Package org.apache.commons.codec.digest
Class MurmurHash3.IncrementalHash32
java.lang.Object
org.apache.commons.codec.digest.MurmurHash3.IncrementalHash32x86
org.apache.commons.codec.digest.MurmurHash3.IncrementalHash32
- Enclosing class:
- MurmurHash3
@Deprecated
public static class MurmurHash3.IncrementalHash32
extends MurmurHash3.IncrementalHash32x86
Deprecated.
Use IncrementalHash32x86. This corrects the processing of trailing bytes.
Generates 32-bit hash from input bytes. Bytes can be added incrementally and the new
hash computed.
This is an implementation of the 32-bit hash function MurmurHash3_x86_32
from Austin Appleby's original MurmurHash3 c++
code in SMHasher.
This implementation contains a sign-extension bug in the finalization step of any bytes left over from dividing the length by 4. This manifests if any of these bytes are negative.
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescription(package private) int
finalise
(int hash, int unprocessedLength, byte[] unprocessed, int totalLen) Deprecated.Use IncrementalHash32x86.Methods inherited from class org.apache.commons.codec.digest.MurmurHash3.IncrementalHash32x86
add, end, start
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Constructor Details
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IncrementalHash32
public IncrementalHash32()Deprecated.
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Method Details
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finalise
Deprecated.Use IncrementalHash32x86. This corrects the processing of trailing bytes.Finalizes the running hash to the output 32-bit hash by processing remaining bytes and performing final mixing.This implementation contains a sign-extension bug in the finalization step of any bytes left over from dividing the length by 4. This manifests if any of these bytes are negative.
- Overrides:
finalise
in classMurmurHash3.IncrementalHash32x86
- Parameters:
hash
- The running hashunprocessedLength
- The number of unprocessed bytes in the tail data.unprocessed
- Up to 3 unprocessed bytes from input data.totalLen
- The total number of input bytes added since the start.- Returns:
- The 32-bit hash
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