Enum AddWatchMode
- All Implemented Interfaces:
Serializable
,Comparable<AddWatchMode>
ZooKeeper.addWatch(String, Watcher, AddWatchMode)
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Enum Constant Summary
Enum ConstantsEnum ConstantDescriptionSet a watcher on the given path that does not get removed when triggered (i.e.Set a watcher on the given path that: a) does not get removed when triggered (i.e. -
Method Summary
Modifier and TypeMethodDescriptionint
getMode()
static AddWatchMode
Returns the enum constant of this type with the specified name.static AddWatchMode[]
values()
Returns an array containing the constants of this enum type, in the order they are declared.
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Enum Constant Details
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PERSISTENT
Set a watcher on the given path that does not get removed when triggered (i.e. it stays active until it is removed). This watcher is triggered for both data and child events. To remove the watcher, use removeWatches() with WatcherType.Any. The watcher behaves as if you placed an exists() watch and a getData() watch on the ZNode at the given path.
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PERSISTENT_RECURSIVE
Set a watcher on the given path that: a) does not get removed when triggered (i.e. it stays active until it is removed); b) applies not only to the registered path but all child paths recursively. This watcher is triggered for both data and child events. To remove the watcher, use removeWatches() with WatcherType.Any
The watcher behaves as if you placed an exists() watch and a getData() watch on the ZNode at the given path and any ZNodes that are children of the given path including children added later.
NOTE: when there are active recursive watches there is a small performance decrease as all segments of ZNode paths must be checked for watch triggering.
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Method Details
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values
Returns an array containing the constants of this enum type, in the order they are declared.- Returns:
- an array containing the constants of this enum type, in the order they are declared
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valueOf
Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)- Parameters:
name
- the name of the enum constant to be returned.- Returns:
- the enum constant with the specified name
- Throws:
IllegalArgumentException
- if this enum type has no constant with the specified nameNullPointerException
- if the argument is null
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getMode
public int getMode()
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