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Oracle® Coherence Java API Reference
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## com.tangosol.util
Interface SegmentedHashMap.EntryAction

All Known Subinterfaces:
  SegmentedHashMap.IterableEntryAction

All Known Implementing Classes:
  SegmentedConcurrentMap.LockAction, SegmentedConcurrentMap.RemoveAction, SegmentedConcurrentMap.SizeAction, SegmentedConcurrentMap.UnlockAction, SegmentedHashMap.ContainsValueAction, SegmentedHashMap.EntryActionAdapter, SegmentedHashMap.GetEntryAction, SegmentedHashMap.InsertAction, SegmentedHashMap.RemoveAction

Enclosing class:
  SegmentedHashMap

    protected static interface SegmentedHashMap.EntryAction

An EntryAction encapsulates a logical action to be executed in the context of a key (that may or may not exist in the map). If an Entry exists in the map for the key, `invokeFound` is called; otherwise `invokeNotFound` is called.

EntryAction instances are state-aware and are invoked with an opaque context object supplied by the action client. The meanings of the supplied context and return-values are polymorphic in EntryAction type. Depending on the EntryAction type, it may or may not be invoked while holding the segment lock for the key.

An EntryAction should not acquire additional segment-locks.

Method Summary
`java.lang.Object` | `invokeFound(java.lang.Object oKey, java.lang.Object oContext, SegmentedHashMap.Entry[] aeBucket, int nBucket, SegmentedHashMap.Entry entryPrev, SegmentedHashMap.Entry entryCur)` Invoke some action, holding the segment lock, when a matching Entry is found.
`java.lang.Object` | `invokeNotFound(java.lang.Object oKey, java.lang.Object oContext, SegmentedHashMap.Entry[] aeBucket, int nBucket)` Invoke some action, holding the segment lock, when no matching Entry is found.

Method Detail

### invokeFound

    java.lang.Object invokeFound(java.lang.Object oKey,
                                 java.lang.Object oContext,
                                 SegmentedHashMap.Entry[] aeBucket,
                                 int nBucket,
                                 SegmentedHashMap.Entry entryPrev,
                                 SegmentedHashMap.Entry entryCur)

  Invoke some action, holding the segment lock, when a matching Entry is found.

  Parameters:
    `oKey` - the key to which the action is applied
    `oContext` - opaque context specific to the action
    `aeBucket` - the bucket array
    `nBucket` - the index into the bucket array
    `entryPrev` - the Entry object immediately preceding the Entry that was found, or null
    `entryCur` - the Entry object that was found
  Returns:
    an opaque result value

### invokeNotFound

    java.lang.Object invokeNotFound(java.lang.Object oKey,
                                    java.lang.Object oContext,
                                    SegmentedHashMap.Entry[] aeBucket,
                                    int nBucket)

  Invoke some action, holding the segment lock, when no matching Entry is found.

  Parameters:
    `oKey` - the key to which the action is applied
    `oContext` - opaque context specific to the action
    `aeBucket` - the bucket array
    `nBucket` - the index into the bucket array
  Returns:
    an opaque result value

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Oracle® Coherence Java API Reference
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E15583-01
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