org.bukkit.metadata

类 LazyMetadataValue

java.lang.Object

org.bukkit.metadata.MetadataValueAdapter

org.bukkit.metadata.LazyMetadataValue

所有已实现的接口:

MetadataValue

直接已知子类:

FixedMetadataValue

public class LazyMetadataValue
extends MetadataValueAdapter

The LazyMetadataValue class implements a type of metadata that is not computed until another plugin asks for it.

By making metadata values lazy, no computation is done by the providing plugin until absolutely necessary (if ever). Additionally, LazyMetadataValue objects cache their values internally unless overridden by a LazyMetadataValue.CacheStrategy or invalidated at the individual or plugin level. Once invalidated, the LazyMetadataValue will recompute its value when asked.

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	LazyMetadataValue.CacheStrategy Describes possible caching strategies for metadata.

字段概要

从类继承的字段 org.bukkit.metadata.MetadataValueAdapter

owningPlugin

构造器概要

构造器

限定符	构造器和说明
protected	LazyMetadataValue(Plugin owningPlugin) Protected special constructor used by FixedMetadataValue to bypass standard setup.
	LazyMetadataValue(Plugin owningPlugin, java.util.concurrent.Callable<java.lang.Object> lazyValue) Initialized a LazyMetadataValue object with the default CACHE_AFTER_FIRST_EVAL cache strategy.
	LazyMetadataValue(Plugin owningPlugin, LazyMetadataValue.CacheStrategy cacheStrategy, java.util.concurrent.Callable<java.lang.Object> lazyValue) Initializes a LazyMetadataValue object with a specific cache strategy.

方法概要

限定符和类型	方法和说明
void	invalidate() Invalidates this metadata item, forcing it to recompute when next accessed.
java.lang.Object	value() Fetches the value of this metadata item.

从类继承的方法 org.bukkit.metadata.MetadataValueAdapter

asBoolean, asByte, asDouble, asFloat, asInt, asLong, asShort, asString, getOwningPlugin

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

LazyMetadataValue

public LazyMetadataValue(Plugin owningPlugin,
                         java.util.concurrent.Callable<java.lang.Object> lazyValue)

Initialized a LazyMetadataValue object with the default CACHE_AFTER_FIRST_EVAL cache strategy.

参数:

owningPlugin - the Plugin that created this metadata value.

lazyValue - the lazy value assigned to this metadata value.

LazyMetadataValue

public LazyMetadataValue(Plugin owningPlugin,
                         LazyMetadataValue.CacheStrategy cacheStrategy,
                         java.util.concurrent.Callable<java.lang.Object> lazyValue)

Initializes a LazyMetadataValue object with a specific cache strategy.

参数:

owningPlugin - the Plugin that created this metadata value.

cacheStrategy - determines the rules for caching this metadata value.

lazyValue - the lazy value assigned to this metadata value.

LazyMetadataValue

protected LazyMetadataValue(Plugin owningPlugin)

Protected special constructor used by FixedMetadataValue to bypass standard setup.

参数:

owningPlugin - the owning plugin

方法详细资料

value

public java.lang.Object value()

从接口复制的说明: MetadataValue

Fetches the value of this metadata item.

返回:

the metadata value.

invalidate

public void invalidate()

从接口复制的说明: MetadataValue

Invalidates this metadata item, forcing it to recompute when next accessed.