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.

                {
                    throw new ConfigurationException("ColumnFamily name contains invalid characters.");
                }
                
                // Parse out the column comparators and validators
                AbstractType comparator = getComparator(cf.compare_with);
                AbstractType subcolumnComparator = null;
                AbstractType default_validator = getComparator(cf.default_validation_class);


                ColumnFamilyType cfType = cf.column_type == null ? ColumnFamilyType.Standard : cf.column_type;
                if (cfType == ColumnFamilyType.Super)
                {
                    subcolumnComparator = getComparator(cf.compare_subcolumns_with);

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    }


    private List<AbstractType> getDefaultMarshallers(CfDef cfDef) throws IOException
    {
        ArrayList<AbstractType> marshallers = new ArrayList<AbstractType>();
        AbstractType comparator = null;
        AbstractType default_validator = null;
        try
        {
            comparator = FBUtilities.getComparator(cfDef.comparator_type);
            default_validator = FBUtilities.getComparator(cfDef.default_validation_class);
        }

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        Map<ByteBuffer, AbstractType> validators = new HashMap<ByteBuffer, AbstractType>();
        for (ColumnDef cd : cfDef.column_metadata)
        {
            if (cd.getValidation_class() != null && !cd.getValidation_class().isEmpty())
            {
                AbstractType validator = null;
                try
                {
                    validator = FBUtilities.getComparator(cd.getValidation_class());
                    validators.put(cd.name, validator);
                }

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        return cf;
    }


    public static CFMetaData inflate(org.apache.cassandra.avro.CfDef cf)
    {
        AbstractType comparator;
        AbstractType subcolumnComparator = null;
        AbstractType validator;
        try
        {
            comparator = DatabaseDescriptor.getComparator(cf.comparator_type.toString());
            if (cf.subcomparator_type != null)
                subcolumnComparator = DatabaseDescriptor.getComparator(cf.subcomparator_type.toString());

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        return idGen.getAndIncrement();
    }


    public AbstractType getValueValidator(ByteBuffer column)
    {
        AbstractType validator = defaultValidator;
        ColumnDefinition columnDefinition = column_metadata.get(column);
        if (columnDefinition != null)
            validator = columnDefinition.getValidator();
        return validator;
    }

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                    {
                        throw new ConfigurationException("ColumnSort is no longer an accepted attribute.  Use CompareWith instead.");
                    }


                    // Parse out the column comparator
                    AbstractType comparator = getComparator(columnFamily, "CompareWith");
                    AbstractType subcolumnComparator = null;
                    if (columnType.equals("Super"))
                    {
                        subcolumnComparator = getComparator(columnFamily, "CompareSubcolumnsWith");
                    }
                    else if (XMLUtils.getAttributeValue(columnFamily, "CompareSubcolumnsWith") != null)

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     */
    public static KsDef fromSchema(ColumnFamily serializedKsDef) throws IOException
    {
        KsDef ksDef = new KsDef();


        AbstractType comparator = serializedKsDef.getComparator();


        for (IColumn ksAttr : serializedKsDef.getSortedColumns())
        {
            if (ksAttr == null || ksAttr.isMarkedForDelete())
                continue;


            KsDef._Fields field = KsDef._Fields.findByName(comparator.getString(ksAttr.name()));
            ksDef.setFieldValue(field, deserializeValue(ksAttr.value(), getValueClass(KsDef.class, field.getFieldName())));
        }


        return ksDef.name == null ? null : ksDef;
    }

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            if (superColumnName.length == 0)
                throw new InvalidRequestException("supercolumn name must not be empty");
            if (!DatabaseDescriptor.getColumnFamilyType(keyspace, columnFamilyName).equals("Super"))
                throw new InvalidRequestException("supercolumn specified to ColumnFamily " + columnFamilyName + " containing normal columns");
        }
        AbstractType comparator = ColumnFamily.getComparatorFor(keyspace, columnFamilyName, superColumnName);
        for (byte[] name : column_names)
        {
            if (name.length > IColumn.MAX_NAME_LENGTH)
                throw new InvalidRequestException("column name length must not be greater than " + IColumn.MAX_NAME_LENGTH);
            if (name.length == 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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        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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        return getFormatTypeForColumn(getCFMetaData(keyspace).get(columnFamily).get("CompareWith")).getString(column.name);
    }


    private AbstractType getFormatTypeForColumn(String compareWith) throws ClassNotFoundException, IllegalAccessException, InstantiationException
    {
        AbstractType type;
        try {
            type = (AbstractType) Class.forName(compareWith).newInstance();
        } catch (ClassNotFoundException e) {
            type = BytesType.class.newInstance();
        }

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