[Java] Interface ReaderSource
- org.codehaus.groovy.control.HasCleanup
- All Superinterfaces:
- HasCleanup
An interface for things that can supply (and potentially resupply) a Reader on a source stream.
- Authors:
- Chris Poirier
Methods Summary
| Type Params | Return Type | Name and description |
|---|---|---|
boolean |
canReopenSource()Returns true if the source can be restarted (ie. if getReader() will return non-null on subsequent calls. | |
void |
cleanup()Cleans up any cached resources used by getLine(). | |
String |
getLine(int lineNumber, Janitor janitor)Returns a line from the source, or null, if unavailable. | |
Reader |
getReader()Returns a new Reader on the underlying source object. | |
URI |
getURI()Returns a URI for this source. |
Inherited Methods Summary
| Methods inherited from class | Name |
|---|---|
interface HasCleanup | cleanup |
Method Detail
public boolean canReopenSource()
Returns true if the source can be restarted (ie. if getReader() will return non-null on subsequent calls.
- Returns:
- true if the resource can be reopened for reading
public void cleanup()
Cleans up any cached resources used by getLine().
public String getLine(int lineNumber, Janitor janitor)
Returns a line from the source, or null, if unavailable. If you supply a Janitor, resources will be cached.
- Parameters:
-
lineNumber- the number of the line of interest -
janitor- helper to clean up afterwards
- Returns:
- the line of interest
public Reader getReader()
Returns a new Reader on the underlying source object. Returns null if the source can't be reopened.
- throws:
- java.io.IOException if there was an error opening for stream
- Returns:
- the reader to the resource
public URI getURI()
Returns a URI for this source.
- Since:
- 2.3.0
© 2003-2020 The Apache Software Foundation
Licensed under the Apache license.
https://docs.groovy-lang.org/2.4.21/html/gapi/org/codehaus/groovy/control/io/ReaderSource.html