org.hibernate.cache.spi.support

Interface AbstractReadWriteAccess.Lockable

All Known Implementing Classes:

AbstractReadWriteAccess.Item, AbstractReadWriteAccess.SoftLockImpl

Enclosing class:

AbstractReadWriteAccess

public static interface AbstractReadWriteAccess.Lockable

Interface type implemented by all wrapper objects in the cache.

Method Summary

Modifier and Type	Method and Description
Object	getValue() Returns the enclosed value.
boolean	isReadable(long txTimestamp) Returns true if the enclosed value can be read by a transaction started at the given time.
boolean	isUnlockable(SoftLock lock) Returns true if the given lock can be unlocked using the given SoftLock instance as a handle.
boolean	isWriteable(long txTimestamp, Object version, Comparator versionComparator) Returns true if the enclosed value can be replaced with one of the given version by a transaction started at the given time.
AbstractReadWriteAccess.SoftLockImpl	lock(long timeout, UUID uuid, long lockId) Locks this entry, stamping it with the UUID and lockId given, with the lock timeout occuring at the specified time.

Method Detail

isReadable

boolean isReadable(long txTimestamp)

Returns true if the enclosed value can be read by a transaction started at the given time.

isWriteable

boolean isWriteable(long txTimestamp,
                    Object version,
                    Comparator versionComparator)

Returns true if the enclosed value can be replaced with one of the given version by a transaction started at the given time.

getValue

Object getValue()

Returns the enclosed value.

isUnlockable

boolean isUnlockable(SoftLock lock)

Returns true if the given lock can be unlocked using the given SoftLock instance as a handle.

lock

AbstractReadWriteAccess.SoftLockImpl lock(long timeout,
                                          UUID uuid,
                                          long lockId)

Locks this entry, stamping it with the UUID and lockId given, with the lock timeout occuring at the specified time. The returned Lock object can be used to unlock the entry in the future.