NAME

WordRecord - inverted index record.

SYNOPSIS

#include <WordRecord.h>
WordContext* context;
WordRecord* record = context->Record();
if(record->DefaultType() == WORD_RECORD_DATA) {
  record->info.data = 120;
} else if(record->DefaultType() == WORD_RECORD_STR) {
  record->info.str = "foobar";
}
delete record;

DESCRIPTION

The record can contain an integer, if the default record type (see CONFIGURATION in WordKeyInfo ) is set to DATA or a string if set to STR. If the type is set to NONE the record does not contain any usable information.

Although constructors may be used, the prefered way to create a WordRecord object is by using the WordContext::Record method.

ASCII FORMAT

If default type is DATA it is the decimal representation of an integer. If default type is NONE it is the empty string.

METHODS

inline WordRecord(WordContext* ncontext): Constructor. Build an empty record. The ncontext argument must be a pointer to a valid WordContext object.
inline void Clear(): Reset to empty and set the type to the default specified in the configuration.
inline int DefaultType(): Return the default type WORD_RECORD_{DATA,STR,NONE}
inline int Pack(String& packed) const: Convert the object to a representation for disk storage written in the packed string. Return OK on success, NOTOK otherwise.
inline int Unpack(const char* string, int length): Alias for Unpack(String(string, length))
inline int Unpack(const String& packed): Read the object from a representation for disk storage contained in the packed argument. Return OK on success, NOTOK otherwise.
int Set(const String& bufferin): Set the whole structure from ASCII string description stored in the bufferin argument. Return OK on success, NOTOK otherwise.
int Get(String& bufferout) const: Convert the whole structure to an ASCII string description and return it in the bufferout argument. Return OK on success, NOTOK otherwise.
String Get() const: Convert the whole structure to an ASCII string description and return it.
inline WordContext* GetContext(): Return a pointer to the WordContext object used to create this instance.
inline const WordContext* GetContext() const: Return a pointer to the WordContext object used to create this instance as a const.
int Write(FILE* f) const: Print object in ASCII form on descriptor f using the Get method.

AUTHORS

Loic Dachary loic@gnu.org