Package org.fusesource.leveldbjni.internal

Class NativeBuffer

java.lang.Object

org.fusesource.leveldbjni.internal.NativeObject

org.fusesource.leveldbjni.internal.NativeBuffer

public class NativeBuffer
extends NativeObject

A NativeBuffer allocates a native buffer on the heap. It supports creating sub slices/views of that buffer and manages reference tracking so that the the native buffer is freed once all NativeBuffer views are deleted.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	NativeBuffer.Allocation
(package private) static class	NativeBuffer.NativeBufferJNI
private static class	NativeBuffer.Pool

Field Summary

Fields

Modifier and Type	Field	Description
private final NativeBuffer.Allocation	allocation
private final long	capacity
private static final ThreadLocal<NativeBuffer.Pool>	CURRENT_POOL

Fields inherited from class org.fusesource.leveldbjni.internal.NativeObject

self

Constructor Summary

Constructors

Modifier	Constructor	Description
private	NativeBuffer(NativeBuffer.Allocation allocation, long self, long capacity)

Method Summary

Modifier and Type	Method	Description
long	capacity()
(package private) static byte[]	cbytes(String strvalue)
static NativeBuffer	create(byte[] data)
static NativeBuffer	create(byte[] data, int offset, int length)
static NativeBuffer	create(long capacity)
static NativeBuffer	create(String data)
void	delete()
NativeBuffer	head(long length)
static void	popMemoryPool()
static void	pushMemoryPool(int size)
void	read(long at, byte[] target, int offset, int length)
NativeBuffer	slice(long offset, long length)
NativeBuffer	tail(long length)
byte[]	toByteArray()
void	write(long at, byte[] source, int offset, int length)

Methods inherited from class org.fusesource.leveldbjni.internal.NativeObject

assertAllocated, isAllocated, pointer

Methods inherited from class java.lang.Object

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

Field Details

allocation

private final NativeBuffer.Allocation allocation

capacity

private final long capacity

CURRENT_POOL

private static final ThreadLocal<NativeBuffer.Pool> CURRENT_POOL

Constructor Details

NativeBuffer

private NativeBuffer(NativeBuffer.Allocation allocation,
 long self,
 long capacity)

Method Details

create

public static NativeBuffer create(long capacity)

pushMemoryPool

public static void pushMemoryPool(int size)

popMemoryPool

public static void popMemoryPool()

create

public static NativeBuffer create(byte[] data)

create

public static NativeBuffer create(String data)

create

public static NativeBuffer create(byte[] data,
 int offset,
 int length)

slice

public NativeBuffer slice(long offset,
 long length)

cbytes

static byte[] cbytes(String strvalue)

head

public NativeBuffer head(long length)

tail

public NativeBuffer tail(long length)

delete

public void delete()

capacity

public long capacity()

write

public void write(long at,
 byte[] source,
 int offset,
 int length)

read

public void read(long at,
 byte[] target,
 int offset,
 int length)

toByteArray

public byte[] toByteArray()