Package org.apache.cassandra.db

Examples of org.apache.cassandra.db.Mutation

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    public void testSerializeAndLoadKeyCache() throws Exception
    {
        ColumnFamilyStore cfs = Keyspace.open("Keyspace1").getColumnFamilyStore("Standard1");
        for (int i = 0; i < 2; i++)
        {
            Mutation rm = new Mutation("Keyspace1", ByteBufferUtil.bytes("key1"));
            rm.add("Standard1", Util.cellname("c1"), ByteBufferUtil.bytes(i), 0);
            rm.apply();
            cfs.forceBlockingFlush();
        }

        Assert.assertEquals(2, cfs.getSSTables().size());
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    {
        public Collection<Mutation> augment(ByteBuffer key, ColumnFamily update)
        {
            ColumnFamily extraUpdate = update.cloneMeShallow(ArrayBackedSortedColumns.factory, false);
            extraUpdate.addColumn(new BufferCell(update.metadata().comparator.makeCellName(bytes("v2")), bytes(999)));
            return Collections.singletonList(new Mutation(ksName, key, extraUpdate));
        }
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        {
            ColumnFamily extraUpdate = update.cloneMeShallow(ArrayBackedSortedColumns.factory, false);
            extraUpdate.addColumn(new BufferCell(update.metadata().comparator.makeCellName(bytes("v2")), bytes(999)));

            int newKey = toInt(key) + 1000;
            return Collections.singletonList(new Mutation(ksName, bytes(newKey), extraUpdate));
        }
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    {
        public Collection<Mutation> augment(ByteBuffer key, ColumnFamily update)
        {
            ColumnFamily extraUpdate = ArrayBackedSortedColumns.factory.create(ksName, otherCf);
            extraUpdate.addColumn(new BufferCell(extraUpdate.metadata().comparator.makeCellName(bytes("v2")), bytes(999)));
            return Collections.singletonList(new Mutation(ksName, key, extraUpdate));
        }
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        store.disableAutoCompaction();
        long timestamp = System.currentTimeMillis();
        for (int i = 0; i < 10; i++)
        {
            DecoratedKey key = Util.dk(Integer.toString(i));
            Mutation rm = new Mutation(KEYSPACE1, key.getKey());
            for (int j = 0; j < 10; j++)
                rm.add("Standard1", Util.cellname(Integer.toString(j)),
                       ByteBufferUtil.EMPTY_BYTE_BUFFER,
                       timestamp,
                       0);
            rm.apply();
        }
        store.forceBlockingFlush();
        Collection<SSTableReader> sstables = store.getUnrepairedSSTables();
        assertEquals(store.getSSTables().size(), sstables.size());
        Range<Token> range = new Range<Token>(new BytesToken("0".getBytes()), new BytesToken("4".getBytes()));
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    @Test
    public void testIndexInsertAndUpdate()
    {
        // create a row then test that the configured index instance was able to read the row
        Mutation rm;
        rm = new Mutation("PerRowSecondaryIndex", ByteBufferUtil.bytes("k1"));
        rm.add("Indexed1", Util.cellname("indexed"), ByteBufferUtil.bytes("foo"), 1);
        rm.apply();

        ColumnFamily indexedRow = PerRowSecondaryIndexTest.TestIndex.LAST_INDEXED_ROW;
        assertNotNull(indexedRow);
        assertEquals(ByteBufferUtil.bytes("foo"), indexedRow.getColumn(Util.cellname("indexed")).value());

        // update the row and verify what was indexed
        rm = new Mutation("PerRowSecondaryIndex", ByteBufferUtil.bytes("k1"));
        rm.add("Indexed1", Util.cellname("indexed"), ByteBufferUtil.bytes("bar"), 2);
        rm.apply();

        indexedRow = PerRowSecondaryIndexTest.TestIndex.LAST_INDEXED_ROW;
        assertNotNull(indexedRow);
        assertEquals(ByteBufferUtil.bytes("bar"), indexedRow.getColumn(Util.cellname("indexed")).value());
        assertTrue(Arrays.equals("k1".getBytes(), PerRowSecondaryIndexTest.TestIndex.LAST_INDEXED_KEY.array()));
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    @Test
    public void testColumnDelete()
    {
        // issue a column delete and test that the configured index instance was notified to update
        Mutation rm;
        rm = new Mutation("PerRowSecondaryIndex", ByteBufferUtil.bytes("k2"));
        rm.delete("Indexed1", Util.cellname("indexed"), 1);
        rm.apply();

        ColumnFamily indexedRow = PerRowSecondaryIndexTest.TestIndex.LAST_INDEXED_ROW;
        assertNotNull(indexedRow);

        for (Cell cell : indexedRow.getSortedColumns())
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    @Test
    public void testRowDelete()
    {
        // issue a row level delete and test that the configured index instance was notified to update
        Mutation rm;
        rm = new Mutation("PerRowSecondaryIndex", ByteBufferUtil.bytes("k3"));
        rm.delete("Indexed1", 1);
        rm.apply();

        ColumnFamily indexedRow = PerRowSecondaryIndexTest.TestIndex.LAST_INDEXED_ROW;
        assertNotNull(indexedRow);
        for (Cell cell : indexedRow.getSortedColumns())
            assertFalse(cell.isLive());
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        // insert data and compact to a single sstable
        CompactionManager.instance.disableAutoCompaction();
        for (int j = 0; j < 10; j++)
        {
            ByteBuffer key = ByteBufferUtil.bytes(String.valueOf(j));
            Mutation rm = new Mutation("Keyspace1", key);
            rm.add("Standard2", cellname("0"), ByteBufferUtil.EMPTY_BYTE_BUFFER, j);
            rm.apply();
        }
        store.forceBlockingFlush();
        CompactionManager.instance.performMaximal(store);

        List<Range<Token>> ranges = new ArrayList<Range<Token>>();
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        // insert a bunch of data and compact to a single sstable
        CompactionManager.instance.disableAutoCompaction();
        for (int j = 0; j < 100; j += 2)
        {
            ByteBuffer key = ByteBufferUtil.bytes(String.valueOf(j));
            Mutation rm = new Mutation("Keyspace1", key);
            rm.add("Standard1", cellname("0"), ByteBufferUtil.EMPTY_BYTE_BUFFER, j);
            rm.apply();
        }
        store.forceBlockingFlush();
        CompactionManager.instance.performMaximal(store);

        // check that all our keys are found correctly
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Related Classes of org.apache.cassandra.db.Mutation

  • org.apache.cassandra.cache.AutoSavingCacheTest
  • org.apache.cassandra.config.CFMetaData
  • org.apache.cassandra.cql.DeleteStatement
  • org.apache.cassandra.db.commitlog.ComitLogStress$CommitlogExecutor
  • org.apache.cassandra.db.compaction.AntiCompactionTest
  • org.apache.cassandra.db.compaction.DateTieredCompactionStrategyTest
  • org.apache.cassandra.db.compaction.LeveledCompactionStrategyTest
  • org.apache.cassandra.db.index.PerRowSecondaryIndexTest
  • org.apache.cassandra.io.sstable.SSTableReaderTest
  • org.apache.cassandra.io.sstable.SSTableRewriterTest
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