Package org.apache.cassandra.cache

Examples of org.apache.cassandra.cache.RowCacheKey

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    public void updateRowCache(DecoratedKey key, ColumnFamily columnFamily)
    {
        if (metadata.cfId == null)
            return; // secondary index

        RowCacheKey cacheKey = new RowCacheKey(metadata.cfId, key);

        // always invalidate a copying cache value
        if (CacheService.instance.rowCache.isPutCopying())
        {
            invalidateCachedRow(cacheKey);
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    private ColumnFamily getThroughCache(UUID cfId, QueryFilter filter)
    {
        assert isRowCacheEnabled()
               : String.format("Row cache is not enabled on column family [" + getColumnFamilyName() + "]");

        RowCacheKey key = new RowCacheKey(cfId, filter.key);

        // attempt a sentinel-read-cache sequence.  if a write invalidates our sentinel, we'll return our
        // (now potentially obsolete) data, but won't cache it. see CASSANDRA-3862
        IRowCacheEntry cached = CacheService.instance.rowCache.get(key);
        if (cached != null)
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    public ColumnFamily getRawCachedRow(DecoratedKey key)
    {
        if (metadata.cfId == null)
            return null; // secondary index

        IRowCacheEntry cached = getCachedRowInternal(new RowCacheKey(metadata.cfId, key));
        return cached == null || cached instanceof RowCacheSentinel ? null : (ColumnFamily) cached;
    }
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    /**
     * @return true if @param key is contained in the row cache
     */
    public boolean containsCachedRow(DecoratedKey key)
    {
        return CacheService.instance.rowCache.getCapacity() != 0 && CacheService.instance.rowCache.containsKey(new RowCacheKey(metadata.cfId, key));
    }
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    {
        UUID cfId = Schema.instance.getId(table.name, this.columnFamily);
        if (cfId == null)
            return; // secondary index

        invalidateCachedRow(new RowCacheKey(cfId, key));
    }
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        // set global row cache size to 1 MB
        CacheService.instance.setRowCacheCapacityInMB(1);

        ByteBuffer key = ByteBufferUtil.bytes("rowcachekey");
        DecoratedKey dk = cachedStore.partitioner.decorateKey(key);
        RowCacheKey rck = new RowCacheKey(cachedStore.metadata.cfId, dk);
        Mutation mutation = new Mutation(KEYSPACE_CACHED, key);
        for (int i = 0; i < 200; i++)
            mutation.add(cf, Util.cellname(i), ByteBufferUtil.bytes("val" + i), System.currentTimeMillis());
        mutation.applyUnsafe();
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    public void maybeUpdateRowCache(DecoratedKey key, ColumnFamily columnFamily)
    {
        if (!isRowCacheEnabled())
            return;

        RowCacheKey cacheKey = new RowCacheKey(metadata.cfId, key);

        // always invalidate a copying cache value
        if (CacheService.instance.rowCache.isPutCopying())
        {
            invalidateCachedRow(cacheKey);
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    private ColumnFamily getThroughCache(UUID cfId, QueryFilter filter)
    {
        assert isRowCacheEnabled()
               : String.format("Row cache is not enabled on column family [" + getColumnFamilyName() + "]");

        RowCacheKey key = new RowCacheKey(cfId, filter.key);

        // attempt a sentinel-read-cache sequence.  if a write invalidates our sentinel, we'll return our
        // (now potentially obsolete) data, but won't cache it. see CASSANDRA-3862
        IRowCacheEntry cached = CacheService.instance.rowCache.get(key);
        if (cached != null)
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    public ColumnFamily getRawCachedRow(DecoratedKey key)
    {
        if (!isRowCacheEnabled() || metadata.cfId == null)
            return null; // secondary index

        IRowCacheEntry cached = CacheService.instance.rowCache.getInternal(new RowCacheKey(metadata.cfId, key));
        return cached == null || cached instanceof RowCacheSentinel ? null : (ColumnFamily) cached;
    }
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    /**
     * @return true if @param key is contained in the row cache
     */
    public boolean containsCachedRow(DecoratedKey key)
    {
        return CacheService.instance.rowCache.getCapacity() != 0 && CacheService.instance.rowCache.containsKey(new RowCacheKey(metadata.cfId, key));
    }
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Related Classes of org.apache.cassandra.cache.RowCacheKey

  • org.apache.cassandra.db.ColumnFamilyStore
  • org.apache.cassandra.db.RowCacheTest
  • org.apache.commons.lang.builder.HashCodeBuilder
  • java.nio.ByteBuffer
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