https://github.com/dopsun/bbutils

java.nio.ByteBuffer related utilities.
https://github.com/dopsun/bbutils

Last synced: 5 months ago
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java.nio.ByteBuffer related utilities.

• Host: GitHub
• URL: https://github.com/dopsun/bbutils
• Owner: dopsun
• License: apache-2.0
• Created: 2017-01-11T13:49:26.000Z (over 9 years ago)
• Default Branch: develop
• Last Pushed: 2017-03-15T13:06:16.000Z (over 9 years ago)
• Last Synced: 2025-07-22T11:56:56.920Z (11 months ago)
• Language: Java
• Size: 66.4 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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# bbutils

[![Build Status](https://travis-ci.org/dopsun/bbutils.svg?branch=master)](https://travis-ci.org/dopsun/bbutils)

java.nio.ByteBuffer related utilities.

## Buffer, FixedBuffer and AutoBuffer

* [Buffer](bbutils/src/main/java/com/dopsun/bbutils/Buffer.java) a buffer inspired from ``java.nio.ByteBuffer``.

  * [FixedBuffer](bbutils/src/main/java/com/dopsun/bbutils/FixedBuffer.java): a buffer with fixed size.

  * [AutoBuffer](bbutils/src/main/java/com/dopsun/bbutils/AutoBuffer.java): a buffer grows when required.

  * [Buffers](bbutils/src/main/java/com/dopsun/bbutils/Buffers.java): factory methods for ``Buffer``.

### FixedBuffer

``FixedBuffer`` is an abstraction similar to ``java.nio.ByteBuffer``. Refer to [FixedBuffer](bbutils/src/main/java/com/dopsun/bbutils/FixedBuffer.java) to find out details.

### AutoBuffer

There are 3 types of auto buffer:

* [Arithmetic Progression (AP)](https://en.wikipedia.org/wiki/Arithmetic_progression): grows following AP sequences, with initial capacity and difference.

  * Factory method: ``Buffers.apAutoBuffer(Allocator allocator, int initCapacity, int difference)``

* [Geometric Progression (GP)](https://en.wikipedia.org/wiki/Geometric_progression): grows following GP sequences, with initial capacity and ratio.

  * Factory method: ``Buffers.gpAutoBuffer(Allocator allocator, int initCapacity, double ratio)``

* [Power of 2 (POW2)](https://en.wikipedia.org/wiki/Power_of_two): grows with double capacity.

  * Factory method: ``Buffers.pow2AutoBuffer(Allocator allocator, int initCapacity)``

## Allocator

* [Allocator](bbutils/src/main/java/com/dopsun/bbutils/Allocator.java) allocator for ``Buffer``.

  * [FixedBufferAllocator](bbutils/src/main/java/com/dopsun/bbutils/FixedBufferAllocator.java): allocator for ``FixedBufferAllocator``.

* [Allocators](bbutils/src/main/java/com/dopsun/bbutils/Allocators.java): factory methods for ``Allocator``.

  * Allocator from pool: ``Allocators.fromPool(IntFunction poolFactory)``

## Pool

* [Pool](bbutils/src/main/java/com/dopsun/bbutils/Pool.java) pool for ``Buffer``.

  * [FixedBufferPool](bbutils/src/main/java/com/dopsun/bbutils/FixedBufferPool.java) pool for ``FixedBufferAllocator``.

* [Pools](bbutils/src/main/java/com/dopsun/bbutils/Pools.java) factory methods for ``Pool``.

  * Pool from allocator:

    * ``Pools.fromAllocator(FixedBufferAllocator allocator, int bufferCapacity)``

    * ``Pools.fromAllocator(FixedBufferAllocator allocator, int bufferCapacity, int initSize)``