Class LocalHash
java.lang.Object
net.i2p.data.SimpleDataStructure
net.i2p.data.Hash
net.i2p.router.networkdb.kademlia.LocalHash
- All Implemented Interfaces:
DataStructure
class LocalHash extends Hash
Pull the caching used only by KBucketImpl out of Hash and put it here.
- Since:
- 0.7.14
- Author:
- jrandom, moved from Hash.java by zzz
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Field Summary
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Constructor Summary
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Method Summary
Modifier and Type Method Description byte[]cachedXor(Hash key)Calculate the xor with the current object and the specified hash, caching values where possible.voidclearXorCache()voidprepareCache()Prepare this hash's cache for xor values - very few hashes will need it, so we don't want to waste the memory, and lazy initialization would incur online overhead to verify the initialization.Methods inherited from class net.i2p.data.Hash
clearCache, create, create, create, hashCode, length, readBytes, setData, toBase32, toBase64Methods inherited from class net.i2p.data.SimpleDataStructure
calculateHash, equals, fromBase64, fromByteArray, getData, read, toByteArray, toString, writeBytes
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Constructor Details
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Method Details
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prepareCache
public void prepareCache()Prepare this hash's cache for xor values - very few hashes will need it, so we don't want to waste the memory, and lazy initialization would incur online overhead to verify the initialization. -
cachedXor
Calculate the xor with the current object and the specified hash, caching values where possible. Currently this keeps up to MAX_CACHED_XOR (1024) entries, and uses an essentially random ejection policy. Later perhaps go for an LRU or FIFO?- Throws:
IllegalStateException- if you try to use the cache without first preparing this object's cache via .prepareCache()
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clearXorCache
public void clearXorCache()
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