org.neo4j.csv.reader

Class ProcessingSource

java.lang.Object

org.neo4j.csv.reader.ProcessingSource

All Implemented Interfaces:

Closeable, AutoCloseable

public class ProcessingSource
extends Object
implements Closeable

In a scenario where there's one reader reading chunks of data, handing those chunks to one or more processors (parsers) of that data, this class comes in handy. This pattern allows for multiple seeker instances, each operating over one chunk, not transitioning itself into the next.

Constructor Summary

Constructors

Constructor and Description
ProcessingSource(CharReadable reader, int chunkSize, int maxNumberOfBufferedChunks)

Method Summary

Modifier and Type	Method and Description
void	close()
Source.Chunk	nextChunk() Must be called by a single thread, the same thread every time.
long	position()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ProcessingSource

public ProcessingSource(CharReadable reader,
                        int chunkSize,
                        int maxNumberOfBufferedChunks)

Method Detail

nextChunk

public Source.Chunk nextChunk()
                       throws IOException

Must be called by a single thread, the same thread every time.

Returns:

the next Source.Chunk of data, ending with a new-line or not for the last chunk.

Throws:

IOException - on reading error.

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException

position

public long position()