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ByteSliceReader.h
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1 // Copyright (c) 2009-2014 Alan Wright. All rights reserved.
3 // Distributable under the terms of either the Apache License (Version 2.0)
4 // or the GNU Lesser General Public License.
6 
7 #ifndef BYTESLICEREADER_H
8 #define BYTESLICEREADER_H
9 
10 #include "IndexInput.h"
11 
12 namespace Lucene {
13 
16 class LPPAPI ByteSliceReader : public IndexInput {
17 public:
19  virtual ~ByteSliceReader();
20 
22 
23 public:
25  int32_t bufferUpto;
26  ByteArray buffer;
27  int32_t upto;
28  int32_t limit;
29  int32_t level;
30  int32_t bufferOffset;
31  int32_t endIndex;
32 
33 public:
34  void init(const ByteBlockPoolPtr& pool, int32_t startIndex, int32_t endIndex);
35  bool eof();
36 
38  virtual uint8_t readByte();
39 
40  int64_t writeTo(const IndexOutputPtr& out);
41 
42  void nextSlice();
43 
45  virtual void readBytes(uint8_t* b, int32_t offset, int32_t length);
46 
48  virtual int64_t getFilePointer();
49 
51  virtual int64_t length();
52 
54  virtual void seek(int64_t pos);
55 
57  virtual void close();
58 };
59 
60 }
61 
62 #endif
#define LUCENE_CLASS(Name)
Definition: LuceneObject.h:24
IndexInput that knows how to read the byte slices written by Posting and PostingVector....
Definition: ByteSliceReader.h:16
int32_t bufferUpto
Definition: ByteSliceReader.h:25
virtual uint8_t readByte()
Reads and returns a single byte.
virtual int64_t getFilePointer()
Not implemented.
int32_t level
Definition: ByteSliceReader.h:29
virtual int64_t length()
Not implemented.
void init(const ByteBlockPoolPtr &pool, int32_t startIndex, int32_t endIndex)
virtual void readBytes(uint8_t *b, int32_t offset, int32_t length)
Reads a specified number of bytes into an array at the specified offset.
int32_t limit
Definition: ByteSliceReader.h:28
int32_t endIndex
Definition: ByteSliceReader.h:31
virtual void close()
Not implemented.
virtual void seek(int64_t pos)
Not implemented.
ByteBlockPoolPtr pool
Definition: ByteSliceReader.h:21
ByteArray buffer
Definition: ByteSliceReader.h:26
int64_t writeTo(const IndexOutputPtr &out)
int32_t bufferOffset
Definition: ByteSliceReader.h:30
int32_t upto
Definition: ByteSliceReader.h:27
Abstract base class for input from a file in a Directory. A random-access input stream....
Definition: IndexInput.h:17
Definition: AbstractAllTermDocs.h:12
boost::shared_ptr< ByteBlockPool > ByteBlockPoolPtr
Definition: LuceneTypes.h:89
boost::shared_ptr< IndexOutput > IndexOutputPtr
Definition: LuceneTypes.h:494

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