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 * Copyright 2008 by Sun Microsystems, Inc.
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 * OpenOffice.org - a multi-platform office productivity suite
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 * $RCSfile: Block.hxx,v $
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#ifndef _XMLSEARCH_DB_BLOCK_HXX_
#define _XMLSEARCH_DB_BLOCK_HXX_

#include  <rtl/ustring.hxx>
#include <excep/XmlSearchExceptions.hxx>


namespace xmlsearch {

    namespace util {

        class RandomAccessStream;

    }

    namespace db {


        class DBEnv;


        class Block     // refcounted class
        {
        public:

            Block( const DBEnv* );
            virtual ~Block();

            void setInteger( sal_Int32 i,sal_Int32 value ) throw( xmlsearch::excep::IllegalIndexException );
            sal_Int32 getInteger( sal_Int32 i ) const throw( xmlsearch::excep::IllegalIndexException );

            void trueLeaf() { isLeaf_ = true; }
            void falseLeaf() { isLeaf_ = false; }
            bool isLeaf() const { return isLeaf_; }

            void setFree( sal_Int32 free ) { free_ = free; }
            sal_Int32 getFree() const { return free_; }

            void setNum( sal_Int32 num ) { num_ = num; }
            sal_Int32 getNum() const { return num_; }

            void read( util::RandomAccessStream* in );
            void write( util::RandomAccessStream* out ) const;

            const sal_Int8* getData() const { return data_; }


        protected:

            const DBEnv*  dbenv_;   // not owner


        private:

            bool          isLeaf_;
            sal_Int32     free_;
            sal_Int32     num_;
            sal_Int32     dataL_;
            sal_Int8*     data_;

            // methods

            Block( const Block& );
            Block& operator=( const Block& );

        };  // end class Block


    }
}


inline sal_Int32 getInteger_( const sal_Int8* v )
{
    return (((((( v[0]&0xFF ) << 8 )
               | v[1]&0xFF ) << 8 )
             | v[2]&0xFF ) << 8 )
        | v[3]&0xFF;
}



inline void setInteger_( sal_Int8* v,sal_Int32 value )
{
    v[0] = sal_Int8((value >> 24) & 0xFF);
    v[1] = sal_Int8((value >> 16) & 0xFF);
    v[2] = sal_Int8((value >>  8) & 0xFF);
    v[3] = sal_Int8( value & 0xFF );
}


#endif