leveldb::InternalFilterPolicy Class Reference

#include <dbformat.h>

Inheritance diagram for leveldb::InternalFilterPolicy:

Collaboration diagram for leveldb::InternalFilterPolicy:

Public Member Functions
	InternalFilterPolicy (const FilterPolicy *p)
virtual const char *	Name () const
virtual void	CreateFilter (const Slice *keys, int n, std::string *dst) const
virtual bool	KeyMayMatch (const Slice &key, const Slice &filter) const
Public Member Functions inherited from leveldb::FilterPolicy
virtual	~FilterPolicy ()

Private Attributes
const FilterPolicy *const	user_policy_

Detailed Description

Definition at line 131 of file dbformat.h.

Constructor & Destructor Documentation

InternalFilterPolicy()

leveldb::InternalFilterPolicy::InternalFilterPolicy ( const FilterPolicy *  p )

inlineexplicit

Definition at line 135 of file dbformat.h.

: user_policy_(p) { }

Member Function Documentation

CreateFilter()

void leveldb::InternalFilterPolicy::CreateFilter ( const Slice *  keys, int  n, std::string *  dst  ) const

virtual

Implements leveldb::FilterPolicy.

Definition at line 105 of file dbformat.cc.

                                                              {
  // We rely on the fact that the code in table.cc does not mind us
  // adjusting keys[].
  Slice* mkey = const_cast<Slice*>(keys);
  for (int i = 0; i < n; i++) {
    mkey[i] = ExtractUserKey(keys[i]);
    // TODO(sanjay): Suppress dups?
  }
  user_policy_->CreateFilter(keys, n, dst);
}

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KeyMayMatch()

bool leveldb::InternalFilterPolicy::KeyMayMatch ( const Slice &  key, const Slice &  filter  ) const

virtual

Implements leveldb::FilterPolicy.

Definition at line 117 of file dbformat.cc.

                                                                             {
  return user_policy_->KeyMayMatch(ExtractUserKey(key), f);
}

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Name()

const char * leveldb::InternalFilterPolicy::Name ( ) const

virtual

Implements leveldb::FilterPolicy.

Definition at line 101 of file dbformat.cc.

                                             {
  return user_policy_->Name();
}

Member Data Documentation

user_policy_

const FilterPolicy* const leveldb::InternalFilterPolicy::user_policy_

private

Definition at line 133 of file dbformat.h.

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

• db/dbformat.h
• db/dbformat.cc