StreamDataSource

All Superinterfaces:

DataSource
```
public interface StreamDataSource
extends DataSource
```
A data source with a single input stream. Here it is cosy for us to distance ourselves from file-system and to work with streams of data rather than files.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`delete()`
`boolean`	`exists()`	if rv == false, then `openInputStream()` will throw IOException so check it before reading
`String`	`getStreamName()`
`InputStream`	`openInputStream()`	Access named stream for reading.
`OutputStream`	`openOutputStream()`	Access named stream for writing.

Methods inherited from interface org.jetbrains.mps.openapi.persistence.DataSource
addListener, getLocation, getTimestamp, getType, isReadOnly, removeListener

- Method Detail
  - getStreamName
```
@NotNull
String getStreamName()
```
    Returns:
    
    a string identifier
  - openInputStream
```
@NotNull
InputStream openInputStream()
                     throws IOException
```
    Access named stream for reading. Caller is responsible to close the stream once done.
    
    Returns:
    
    stream to read from, never null
    
    Throws:
    
    IOException - if failed to open given named stream
  - openOutputStream
```
@NotNull
OutputStream openOutputStream()
                       throws IOException
```
    Access named stream for writing. Caller is responsible to close the stream once done.
    
    Returns:
    
    stream to write to, never null
    
    Throws:
    
    IOException - if failed to open given named stream
  - delete
```
boolean delete()
```
    Returns:
    
    true if success
  - exists
```
boolean exists()
```
    if rv == false, then openInputStream() will throw IOException so check it before reading