Package org.aksw.commons.io.block.impl

Class PageManagerOverDataStreamSource

java.lang.Object

org.aksw.commons.io.block.impl.PageManagerOverDataStreamSource

All Implemented Interfaces:

BlockSource, PageManager

public class PageManagerOverDataStreamSource
extends Object
implements PageManager

Field Summary

Fields

Modifier and Type	Field	Description
protected long	lastPageId
protected ClaimingCache<Long,Page>	pageCache
protected int	pageSize
protected ReadableChannelSource<byte[]>	source
protected long	sourceSize

Constructor Summary

Constructors

Constructor	Description
PageManagerOverDataStreamSource(ReadableChannelSource<byte[]> source, int pageSize, AsyncClaimingCacheImpl.Builder<Long,Page> cacheBuilder)

Method Summary

Modifier and Type	Method	Description
long	getEndPos()	The maximum position in the underlying buffer
int	getPageSize()	The pageSize.
Page	loadPage(long pageId)
Ref<? extends Page>	requestBufferForPage(long pageId)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.aksw.commons.io.block.api.PageManager

contentAtOrAfter, contentAtOrBefore, getSizeOfBlock, hasBlockAfter, hasBlockBefore, size

Field Details

source

protected ReadableChannelSource<byte[]> source

pageSize

protected int pageSize

pageCache

protected ClaimingCache<Long,Page> pageCache

sourceSize

protected long sourceSize

lastPageId

protected long lastPageId

Constructor Details

PageManagerOverDataStreamSource

public PageManagerOverDataStreamSource(ReadableChannelSource<byte[]> source,
 int pageSize,
 AsyncClaimingCacheImpl.Builder<Long,Page> cacheBuilder)

Method Details

requestBufferForPage

public Ref<? extends Page> requestBufferForPage(long pageId)

Specified by:

requestBufferForPage in interface PageManager

loadPage

public Page loadPage(long pageId)

getPageSize

public int getPageSize()

Description copied from interface: PageManager

The pageSize. Must never change during the life time of a page manager.

Specified by:

getPageSize in interface PageManager

Returns:

getEndPos

public long getEndPos()

Description copied from interface: PageManager

The maximum position in the underlying buffer

Specified by:

getEndPos in interface PageManager

Returns: