NdjsonDataProvider::InputStreamNdjsonIterator Class Reference

Iterator for reading NDJSON data from an input stream. More...

#include <NdjsonIterator.qc.dox.h>

Inherits AbstractIterator.

Public Member Methods
void	constructor (Qore::InputStream input_stream, soft< hash< NdjsonIteratorOptions > > options)
	Creates the iterator from an input stream.
auto	getValue ()
	Returns the current JSON value.
bool	valid ()
	Returns True if the iterator is valid.
int	getLineNumber ()
	Returns the current line number (1-based)

Private Attributes
Qore::StreamReader	reader
	The input stream.
auto	current_value
	Current parsed value.
hash< NdjsonIteratorOptions >	opts
	Options for the iterator.

Detailed Description

Iterator for reading NDJSON data from an input stream.

This class provides an iterator interface for reading NDJSON formatted data from an input stream, enabling memory-efficient processing of large files.

Example

FileInputStream fis("data.ndjson");
InputStreamNdjsonIterator iter(fis);
while (iter.next()) {
    printf("Value: %y\n", iter.getValue());
}

Member Function Documentation

constructor()

void NdjsonDataProvider::InputStreamNdjsonIterator::constructor	(	Qore::InputStream	input_stream,
		soft< hash< NdjsonIteratorOptions > >	options
	)

Creates the iterator from an input stream.

Parameters

input_stream	the input stream to read from
options	iterator options

getValue()

auto NdjsonDataProvider::InputStreamNdjsonIterator::getValue

(

)

Returns the current JSON value.

Returns

the parsed JSON value

Exceptions

ITERATOR-ERROR

if the iterator is not valid

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

• doxygen/qlib/NdjsonDataProvider/NdjsonIterator.qc.dox.h