ArchiveWriter

```
public interface ArchiveWriter
```
Interface for writing samples to an archive

Author:

Kay Kasemir

Method Summary

Modifier and Type	Method	Description
`void`	`close()`	Should be called to release resources, for example disconnect from a relational database.
`void`	`flush()`	Write all recently added samples to the archive.
`WriteChannel`	`getChannel(String name)`	Obtain a channel to which samples can be written

- Method Detail
  - getChannel
```
WriteChannel getChannel(String name)
                 throws Exception
```
    Obtain a channel to which samples can be written
    
    Parameters:
    
    name - Channel name (typically a PV name)
    
    Returns:
    
    WriteChannel, not null
    
    Throws:
    
    Exception - on error, for example failure to access the data store, or a new, previously unknown channel name could not be added to the archive
  - flush
```
void flush()
    throws Exception
```
    Write all recently added samples to the archive.
    Since the underlying implementation is allowed to optimize, it might buffer the added samples, or queue them by data type, and an explicit call to this method is required to flush them out to the archive storage.
    
    Throws:
    
    Exception - on error, for example failure to access the data store. Samples added since the last flush() are likely lost
  - close
```
void close()
```
    Should be called to release resources, for example disconnect from a relational database.