mavibot-partition/src/main/java/org/apache/directory/server/core/partition/impl/btree/mavibot/KeyTupleValueCursor.java [55:176]:
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    private boolean valueAvailable;


    /**
     * Creates a Cursor over the tuples of an ArrayTree.
     *
     * @param cursor The wrapped cursor 
     * @param key the constant key for which values are returned
     */
    public KeyTupleValueCursor( ValueCursor<V> cursor, K key )
    {
        this.key = key;

        this.wrapped = cursor;

        if ( IS_DEBUG )
        {
            LOG_CURSOR.debug( "Creating KeyTupleArrayCursor {}", this );
        }
    }


    private void clearValue()
    {
        returnedTuple.setKey( key );
        returnedTuple.setValue( null );
        valueAvailable = false;
    }


    public boolean available()
    {
        return valueAvailable;
    }


    public void beforeKey( K key ) throws Exception
    {
        throw new UnsupportedOperationException( I18n.err( I18n.ERR_446 ) );
    }


    public void afterKey( K key ) throws Exception
    {
        throw new UnsupportedOperationException( I18n.err( I18n.ERR_446 ) );
    }


    public void beforeValue( K key, V value ) throws Exception
    {
        throw new UnsupportedOperationException( I18n.err( I18n.ERR_446 ) );
    }


    public void afterValue( K key, V value ) throws Exception
    {
        throw new UnsupportedOperationException( I18n.err( I18n.ERR_446 ) );
    }


    /**
     * Positions this Cursor over the same keys before the value of the
     * supplied element Tuple.  The supplied element Tuple's key is not
     * considered at all.
     *
     * @param element the valueTuple who's value is used to position this Cursor
     * @throws LdapException if there are failures to position the Cursor
     * @throws CursorException if there are failures to position the Cursor
     */
    public void before( Tuple<K, V> element ) throws LdapException, CursorException
    {
        throw new UnsupportedOperationException( I18n.err( I18n.ERR_446 ) );
    }


    /**
     * {@inheritDoc}
     */
    public void after( Tuple<K, V> element ) throws LdapException, CursorException
    {
        throw new UnsupportedOperationException( I18n.err( I18n.ERR_446 ) );
    }


    /**
     * {@inheritDoc}
     */
    public void beforeFirst() throws LdapException, CursorException
    {
    }


    /**
     * {@inheritDoc}
     */
    public void afterLast() throws LdapException, CursorException
    {
    }


    /**
     * {@inheritDoc}
     */
    public boolean first() throws LdapException, CursorException
    {
        throw new UnsupportedOperationException( I18n.err( I18n.ERR_446 ) );
    }


    /**
     * {@inheritDoc}
     */
    public boolean last() throws LdapException, CursorException
    {
        throw new UnsupportedOperationException( I18n.err( I18n.ERR_446 ) );
    }


    /**
     * {@inheritDoc}
     */
    public boolean previous() throws LdapException, CursorException
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mavibotv2-partition/src/main/java/org/apache/directory/server/core/partition/impl/btree/mavibot/KeyTupleValueCursor.java [55:175]:
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    private boolean valueAvailable;


    /**
     * Creates a Cursor over the tuples of an ArrayTree.
     *
     * @param arrayTree the ArrayTree to build a Tuple returning Cursor over
     * @param key the constant key for which values are returned
     */
    public KeyTupleValueCursor( ValueCursor<V> cursor, K key )
    {
        this.key = key;

        this.wrapped = cursor;

        if ( IS_DEBUG )
        {
            LOG_CURSOR.debug( "Creating KeyTupleArrayCursor {}", this );
        }
    }


    private void clearValue()
    {
        returnedTuple.setKey( key );
        returnedTuple.setValue( null );
        valueAvailable = false;
    }


    public boolean available()
    {
        return valueAvailable;
    }


    public void beforeKey( K key ) throws Exception
    {
        throw new UnsupportedOperationException( I18n.err( I18n.ERR_446 ) );
    }


    public void afterKey( K key ) throws Exception
    {
        throw new UnsupportedOperationException( I18n.err( I18n.ERR_446 ) );
    }


    public void beforeValue( K key, V value ) throws Exception
    {
        throw new UnsupportedOperationException( I18n.err( I18n.ERR_446 ) );
    }


    public void afterValue( K key, V value ) throws Exception
    {
        throw new UnsupportedOperationException( I18n.err( I18n.ERR_446 ) );
    }


    /**
     * Positions this Cursor over the same keys before the value of the
     * supplied element Tuple.  The supplied element Tuple's key is not
     * considered at all.
     *
     * @param element the valueTuple who's value is used to position this Cursor
     * @throws Exception if there are failures to position the Cursor
     */
    public void before( Tuple<K, V> element ) throws LdapException, CursorException
    {
        throw new UnsupportedOperationException( I18n.err( I18n.ERR_446 ) );
    }


    /**
     * {@inheritDoc}
     */
    public void after( Tuple<K, V> element ) throws LdapException, CursorException
    {
        throw new UnsupportedOperationException( I18n.err( I18n.ERR_446 ) );
    }


    /**
     * {@inheritDoc}
     */
    public void beforeFirst() throws LdapException, CursorException
    {
    }


    /**
     * {@inheritDoc}
     */
    public void afterLast() throws LdapException, CursorException
    {
    }


    /**
     * {@inheritDoc}
     */
    public boolean first() throws LdapException, CursorException
    {
        throw new UnsupportedOperationException( I18n.err( I18n.ERR_446 ) );
    }


    /**
     * {@inheritDoc}
     */
    public boolean last() throws LdapException, CursorException
    {
        throw new UnsupportedOperationException( I18n.err( I18n.ERR_446 ) );
    }


    /**
     * {@inheritDoc}
     */
    public boolean previous() throws LdapException, CursorException
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