org.terracotta.cache.serialization
Class CustomLifespanSerializedEntry<T>

java.lang.Object
  org.terracotta.cache.value.AbstractStatelessTimestampedValue<V>
      org.terracotta.cache.value.AbstractTimestampedValue<byte[]>
          org.terracotta.cache.serialization.SerializedEntry<T>
              org.terracotta.cache.serialization.CustomLifespanSerializedEntry<T>

All Implemented Interfaces:

Externalizable, Serializable, ExpirableEntry, MarkTimestampedValue, TimestampedValue<byte[]>

public class CustomLifespanSerializedEntry<T>
extends SerializedEntry<T>

A SerializedEntry subclass that supports cache entries with custom TTI/TTL values.

Author:

Chris Dennis

See Also:

Serialized Form

Field Summary

Fields inherited from class org.terracotta.cache.value.AbstractTimestampedValue

lastAccessedTime

Fields inherited from class org.terracotta.cache.value.AbstractStatelessTimestampedValue

UNUSED

Fields inherited from interface org.terracotta.cache.TimestampedValue

NEVER_EXPIRE

Constructor Summary

CustomLifespanSerializedEntry()

CustomLifespanSerializedEntry(SerializedEntryParameters<T> params, int tti, int ttl)

CustomLifespanSerializedEntry(T deserialized, byte[] serialized, int tti, int ttl, int createTime)
Constructs a serialized entry with a custom lifespan and creation time.

CustomLifespanSerializedEntry(T deserialized, byte[] serialized, int tti, int ttl, int createTime, int lastAccessedTime)
Constructs a serialized entry with a custom lifespan, creation time, and last accessed time.

CustomLifespanSerializedEntry(T deserialized, byte[] serialized, int tti, int ttl, TimeSource timeSource)
Constructs a serialized entry with a custom lifespan and creation time.

Method Summary

int	expiresAt(CacheConfig config) Get the time at which this timestamp will become invalid.
void	readExternal(ObjectInput in)
void	writeExternal(ObjectOutput out)

Methods inherited from class org.terracotta.cache.serialization.SerializedEntry

addedToLocalCache, equals, getCreateTime, getDeserializedValue, getDeserializedValue, getDeserializedValueCopy, getDeserializedValueCopy, getValue, markTxnComplete, markTxnInProgress, nullByteArray, shouldRecalculateSize, toString, unsafelyGetDeserializedValue, unsafelyGetDeserializedValueCopy

Methods inherited from class org.terracotta.cache.value.AbstractTimestampedValue

fastGetCapacityEvictionPolicyData, getCapacityEvictionPolicyData, getLastAccessedTime, setCapacityEvictionPolicyData, setLastAccessedTimeInternal

Methods inherited from class org.terracotta.cache.value.AbstractStatelessTimestampedValue

expiresAt, hashCode, isExpired, markUsed, markUsed

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

CustomLifespanSerializedEntry

public CustomLifespanSerializedEntry()

CustomLifespanSerializedEntry

public CustomLifespanSerializedEntry(T deserialized,
                                     byte[] serialized,
                                     int tti,
                                     int ttl,
                                     TimeSource timeSource)

Constructs a serialized entry with a custom lifespan and creation time.

The constructed entry will have it's creation and last accessed time set to be the same, as would be normal for a newly constructed entry.

Parameters:

deserialized - non-serialized entry value

serialized - serialized entry value

tti - custom time-to-idle

ttl - custom time-to-live

timeSource - source for timestamps

CustomLifespanSerializedEntry

public CustomLifespanSerializedEntry(T deserialized,
                                     byte[] serialized,
                                     int tti,
                                     int ttl,
                                     int createTime)

Constructs a serialized entry with a custom lifespan and creation time.

The constructed entry will have it's creation and last accessed time set to be the same, as would be normal for a newly constructed entry.

Parameters:

deserialized - non-serialized entry value

serialized - serialized entry value

tti - custom time-to-idle

ttl - custom time-to-live

createTime - creation/last accessed time

CustomLifespanSerializedEntry

public CustomLifespanSerializedEntry(T deserialized,
                                     byte[] serialized,
                                     int tti,
                                     int ttl,
                                     int createTime,
                                     int lastAccessedTime)

Constructs a serialized entry with a custom lifespan, creation time, and last accessed time.

Parameters:

deserialized - non-serialized entry value

serialized - serialized entry value

tti - custom time-to-idle

ttl - custom time-to-live

createTime - creation time

lastAccessedTime - last accessed time

CustomLifespanSerializedEntry

public CustomLifespanSerializedEntry(SerializedEntryParameters<T> params,
                                     int tti,
                                     int ttl)

Method Detail

expiresAt

public int expiresAt(CacheConfig config)

Description copied from class: AbstractStatelessTimestampedValue

Get the time at which this timestamp will become invalid. If the config specified ttl == tti == 0, making items eternal, then this method returns TimestampedValue.NEVER_EXPIRE.

Specified by:

expiresAt in interface TimestampedValue<byte[]>

Overrides:

expiresAt in class AbstractStatelessTimestampedValue<byte[]>

Parameters:

config - The configuration

Returns:

Timestamp of expiration, >0, may be NEVER_EXPIRE if eternal

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Overrides:

writeExternal in class SerializedEntry<T>

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException

Specified by:

readExternal in interface Externalizable

Overrides:

readExternal in class SerializedEntry<T>

Throws:

IOException