Storage Engine API
record_fetcher.h
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1 
29 #pragma once
30 
31 namespace mongo {
32 
33 class OperationContext;
34 
40 class RecordFetcher {
41 public:
42  virtual ~RecordFetcher() {}
43 
47  virtual void setup(OperationContext* opCtx) = 0;
48 
54  virtual void fetch() = 0;
55 };
56 
57 } // namespace mongo
mongo::RecordFetcher
Used for yielding while data is fetched from disk.
Definition: record_fetcher.h:40
mongo::RecordFetcher::~RecordFetcher
virtual ~RecordFetcher()
Definition: record_fetcher.h:42
mongo
Copyright (C) 2014 MongoDB Inc.
Definition: bson_collection_catalog_entry.cpp:38
mongo::RecordFetcher::fetch
virtual void fetch()=0
Called after locks are yielded in order to bring data into memory.
mongo::RecordFetcher::setup
virtual void setup(OperationContext *opCtx)=0
Performs any setup which is needed prior to yielding locks.
mongo::opCtx
Collection *const OperationContext *const opCtx
Definition: collection_impl.cpp:80