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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org 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 version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef _CONNECTIVITY_PARSE_SQLITERATOR_HXX_
#define _CONNECTIVITY_PARSE_SQLITERATOR_HXX_
#include "connectivity/dbtoolsdllapi.hxx"
#include "connectivity/sqlnode.hxx"
#include <connectivity/IParseContext.hxx>
#include <com/sun/star/sdbcx/XColumnsSupplier.hpp>
#include <com/sun/star/sdbc/DataType.hpp>
#include <com/sun/star/sdbc/SQLWarning.hpp>
#include <com/sun/star/beans/XPropertySet.hpp>
#include "connectivity/CommonTools.hxx"
#include <vos/ref.hxx>
#include <cppuhelper/weak.hxx>
#include <map>
#include <memory>
namespace connectivity
{
class OSQLParseNode;
class OSQLParser;
enum OSQLStatementType {
SQL_STATEMENT_UNKNOWN,
SQL_STATEMENT_SELECT,
SQL_STATEMENT_INSERT,
SQL_STATEMENT_UPDATE,
SQL_STATEMENT_DELETE,
SQL_STATEMENT_ODBC_CALL,
SQL_STATEMENT_CREATE_TABLE
};
struct OSQLParseTreeIteratorImpl;
class OOO_DLLPUBLIC_DBTOOLS OSQLParseTreeIterator
{
private:
::com::sun::star::sdbc::SQLException m_aErrors; // conatins the error while iterating through the statement
const OSQLParseNode* m_pParseTree; // aktueller ParseTree
const OSQLParser& m_rParser; // if set used for general error messages from the context
OSQLStatementType m_eStatementType; // Art des Statements
::vos::ORef<OSQLColumns> m_aSelectColumns; // alle Spalten aus dem Select-Clause
::vos::ORef<OSQLColumns> m_aParameters; // all parameters
::vos::ORef<OSQLColumns> m_aGroupColumns; // the group by columns
::vos::ORef<OSQLColumns> m_aOrderColumns; // the order by columns
::vos::ORef<OSQLColumns> m_aCreateColumns; // the columns for Create table clause
::std::auto_ptr< OSQLParseTreeIteratorImpl > m_pImpl;
void traverseParameter(const OSQLParseNode* _pParseNode,const OSQLParseNode* _pColumnRef,const ::rtl::OUString& _aColumnName,const ::rtl::OUString& _aTableRange, const ::rtl::OUString& _rColumnAlias);
// F"ugt eine Tabelle in die Map ein
void traverseOneTableName( OSQLTables& _rTables,const OSQLParseNode * pTableName, const ::rtl::OUString & rTableRange );
void traverseORCriteria(OSQLParseNode * pSearchCondition);
void traverseANDCriteria(OSQLParseNode * pSearchCondition);
void traverseOnePredicate(
OSQLParseNode * pColumnRef,
::rtl::OUString& aValue,
OSQLParseNode * pParameter);
void traverseByColumnNames(const OSQLParseNode* pSelectNode,sal_Bool _bOrder);
void traverseParameters(const OSQLParseNode* pSelectNode);
const OSQLParseNode* getTableNode( OSQLTables& _rTables, const OSQLParseNode* pTableRef, ::rtl::OUString& aTableRange );
void getQualified_join( OSQLTables& _rTables, const OSQLParseNode *pTableRef, ::rtl::OUString& aTableRange );
void getSelect_statement(OSQLTables& _rTables,const OSQLParseNode* pSelect);
::rtl::OUString getUniqueColumnName(const ::rtl::OUString & rColumnName) const;
/** finds the column with a given name, belonging to a given table, in a given tables collection
@param _rTables
the tables collection to look in
@param rColumnName
the column name to look for
@param rTableRange
the table alias name
@return
the desired column object, or <NULL/> if no such column could be found
*/
static ::com::sun::star::uno::Reference< ::com::sun::star::beans::XPropertySet > findColumn(
const OSQLTables& _rTables, const ::rtl::OUString & rColumnName, const ::rtl::OUString & rTableRange );
/** finds a column with a given name, belonging to a given table
@param rColumnName
the column name to look for
@param rTableRange
the table alias name
@param _bLookInSubTables
<TRUE/> if and only if not only our direct tables, but also our sub tables (from sub selects)
should be searched
@return
*/
::com::sun::star::uno::Reference< ::com::sun::star::beans::XPropertySet > findColumn(
const ::rtl::OUString & rColumnName, const ::rtl::OUString & rTableRange, bool _bLookInSubTables );
protected:
void setSelectColumnName(::vos::ORef<OSQLColumns>& _rColumns,const ::rtl::OUString & rColumnName,const ::rtl::OUString & rColumnAlias, const ::rtl::OUString & rTableRange,sal_Bool bFkt=sal_False,sal_Int32 _nType = com::sun::star::sdbc::DataType::VARCHAR,sal_Bool bAggFkt=sal_False);
void appendColumns(::vos::ORef<OSQLColumns>& _rColumns,const ::rtl::OUString& _rTableAlias,const OSQLTable& _rTable);
// Weitere Member-Variable, die in den "set"-Funktionen zur
// Verfuegung stehen sollen, koennen in der abgeleiteten Klasse
// definiert werden und z. B. in deren Konstruktor initialisiert
// bzw. nach Benutzung der "traverse"-Routinen mit Hilfe weiterer
// Funktionen abgefragt werden.
private:
OSQLParseTreeIterator(); // never implemented
OSQLParseTreeIterator(const OSQLParseTreeIterator & rIter); // never implemented
public:
OSQLParseTreeIterator(
const ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XConnection >& _rxConnection,
const ::com::sun::star::uno::Reference< ::com::sun::star::container::XNameAccess >& _rxTables,
const OSQLParser& _rParser,
const OSQLParseNode* pRoot = NULL );
~OSQLParseTreeIterator();
inline static void * SAL_CALL operator new( size_t nSize ) SAL_THROW( () )
{ return ::rtl_allocateMemory( nSize ); }
inline static void * SAL_CALL operator new( size_t,void* _pHint ) SAL_THROW( () )
{ return _pHint; }
inline static void SAL_CALL operator delete( void * pMem ) SAL_THROW( () )
{ ::rtl_freeMemory( pMem ); }
inline static void SAL_CALL operator delete( void *,void* ) SAL_THROW( () )
{ }
void dispose();
bool isCaseSensitive() const;
// Der zu analysierende/zu traversierende Parse Tree:
// bei "Ubergabe von NULL wird der aktuelle Parsetree gel"oscht und der Fehlerstatus gecleared
void setParseTree(const OSQLParseNode * pNewParseTree);
// void setParser(const OSQLParser* _pParser) { m_pParser = _pParser; }
const OSQLParseNode * getParseTree() const { return m_pParseTree; };
// Teilbaueme bei einem select statement
const OSQLParseNode* getWhereTree() const;
const OSQLParseNode* getOrderTree() const;
const OSQLParseNode* getGroupByTree() const;
const OSQLParseNode* getHavingTree() const;
const OSQLParseNode* getSimpleWhereTree() const;
const OSQLParseNode* getSimpleOrderTree() const;
const OSQLParseNode* getSimpleGroupByTree() const;
const OSQLParseNode* getSimpleHavingTree() const;
/** returns the errors which occured during parsing.
The returned object contains a chain (via SQLException::NextException) of SQLExceptions.
*/
inline const ::com::sun::star::sdbc::SQLException& getErrors() const { return m_aErrors; }
inline bool hasErrors() const { return m_aErrors.Message.getLength() > 0; }
// Statement-Typ (wird bereits in setParseTree gesetzt):
OSQLStatementType getStatementType() const { return m_eStatementType; }
/** traverses the complete statement tree, and fills all our data with
the information obatined during traversal.
Implemented by calling the single traverse* methods in the proper
order (depending on the statement type).
*/
void traverseAll();
enum TraversalParts
{
Parameters = 0x0001,
TableNames = 0x0002,
SelectColumns = 0x0006, // note that this includes TableNames. No SelectColumns without TableNames
// Those are not implemented currently
// GroupColumns = 0x0008,
// OrderColumns = 0x0010,
// SelectColumns = 0x0020,
// CreateColumns = 0x0040,
All = 0xFFFF
};
/** traverses selected parts of the statement tree, and fills our data with
the information obtained during traversal
@param _nIncludeMask
set of TraversalParts bits, specifying which information is to be collected.
Note TraversalParts is currently not
*/
void traverseSome( sal_uInt32 _nIncludeMask );
// Die TableRangeMap enth"alt alle Tabellen unter dem zugeh"origen Rangenamen der zuerst gefunden wird
const OSQLTables& getTables() const;
::vos::ORef<OSQLColumns> getSelectColumns() const { return m_aSelectColumns;}
::vos::ORef<OSQLColumns> getGroupColumns() const { return m_aGroupColumns;}
::vos::ORef<OSQLColumns> getOrderColumns() const { return m_aOrderColumns;}
::vos::ORef<OSQLColumns> getParameters() const { return m_aParameters; }
::vos::ORef<OSQLColumns> getCreateColumns() const { return m_aCreateColumns;}
/** return the columname and the table range
@param _pColumnRef
The column ref parse node.
@param _rColumnName
The column name to be set.
@param _rTableRange
The table range to be set.
*/
void getColumnRange( const OSQLParseNode* _pColumnRef,
::rtl::OUString &_rColumnName,
::rtl::OUString& _rTableRange) const;
/** retrieves a column's name, table range, and alias
@param _pColumnRef
The column_ref parse node.
@param _out_rColumnName
The column name to be set.
@param _out_rTableRange
The table range to be set.
@param _out_rColumnAliasIfPresent
If the column specified by _pColumnRef is part of the select columns, and contains a column alias there,
this alias is returned here.
*/
void getColumnRange( const OSQLParseNode* _pColumnRef,
::rtl::OUString& _out_rColumnName,
::rtl::OUString& _out_rTableRange,
::rtl::OUString& _out_rColumnAliasIfPresent
) const;
/** return the alias name of a column
@param _pDerivedColumn
The parse node where SQL_ISRULE(_pDerivedColumn,derived_column) must be true
@return
The alias name of the column or an empty string.
*/
static ::rtl::OUString getColumnAlias(const OSQLParseNode* _pDerivedColumn);
/** return the columname and the table range
@param _pColumnRef
The column ref parse node.
@param _xMetaData
The database meta data.
@param _rColumnName
The column name to be set.
@param _rTableRange
The table range to be set.
*/
static void getColumnRange( const OSQLParseNode* _pColumnRef,
const ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XConnection >& _rxConnection,
::rtl::OUString &_rColumnName,
::rtl::OUString& _rTableRange);
// Ermittelt fuer eine Funktion, Spalten den zugehoeren TableRange,
// wenn nicht eindeutig, dann leer
sal_Bool getColumnTableRange(const OSQLParseNode* pNode, ::rtl::OUString &rTableRange) const;
// return true when the tableNode is a rule like catalog_name, schema_name or table_name
sal_Bool isTableNode(const OSQLParseNode* _pTableNode) const;
private:
/** traverses the list of table names, and filles _rTables
*/
bool traverseTableNames( OSQLTables& _rTables );
/// traverses columns in a SELECT statement
bool traverseSelectColumnNames(const OSQLParseNode* pSelectNode);
/// traverses columns in a CREATE TABLE statement
void traverseCreateColumns(const OSQLParseNode* pSelectNode);
bool traverseOrderByColumnNames(const OSQLParseNode* pSelectNode);
bool traverseGroupByColumnNames(const OSQLParseNode* pSelectNode);
bool traverseSelectionCriteria(const OSQLParseNode* pSelectNode);
private:
/** constructs a new iterator, which inherits some of the settings from a parent iterator
*/
OSQLParseTreeIterator(
const OSQLParseTreeIterator& _rParentIterator,
const OSQLParser& _rParser,
const OSQLParseNode* pRoot );
/** creates a table object and inserts it into our tables collection
only used when we're iterating through a CREATE TABLE statement
*/
OSQLTable impl_createTableObject(
const ::rtl::OUString& rTableName, const ::rtl::OUString& rCatalogName, const ::rtl::OUString& rSchemaName );
/** locates a record source (a table or query) with the given name
*/
OSQLTable impl_locateRecordSource(
const ::rtl::OUString& _rComposedName
);
/** implementation for both traverseAll and traverseSome
*/
void impl_traverse( sal_uInt32 _nIncludeMask );
/** retrieves the parameter columns of the given query
*/
void impl_getQueryParameterColumns( const OSQLTable& _rQuery );
void setOrderByColumnName(const ::rtl::OUString & rColumnName, const ::rtl::OUString & rTableRange, sal_Bool bAscending);
void setGroupByColumnName(const ::rtl::OUString & rColumnName, const ::rtl::OUString & rTableRange);
private:
/** appends an SQLException corresponding to the given error code to our error collection
@param _eError
the code of the error which occured
@param _pReplaceToken1
if not <NULL/>, the first occurance of '#' in the error message will be replaced
with the given token
@param _pReplaceToken2
if not <NULL/>, and if _rReplaceToken1 is not <NULL/>, the second occurance of '#'
in the error message will be replaced with _rReplaceToken2
*/
void impl_appendError( IParseContext::ErrorCode _eError,
const ::rtl::OUString* _pReplaceToken1 = NULL, const ::rtl::OUString* _pReplaceToken2 = NULL );
/** appends an SQLException corresponding to the given error code to our error collection
*/
void impl_appendError( const ::com::sun::star::sdbc::SQLException& _rError );
/** resets our errors
*/
inline void impl_resetErrors()
{
m_aErrors = ::com::sun::star::sdbc::SQLException();
}
};
}
#endif // _CONNECTIVITY_PARSE_SQLITERATOR_HXX_
|
