I am looking for a map implementation which uses byte arrays (byte[]) as the map key.
You can perform get operations like that map.get(myByteArray, 0, len);
Google did not help. 🙁
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I am looking for a map implementation which uses byte arrays (byte[]) as the map key.
You can perform get operations like that map.get(myByteArray, 0, len);
Google did not help. 🙁
You can use ByteBuffer . It implements hashcode method in way that generated hash will depend upon the content of ByteBuffer. However you have to make sure that content of these buffer used as key should not change.
Direct from JavaDoc
Because buffer hash codes are content-dependent, it is inadvisable to use buffers as keys in hash maps or similar data structures unless it is known that their contents will not change.
This is one way to do this. Other is to implement your own class which will store byte array and implement hashCode() and equals() method which considers content of this byte array.