Package com.google.common.hash

Class Funnels

java.lang.Object

com.google.common.hash.Funnels

@Beta
public final class Funnels
extends java.lang.Object

Funnels for common types. All implementations are serializable.

Since:

11.0

Method Summary

Modifier and Type	Method	Description
static java.io.OutputStream	asOutputStream(PrimitiveSink sink)	Wraps a PrimitiveSink as an OutputStream, so it is easy to funnel an object to a PrimitiveSink if there is already a way to write the contents of the object to an OutputStream.
static Funnel<byte[]>	byteArrayFunnel()	Returns a funnel that extracts the bytes from a byte array.
static Funnel<java.lang.Integer>	integerFunnel()	Returns a funnel for integers.
static Funnel<java.lang.Long>	longFunnel()	Returns a funnel for longs.
static <E> Funnel<java.lang.Iterable<? extends E>>	sequentialFunnel(Funnel<E> elementFunnel)	Returns a funnel that processes an Iterable by funneling its elements in iteration order with the specified funnel.
static Funnel<java.lang.CharSequence>	stringFunnel(java.nio.charset.Charset charset)	Returns a funnel that encodes the characters of a CharSequence with the specified Charset.
static Funnel<java.lang.CharSequence>	unencodedCharsFunnel()	Returns a funnel that extracts the characters from a CharSequence, a character at a time, without performing any encoding.

Methods inherited from class java.lang.Object

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

Method Detail

byteArrayFunnel

public static Funnel<byte[]> byteArrayFunnel()

Returns a funnel that extracts the bytes from a byte array.

unencodedCharsFunnel

public static Funnel<java.lang.CharSequence> unencodedCharsFunnel()

Returns a funnel that extracts the characters from a CharSequence, a character at a time, without performing any encoding. If you need to use a specific encoding, use stringFunnel(Charset) instead.

Since:

15.0 (since 11.0 as Funnels.stringFunnel().

stringFunnel

public static Funnel<java.lang.CharSequence> stringFunnel(java.nio.charset.Charset charset)

Returns a funnel that encodes the characters of a CharSequence with the specified Charset.

Since:

15.0

integerFunnel

public static Funnel<java.lang.Integer> integerFunnel()

Returns a funnel for integers.

Since:

13.0

sequentialFunnel

public static <E> Funnel<java.lang.Iterable<? extends E>> sequentialFunnel(Funnel<E> elementFunnel)

Returns a funnel that processes an Iterable by funneling its elements in iteration order with the specified funnel. No separators are added between the elements.

Since:

15.0

longFunnel

public static Funnel<java.lang.Long> longFunnel()

Returns a funnel for longs.

Since:

13.0

asOutputStream

public static java.io.OutputStream asOutputStream(PrimitiveSink sink)

Wraps a PrimitiveSink as an OutputStream, so it is easy to funnel an object to a PrimitiveSink if there is already a way to write the contents of the object to an OutputStream.

The close and flush methods of the returned OutputStream do nothing, and no method throws IOException.

Since:

13.0