SerialBase (Oracle - Berkeley DB Java Edition API)
Date: 2014-12-16

com.sleepycat.bind.serial

## Class SerialBase

- java.lang.Object
- - com.sleepycat.bind.serial.SerialBase

- Direct Known Subclasses:
    SerialBinding

      public class SerialBase
      extends Object

  A base class for serial bindings creators that provides control over the allocation of the output buffer.

  Serial bindings append data to a `FastOutputStream` instance. This object has a byte array buffer that is resized when it is full. The reallocation of this buffer can be a performance factor for some applications using large objects. To manage this issue, the `setSerialBufferSize(int)` method may be used to control the initial size of the buffer, and the `getSerialOutput(java.lang.Object)` method may be overridden by subclasses to take over creation of the FastOutputStream object.

  Author:
    Mark Hayes
  See Also:
    Class Evolution

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `SerialBase()` Initializes the initial output buffer size to zero.

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `int` | `getSerialBufferSize()` Returns the initial byte size of the output buffer.
    `protected FastOutputStream` | `getSerialOutput(Object object)` Returns an empty SerialOutput instance that will be used by the serial binding or key creator.
    `void` | `setSerialBufferSize(int byteSize)` Sets the initial byte size of the output buffer that is allocated by the default implementation of `getSerialOutput(java.lang.Object)`.

    - ### Methods inherited from class java.lang.Object

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

- - ### Constructor Detail

    - #### SerialBase

          public SerialBase()

      Initializes the initial output buffer size to zero.

      Unless `setSerialBufferSize(int)` is called, the default `FastOutputStream.DEFAULT_INIT_SIZE` size will be used.

  - ### Method Detail

    - #### setSerialBufferSize

          public void setSerialBufferSize(int byteSize)

      Sets the initial byte size of the output buffer that is allocated by the default implementation of `getSerialOutput(java.lang.Object)`.

      If this property is zero (the default), the default `FastOutputStream.DEFAULT_INIT_SIZE` size is used.

      Parameters:
        `byteSize` - the initial byte size of the output buffer, or zero to use the default size.

    - #### getSerialBufferSize

          public int getSerialBufferSize()

      Returns the initial byte size of the output buffer.
      Returns:
        the initial byte size of the output buffer.
      See Also:
        `setSerialBufferSize(int)`

    - #### getSerialOutput

          protected FastOutputStream getSerialOutput(Object object)

      Returns an empty SerialOutput instance that will be used by the serial binding or key creator.

      The default implementation of this method creates a new SerialOutput with an initial buffer size that can be changed using the `setSerialBufferSize(int)` method.

      This method may be overridden to return a FastOutputStream instance. For example, an instance per thread could be created and returned by this method. If a FastOutputStream instance is reused, be sure to call its `FastOutputStream.reset()` method before each use.

      Parameters:
        `object` - is the object to be written to the serial output, and may be used by subclasses to determine the size of the output buffer.
      Returns:
        an empty FastOutputStream instance.
      See Also:
        `setSerialBufferSize(int)`

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