|Constructor and Description|
|Modifier and Type||Method and Description|
Returns true if this object or one of it's inner wrapped objects has metrics gathering activity turned on; false otherwise.
Releases the allocated resource.
Skips over and discards
getMessageDigest, on, read, read, setMessageDigest, toString
available, close, mark, markSupported, read, reset
public final boolean isMetricActivated()
public final long skip(long n) throws IOException
nbytes of data from this input stream, while taking the skipped bytes into account for digest calculation. The
skipmethod may, for a variety of reasons, end up skipping over some smaller number of bytes, possibly
0. This may result from any of a number of conditions; reaching end of file before
nbytes have been skipped is only one possibility. The actual number of bytes skipped is returned. If
nis negative, no bytes are skipped.
skip method of this class creates a byte array and then
repeatedly reads into it until
n bytes have been read or the
end of the stream has been reached. Subclasses are encouraged to provide
a more efficient implementation of this method. For instance, the
implementation may depend on the ability to seek.
public final void release()
Closeableresource to be not unintentionally released owing to the calling of the
Closeable.close()methods by implementation deep down in the call stack.
For example, the creation of a
ResettableInputStream would entail
physically opening a file. If the opened file is meant to be closed only
(in a finally block) by the very same code block that created it, then it
is necessary that the release method must not be called while the
execution is made in other stack frames.
In such case, as other stack frames may inadvertently or indirectly call
the close method of the stream, the creator of the stream would need to
explicitly disable the accidental closing via
ResettableInputStream#disableClose(), so that the release method
becomes the only way to truly close the opened file.