net.jpountz.xxhash

Class StreamingXXHash64

java.lang.Object

net.jpountz.xxhash.StreamingXXHash64

public abstract class StreamingXXHash64
extends java.lang.Object

Streaming interface for XXHash64.

This API is compatible with the block API and the following code samples are equivalent:

   long hash(XXHashFactory xxhashFactory, byte[] buf, int off, int len, long seed) {
     return xxhashFactory.hash64().hash(buf, off, len, seed);
   }
 

   long hash(XXHashFactory xxhashFactory, byte[] buf, int off, int len, long seed) {
     StreamingXXHash64 sh64 = xxhashFactory.newStreamingHash64(seed);
     sh64.update(buf, off, len);
     return sh64.getValue();
   }
 

Instances of this class are not thread-safe.

Method Summary

Modifier and Type	Method and Description
java.util.zip.Checksum	asChecksum() Return a Checksum view of this instance.
abstract long	getValue() Get the value of the checksum.
abstract void	reset() Reset this instance to the state it had right after instantiation.
java.lang.String	toString()
abstract void	update(byte[] buf, int off, int len) Update the value of the hash with buf[off:off+len].

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Detail

getValue

public abstract long getValue()

Get the value of the checksum.

update

public abstract void update(byte[] buf,
                            int off,
                            int len)

Update the value of the hash with buf[off:off+len].

reset

public abstract void reset()

Reset this instance to the state it had right after instantiation. The seed remains unchanged.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

asChecksum

public final java.util.zip.Checksum asChecksum()

Return a Checksum view of this instance. Modifications to the view will modify this instance too and vice-versa.