org.h2.util

类 CacheHead

java.lang.Object

org.h2.util.CacheObject

org.h2.util.CacheHead

所有已实现的接口:

Comparable<CacheObject>

public class CacheHead
extends CacheObject

The head element of the linked list.

字段概要

从类继承的字段 org.h2.util.CacheObject

cacheChained, cacheNext, cachePrevious

构造器概要

构造器

构造器和说明
CacheHead()

方法概要

限定符和类型	方法和说明
boolean	canRemove() Check if the object can be removed from the cache.
int	getMemory() Get the estimated used memory.

从类继承的方法 org.h2.util.CacheObject

compareTo, getPos, isChanged, isStream, setChanged, setPos

从类继承的方法 java.lang.Object

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

构造器详细资料

CacheHead

public CacheHead()

方法详细资料

canRemove

public boolean canRemove()

从类复制的说明: CacheObject

Check if the object can be removed from the cache. For example pinned objects can not be removed.

指定者:

canRemove 在类中 CacheObject

返回:

true if it can be removed

getMemory

public int getMemory()

从类复制的说明: CacheObject

Get the estimated used memory.

指定者:

getMemory 在类中 CacheObject

返回:

number of words (one word is 4 bytes)