org.hibernate.cache

Class ReadWriteCache.Item

java.lang.Object

org.hibernate.cache.ReadWriteCache.Item

All Implemented Interfaces:

Serializable, ReadWriteCache.Lockable

Enclosing class:

ReadWriteCache

public static final class ReadWriteCache.Item
extends Object
implements Serializable, ReadWriteCache.Lockable

An item of cached data, timestamped with the time it was cached,.

See Also:

ReadWriteCache, Serialized Form

Constructor Summary

Constructors

Constructor and Description
Item(Object value, Object version, long currentTimestamp)

Method Summary

Modifier and Type	Method and Description
long	getFreshTimestamp() The timestamp on the cached data
Object	getValue() The actual cached data
boolean	isGettable(long txTimestamp) Is this item visible to the timestamped transaction?
boolean	isLock() Not a lock!
boolean	isPuttable(long txTimestamp, Object newVersion, Comparator comparator) Don't overwite already cached items
ReadWriteCache.Lock	lock(long timeout, int id) Lock the item
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Item

public Item(Object value,
            Object version,
            long currentTimestamp)

Method Detail

getFreshTimestamp

public long getFreshTimestamp()

The timestamp on the cached data

getValue

public Object getValue()

The actual cached data

lock

public ReadWriteCache.Lock lock(long timeout,
                                int id)

Lock the item

Specified by:

lock in interface ReadWriteCache.Lockable

isLock

public boolean isLock()

Not a lock!

Specified by:

isLock in interface ReadWriteCache.Lockable

isGettable

public boolean isGettable(long txTimestamp)

Is this item visible to the timestamped transaction?

Specified by:

isGettable in interface ReadWriteCache.Lockable

isPuttable

public boolean isPuttable(long txTimestamp,
                          Object newVersion,
                          Comparator comparator)

Don't overwite already cached items

Specified by:

isPuttable in interface ReadWriteCache.Lockable

toString

public String toString()

Overrides:

toString in class Object