com.caucho.server.distcache
Class MnodeEntry

java.lang.Object
  com.caucho.server.distcache.MnodeValue
      com.caucho.server.distcache.MnodeEntry

All Implemented Interfaces:

ExtCacheEntry, java.io.Serializable, Cache.Entry

public final class MnodeEntry
extends MnodeValue
implements ExtCacheEntry

An entry in the cache map

See Also:

Serialized Form

Field Summary

static HashKey	ANY_KEY
static MnodeEntry	NULL
static HashKey	NULL_KEY

Constructor Summary

MnodeEntry(HashKey valueHash, long valueLength, long version, java.lang.Object value, HashKey cacheHash, long flags, long accessedExpireTimeout, long modifiedExpireTimeout, long leaseTimeout, long lastAccessTime, long lastUpdateTime, boolean isServerVersionValid, boolean isImplicitNull)

MnodeEntry(MnodeEntry oldMnodeValue, long accessTimeout, long lastUpdateTime)

MnodeEntry(MnodeValue mnodeValue, java.lang.Object value, long leaseTimeout, long lastAccessTime, long lastUpdateTime, boolean isServerVersionValid, boolean isImplicitNull)

Method Summary

void	clearLease() Sets the owner
int	compareTo(MnodeEntry mnode) Compares values
long	getAccessExpireTimeoutWindow() Returns the idle window to avoid too many updates
java.sql.Blob	getBlob()
HashKey	getCacheHashKey()
long	getCreationTime()
long	getExpirationTime() Returns the expiration time
int	getHits()
java.lang.Object	getKey() Implements a method required by the interface that should never be called>
HashKey	getKeyHash() Returns the key hash for the current entry.
long	getLastAccessedTime() Returns the last access time.
long	getLastModifiedTime() Returns the last update time.
long	getLastRemoteAccessTime() Returns the last remote access time.
int	getLeaseOwner() Returns the lease owner
long	getLeaseTimeout() Returns the timeout for a lease of the cache entry
int	getLoadCount() Returns the load count.
java.lang.Object	getValue() Returns the deserialized value for the entry.
HashKey	getValueHashKey() Returns the value key
boolean	isExpired(long now) Returns true is the entry has expired for being idle or having expired.
boolean	isIdleExpired(long now) Returns true is the entry has remained idle too long.
boolean	isImplicitNull() If the null value is due to a missing item in the database.
boolean	isLeaseExpired(long now)
boolean	isLocalExpired(int serverIndex, long now, long localExpireTimeout)
boolean	isLocalExpired(long now, CacheConfig config) Returns true if the local (unchecked) expire time.
boolean	isServerVersionValid() Returns true if the server version (startup count) matches the database.
boolean	isUnloadedValue()
boolean	isValid()
boolean	isValueExpired(long now) Returns true if the value of the entry has expired.
boolean	isValueNull() Returns true if the value is null
void	setBlob(java.sql.Blob blob)
void	setLastAccessTime(long accessTime) Sets the last access time.
void	setLastRemoteAccessTime(long accessTime) Sets the last remote access time.
void	setLeaseOwner(int leaseOwner, long now) Sets the owner
void	setObjectValue(java.lang.Object value) Sets the deserialized value for the entry.
java.lang.Object	setValue(java.lang.Object value) Implements a method required by the interface that should never be called>
java.lang.String	toString()

Methods inherited from class com.caucho.server.distcache.MnodeValue

getAccessedExpireTimeout, getCacheHash, getFlags, getModifiedExpireTimeout, getUserFlags, getValueHash, getValueLength, getVersion

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.caucho.distcache.ExtCacheEntry

getAccessedExpireTimeout, getModifiedExpireTimeout, getUserFlags, getValueLength, getVersion

Field Detail

NULL

public static final MnodeEntry NULL

NULL_KEY

public static final HashKey NULL_KEY

ANY_KEY

public static final HashKey ANY_KEY

Constructor Detail

MnodeEntry

public MnodeEntry(HashKey valueHash,
                  long valueLength,
                  long version,
                  java.lang.Object value,
                  HashKey cacheHash,
                  long flags,
                  long accessedExpireTimeout,
                  long modifiedExpireTimeout,
                  long leaseTimeout,
                  long lastAccessTime,
                  long lastUpdateTime,
                  boolean isServerVersionValid,
                  boolean isImplicitNull)

MnodeEntry

public MnodeEntry(MnodeValue mnodeValue,
                  java.lang.Object value,
                  long leaseTimeout,
                  long lastAccessTime,
                  long lastUpdateTime,
                  boolean isServerVersionValid,
                  boolean isImplicitNull)

MnodeEntry

public MnodeEntry(MnodeEntry oldMnodeValue,
                  long accessTimeout,
                  long lastUpdateTime)

Method Detail

getKeyHash

public HashKey getKeyHash()

Description copied from interface: ExtCacheEntry

Returns the key hash for the current entry.

Specified by:

getKeyHash in interface ExtCacheEntry

getLastAccessedTime

public long getLastAccessedTime()

Returns the last access time.

Specified by:

getLastAccessedTime in interface ExtCacheEntry

Returns:

setLastAccessTime

public void setLastAccessTime(long accessTime)

Sets the last access time.

getLastRemoteAccessTime

public long getLastRemoteAccessTime()

Returns the last remote access time.

setLastRemoteAccessTime

public void setLastRemoteAccessTime(long accessTime)

Sets the last remote access time.

getLastModifiedTime

public long getLastModifiedTime()

Returns the last update time.

Specified by:

getLastModifiedTime in interface ExtCacheEntry

getExpirationTime

public final long getExpirationTime()

Returns the expiration time

isLocalExpired

public final boolean isLocalExpired(int serverIndex,
                                    long now,
                                    long localExpireTimeout)

isLeaseExpired

public final boolean isLeaseExpired(long now)

isLocalExpired

public final boolean isLocalExpired(long now,
                                    CacheConfig config)

Returns true if the local (unchecked) expire time.

isExpired

public final boolean isExpired(long now)

Returns true is the entry has expired for being idle or having expired.

Specified by:

isExpired in interface ExtCacheEntry

isValueExpired

public final boolean isValueExpired(long now)

Returns true if the value of the entry has expired.

isIdleExpired

public final boolean isIdleExpired(long now)

Returns true is the entry has remained idle too long.

getLeaseOwner

public final int getLeaseOwner()

Returns the lease owner

Specified by:

getLeaseOwner in interface ExtCacheEntry

setLeaseOwner

public final void setLeaseOwner(int leaseOwner,
                                long now)

Sets the owner

clearLease

public final void clearLease()

Sets the owner

getAccessExpireTimeoutWindow

public long getAccessExpireTimeoutWindow()

Returns the idle window to avoid too many updates

getLeaseTimeout

public long getLeaseTimeout()

Returns the timeout for a lease of the cache entry

Specified by:

getLeaseTimeout in interface ExtCacheEntry

setObjectValue

public final void setObjectValue(java.lang.Object value)

Sets the deserialized value for the entry.

isValueNull

public boolean isValueNull()

Returns true if the value is null

Specified by:

isValueNull in interface ExtCacheEntry

getValue

public final java.lang.Object getValue()

Returns the deserialized value for the entry.

Specified by:

getValue in interface ExtCacheEntry

Specified by:

getValue in interface Cache.Entry

getBlob

public java.sql.Blob getBlob()

setBlob

public void setBlob(java.sql.Blob blob)

getValueHashKey

public HashKey getValueHashKey()

Description copied from interface: ExtCacheEntry

Returns the value key

Specified by:

getValueHashKey in interface ExtCacheEntry

getCacheHashKey

public HashKey getCacheHashKey()

isServerVersionValid

public boolean isServerVersionValid()

Returns true if the server version (startup count) matches the database.

isImplicitNull

public boolean isImplicitNull()

If the null value is due to a missing item in the database.

isUnloadedValue

public boolean isUnloadedValue()

compareTo

public int compareTo(MnodeEntry mnode)

Compares values

getLoadCount

public int getLoadCount()

Description copied from interface: ExtCacheEntry

Returns the load count.

Specified by:

getLoadCount in interface ExtCacheEntry

getKey

public java.lang.Object getKey()

Implements a method required by the interface that should never be called>

Specified by:

getKey in interface Cache.Entry

setValue

public java.lang.Object setValue(java.lang.Object value)

Implements a method required by the interface that should never be called>

getCreationTime

public long getCreationTime()

isValid

public boolean isValid()

Specified by:

isValid in interface ExtCacheEntry

getHits

public int getHits()

toString

public java.lang.String toString()

Overrides:

toString in class MnodeValue