b52dbe0636
git-svn-id: svn+ssh://svn.corp.yahoo.com/yahoo/yrl/labs/pnuts/code/logstore@3786 8dad8b1f-cf64-0410-95b6-bcf113ffbcfe
51 lines
1.1 KiB
C++
51 lines
1.1 KiB
C++
/*
|
|
* merger.cpp
|
|
*
|
|
* Copyright 2009-2012 Yahoo! Inc.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
*/
|
|
#ifndef _TUPLE_MERGER_H_
|
|
#define _TUPLE_MERGER_H_
|
|
|
|
struct dataTuple;
|
|
|
|
typedef dataTuple* (*merge_fn_t) (const dataTuple*, const dataTuple *);
|
|
|
|
dataTuple* append_merger(const dataTuple *t1, const dataTuple *t2);
|
|
dataTuple* replace_merger(const dataTuple *t1, const dataTuple *t2);
|
|
|
|
|
|
class tupleMerger
|
|
{
|
|
|
|
public:
|
|
|
|
tupleMerger(merge_fn_t merge_fp)
|
|
{
|
|
this->merge_fp = merge_fp;
|
|
}
|
|
|
|
|
|
dataTuple* merge(const dataTuple *t1, const dataTuple *t2);
|
|
|
|
private:
|
|
|
|
merge_fn_t merge_fp;
|
|
|
|
};
|
|
|
|
|
|
|
|
#endif
|