Package org.apache.cassandra.db

Examples of org.apache.cassandra.db.Mutation

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    static final String keyString = UUIDGen.getTimeUUID().toString();
    public static class CommitlogExecutor implements Runnable {
        public void run() {
            String ks = "Keyspace1";
            ByteBuffer key = ByteBufferUtil.bytes(keyString);
            Mutation mutation = new Mutation(ks, key);
            mutation.add("Standard1", Util.cellname("name"), ByteBufferUtil.bytes("value"),
                    System.currentTimeMillis());
            CommitLog.instance.add(mutation);
        }
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        // can get delayed, so a proposal can be older than our current most recent ballot/commit.
        // Committing it is however always safe due to column timestamps, so always do it. However,
        // if our current in-progress ballot is strictly greater than the proposal one, we shouldn't
        // erase the in-progress update.
        Tracing.trace("Committing proposal {}", proposal);
        Mutation mutation = proposal.makeMutation();
        Keyspace.open(mutation.getKeyspaceName()).apply(mutation, true);

        // We don't need to lock, we're just blindly updating
        SystemKeyspace.savePaxosCommit(proposal);
    }
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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();
        return store;
    }
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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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     *
     * @return Difference between attributes in form of schema mutation
     */
    public Mutation toSchemaUpdate(CFMetaData newState, long modificationTimestamp, boolean fromThrift)
    {
        Mutation mutation = new Mutation(Keyspace.SYSTEM_KS, SystemKeyspace.getSchemaKSKey(ksName));

        newState.toSchemaNoColumnsNoTriggers(mutation, modificationTimestamp);

        MapDifference<ByteBuffer, ColumnDefinition> columnDiff = Maps.difference(columnMetadata, newState.columnMetadata);

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     *
     * @return Mutation to use to completely remove cf from schema
     */
    public Mutation dropFromSchema(long timestamp)
    {
        Mutation mutation = new Mutation(Keyspace.SYSTEM_KS, SystemKeyspace.getSchemaKSKey(ksName));
        ColumnFamily cf = mutation.addOrGet(SchemaColumnFamiliesCf);
        int ldt = (int) (System.currentTimeMillis() / 1000);

        Composite prefix = SchemaColumnFamiliesCf.comparator.make(cfName);
        cf.addAtom(new RangeTombstone(prefix, prefix.end(), timestamp, ldt));

        for (ColumnDefinition cd : allColumns())
            cd.deleteFromSchema(mutation, timestamp);

        for (TriggerDefinition td : triggers.values())
            td.deleteFromSchema(mutation, cfName, timestamp);

        for (String indexName : Keyspace.open(this.ksName).getColumnFamilyStore(this.cfName).getBuiltIndexes())
        {
            ColumnFamily indexCf = mutation.addOrGet(IndexCf);
            indexCf.addTombstone(indexCf.getComparator().makeCellName(indexName), ldt, timestamp);
        }

        return mutation;
    }
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     *
     * @throws ConfigurationException if any of the attributes didn't pass validation
     */
    public Mutation toSchema(long timestamp) throws ConfigurationException
    {
        Mutation mutation = new Mutation(Keyspace.SYSTEM_KS, SystemKeyspace.getSchemaKSKey(ksName));
        toSchema(mutation, timestamp);
        return mutation;
    }
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                Tracing.addColumn(cf, Tracing.buildName(cfMeta, eventId, ByteBufferUtil.bytes("activity")), message);
                Tracing.addColumn(cf, Tracing.buildName(cfMeta, eventId, ByteBufferUtil.bytes("source")), FBUtilities.getBroadcastAddress());
                if (elapsed >= 0)
                    Tracing.addColumn(cf, Tracing.buildName(cfMeta, eventId, ByteBufferUtil.bytes("source_elapsed")), elapsed);
                Tracing.addColumn(cf, Tracing.buildName(cfMeta, eventId, ByteBufferUtil.bytes("thread")), threadName);
                Tracing.mutateWithCatch(new Mutation(Tracing.TRACE_KS, sessionIdBytes, cf));
            }
        });
    }
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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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