INTEGRATION: CWS dba24d (1.1.2); FILE ADDED

2007/11/21 12:39:13 oj 1.1.2.1: #i68854# impl TypeSettingInfo for Oracle and some clean up

1 files changed, 161 insertions, 0 deletions

diff --git a/connectivity/source/inc/RowFunctionParser.hxx b/connectivity/source/inc/RowFunctionParser.hxx
new file mode 100644
index 000000000000..9c0224b24756
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+++ b/connectivity/source/inc/RowFunctionParser.hxx
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+/*************************************************************************
+ *
+ *  OpenOffice.org - a multi-platform office productivity suite
+ *
+ *  $RCSfile: RowFunctionParser.hxx,v $
+ *
+ *  $Revision: 1.2 $
+ *
+ *  last change: $Author: rt $ $Date: 2008-01-30 07:59:20 $
+ *
+ *  The Contents of this file are made available subject to
+ *  the terms of GNU Lesser General Public License Version 2.1.
+ *
+ *
+ *    GNU Lesser General Public License Version 2.1
+ *    =============================================
+ *    Copyright 2005 by Sun Microsystems, Inc.
+ *    901 San Antonio Road, Palo Alto, CA 94303, USA
+ *
+ *    This library is free software; you can redistribute it and/or
+ *    modify it under the terms of the GNU Lesser General Public
+ *    License version 2.1, as published by the Free Software Foundation.
+ *
+ *    This library is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *    Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public
+ *    License along with this library; if not, write to the Free Software
+ *    Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ *    MA  02111-1307  USA
+ *
+ ************************************************************************/
+
+#ifndef CONNECTIVITY_ROWFUNCTIONPARSER_HXX_INCLUDED
+#define CONNECTIVITY_ROWFUNCTIONPARSER_HXX_INCLUDED
+
+#ifndef _SAL_CONFIG_H_
+#include <sal/config.h>
+#endif
+#ifndef BOOST_SHARED_PTR_HPP_INCLUDED
+#include <boost/shared_ptr.hpp>
+#endif
+#include "FDatabaseMetaDataResultSet.hxx"
+#include <vector>
+
+// -------------------------------------------------------------------------
+namespace connectivity
+{
+// -------------------------------------------------------------------------
+struct RowEquation
+{
+    sal_Int32   nOperation;
+    ORowSetValueDecoratorRef    nPara[ 3 ];
+
+    RowEquation() :
+        nOperation  ( 0 )
+        {
+        }
+};
+
+enum ExpressionFunct
+{
+    FUNC_CONST,
+
+    ENUM_FUNC_EQUATION,
+
+    UNARY_FUNC_COLUMN,
+    ENUM_FUNC_AND,
+    ENUM_FUNC_OR
+};
+
+#define EXPRESSION_FLAG_SUMANGLE_MODE 1
+
+class SAL_NO_VTABLE ExpressionNode
+{
+public:
+    virtual ~ExpressionNode(){}
+
+    /** Operator to calculate function value.
+
+        This method calculates the function value.
+    */
+    virtual ORowSetValueDecoratorRef evaluate(const ODatabaseMetaDataResultSet::ORow& _aRow ) const = 0;
+
+    virtual void fill(const ODatabaseMetaDataResultSet::ORow& _aRow ) const = 0;
+
+    /** Operator to retrieve the type of expression node
+    */
+    virtual ExpressionFunct getType() const = 0;
+
+    /** Operator to retrieve the ms version of expression
+    */
+    virtual ODatabaseMetaDataResultSet::ORow fillNode(
+        std::vector< RowEquation >& rEquations, ExpressionNode* pOptionalArg, sal_uInt32 nFlags ) = 0;
+};
+typedef ::boost::shared_ptr< ExpressionNode > ExpressionNodeSharedPtr;
+
+/** This exception is thrown, when the arithmetic expression
+    parser failed to parse a string.
+    */
+struct ParseError
+{
+    ParseError() {}
+    ParseError( const char* ) {}
+};
+
+class FunctionParser
+{
+public:
+
+    /** Parse a string
+
+        The following grammar is accepted by this method:
+        <code>
+
+        number_digit = '0'|'1'|'2'|'3'|'4'|'5'|'6'|'7'|'8'|'9'
+
+        number = number number_digit | number_digit
+
+        equal_function = '='
+        ternary_function = 'if'
+
+        string_reference = 'a-z,A-Z,0-9' ' '
+        modifier_reference = '$' '0-9' ' '
+
+        basic_expression =
+            number |
+            string_reference |
+            additive_expression equal_function additive_expression |
+            unary_function '(' number_digit ')'
+            ternary_function '(' additive_expression ',' additive_expression ',
+                               ' additive_expression ')' | '(' additive_expression ')'
+
+        </code>
+
+        @param rFunction
+        The string to parse
+
+        @throws ParseError if an invalid expression is given.
+
+        @return the generated function object.
+       */
+
+    static ExpressionNodeSharedPtr parseFunction( const ::rtl::OUString& _sFunction);
+
+private:
+    // disabled constructor/destructor, since this is
+    // supposed to be a singleton
+    FunctionParser();
+
+    // default: disabled copy/assignment
+    FunctionParser(const FunctionParser&);
+    FunctionParser& operator=( const FunctionParser& );
+};
+
+// -------------------------------------------------------------------------
+} // namespace connectivity
+// -------------------------------------------------------------------------
+#endif /* CONNECTIVITY_ROWFUNCTIONPARSER_HXX_INCLUDED */