LatinIME/native/jni/src/dictionary/structure/pt_common/pt_node_writer.h

98 lines
3.7 KiB
C++

/*
* Copyright (C) 2013, The Android Open Source Project
*
* 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 LATINIME_PT_NODE_WRITER_H
#define LATINIME_PT_NODE_WRITER_H
#include <unordered_map>
#include "defines.h"
#include "dictionary/structure/pt_common/pt_node_params.h"
#include "utils/int_array_view.h"
namespace latinime {
class NgramProperty;
class UnigramProperty;
// Interface class used to write PtNode information.
class PtNodeWriter {
public:
typedef std::unordered_map<int, int> PtNodeArrayPositionRelocationMap;
typedef std::unordered_map<int, int> PtNodePositionRelocationMap;
struct DictPositionRelocationMap {
public:
DictPositionRelocationMap()
: mPtNodeArrayPositionRelocationMap(), mPtNodePositionRelocationMap() {}
PtNodeArrayPositionRelocationMap mPtNodeArrayPositionRelocationMap;
PtNodePositionRelocationMap mPtNodePositionRelocationMap;
private:
DISALLOW_COPY_AND_ASSIGN(DictPositionRelocationMap);
};
virtual ~PtNodeWriter() {}
virtual bool markPtNodeAsDeleted(const PtNodeParams *const toBeUpdatedPtNodeParams) = 0;
virtual bool markPtNodeAsMoved(const PtNodeParams *const toBeUpdatedPtNodeParams,
const int movedPos, const int bigramLinkedNodePos) = 0;
virtual bool markPtNodeAsWillBecomeNonTerminal(
const PtNodeParams *const toBeUpdatedPtNodeParams) = 0;
virtual bool updatePtNodeUnigramProperty(const PtNodeParams *const toBeUpdatedPtNodeParams,
const UnigramProperty *const unigramProperty) = 0;
virtual bool updatePtNodeProbabilityAndGetNeedsToKeepPtNodeAfterGC(
const PtNodeParams *const toBeUpdatedPtNodeParams,
bool *const outNeedsToKeepPtNode) = 0;
virtual bool updateChildrenPosition(const PtNodeParams *const toBeUpdatedPtNodeParams,
const int newChildrenPosition) = 0;
virtual bool writePtNodeAndAdvancePosition(const PtNodeParams *const ptNodeParams,
int *const ptNodeWritingPos) = 0;
virtual bool writeNewTerminalPtNodeAndAdvancePosition(const PtNodeParams *const ptNodeParams,
const UnigramProperty *const unigramProperty, int *const ptNodeWritingPos) = 0;
virtual bool addNgramEntry(const WordIdArrayView prevWordIds, const int wordId,
const NgramProperty *const ngramProperty, bool *const outAddedNewEntry) = 0;
virtual bool removeNgramEntry(const WordIdArrayView prevWordIds, const int wordId) = 0;
virtual bool updateAllBigramEntriesAndDeleteUselessEntries(
const PtNodeParams *const sourcePtNodeParams, int *const outBigramEntryCount) = 0;
virtual bool updateAllPositionFields(const PtNodeParams *const toBeUpdatedPtNodeParams,
const DictPositionRelocationMap *const dictPositionRelocationMap,
int *const outBigramEntryCount) = 0;
virtual bool addShortcutTarget(const PtNodeParams *const ptNodeParams,
const int *const targetCodePoints, const int targetCodePointCount,
const int shortcutProbability) = 0;
protected:
PtNodeWriter() {};
private:
DISALLOW_COPY_AND_ASSIGN(PtNodeWriter);
};
} // namespace latinime
#endif /* LATINIME_PT_NODE_WRITER_H */