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Oracle® Coherence Java API Reference Release 3.6.0.0 E15725-01 |
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java.lang.Object
com.tangosol.util.Base
com.tangosol.util.SegmentedHashMap.Entry
com.tangosol.util.SegmentedConcurrentMap.LockableEntry
protected class SegmentedConcurrentMap.LockableEntry
LockableEntry is an Entry that supports locking. See ConcurrentMap
Field Summary | |
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protected short |
m_cContend The number of threads that are waiting to lock this Entry. |
protected short |
m_cLock The lock count (number of times the "lock()" was called by the locking thread). |
protected Object |
m_oLockHolder The lock holder object. |
Fields inherited from class com.tangosol.util.SegmentedHashMap.Entry |
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m_eNext, m_nHash, m_oKey, m_oValue |
Constructor Summary | |
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protected |
SegmentedConcurrentMap.LockableEntry(Object oKey, Object oValue, int nHash) Construct a LockableEntry for the given entry. |
Method Summary | |
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protected boolean |
isContended() Is there contention (a thread waiting) to lock this Entry? |
protected boolean |
isLocked() Is this entry Locked? |
protected boolean |
isSynthetic() Is this Entry synthetic? |
protected void |
lock(Object oHolder) Lock this entry for the specified lock holder. |
String |
toString() Render the map entry as a String. |
protected boolean |
unlock() Unlock this entry. |
protected long |
waitForNotify(long cWait) Wait for this LockableEntry to be notified that it has been freed by the previous lock-holder. |
Methods inherited from class com.tangosol.util.SegmentedHashMap.Entry |
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equals, getKey, getValue, getValueInternal, hashCode, nextEntry, nextEntry, setNext, setValue, setValueInternal |
Field Detail |
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protected volatile Object m_oLockHolder
protected short m_cLock
protected volatile short m_cContend
Constructor Detail |
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protected SegmentedConcurrentMap.LockableEntry(Object oKey, Object oValue, int nHash)
oKey
- key with which the specified value is to be associatedoValue
- value to be associated with the specified keynHash
- the hashCode for the specified keyMethod Detail |
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protected long waitForNotify(long cWait)
cWait
- the number of milliseconds to wait for notification to obtain a lock; pass zero to return immediately; pass -1 to block the calling thread until the lock could be obtainedprotected void lock(Object oHolder)
oHolder
- the holder of this lockprotected boolean unlock()
public String toString()
toString
in class SegmentedHashMap.Entry
protected boolean isLocked()
protected boolean isContended()
protected boolean isSynthetic()
isSynthetic
in class SegmentedHashMap.Entry
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Oracle® Coherence Java API Reference Release 3.6.0.0 E15725-01 |
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