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* Normally this is sufficient protection. If you really need an atomic read, you may |
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* Normally this is sufficient protection. If you really need an atomic read, you may |
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* simply lock the file, perform the read, and unlock it when done. The file will still |
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* simply lock the file, perform the read, and unlock it when done. The file will still |
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* be protected against writes, although the read operation did not request a lock. |
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* be protected against writes, although the read operation did not request a lock. |
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* |
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* <p/> |
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* The {@code FileLock} implements {@link AutoCloseable}, so it can be created within |
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* try-with-resources resource clause and the lock will be released at the end of the try block. |
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* |
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* @see FileObject |
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* @see FileObject |
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* |
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* @since 9.2 implements {@code AutoCloseable} interface. |
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* @author Petr Hamernik, Jaroslav Tulach, Ian Formanek |
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* @author Petr Hamernik, Jaroslav Tulach, Ian Formanek |
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* @version 0.16, Jun 5, 1997 |
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* @version 0.16, Jun 5, 1997 |
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* |
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* |
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*/ |
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*/ |
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public class FileLock { // XXX JDK 7: implements AutoCloseable |
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public class FileLock implements AutoCloseable { |
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// ========================= NONE file lock ===================================== |
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// ========================= NONE file lock ===================================== |
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/** Constant that can be used in filesystems that do not support locking. |
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/** Constant that can be used in filesystems that do not support locking. |
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Lines 109-114
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locked = false; |
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locked = false; |
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} |
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} |
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/** |
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* Releases the lock. Equivalent to {@link #releaseLock} call. |
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*/ |
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@Override |
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public final void close() { |
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releaseLock(); |
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} |
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// End of the original part |
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// End of the original part |
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// ============================================================================ |
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// ============================================================================ |
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