Package com.google.common.hash

Class MacHashFunction.MacHasher

java.lang.Object

com.google.common.hash.AbstractHasher

com.google.common.hash.AbstractByteHasher

com.google.common.hash.MacHashFunction.MacHasher

All Implemented Interfaces:

Hasher, PrimitiveSink

Enclosing class:

MacHashFunction

private static final class MacHashFunction.MacHasher
extends AbstractByteHasher

Hasher that updates a Mac (message authentication code).

Field Summary

Fields

Modifier and Type	Field	Description
private boolean	done
private javax.crypto.Mac	mac

Constructor Summary

Constructors

Modifier	Constructor	Description
private	MacHasher(javax.crypto.Mac mac)

Method Summary

Modifier and Type	Method	Description
private void	checkNotDone()
HashCode	hash()	Computes a hash code based on the data that have been provided to this hasher.
protected void	update(byte b)	Updates this hasher with the given byte.
protected void	update(byte[] b)	Updates this hasher with the given bytes.
protected void	update(byte[] b, int off, int len)	Updates this hasher with len bytes starting at off in the given buffer.
protected void	update(java.nio.ByteBuffer bytes)	Updates this hasher with bytes from the given buffer.

Methods inherited from class com.google.common.hash.AbstractByteHasher

putByte, putBytes, putBytes, putBytes, putChar, putInt, putLong, putShort

Methods inherited from class com.google.common.hash.AbstractHasher

putBoolean, putDouble, putFloat, putObject, putString, putUnencodedChars

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.google.common.hash.Hasher

hashCode

Field Detail

mac

private final javax.crypto.Mac mac

done

private boolean done

Constructor Detail

MacHasher

private MacHasher(javax.crypto.Mac mac)

Method Detail

update

protected void update(byte b)

Description copied from class: AbstractByteHasher

Updates this hasher with the given byte.

Specified by:

update in class AbstractByteHasher

update

protected void update(byte[] b)

Description copied from class: AbstractByteHasher

Updates this hasher with the given bytes.

Overrides:

update in class AbstractByteHasher

update

protected void update(byte[] b,
                      int off,
                      int len)

Description copied from class: AbstractByteHasher

Updates this hasher with len bytes starting at off in the given buffer.

Overrides:

update in class AbstractByteHasher

update

protected void update(java.nio.ByteBuffer bytes)

Description copied from class: AbstractByteHasher

Updates this hasher with bytes from the given buffer.

Overrides:

update in class AbstractByteHasher

checkNotDone

private void checkNotDone()

hash

public HashCode hash()

Description copied from interface: Hasher

Computes a hash code based on the data that have been provided to this hasher. The result is unspecified if this method is called more than once on the same instance.