Package org.apache.cassandra.utils

Interface Summary

CloseableIterator<T>
IMergeIterator<In,Out>
Throttle.ThroughputFunction

Class Summary

AbstractStatsDeque
Allocator
BloomFilter
BoundedStatsDeque	not threadsafe.
ByteBufferUtil	Utility methods to make ByteBuffers less painful The following should illustrate the different ways byte buffers can be used public void testArrayOffet() { byte[] b = "test_slice_array".getBytes(); ByteBuffer bb = ByteBuffer.allocate(1024); assert bb.position() == 0; assert bb.limit() == 1024; assert bb.capacity() == 1024; bb.put(b); assert bb.position() == b.length; assert bb.remaining() == bb.limit() - bb.position(); ByteBuffer bb2 = bb.slice(); assert bb2.position() == 0; //slice should begin at other buffers current position assert bb2.arrayOffset() == bb.position(); //to match the position in the underlying array one needs to //track arrayOffset assert bb2.limit()+bb2.arrayOffset() == bb.limit(); assert bb2.remaining() == bb.remaining(); } }
BytesReadTracker	This class is to track bytes read from given DataInput
CLibrary
DefaultDouble	Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.
DefaultInteger	Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.
DestructivePQIterator<T>
EstimatedHistogram
EstimatedHistogram.EstimatedHistogramSerializer
ExpiringMap<K,V>
FBUtilities
Filter
GuidGenerator
HeapAllocator
LatencyTracker
LegacyBloomFilter
MergeIterator<In,Out>	Merges sorted input iterators which individually contain unique items.
MergeIterator.Candidate<In>
MergeIterator.Reducer<In,Out>	Accumulator that collects values of type A, and outputs a value of type B.
MerkleTree	A MerkleTree implemented as a binary tree.
MerkleTree.MerkleTreeSerializer
MerkleTree.RowHash	Hash value representing a row, to be used to pass hashes to the MerkleTree.
MerkleTree.TreeRange	The public interface to a range in the tree.
MerkleTree.TreeRangeIterator	Returns the leaf (range) of a given tree in increasing order.
MurmurHash	This is a very fast, non-cryptographic hash suitable for general hash-based lookup.
Mx4jTool	If mx4j-tools is in the classpath call maybeLoad to load the HTTP interface of mx4j.
NodeId
NodeId.NodeIdRecord
NodeId.OneShotRenewer
Pair<T1,T2>
ResourceWatcher
ResourceWatcher.WatchedResource
SimpleCondition
SkipNullRepresenter	Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.
SlabAllocator	The SlabAllocator is a bump-the-pointer allocator that allocates large (2MB by default) regions and then doles them out to threads that request slices into the array.
StatusLogger
Throttle	Encapsulates the timing/state required to throttle a caller to a target throughput in bytes per millisecond, when periodically passed an absolute count of bytes.
UUIDGen	The goods are here: www.ietf.org/rfc/rfc4122.txt.
WrappedRunnable
XMLUtils