Class Funnels

java.lang.Object
com.google.common.hash.Funnels
@Beta public final class Funnels extends Object
Funnels for common types. All implementations are serializable.
Since:
11.0
Author:
Dimitris Andreou

  • Method Details

    • byteArrayFunnel

      public static Funnel<byte[]> byteArrayFunnel()
      Returns a funnel that extracts the bytes from a byte array.

    • unencodedCharsFunnel

      public static Funnel<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<CharSequence> stringFunnel(Charset charset)
      Returns a funnel that encodes the characters of a CharSequence with the specified Charset.
      Since:
      15.0

    • integerFunnel

      public static Funnel<Integer> integerFunnel()
      Returns a funnel for integers.
      Since:
      13.0

    • sequentialFunnel

      public static <E extends @Nullable Object> Funnel<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<Long> longFunnel()
      Returns a funnel for longs.
      Since:
      13.0

    • asOutputStream

      public static 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