Package org.apache.cassandra.db

Examples of org.apache.cassandra.db.DecoratedKey

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    public SSTableNamesIterator(SSTableReader ssTable, String key, SortedSet<byte[]> columnNames) throws IOException
    {
        assert columnNames != null;
        this.columns = columnNames;

        DecoratedKey decoratedKey = ssTable.getPartitioner().decorateKey(key);

        FileDataInput file = ssTable.getFileDataInput(decoratedKey, DatabaseDescriptor.getIndexedReadBufferSizeInKB() * 1024);
        if (file == null)
            return;
        try
        {
            DecoratedKey keyInDisk = ssTable.getPartitioner().convertFromDiskFormat(file.readUTF());
            assert keyInDisk.equals(decoratedKey)
                   : String.format("%s != %s in %s", keyInDisk, decoratedKey, file.getPath());
            file.readInt(); // data size

            /* Read the bloom filter summarizing the columns */
            BloomFilter bf = IndexHelper.defreezeBloomFilter(file);
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    throws IOException
    {
        this.reversed = reversed;

        /* Morph key into actual key based on the partition type. */
        DecoratedKey decoratedKey = ssTable.getPartitioner().decorateKey(key);
        FileDataInput fdi = ssTable.getFileDataInput(decoratedKey, DatabaseDescriptor.getSlicedReadBufferSizeInKB() * 1024);
        this.comparator = ssTable.getColumnComparator();
        this.startColumn = startColumn;
        this.finishColumn = finishColumn;
        if (fdi != null)
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        public ColumnGroupReader(SSTableReader ssTable, DecoratedKey key, FileDataInput input) throws IOException
        {
            this.file = input;

            DecoratedKey keyInDisk = ssTable.getPartitioner().convertFromDiskFormat(file.readUTF());
            assert keyInDisk.equals(key)
                   : String.format("%s != %s in %s", keyInDisk, key, file.getPath());

            file.readInt(); // row size
            IndexHelper.skipBloomFilter(file);
            indexes = IndexHelper.deserializeIndex(file);
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                    int numkeys = keys.size();
                    Random random = new Random();
                    // sample the column family using random keys from the index
                    while (true)
                    {
                        DecoratedKey dk = keys.get(random.nextInt(numkeys));
                        if (!tree.split(dk.token))
                            break;
                    }
                }
            }
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    public SSTableNamesIterator(SSTableReader ssTable, String key, SortedSet<byte[]> columnNames) throws IOException
    {
        assert columnNames != null;
        this.columns = columnNames;

        DecoratedKey decoratedKey = ssTable.getPartitioner().decorateKey(key);

        FileDataInput file = ssTable.getFileDataInput(decoratedKey, DatabaseDescriptor.getIndexedReadBufferSizeInKB() * 1024);
        if (file == null)
            return;
        try
        {
            DecoratedKey keyInDisk = ssTable.getPartitioner().convertFromDiskFormat(file.readUTF());
            assert keyInDisk.equals(decoratedKey)
                   : String.format("%s != %s in %s", keyInDisk, decoratedKey, file.getPath());
            file.readInt(); // data size

            /* Read the bloom filter and index summarizing the columns */
            BloomFilter bf = IndexHelper.defreezeBloomFilter(file);
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    throws IOException
    {
        this.reversed = reversed;

        /* Morph key into actual key based on the partition type. */
        DecoratedKey decoratedKey = ssTable.getPartitioner().decorateKey(key);
        FileDataInput fdi = ssTable.getFileDataInput(decoratedKey, DatabaseDescriptor.getSlicedReadBufferSizeInKB() * 1024);
        this.comparator = ssTable.getColumnComparator();
        this.startColumn = startColumn;
        this.finishColumn = finishColumn;
        if (fdi != null)
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        public ColumnGroupReader(SSTableReader ssTable, DecoratedKey key, FileDataInput input) throws IOException
        {
            this.file = input;

            DecoratedKey keyInDisk = ssTable.getPartitioner().convertFromDiskFormat(file.readUTF());
            assert keyInDisk.equals(key)
                   : String.format("%s != %s in %s", keyInDisk, key, file.getPath());

            file.readInt(); // row size
            IndexHelper.skipBloomFilter(file);
            indexes = IndexHelper.deserializeIndex(file);
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    {
        IPartitioner partitioner = StorageService.getPartitioner();
        BufferedRandomAccessFile input = new BufferedRandomAccessFile(SSTable.indexFilename(ssTableFile), "r");
        while (!input.isEOF())
        {
            DecoratedKey decoratedKey = partitioner.convertFromDiskFormat(input.readUTF());
            long dataPosition = input.readLong();
            outs.println(decoratedKey.key);
        }

        outs.flush();
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    protected CompactedRow getReduced()
    {
        assert rows.size() > 0;
        DataOutputBuffer buffer = new DataOutputBuffer();
        DecoratedKey key = rows.get(0).getKey();

        Set<SSTable> sstables = new HashSet<SSTable>();
        for (IteratingRow row : rows)
            sstables.add(row.sstable);
        boolean shouldPurge = major || !cfs.isKeyInRemainingSSTables(key, sstables);
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     */
    public DecoratedKey getIndexKeyFor(ByteBuffer value)
    {
        // FIXME: this imply one column definition per index
        ByteBuffer name = columnDefs.iterator().next().name.bytes;
        return new DecoratedKey(new LocalToken(baseCfs.metadata.getColumnDefinition(name).type, value), value);
    }
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Related Classes of org.apache.cassandra.db.DecoratedKey

  • com.stratio.cassandra.index.FullKeyMapperDataRangeFilter
  • com.stratio.cassandra.index.PartitionKeyMapper
  • com.stratio.cassandra.index.RowMapperSkinny
  • com.stratio.cassandra.index.RowServiceSkinny
  • org.apache.cassandra.cache.AutoSavingCache
  • org.apache.cassandra.CleanupHelper
  • org.apache.cassandra.config.CFMetaDataTest
  • org.apache.cassandra.db.columniterator.SSTableNamesIterator
  • org.apache.cassandra.db.columniterator.SSTableSliceIterator
  • org.apache.cassandra.db.compaction.AntiCompactionTest
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