com.complexible.common.memory.buffer

Class LongByteBuffers

java.lang.Object

com.complexible.common.memory.buffer.LongByteBuffers

public final class LongByteBuffers
extends Object

Utility class for working with LongByteBuffer

Since:

2.1

Version:

2.1

Author:

Michael Grove

Method Summary

Modifier and Type	Method and Description
static LongByteBuffer	dynamicHeap()
static LongByteBuffer	dynamicHeap(long theSize)
static LongByteBuffer	empty() Return an empty buffer
static MemoryLongByteBuffer	heap(byte[] theBuffer)
static MemoryLongByteBuffer	heap(long theSize)
static OffHeapLongByteBuffer	offHeap(long theLength) Allocate new LongByteBuffer backed by unsafe from the system memory pool.
static OffHeapLongByteBuffer	offHeap(MemoryPool thePool, long theLength) Allocate a new LongByteBuffer backed by unsafe.
static OffHeapLongByteBuffer	offHeap(MemoryPool thePool, long theLength, boolean theChecked) Allocate a new LongByteBuffer backed by unsafe.
static OffHeapLongByteBuffer	offHeap(MemoryPool thePool, long theAddress, long theLength)
static OffHeapLongByteBuffer	offHeap(MemoryPool thePool, long theAddress, long theLength, boolean theChecked)
static byte[]	toByteArray(LongByteBuffer theBuffer) Copy the buffer to a byte array

Methods inherited from class java.lang.Object

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

Method Detail

empty

public static LongByteBuffer empty()

Return an empty buffer

Returns:

an empty buffer

toByteArray

public static byte[] toByteArray(LongByteBuffer theBuffer)

Copy the buffer to a byte array

Parameters:

theBuffer - the buffer to copy

Returns:

the contents of the buffer as a byte array

dynamicHeap

public static LongByteBuffer dynamicHeap()

dynamicHeap

public static LongByteBuffer dynamicHeap(long theSize)

heap

public static MemoryLongByteBuffer heap(long theSize)

heap

public static MemoryLongByteBuffer heap(byte[] theBuffer)

offHeap

public static OffHeapLongByteBuffer offHeap(long theLength)

Allocate new LongByteBuffer backed by unsafe from the system memory pool.

Parameters:

theLength - the size of the new buffer

Returns:

the buffer

offHeap

public static OffHeapLongByteBuffer offHeap(MemoryPool thePool,
                                            long theLength)

Allocate a new LongByteBuffer backed by unsafe.

Parameters:

thePool - the pool to allocate from

theLength - the size of the buffer

Returns:

the buffer

Throws:

NotEnoughMemoryException - if the buffer cannot be allocated

IllegalStateException - if Unsafe is not available on the system

offHeap

public static OffHeapLongByteBuffer offHeap(MemoryPool thePool,
                                            long theLength,
                                            boolean theChecked)

Allocate a new LongByteBuffer backed by unsafe.

Parameters:

thePool - the pool to allocate from

theLength - the size of the buffer

theChecked - whether or not the buffer should perform bounds checks. unchecked buffers are faster, but even more unsafe than a checked unsafe buffer. Use only in situations where bounds are already checked.

Returns:

the buffer

Throws:

NotEnoughMemoryException - if the buffer cannot be allocated

IllegalStateException - if Unsafe is not available on the system

offHeap

public static OffHeapLongByteBuffer offHeap(MemoryPool thePool,
                                            long theAddress,
                                            long theLength)

offHeap

public static OffHeapLongByteBuffer offHeap(MemoryPool thePool,
                                            long theAddress,
                                            long theLength,
                                            boolean theChecked)