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Interface DirectBufferPool.Options

Enclosing class:

DirectBufferPool

public static interface DirectBufferPool.Options

Options for provisioning the static instance of the DirectBufferPool.

Note: Since the DirectBufferPool.INSTANCE is static all of these options MUST be specified on the command line using -D to define the relevant property.

Note: The default configuration will never block but is not bounded in how many buffers it will allocate.

Version:

$Id$

Author:

Bryan Thompson

Field Summary

Fields

Modifier and Type	Field and Description
static String	BUFFER_CAPACITY The capacity in bytes of the direct ByteBuffer instances allocated and managed by the DirectBufferPool (DEFAULT_BUFFER_CAPACITY).
static String	DEBUG Option to use conservative assumptions about buffer release and to report allocation stack traces for undesired events (double-release, never released, etc).
static String	DEFAULT_BUFFER_CAPACITY The default capacity of the allocated buffers.
static String	DEFAULT_DEBUG
static String	DEFAULT_POOL_CAPACITY The default pool capacity (no limit).
static String	POOL_CAPACITY The capacity of the DirectBufferPool is the maximum #of direct ByteBuffer instances that may reside in the pool (default "2147483647").

Field Detail

POOL_CAPACITY

static final String POOL_CAPACITY

The capacity of the DirectBufferPool is the maximum #of direct ByteBuffer instances that may reside in the pool (default "2147483647").

Note: Placing a limit on the pool size could cause threads to deadlock awaiting a direct buffer from the pool. For this reason is it good practice to use DirectBufferPool.acquire(long, TimeUnit) with a timeout.

DEFAULT_POOL_CAPACITY

static final String DEFAULT_POOL_CAPACITY

The default pool capacity (no limit).

See Also:

Constant Field Values

BUFFER_CAPACITY

static final String BUFFER_CAPACITY

The capacity in bytes of the direct ByteBuffer instances allocated and managed by the DirectBufferPool (DEFAULT_BUFFER_CAPACITY).

DEFAULT_BUFFER_CAPACITY

static final String DEFAULT_BUFFER_CAPACITY

The default capacity of the allocated buffers.

See Also:

Constant Field Values

DEBUG

static final String DEBUG

Option to use conservative assumptions about buffer release and to report allocation stack traces for undesired events (double-release, never released, etc).

DEFAULT_DEBUG

static final String DEFAULT_DEBUG

See Also:

Constant Field Values