SegmentedConcurrentMap.ContentionObserver (Oracle® Coherence Java API Reference)

Enclosing class:

SegmentedConcurrentMap
```
public static interface SegmentedConcurrentMap.ContentionObserver
```
ContentionObserver is used to observe the contention lock-related actions performed on the concurrent map.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`onContend(Object oContender, SegmentedConcurrentMap.LockableEntry entry)`	Called when the specified lock holder begins contending for the specified LockableEntry.
`void`	`onUncontend(Object oContender, SegmentedConcurrentMap.LockableEntry entry)`	Called when the specified lock holder stops contending for the specified LockableEntry.

- Method Detail
  - onContend
```
void onContend(Object oContender,
               SegmentedConcurrentMap.LockableEntry entry)
```
    Called when the specified lock holder begins contending for the specified LockableEntry.
    
    Parameters:
    
    oContender - the contending lock holder
    
    entry - the entry being contended for
  - onUncontend
```
void onUncontend(Object oContender,
                 SegmentedConcurrentMap.LockableEntry entry)
```
    Called when the specified lock holder stops contending for the specified LockableEntry.
    
    Parameters:
    
    oContender - the previously contending lock holder
    
    entry - the entry no longer being contended for