IndexInput.h

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// Copyright (c) 2009-2014 Alan Wright. All rights reserved.
// Distributable under the terms of either the Apache License (Version 2.0)
// or the GNU Lesser General Public License.
 
#ifndef INDEXINPUT_H
#define INDEXINPUT_H
 
#include "LuceneObject.h"
 
namespace Lucene {

class LPPAPI IndexInput : public LuceneObject {
public:
    IndexInput();
    virtual ~IndexInput();
 
    LUCENE_CLASS(IndexInput);
 
protected:
    bool preUTF8Strings; // true if we are reading old (modified UTF8) string format
 
public:
    virtual uint8_t readByte() = 0;

    virtual void readBytes(uint8_t* b, int32_t offset, int32_t length) = 0;

    virtual void readBytes(uint8_t* b, int32_t offset, int32_t length, bool useBuffer);

    virtual int32_t readInt();

    virtual int32_t readVInt();

    virtual int64_t readLong();

    virtual int64_t readVLong();

    virtual void setModifiedUTF8StringsMode();

    virtual String readString();

    virtual String readModifiedUTF8String();

    virtual int32_t readChars(wchar_t* buffer, int32_t start, int32_t length);

    virtual void skipChars(int32_t length);

    virtual void close() = 0;

    virtual int64_t getFilePointer() = 0;

    virtual void seek(int64_t pos) = 0;

    virtual int64_t length() = 0;

    virtual LuceneObjectPtr clone(const LuceneObjectPtr& other = LuceneObjectPtr());

    virtual MapStringString readStringStringMap();
};
 
}
 
#endif