Public Member Functions

Barry::MimeBuilder Class Reference

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List of all members.

Public Member Functions

bool BuildRecord (DBData &data, size_t &offset, const IConverter *ic)
 Called to build the record field data.
bool FetchRecord (DBData &data, const IConverter *ic)
 Same as BuildRecord, but does not care about any offsets.
bool EndOfFile () const
 Sometimes a builder can have multiple databases stored in it, so when Build/Fetch returns false, check if there is more data with this function.

Detailed Description

Definition at line 121 of file mimeio.h.


Member Function Documentation

bool Barry::MimeBuilder::BuildRecord ( DBData data,
size_t &  offset,
const IConverter ic 
) [virtual]

Called to build the record field data.

Store the raw data in data, using offset to know where to write. Be sure to update offset, and be sure to adjust the size of the data packet (possibly with Data::ReleaseBuffer()).

Returns true if successful, and false if at the end of the series. Note that if EndOfFile() is false after this function returns false, then there may be another series available, which the next call to BuildRecord() will determine.

Implements Barry::Builder.

Definition at line 47 of file mimeio.cc.

References Barry::SetDBData().

Referenced by FetchRecord().

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bool Barry::MimeBuilder::EndOfFile (  )  const [virtual]

Sometimes a builder can have multiple databases stored in it, so when Build/Fetch returns false, check if there is more data with this function.

This function is not used by database-oriented functions, but by pipe- oriented functions.

Implements Barry::Builder.

Definition at line 99 of file mimeio.cc.

bool Barry::MimeBuilder::FetchRecord ( DBData data,
const IConverter ic 
) [virtual]

Same as BuildRecord, but does not care about any offsets.

The caller should call DBData::GetOffset() afterward to discover if there is an offset to the result.

This is usually the fastest of the two functions, since extra copying may be required if a specific offset is given. When building records from Record classes, both functions are the same speed. But when building records from the device, the device decides the offset, so FetchRecord() is faster, since BuildRecord requires a copy to adjust to the right offset.

The caller should use the function that results in the least amount of copying for the caller. If the caller doesn't care about where the resulting record is in data, use FetchRecord().

Implements Barry::Builder.

Definition at line 93 of file mimeio.cc.

References BuildRecord().

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The documentation for this class was generated from the following files: