org.apache.cassandra.cache

Class KeyCacheKey

java.lang.Object

org.apache.cassandra.cache.CacheKey

org.apache.cassandra.cache.KeyCacheKey

All Implemented Interfaces:

IMeasurableMemory

public class KeyCacheKey
extends CacheKey

Field Summary

Fields

Modifier and Type	Field and Description
Descriptor	desc
byte[]	key

Fields inherited from class org.apache.cassandra.cache.CacheKey

indexName, tableId

Constructor Summary

Constructors

Constructor and Description
KeyCacheKey(TableMetadata tableMetadata, Descriptor desc, java.nio.ByteBuffer key)

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object o)
int	hashCode()
java.lang.String	toString()
long	unsharedHeapSize()

Methods inherited from class org.apache.cassandra.cache.CacheKey

sameTable

Methods inherited from class java.lang.Object

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

Field Detail

desc

public final Descriptor desc

key

public final byte[] key

Constructor Detail

KeyCacheKey

public KeyCacheKey(TableMetadata tableMetadata,
                   Descriptor desc,
                   java.nio.ByteBuffer key)

Method Detail

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

unsharedHeapSize

public long unsharedHeapSize()

Returns:

the amount of on-heap memory retained by the object that might be reclaimed if the object were reclaimed, i.e. it should try to exclude globally cached data where possible, or counting portions of arrays that are referenced by the object but used by other objects only (e.g. slabbed byte-buffers), etc.

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object