? AutoCloseInputStream
java.lang.Object
java.io.InputStream
java.io.FilterInputStream
org.apache.commons.io.input.ProxyInputStream
org.apache.commons.io.input.AutoCloseInputStream
- ????????:
Closeable
,AutoCloseable
Proxy stream that closes and discards the underlying stream as soon as the
end of input has been reached or when the stream is explicitly closed.
Not even a reference to the underlying stream is kept after it has been
closed, so any allocated in-memory buffers can be freed even if the
client application still keeps a reference to the proxy stream.
This class is typically used to release any resources related to an open stream as soon as possible even if the client application (by not explicitly closing the stream when no longer needed) or the underlying stream (by not releasing resources once the last byte has been read) do not do that.
- ???????:
- 1.4
-
????
??????? java.io.FilterInputStream
in
-
?????
????????Creates an automatically closing proxy for the given input stream. -
????
??????????protected void
afterRead
(int n) Automatically closes the stream if the end of stream was reached.void
close()
Closes the underlying input stream and replaces the reference to it with aClosedInputStream
instance.protected void
finalize()
Ensures that the stream is closed before it gets garbage-collected.??????? org.apache.commons.io.input.ProxyInputStream
available, beforeRead, handleIOException, mark, markSupported, read, read, read, reset, skip
??????? java.io.InputStream
nullInputStream, readAllBytes, readNBytes, readNBytes, skipNBytes, transferTo
-
???????
-
AutoCloseInputStream
Creates an automatically closing proxy for the given input stream.- ??:
in
- underlying input stream
-
-
??????
-
close
Closes the underlying input stream and replaces the reference to it with aClosedInputStream
instance.This method is automatically called by the read methods when the end of input has been reached.
Note that it is safe to call this method any number of times. The original underlying input stream is closed and discarded only once when this method is first called.
- ???:
close
????AutoCloseable
- ???:
close
????Closeable
- ??:
close
???ProxyInputStream
- ??:
IOException
- if the underlying input stream can not be closed
-
afterRead
Automatically closes the stream if the end of stream was reached.- ??:
afterRead
???ProxyInputStream
- ??:
n
- number of bytes read, or -1 if no more bytes are available- ??:
IOException
- if the stream could not be closed- ???????:
- 2.0
-
finalize
Ensures that the stream is closed before it gets garbage-collected. As mentioned inclose()
, this is a no-op if the stream has already been closed.
-