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java.lang.Objectjava.lang.Thread
org.apache.log4j.helpers.FileWatchdog
public abstract class FileWatchdog
Check every now and then that a certain file has not changed. If it
has, then call the doOnChange()
method.
Nested Class Summary |
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Nested classes/interfaces inherited from class java.lang.Thread |
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java.lang.Thread.State, java.lang.Thread.UncaughtExceptionHandler |
Field Summary | |
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static long |
DEFAULT_DELAY
The default delay between every file modification check, set to 60 seconds. |
protected long |
delay
The delay to observe between every check. |
protected java.lang.String |
filename
The name of the file to observe for changes. |
Fields inherited from class java.lang.Thread |
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MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY |
Constructor Summary | |
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protected |
FileWatchdog(java.lang.String filename)
|
Method Summary | |
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protected void |
checkAndConfigure()
|
protected abstract void |
doOnChange()
|
void |
run()
|
void |
setDelay(long delay)
Set the delay to observe between each check of the file changes. |
Methods inherited from class java.lang.Thread |
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activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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public static final long DEFAULT_DELAY
protected java.lang.String filename
protected long delay
DEFAULT_DELAY
.
Constructor Detail |
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protected FileWatchdog(java.lang.String filename)
Method Detail |
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public void setDelay(long delay)
protected abstract void doOnChange()
protected void checkAndConfigure()
public void run()
run
in interface java.lang.Runnable
run
in class java.lang.Thread
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