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java.lang.Objectjava.lang.Enum<DefaultHashAlgorithm>
net.spy.memcached.DefaultHashAlgorithm
public enum DefaultHashAlgorithm
Known hashing algorithms for locating a server for a key. Note that all hash algorithms return 64-bits of hash, but only the lower 32-bits are significant. This allows a positive 32-bit number to be returned for all cases.
Enum Constant Summary | |
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CRC_HASH
CRC_HASH as used by the perl API. |
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FNV1_32_HASH
32-bit FNV1. |
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FNV1_64_HASH
FNV hashes are designed to be fast while maintaining a low collision rate. |
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FNV1A_32_HASH
32-bit FNV1a. |
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FNV1A_64_HASH
Variation of FNV. |
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KETAMA_HASH
MD5-based hash algorithm used by ketama. |
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NATIVE_HASH
Native hash (String.hashCode()). |
Method Summary | |
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static byte[] |
computeMd5(java.lang.String k)
Get the md5 of the given key. |
long |
hash(java.lang.String k)
Compute the hash for the given key. |
static DefaultHashAlgorithm |
valueOf(java.lang.String name)
Returns the enum constant of this type with the specified name. |
static DefaultHashAlgorithm[] |
values()
Returns an array containing the constants of this enum type, in the order they are declared. |
Methods inherited from class java.lang.Enum |
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clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf |
Methods inherited from class java.lang.Object |
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getClass, notify, notifyAll, wait, wait, wait |
Enum Constant Detail |
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public static final DefaultHashAlgorithm NATIVE_HASH
public static final DefaultHashAlgorithm CRC_HASH
public static final DefaultHashAlgorithm FNV1_64_HASH
public static final DefaultHashAlgorithm FNV1A_64_HASH
public static final DefaultHashAlgorithm FNV1_32_HASH
public static final DefaultHashAlgorithm FNV1A_32_HASH
public static final DefaultHashAlgorithm KETAMA_HASH
Method Detail |
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public static DefaultHashAlgorithm[] values()
for (DefaultHashAlgorithm c : DefaultHashAlgorithm.values()) System.out.println(c);
public static DefaultHashAlgorithm valueOf(java.lang.String name)
name
- the name of the enum constant to be returned.
java.lang.IllegalArgumentException
- if this enum type has no constant
with the specified name
java.lang.NullPointerException
- if the argument is nullpublic long hash(java.lang.String k)
hash
in interface HashAlgorithm
public static byte[] computeMd5(java.lang.String k)
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