org.bluedb.api.keys

Class UUIDKey

java.lang.Object

org.bluedb.api.keys.ValueKey

org.bluedb.api.keys.HashGroupedKey<java.util.UUID>

org.bluedb.api.keys.UUIDKey

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<BlueKey>, BlueKey

public final class UUIDKey
extends HashGroupedKey<java.util.UUID>

A key that can be mapped to a value in a BlueCollection or BlueIndex. The hashcode of these keys is used to determine the location of the corresponding values on disk. Collections with this type of key will be unordered and if the hash is good then they will be spread fairly evenly across the collection segments. This means that there will be few collisions and high i-node usage.

See Also:

Serialized Form

Field Summary

Fields inherited from interface org.bluedb.api.keys.BlueKey

nullSafeClassComparator

Constructor Summary

Constructors

Constructor and Description
UUIDKey(java.util.UUID id)

Method Summary

Modifier and Type	Method and Description
java.util.UUID	getId()

Methods inherited from class org.bluedb.api.keys.HashGroupedKey

equals, getGroupingNumber, hashCode, postGroupingNumberCompareTo, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.bluedb.api.keys.BlueKey

compareCanonicalClassNames, compareCanonicalClassNames, compareTo, compareWithNullsLast, getIntegerIdIfPresent, getLongIdIfPresent, isInRange, unsafeCompareCanonicalClassNames

Constructor Detail

UUIDKey

public UUIDKey(java.util.UUID id)

Method Detail

getId

public java.util.UUID getId()

Specified by:

getId in class HashGroupedKey<java.util.UUID>

Returns:

the id of this key