External: Duplex

Methods

end(chunk, encoding, callback){null}

lib/gridfs/grid_store.js, line 1838

Call this method when no more data will be written to the stream. If supplied, the callback is attached as a listener on the finish event.

Name	Type	Description
chunk	string | Buffer	The data to write
encoding	string	The encoding, if chunk is a String
callback	function	Callback for when this chunk of data is flushed

pause(){null}

lib/gridfs/grid_store.js, line 1794

This method will cause a stream in flowing-mode to stop emitting data events. Any data that becomes available will remain in the internal buffer.

pipe(destination, options){null}

lib/gridfs/grid_store.js, line 1800

This method pulls all the data out of a readable stream, and writes it to the supplied destination, automatically managing the flow so that the destination is not overwhelmed by a fast readable stream.

Name	Type	Description
destination	Writable	The destination for writing data
options	object	optional Pipe options

read(size){String|Buffer|null}

lib/gridfs/grid_store.js, line 1774

The read() method pulls some data out of the internal buffer and returns it. If there is no data available, then it will return null.

Name	Type	Description
size	number	Optional argument to specify how much data to read.

resume(){null}

lib/gridfs/grid_store.js, line 1788

This method will cause the readable stream to resume emitting data events.

setEncoding(encoding){null}

lib/gridfs/grid_store.js, line 1781

Call this function to cause the stream to return strings of the specified encoding instead of Buffer objects.

Name	Type	Description
encoding	string	The encoding to use.

unpipe(destination){null}

lib/gridfs/grid_store.js, line 1808

This method will remove the hooks set up for a previous pipe() call.

Name	Type	Description
destination	Writable	optional The destination for writing data

unshift(chunk){null}

lib/gridfs/grid_store.js, line 1815

This is useful in certain cases where a stream is being consumed by a parser, which needs to "un-consume" some data that it has optimistically pulled out of the source, so that the stream can be passed on to some other party.

Name	Type	Description
chunk	Buffer | string	Chunk of data to unshift onto the read queue.

wrap(stream){null}

lib/gridfs/grid_store.js, line 1822

Versions of Node prior to v0.10 had streams that did not implement the entire Streams API as it is today. (See "Compatibility" below for more information.)

Name	Type	Description
stream	Stream	An "old style" readable stream.

write(chunk, encoding, callback){boolean}

lib/gridfs/grid_store.js, line 1829

This method writes some data to the underlying system, and calls the supplied callback once the data has been fully handled.

Name	Type	Description
chunk	string | Buffer	The data to write
encoding	string	The encoding, if chunk is a String
callback	function	Callback for when this chunk of data is flushed