com.google.common.hash

Class AbstractNonStreamingHashFunction.BufferingHasher

java.lang.Object

com.google.common.hash.AbstractHasher

com.google.common.hash.AbstractNonStreamingHashFunction.BufferingHasher

All Implemented Interfaces:

Hasher, PrimitiveSink

Enclosing class:

AbstractNonStreamingHashFunction

private final class AbstractNonStreamingHashFunction.BufferingHasher
extends AbstractHasher

In-memory stream-based implementation of Hasher.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) static int	BOTTOM_BYTE
(package private) AbstractNonStreamingHashFunction.ExposedByteArrayOutputStream	stream

Constructor Summary

Constructors

Constructor and Description
BufferingHasher(int expectedInputSize)

Method Summary

Modifier and Type	Method and Description
HashCode	hash() Computes a hash code based on the data that have been provided to this hasher.
Hasher	putByte(byte b) Puts a byte into this sink.
Hasher	putBytes(byte[] bytes) Puts an array of bytes into this sink.
Hasher	putBytes(byte[] bytes, int off, int len) Puts a chunk of an array of bytes into this sink.
Hasher	putChar(char c) Puts a character into this sink.
Hasher	putInt(int i) Puts an int into this sink.
Hasher	putLong(long l) Puts a long into this sink.
<T> Hasher	putObject(T instance, Funnel<? super T> funnel) A simple convenience for funnel.funnel(object, this).
Hasher	putShort(short s) Puts a short into this sink.

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

putBoolean, putDouble, putFloat, 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

stream

final AbstractNonStreamingHashFunction.ExposedByteArrayOutputStream stream

BOTTOM_BYTE

static final int BOTTOM_BYTE

See Also:

Constant Field Values

Constructor Detail

BufferingHasher

BufferingHasher(int expectedInputSize)

Method Detail

putByte

public Hasher putByte(byte b)

Description copied from interface: PrimitiveSink

Puts a byte into this sink.

Parameters:

b - a byte

Returns:

this instance

putBytes

public Hasher putBytes(byte[] bytes)

Description copied from interface: PrimitiveSink

Puts an array of bytes into this sink.

Parameters:

bytes - a byte array

Returns:

this instance

putBytes

public Hasher putBytes(byte[] bytes,
                       int off,
                       int len)

Description copied from interface: PrimitiveSink

Puts a chunk of an array of bytes into this sink. bytes[off] is the first byte written, bytes[off + len - 1] is the last.

Parameters:

bytes - a byte array

off - the start offset in the array

len - the number of bytes to write

Returns:

this instance

putShort

public Hasher putShort(short s)

Description copied from interface: PrimitiveSink

Puts a short into this sink.

putInt

public Hasher putInt(int i)

Description copied from interface: PrimitiveSink

Puts an int into this sink.

putLong

public Hasher putLong(long l)

Description copied from interface: PrimitiveSink

Puts a long into this sink.

putChar

public Hasher putChar(char c)

Description copied from interface: PrimitiveSink

Puts a character into this sink.

putObject

public <T> Hasher putObject(T instance,
                            Funnel<? super T> funnel)

Description copied from interface: Hasher

A simple convenience for funnel.funnel(object, this).

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.