQuoteString
+ const OUString& getIdentifierQuoteString() const;
+
+ /// wraps XDatabaseMetaData::getCatalogSeparator
+ const OUString& getCatalogSeparator() const;
+
+ /** determines whether the database supports sub queries in the FROM part
+ of a SELECT clause are supported.
+ @throws css::sdbc::SQLException
+ with SQLState 08003 (connection does not exist) if the instances was
+ default-constructed and does not have a connection, yet.
+ */
+ bool supportsSubqueriesInFrom() const;
+
+ /** checks whether the database supports primary keys
+
+ Since there's no dedicated API to ask a database for this, a heuristics needs to be applied.
+ First, the <code>PrimaryKeySupport<code> settings of the data source is examined. If it is <TRUE/>
+ or <FALSE/>, then value is returned. If it is <NULL/>, then the database meta data are examined
+ for support of core SQL grammar, and the result is returned. The assumption is that a database/driver
+ which supports core SQL grammar usually also supports primary keys, and vice versa. At least, experience
+ shows this is true most of the time.
+ */
+ bool supportsPrimaryKeys() const;
+
+ /** determines whether names in the database should be restricted to SQL-92 identifiers
+
+ Effectively, this method checks the EnableSQL92Check property of the data source settings,
+ if present.
+ */
+ bool restrictIdentifiersToSQL92() const;
+
+ /** determines whether when generating SQL statements, an AS keyword should be generated
+ before a correlation name.
+
+ E.g., it determines whether <code>SELECT * FROM table AS correlation_name</code> or
+ <code>SELECT * FROM table correlation_name</code> is generated.
+ */
+ bool generateASBeforeCorrelationName() const;
+
+ /** should date time be escaped like '2001-01-01' => {D '2001-01-01' }
+ */
+ bool shouldEscapeDateTime() const;
+
+ /** should named parameters (:foo, [foo]) be replaced by unnamed parameters (?)
+ */
+ bool shouldSubstituteParameterNames() const;
+
+ /** auto increment columns should be automatically used as primary key.
+ */
+ bool isAutoIncrementPrimaryKey() const;
+
+ /** determines the syntax to use for boolean comparison predicates
+
+ @see css::sdb::BooleanComparisonMode
+ */
+ sal_Int32
+ getBooleanComparisonMode() const;
+
+ /** determines in relations are supported.
+ *
+ * \return <TRUE/> when relations are supported, otherwise <FALSE/>
+ */
+ bool supportsRelations() const;
+
+ /** determines if column alias names can be used in the order by clause.
+ *
+ * \return <TRUE/> when relations are supported, otherwise <FALSE/>
+ */
+ bool supportsColumnAliasInOrderBy() const;
+
+ /** determines whether user administration is supported for the database
+
+ User administration support is controlled by the availability of the XUsersSupplier
+ interface, and it returning a non-NULL users container.
+
+ @param _rContext
+ the component context we operate in. Might be needed to create the
+ css.sdbc.DriverManager instance.
+ */
+ bool supportsUserAdministration( const css::uno::Reference<css::uno::XComponentContext>& _rContext ) const;
+
+ /** determines whether in the application UI, empty table folders (aka catalogs/schemas) should be displayed
+ */
+ bool displayEmptyTableFolders() const;
+
+ /** determines that threads are supported.
+ *
+ * \return <TRUE/> when threads are supported, otherwise <FALSE/>
+ */
+ bool supportsThreads() const;
+ };
+
+
+} // namespace dbtools
+
+
+#endif // INCLUDED_CONNECTIVITY_DBMETADATA_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */