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diff --git a/kbabel/kbabeldict/modules/dbsearchengine2/algorithms.h b/kbabel/kbabeldict/modules/dbsearchengine2/algorithms.h
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+//
+// C++ Interface: strategies
+//
+// Description: 
+//
+//
+// Author: Andrea Rizzi <[email protected]>, (C) 2003
+//
+// Copyright: See COPYING file that comes with this distribution
+//
+//
+#ifndef DBSE2_STRATEGIES_H
+#define DBSE2_STRATEGIES_H
+
+#include "database.h"
+#include "chunk.h"
+#include <qobject.h>
+
+class AbstractSearchAlgorithm : public QObject
+{
+    Q_OBJECT
+    public: 
+    
+    typedef QValueList<QueryResult> ResultList;
+    
+    AbstractSearchAlgorithm(DataBaseInterface *dbi,DBSESettings *sets)
+    {
+	di=dbi;
+	settings=sets;
+    }
+    /**
+      * this contains the algo and return some results.	
+      */
+    virtual DataBaseInterface::ResultList exec(const QString& query)=0;	
+    
+    signals:
+    void newResult(QueryResult);
+    
+    protected:
+    DataBaseInterface *di;
+    DBSESettings *settings;
+    
+};
+
+
+
+class ExactSearchAlgorithm : public AbstractSearchAlgorithm
+{
+    Q_OBJECT
+    public: 
+    ExactSearchAlgorithm(DataBaseInterface *dbi,DBSESettings *sets) : AbstractSearchAlgorithm(dbi,sets) {}
+    
+    virtual DataBaseInterface::ResultList exec(const QString& query);
+};
+
+class AlphaSearchAlgorithm : public AbstractSearchAlgorithm
+{
+   Q_OBJECT
+    public: 
+    AlphaSearchAlgorithm(DataBaseInterface *dbi,DBSESettings *sets) : AbstractSearchAlgorithm(dbi,sets) {}
+    
+    virtual DataBaseInterface::ResultList exec(const QString& query);
+};
+
+class SentenceArchiveSearchAlgorithm : public AbstractSearchAlgorithm
+{
+   Q_OBJECT
+    public: 
+    SentenceArchiveSearchAlgorithm(DataBaseInterface *dbi,DBSESettings *sets) ;
+    
+    virtual DataBaseInterface::ResultList exec(const QString& query);
+};
+
+class ChunkByChunkSearchAlgorithm : public AbstractSearchAlgorithm
+{
+    Q_OBJECT
+    public: 
+    ChunkByChunkSearchAlgorithm(DataBaseInterface *dbi,DBSESettings *sets);
+    
+    virtual DataBaseInterface::ResultList exec(const QString& query);
+    
+    void setChunkFactory(AbstractChunkFactory *_factory)
+    {
+    factory=_factory;
+    }
+    protected:
+    AbstractChunkFactory *factory;
+};
+
+class FuzzyChunkSearchAlgorithm : public AbstractSearchAlgorithm
+{
+    Q_OBJECT
+    public: 
+    FuzzyChunkSearchAlgorithm(DataBaseInterface *dbi,DBSESettings *sets);
+    
+    virtual DataBaseInterface::ResultList exec(const QString& query);
+    void setChunkFactory(AbstractChunkFactory *_factory)
+    {
+    factory=_factory;
+    }
+    protected:
+    AbstractChunkFactory *factory;    
+};
+
+class GenericSearchAlgorithm : public AbstractSearchAlgorithm
+{
+  Q_OBJECT
+    public: 
+    GenericSearchAlgorithm(DataBaseInterface *dbi,DBSESettings *sets) ;
+    
+    virtual ResultList exec(const QString& query);
+    
+    void addAlgorithm(AbstractSearchAlgorithm *algo);    
+    void setMaxResultNumber(uint num){maxResults=num;}
+
+    
+    protected:
+    QValueList<AbstractSearchAlgorithm *> algoChain;
+    uint maxResults;
+ };
+
+
+class CorrelationSearchAlgorithm : public AbstractSearchAlgorithm
+{
+  Q_OBJECT
+    public: 
+    CorrelationSearchAlgorithm(DataBaseInterface *dbi,DBSESettings *sets) : AbstractSearchAlgorithm(dbi,sets) {}
+    virtual ResultList exec(const QString& query);
+};
+
+
+
+class SingleWordSearchAlgorithm : public GenericSearchAlgorithm
+{
+  Q_OBJECT
+    public: 
+    SingleWordSearchAlgorithm(DataBaseInterface *dbi,DBSESettings *sets);
+    virtual DataBaseInterface::ResultList exec(const QString& query);
+  
+    private:
+    ExactSearchAlgorithm exact;
+    AlphaSearchAlgorithm alpha;
+    SentenceArchiveSearchAlgorithm sentence;
+    CorrelationSearchAlgorithm corr;
+  	ChunkByChunkSearchAlgorithm chunk;
+	CaseBasedWordChunkFactory casefactory;
+};
+
+
+class UpdateChunkIndexAlgorithm
+{
+    
+};
+
+
+
+#endif //DBSE2_STRATEGIES_H