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      1 /*
      2  * Copyright (C) 2014, The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *     http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef LATINIME_PT_NODE_ARRAY_READER_H
     18 #define LATINIME_PT_NODE_ARRAY_READER_H
     19 
     20 #include "defines.h"
     21 
     22 namespace latinime {
     23 
     24 // Interface class used to read PtNode array information.
     25 class PtNodeArrayReader {
     26  public:
     27     virtual ~PtNodeArrayReader() {}
     28 
     29     // Returns if the position is valid or not.
     30     virtual bool readPtNodeArrayInfoAndReturnIfValid(const int ptNodeArrayPos,
     31             int *const outPtNodeCount, int *const outFirstPtNodePos) const = 0;
     32 
     33     // Returns if the position is valid or not. NOT_A_DICT_POS is set to outNextPtNodeArrayPos when
     34     // the next array doesn't exist.
     35     virtual bool readForwardLinkAndReturnIfValid(const int forwordLinkPos,
     36             int *const outNextPtNodeArrayPos) const = 0;
     37 
     38  protected:
     39     PtNodeArrayReader() {};
     40 
     41  private:
     42     DISALLOW_COPY_AND_ASSIGN(PtNodeArrayReader);
     43 };
     44 } // namespace latinime
     45 #endif /* LATINIME_PT_NODE_READER_H */
     46