com.facebook.buck.util

Class CloseableHolder<T extends Closeable>

java.lang.Object

com.facebook.buck.util.CloseableHolder<T>

All Implemented Interfaces:

Closeable, AutoCloseable

public class CloseableHolder<T extends Closeable>
extends Object
implements Closeable

CloseableHolder is used to pass ownership of a Closeable. This can make it easier to properly close the underlying Closeable.

For example, in the following code, if writeSomethingToTempFile() throws an exception, the tempFile will be deleted, but otherwise the ownership is passed to doSomethingAsyncWithTempFile().

 try (CloseableHolder<NamedTemporaryFile> tempFile = new CloseableHolder<>(createTempFile())) {
   writeSomethingToTempFile(tempFile.get());
   doSomethingAsyncWithTempFile(tempFile.release());
 }


 

Constructor Summary

Constructors

Constructor and Description
CloseableHolder(T value)

Method Summary

Modifier and Type	Method and Description
void	close()
T	get()
T	release()

Methods inherited from class java.lang.Object

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

Constructor Detail

CloseableHolder

public CloseableHolder(T value)

Method Detail

get

public T get()

release

public T release()

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException