net.openhft.chronicle.hash.hashing

Class Accesses

java.lang.Object

net.openhft.chronicle.hash.hashing.Accesses

public final class Accesses
extends Object

Static methods returning useful Access implementations.

Method Summary

Methods

Modifier and Type	Method and Description
static Access<ByteBuffer>	toByteBuffer() Returns the Access to any ByteBuffer.
static Access<Bytes>	toBytes()
static <T> Access<T>	unsafe() Returns the Access delegating getXXX(input, offset) methods to sun.misc.Unsafe.getXXX(input, offset).

Methods inherited from class java.lang.Object

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

Method Detail

unsafe

public static <T> Access<T> unsafe()

Returns the Access delegating getXXX(input, offset) methods to sun.misc.Unsafe.getXXX(input, offset).

Usage example:

class Pair {
     long first, second;
 <p>
     static final long pairDataOffset =
         theUnsafe.objectFieldOffset(Pair.class.getDeclaredField("first"));
 <p>
     static long hashPair(Pair pair, LongHashFunction hashFunction) {
         return hashFunction.hash(pair, Accesses.unsafe(), pairDataOffset, 16L);
     }
 }

null is a valid input, on accepting null Unsafe just interprets the given offset as a wild memory address.

Type Parameters:

T - the type of objects to access

Returns:

the unsafe memory Access

toByteBuffer

public static Access<ByteBuffer> toByteBuffer()

Returns the Access to any ByteBuffer.

Returns:

the Access to ByteBuffers

toBytes

public static Access<Bytes> toBytes()