org.brandao.brcache

Enum MemoryAccessStrategy

java.lang.Object

java.lang.Enum<MemoryAccessStrategy>

org.brandao.brcache.MemoryAccessStrategy

All Implemented Interfaces:

Serializable, Comparable<MemoryAccessStrategy>

public enum MemoryAccessStrategy
extends Enum<MemoryAccessStrategy>

Descreve as estratégias de acesso à memória.

Author:

Brandao.

Enum Constant Summary

Enum Constants

Enum Constant and Description
DIRECT Os dados são gravados fora do heap.
HEAP Os dados são gravados no heap.
UNSAFE Os dados são gravados fora do heap.

Method Summary

Methods

Modifier and Type	Method and Description
static MemoryAccessStrategy	valueOf(String name) Returns the enum constant of this type with the specified name.
static MemoryAccessStrategy[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

HEAP

public static final MemoryAccessStrategy HEAP

Os dados são gravados no heap.

Equivale ao trecho a seguir:

segmentMemory = new byte[capacity];

DIRECT

public static final MemoryAccessStrategy DIRECT

Os dados são gravados fora do heap.

Equivale ao trecho a seguir:

segmentMemory = ByteBuffer.allocateDirect(capacity);

UNSAFE

public static final MemoryAccessStrategy UNSAFE

Os dados são gravados fora do heap.

Equivale ao trecho a seguir:

segmentMemory = Unsafe.allocateMemory(capacity);

Method Detail

values

public static MemoryAccessStrategy[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (MemoryAccessStrategy c : MemoryAccessStrategy.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static MemoryAccessStrategy valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null