Examples of org.apache.cassandra.db.marshal.AbstractType

org.apache.cassandra.db.marshal.AbstractType
Specifies a Comparator for a specific type of ByteBuffer. Note that empty ByteBuffer are used to represent "start at the beginning" or "stop at the end" arguments to get_slice, so the Comparator should always handle those values even if they normally do not represent a valid ByteBuffer for the type being compared.

        validateColumns(keyspace, column_parent.column_family, column_parent.super_column, column_names);
    }


    public static void validateRange(String keyspace, ColumnParent column_parent, SliceRange range) throws InvalidRequestException
    {
        AbstractType comparator = ColumnFamily.getComparatorFor(keyspace, column_parent.column_family, column_parent.super_column);
        try
        {
            comparator.validate(range.start);
            comparator.validate(range.finish);
        }
        catch (MarshalException e)
        {
            throw new InvalidRequestException(e.getMessage());
        }


        if (range.count < 0)
            throw new InvalidRequestException("get_slice requires non-negative count");


        Comparator<byte[]> orderedComparator = range.isReversed() ? comparator.getReverseComparator() : comparator;
        if (range.start.length > 0
            && range.finish.length > 0
            && orderedComparator.compare(range.start, range.finish) > 0)
        {
            throw new InvalidRequestException("range finish must come after start in the order of traversal");

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    }


    public static ColumnFamily create(String tableName, String cfName)
    {
        String columnType = DatabaseDescriptor.getColumnFamilyType(tableName, cfName);
        AbstractType comparator = DatabaseDescriptor.getComparator(tableName, cfName);
        AbstractType subcolumnComparator = DatabaseDescriptor.getSubComparator(tableName, cfName);
        return new ColumnFamily(cfName, columnType, comparator, subcolumnComparator);
    }

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        return getComparator().getClass().getCanonicalName();
    }


    String getSubComparatorName()
    {
        AbstractType subcolumnComparator = getSubComparator();
        return subcolumnComparator == null ? "" : subcolumnComparator.getClass().getCanonicalName();
    }

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    }
    
    private static String serializeRow(IteratingRow row) throws IOException
    {
        ColumnFamily cf = row.getColumnFamily();
        AbstractType comparator = cf.getComparator();
        StringBuilder json = new StringBuilder(asKey(row.getKey().key));
        
        if (cf.isSuper())
        {
            json.append("{ ");


            Iterator<IColumn> iter = cf.getSortedColumns().iterator();
            while (iter.hasNext())
            {
                IColumn column = iter.next();
                json.append(asKey(comparator.getString(column.name())));
                json.append(serializeColumns(column.getSubColumns(), comparator));
                if (iter.hasNext())
                    json.append(", ");
            }

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        return !isMarkedForDelete();
    }


    protected void validateName(CFMetaData metadata) throws MarshalException
    {
        AbstractType nameValidator = metadata.cfType == ColumnFamilyType.Super ? metadata.subcolumnComparator : metadata.comparator;
        nameValidator.validate(name());
    }

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    }


    public void validateFields(CFMetaData metadata) throws MarshalException
    {
        validateName(metadata);
        AbstractType valueValidator = metadata.getValueValidator(name());
        if (valueValidator != null)
            valueValidator.validate(value());
    }

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            if (superColumnName.remaining() == 0)
                throw new InvalidRequestException("supercolumn name must not be empty");
            if (metadata.cfType == ColumnFamilyType.Standard)
                throw new InvalidRequestException("supercolumn specified to ColumnFamily " + metadata.cfName + " containing normal columns");
        }
        AbstractType comparator = metadata.getComparatorFor(superColumnName);
        for (ByteBuffer name : column_names)
        {
            if (name.remaining() > IColumn.MAX_NAME_LENGTH)
                throw new InvalidRequestException("column name length must not be greater than " + IColumn.MAX_NAME_LENGTH);
            if (name.remaining() == 0)
                throw new InvalidRequestException("column name must not be empty");
            try
            {
                comparator.validate(name);
            }
            catch (MarshalException e)
            {
                throw new InvalidRequestException(e.getMessage());
            }

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        validateColumnNames(metadata, column_parent.super_column, column_names);
    }


    public static void validateRange(CFMetaData metadata, ColumnParent column_parent, SliceRange range) throws InvalidRequestException
    {
        AbstractType comparator = metadata.getComparatorFor(column_parent.super_column);
        try
        {
            comparator.validate(range.start);
            comparator.validate(range.finish);
        }
        catch (MarshalException e)
        {
            throw new InvalidRequestException(e.getMessage());
        }

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            throw new InvalidRequestException("Column timestamp is required");


        ColumnDefinition columnDef = metadata.getColumnDefinition(column.name);
        try
        {
            AbstractType validator = metadata.getValueValidator(columnDef);
            if (validator != null)
                validator.validate(column.value);
        }
        catch (MarshalException me)
        {
            if (logger.isDebugEnabled())
                logger.debug("rejecting invalid value " + ByteBufferUtil.bytesToHex(summarize(column.value)));

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    throws InvalidRequestException
    {
        if (index_clause.expressions.isEmpty())
            throw new InvalidRequestException("index clause list may not be empty");
        Set<ByteBuffer> indexedColumns = Table.open(metadata.ksName).getColumnFamilyStore(metadata.cfName).indexManager.getIndexedColumns();
        AbstractType nameValidator =  ColumnFamily.getComparatorFor(metadata.ksName, metadata.cfName, null);


        boolean isIndexed = false;
        for (IndexExpression expression : index_clause.expressions)
        {
            try
            {
                nameValidator.validate(expression.column_name);
            }
            catch (MarshalException me)
            {
                throw new InvalidRequestException(String.format("[%s]=[%s] failed name validation (%s)",
                                                                ByteBufferUtil.bytesToHex(expression.column_name),
                                                                ByteBufferUtil.bytesToHex(expression.value),
                                                                me.getMessage()));
            }


            AbstractType valueValidator = Schema.instance.getValueValidator(metadata.ksName, metadata.cfName, expression.column_name);
            try
            {
                valueValidator.validate(expression.value);
            }
            catch (MarshalException me)
            {
                throw new InvalidRequestException(String.format("[%s]=[%s] failed value validation (%s)",
                                                                ByteBufferUtil.bytesToHex(expression.column_name),

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