net.kuujo.catalyst.buffer

Class DirectBuffer

java.lang.Object

net.kuujo.catalyst.buffer.AbstractBuffer

net.kuujo.catalyst.buffer.NativeBuffer

net.kuujo.catalyst.buffer.DirectBuffer

All Implemented Interfaces:

AutoCloseable, Buffer, BufferInput<Buffer>, BufferOutput<Buffer>, BytesInput<Buffer>, BytesOutput<Buffer>, ReferenceCounted<Buffer>

public class DirectBuffer
extends NativeBuffer

Direct ByteBuffer based buffer.

Author:

Jordan Halterman

Method Summary

Modifier and Type	Method and Description
static DirectBuffer	allocate() Allocates a direct buffer with an initial capacity of 4096 and a maximum capacity of Long.MAX_VALUE.
static DirectBuffer	allocate(long initialCapacity) Allocates a direct buffer with the given initial capacity.
static DirectBuffer	allocate(long initialCapacity, long maxCapacity) Allocates a new direct buffer.

Methods inherited from class net.kuujo.catalyst.buffer.AbstractBuffer

acquire, asReadOnlyBuffer, bytes, capacity, capacity, clear, close, compact, flip, flush, hasRemaining, isDirect, isFile, isReadOnly, limit, limit, mark, maxCapacity, offset, order, order, position, position, read, read, read, read, read, read, read, readBoolean, readBoolean, readByte, readByte, readChar, readChar, readDouble, readDouble, readFloat, readFloat, readInt, readInt, readLong, readLong, readMedium, readMedium, readShort, readShort, readString, readString, readUnsignedByte, readUnsignedByte, readUnsignedInt, readUnsignedInt, readUnsignedMedium, readUnsignedMedium, readUnsignedShort, readUnsignedShort, readUTF8, readUTF8, references, release, remaining, reset, rewind, skip, slice, slice, slice, write, write, write, write, write, write, write, writeBoolean, writeBoolean, writeByte, writeByte, writeChar, writeChar, writeDouble, writeDouble, writeFloat, writeFloat, writeInt, writeInt, writeLong, writeLong, writeMedium, writeMedium, writeShort, writeShort, writeString, writeString, writeUnsignedByte, writeUnsignedByte, writeUnsignedInt, writeUnsignedInt, writeUnsignedMedium, writeUnsignedMedium, writeUnsignedShort, writeUnsignedShort, writeUTF8, writeUTF8, zero, zero, zero

Methods inherited from class java.lang.Object

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

Method Detail

allocate

public static DirectBuffer allocate()

Allocates a direct buffer with an initial capacity of 4096 and a maximum capacity of Long.MAX_VALUE.

When the buffer is constructed, DirectMemoryAllocator will be used to allocate capacity bytes of off-heap memory. The resulting buffer will be initialized with a capacity of 4096 and have a maximum capacity of Long.MAX_VALUE. The buffer's capacity will dynamically expand as bytes are written to the buffer. The underlying DirectBytes will be initialized to the next power of 2.

Returns:

The direct buffer.

See Also:

allocate(long), allocate(long, long)

allocate

public static DirectBuffer allocate(long initialCapacity)

Allocates a direct buffer with the given initial capacity.

When the buffer is constructed, DirectMemoryAllocator will be used to allocate capacity bytes of off-heap memory. The resulting buffer will have an initial capacity of capacity. The underlying DirectBytes will be initialized to the next power of 2.

Parameters:

initialCapacity - The initial capacity of the buffer to allocate (in bytes).

Returns:

The direct buffer.

Throws:

IllegalArgumentException - If capacity is greater than the maximum allowed count for a ByteBuffer - Integer.MAX_VALUE - 5

See Also:

allocate(), allocate(long, long)

allocate

public static DirectBuffer allocate(long initialCapacity,
                                    long maxCapacity)

Allocates a new direct buffer.

When the buffer is constructed, DirectMemoryAllocator will be used to allocate capacity bytes of off-heap memory. The resulting buffer will have an initial capacity of initialCapacity and will be doubled up to maxCapacity as bytes are written to the buffer. The underlying DirectBytes will be initialized to the next power of 2.

Parameters:

initialCapacity - The initial capacity of the buffer to allocate (in bytes).

maxCapacity - The maximum capacity of the buffer.

Returns:

The direct buffer.

Throws:

IllegalArgumentException - If capacity or maxCapacity is greater than the maximum allowed count for a ByteBuffer - Integer.MAX_VALUE - 5

See Also:

allocate(), allocate(long)