org.archive.crawler.frontier

Class RecyclingSerialBinding<K>

java.lang.Object

com.sleepycat.bind.serial.SerialBase

com.sleepycat.bind.serial.SerialBinding<K>

org.archive.crawler.frontier.RecyclingSerialBinding<K>

All Implemented Interfaces:

com.sleepycat.bind.EntryBinding<K>

public class RecyclingSerialBinding<K>
extends com.sleepycat.bind.serial.SerialBinding<K>

A SerialBinding that recycles a single FastOutputStream per thread, avoiding reallocation of the internal buffer for either repeated serializations or because of mid-serialization expansions. (Cached stream's buffer will quickly grow to a size sufficient for all serialized instances.)

Author:

gojomo

Field Summary

Fields

Modifier and Type	Field and Description
protected ThreadLocal<com.sleepycat.util.FastOutputStream>	fastOutputStreamHolder Thread-local cache of reusable FastOutputStream

Constructor Summary

Constructors

Constructor and Description
RecyclingSerialBinding(com.sleepycat.bind.serial.ClassCatalog classCatalog, Class baseClass) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
void	objectToEntry(Object object, com.sleepycat.je.DatabaseEntry entry) Copies superclass simply to allow different source for FastOoutputStream.

Methods inherited from class com.sleepycat.bind.serial.SerialBinding

entryToObject, getBaseClass, getClassLoader

Methods inherited from class com.sleepycat.bind.serial.SerialBase

getSerialBufferSize, getSerialOutput, setSerialBufferSize

Methods inherited from class java.lang.Object

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

Field Detail

fastOutputStreamHolder

protected ThreadLocal<com.sleepycat.util.FastOutputStream> fastOutputStreamHolder

Thread-local cache of reusable FastOutputStream

Constructor Detail

RecyclingSerialBinding

public RecyclingSerialBinding(com.sleepycat.bind.serial.ClassCatalog classCatalog,
                      Class baseClass)

Constructor. Save parameters locally, as superclass fields are private.

Parameters:

classCatalog - is the catalog to hold shared class information

baseClass - is the base class for serialized objects stored using this binding

Method Detail

objectToEntry

public void objectToEntry(Object object,
                 com.sleepycat.je.DatabaseEntry entry)

Copies superclass simply to allow different source for FastOoutputStream.

Specified by:

objectToEntry in interface com.sleepycat.bind.EntryBinding<K>

Overrides:

objectToEntry in class com.sleepycat.bind.serial.SerialBinding<K>

See Also:

SerialBinding.entryToObject(com.sleepycat.je.DatabaseEntry)