SegPageEntryIterSource< EntryT > Class Template Reference

SegPageEntryIterSource provides the callback method that supplies pre-fetch pageIds for SegPageEntryIter. More...

#include <SegPageEntryIterSource.h>

List of all members.

Public Member Functions
virtual	~SegPageEntryIterSource ()
virtual void	initPrefetchEntry (EntryT &entry)
	Initializes a specific entry in the pre-fetch queue.
virtual PageId	getNextPageForPrefetch (EntryT &entry, bool &found)=0
	Retrieves the next pageId to be pre-fetched, also filling in context- specific information associated with the page.

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Detailed Description

template<class EntryT>
class SegPageEntryIterSource< EntryT >

SegPageEntryIterSource provides the callback method that supplies pre-fetch pageIds for SegPageEntryIter.

Definition at line 34 of file SegPageEntryIterSource.h.

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Constructor & Destructor Documentation

template<class EntryT>

virtual SegPageEntryIterSource< EntryT >::~SegPageEntryIterSource

(

)

[inline, virtual]

Definition at line 37 of file SegPageEntryIterSource.h.

    {
    }

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Member Function Documentation

template<class EntryT>

virtual void SegPageEntryIterSource< EntryT >::initPrefetchEntry

(

EntryT &

entry

)

[inline, virtual]

Initializes a specific entry in the pre-fetch queue.

Parameters:

entry

the entry that will be initialized

Reimplemented in BTreePrefetchSearchExecStream.

Definition at line 46 of file SegPageEntryIterSource.h.

Referenced by SegPageEntryIter< EntryT >::setPrefetchSource().

    {
    }

template<class EntryT>

virtual PageId SegPageEntryIterSource< EntryT >::getNextPageForPrefetch	(	EntryT &	entry,
		bool &	found
	)			[pure virtual]

Retrieves the next pageId to be pre-fetched, also filling in context- specific information associated with the page.

Parameters:

[in,out]	entry	the context-specific information to be filled in
[out]	found	true if a pageId has been found and should be added to the pre-fetch queue

Returns:

the prefetch pageId

Implemented in BTreePrefetchSearchExecStream, LcsClusterReader, and MockSegPageEntryIterSource.

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The documentation for this class was generated from the following file:

• /home/pub/open/dev/fennel/segment/SegPageEntryIterSource.h

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