protected function applicationCompleteHandler(event:FlexEvent):void
{
var array:Array = [];
array.push(new Vga("a",10));
array.push(new Vga("c",2));
array.push(new Vga("f",1.3));
array.push(new Vga("d",1.1));
array.push(new Vga("e",16));
array.push(new Vga("b",0));
trace(array.toString());
//output: [a,10],[c,2],[f,1.3],[d,1.1],[e,16],[b,0]
var defaultSort:Array = array.sort();//榛樿鎺掑簭
trace(defaultSort.toString());
//output: [a,10],[b,0],[c,2],[d,1.1],[e,16],[f,1.3]
var sortFunArray:Array = array.sort(sortFun);//浣跨敤鑷畾涔夋柟娉曟帓搴?/span>
trace(sortFunArray.toString());
//output: [b,0],[d,1.1],[f,1.3],[c,2],[a,10],[e,16]
}
/**鑷畾涔夋帓搴忔柟娉?/span>*/
public function sortFun(a:Vga,b:Vga):int{
if(a.price < b.price){
return -1; //a鍦ㄥ墠,b鍦ㄥ悗
}else if(a.price == b.price){
return 0; //ab浣嶇疆涓嶅彉
}else{
return 1; //b鍦ㄥ墠,a鍦ㄥ悗
}
}
/**鎺掑簭VO瀵硅薄*/
public class Vga
{
public var name:String;
public var price:Number;
public function Vga(name:String,price:Number)
{
this.name = name;
this.price = price;
}
public function toString():String{
return "["+this.name+","+this.price+"]";
}
}
{
var array:Array = [];
array.push(new Vga("a",10));
array.push(new Vga("c",2));
array.push(new Vga("f",1.3));
array.push(new Vga("d",1.1));
array.push(new Vga("e",16));
array.push(new Vga("b",0));
trace(array.toString());
//output: [a,10],[c,2],[f,1.3],[d,1.1],[e,16],[b,0]
var defaultSort:Array = array.sort();//榛樿鎺掑簭
trace(defaultSort.toString());
//output: [a,10],[b,0],[c,2],[d,1.1],[e,16],[f,1.3]
var sortFunArray:Array = array.sort(sortFun);//浣跨敤鑷畾涔夋柟娉曟帓搴?/span>
trace(sortFunArray.toString());
//output: [b,0],[d,1.1],[f,1.3],[c,2],[a,10],[e,16]
}
/**鑷畾涔夋帓搴忔柟娉?/span>*/
public function sortFun(a:Vga,b:Vga):int{
if(a.price < b.price){
return -1; //a鍦ㄥ墠,b鍦ㄥ悗
}else if(a.price == b.price){
return 0; //ab浣嶇疆涓嶅彉
}else{
return 1; //b鍦ㄥ墠,a鍦ㄥ悗
}
}
/**鎺掑簭VO瀵硅薄*/
public class Vga
{
public var name:String;
public var price:Number;
public function Vga(name:String,price:Number)
{
this.name = name;
this.price = price;
}
public function toString():String{
return "["+this.name+","+this.price+"]";
}
}
ArrayCollection鎺掑簭
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
<mx:Script>
<![CDATA[
import mx.collections.SortField;
import mx.collections.Sort;
import mx.collections.ArrayCollection;
private var acSort:ArrayCollection=
new ArrayCollection([{id:0,userName:"zhangSan",age:21},
{id:2,userName:"liSi",age:24},
{id:1,userName:"wangWu",age:31}]);
private function sortAc():ArrayCollection{
var sort:Sort=new Sort();
//鎸夌収ID鍗囧簭鎺掑簭
sort.fields=[new SortField("id")];
//鎸夌収userName闄嶅簭鎺掑簭
sort.fields=[new SortField("userName",true,true)];
//鍏堟寜ID鍗囧簭,鍐嶆寜userName闄嶅簭
sort.fields[new SortField("id"),new SortField("userName",true,true)];
acSort.sort=sort;
acSort.refresh();//鏇存柊
return acSort;
}
/*
鍏跺疄鐪嬬湅API灝變竴鐩簡(jiǎn)鐒?br /> SortField () 鏋勯犲嚱鏁?nbsp;
public function SortField(name:String = null,
caseInsensitive:Boolean = false,
descending:Boolean = false,
numeric:Object = null)
鍙傛暟
name:String (default = null) — 姝ゅ瓧孌電敤鏉ヨ繘琛屾瘮杈冪殑灞炴х殑鍚嶇О銆傚鏋滆瀵硅薄涓虹畝鍗曠被鍨嬶紝鍒欎紶閫?nbsp;null銆?nbsp;
caseInsensitive:Boolean (default = false) — 鍦ㄥ瀛楃涓茶繘琛屾帓搴忔椂錛屾寚紺烘瘮杈冭繍綆楃鏄惁蹇界暐鍊肩殑澶у皬鍐欍?br /> descending:Boolean (default = false) — 鎸囩ず姣旇緝榪愮畻絎︽槸鍚︽寜闄嶅簭鎺掑垪欏圭洰銆?nbsp;
numeric:Object (default = null) — 鎸囩ず姣旇緝榪愮畻絎︽槸鍚︽寜緙栧彿鑰屼笉鎸夊瓧姣嶉『搴忔瘮杈冩帓搴忛」鐩?nbsp;
*/
]]>
</mx:Script>
</mx:Application>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
<mx:Script>
<![CDATA[
import mx.collections.SortField;
import mx.collections.Sort;
import mx.collections.ArrayCollection;
private var acSort:ArrayCollection=
new ArrayCollection([{id:0,userName:"zhangSan",age:21},
{id:2,userName:"liSi",age:24},
{id:1,userName:"wangWu",age:31}]);
private function sortAc():ArrayCollection{
var sort:Sort=new Sort();
//鎸夌収ID鍗囧簭鎺掑簭
sort.fields=[new SortField("id")];
//鎸夌収userName闄嶅簭鎺掑簭
sort.fields=[new SortField("userName",true,true)];
//鍏堟寜ID鍗囧簭,鍐嶆寜userName闄嶅簭
sort.fields[new SortField("id"),new SortField("userName",true,true)];
acSort.sort=sort;
acSort.refresh();//鏇存柊
return acSort;
}
/*
鍏跺疄鐪嬬湅API灝變竴鐩簡(jiǎn)鐒?br /> SortField () 鏋勯犲嚱鏁?nbsp;
public function SortField(name:String = null,
caseInsensitive:Boolean = false,
descending:Boolean = false,
numeric:Object = null)
鍙傛暟
name:String (default = null) — 姝ゅ瓧孌電敤鏉ヨ繘琛屾瘮杈冪殑灞炴х殑鍚嶇О銆傚鏋滆瀵硅薄涓虹畝鍗曠被鍨嬶紝鍒欎紶閫?nbsp;null銆?nbsp;
caseInsensitive:Boolean (default = false) — 鍦ㄥ瀛楃涓茶繘琛屾帓搴忔椂錛屾寚紺烘瘮杈冭繍綆楃鏄惁蹇界暐鍊肩殑澶у皬鍐欍?br /> descending:Boolean (default = false) — 鎸囩ず姣旇緝榪愮畻絎︽槸鍚︽寜闄嶅簭鎺掑垪欏圭洰銆?nbsp;
numeric:Object (default = null) — 鎸囩ず姣旇緝榪愮畻絎︽槸鍚︽寜緙栧彿鑰屼笉鎸夊瓧姣嶉『搴忔瘮杈冩帓搴忛」鐩?nbsp;
*/
]]>
</mx:Script>
</mx:Application>
]]>
ORM緙撳瓨絳栫暐
1.浜嬪姟綰х紦瀛?session level cache)
session鐢熷懡鍛ㄦ湡鐨勭紦瀛?鍏抽棴session鍗蟲(chóng)秷浜?/p>
2.搴旂敤綰?榪涚▼綰х紦瀛?sessionFactory level cache)
鏌愪釜搴旂敤涓殑鍏變韓緙撳瓨,澶氫釜浜嬪姟鍙互鍏變韓,鍦╯essionFactory灞傚疄鐜?鎵鏈塻essionFactory鍒涘緩鐨剆ession鍙互鍏變韓.
3.鍒嗗竷寮忕紦瀛?/p>
澶氫釜JVM鍏變韓鐨勭紦瀛?閫氳繃榪滅▼鏈哄埗瀹炵幇緙撳瓨鏁版嵁鍚屾,浠繪剰瀹炰緥淇敼鏁版嵁,鎵鏈夌殑JVM閮借鏇存柊緙撳瓨.
Hibernate鏁版嵁緙撳瓨
1.鍐呴儴緙撳瓨(session level)涓綰х紦瀛?/span>
鏄簨鍔＄駭鐨勭紦瀛?session涓淮鎶ょ殑涓涓狹ap,Map鐨刱ey鏄寘鍚簡(jiǎn)鏁版嵁綾誨瀷鍜宨d,浠庢暟鎹簱鍔犺澆鐨勬暟鎹兘浼?xì)杩涘叆Map緙撳瓨?shù)?閫氳繃session鍔犺澆鏁版嵁鏃朵細(xì)鍏堝湪session緙撳瓨閲屾壘,涓綰х紦瀛樻槸session鐨刾rivate鏁版嵁,session瀹炰緥娑堜骸灝辨竻闄や簡(jiǎn),鍦ㄥ簲鐢ㄤ腑灝變繚鎸佸湪涓嬈¤姹傜殑寮濮嬪拰緇撴潫涔嬮棿.
涓鑸敱Hibernate鑷姩緇存姢,涔熸敮鎸佹墜鍔ㄧ淮鎶?/p>
session.evit(Object obj) 灝嗘寔涔呭寲瀵硅薄浠庝竴綰х紦瀛樹(shù)腑娓呴櫎.
session.clear() 娓呯┖涓綰х紦瀛?/p>
session.contains(Object obj) 鍒ゆ柇鎸囧畾鐨勫璞℃槸鍚﹀瓨鍦ㄤ簬涓綰х紦瀛樹(shù)腑.
session.flush() 鍒鋒柊涓綰х紦瀛樺尯鐨勫唴瀹?浣跨紦瀛樹(shù)笌鏁版嵁搴撴暟鎹繚鎸佸悓姝?
2.浜岀駭緙撳瓨(sessionFactory level)
鍖呭惈浜?jiǎn)搴旂敤珩斿拰鍒嗗竷寮忕殑缂撳?鐢辨湰sessionFactory鐨勬墍鏈塻ession瀹炰緥鍏變韓,session鎿嶄綔鏃朵細(xì)鍏堟煡涓綰х紦瀛?鐒跺悗鏌ヤ簩綰х紦瀛?鏈鍚庡啀鏌ョ墿鐞嗘暟鎹簱.瑕佷嬌鐢ㄤ簩綰х紦瀛樺繀欏昏榪涜閰嶇疆.
閫傚悎鐢ㄧ紦瀛樼殑鏁版嵁
1.涓嶄細(xì)琚叾浠栧簲鐢ㄤ慨鏀?/p>
鍖呮嫭鐩存帴鐢↗DBC淇敼絳?鍥犱負(fù)鍏朵粬搴旂敤淇敼浜?jiǎn)鏁版嵁涔嬪悗hibernate騫朵笉鐭ラ亾,涓嶈兘鑷姩鏇存柊緙撳瓨,涓嶈繃鍙互鎵嬪姩鏇存柊緙撳瓨
2.鏁版嵁澶у皬鍙互鎺ュ彈,姣曠珶鍐呭瓨璧勬簮涔熶笉澶?/p>
3.鏁版嵁鏇存柊棰戠巼浣?姣斿鏁版嵁瀛楀吀絳夊父閲忔暟鎹?
4.鍙兘琚郴緇熼綣佷嬌鐢?/p>
5.闈炲叧閿殑鏁版嵁
6.涓嶄細(xì)琚茍鍙戣闂殑鏁版嵁
甯哥敤鐨勪簩綰х紦瀛樻彃浠?/p>
EHCache org.hibernate.cache.EhCacheProvider
OSCache org.hibernate.cache.OSCacheProvider
SwarmCahe org.hibernate.cache.SwarmCacheProvider 鎻愪緵浜?jiǎn)鍒嗗竷寮?/p>
JBossCache org.hibernate.cache.TreeCacheProvider 鎻愪緵浜?jiǎn)鍒嗗竷寮?/p>
EHCache浜岀駭緙撳瓨閰嶇疆鏂規(guī)硶
1.鍚敤浜岀駭緙撳瓨棣栧厛瑕佸湪hibernate.cfg.xml閰嶇疆
<hibernate-configuration>
<session-factory>
<!-- 閰嶇疆浜岀駭緙撳瓨鎻掍歡EHCache鐨凱rovider綾?->
<property name="hibernate.cache.provider_class">
org.hibernate.cache.EhCacheProvider
</property>
<!-- 鍚姩"鏌ヨ緙撳瓨" -->
<property name="hibernate.cache.use_query_cache">
true
</property>
</session-factory>
</hibernate-configuration>
2.鐒跺悗閰嶇疆cache鐨勯厤緗枃浠秂hcache.xml
<ehcache>
<!-- maxElementsInMemory涓虹紦瀛樺璞＄殑鏈澶ф暟鐩?
eternal璁劇疆鏄惁姘歌繙涓嶈繃鏈?
timeToIdleSeconds瀵硅薄澶勪簬絀洪棽鐘舵佺殑鏈澶氱鏁?
timeToLiveSeconds瀵硅薄澶勪簬緙撳瓨鐘舵佺殑鏈澶氱鏁?
overflowtodisk鍐呭瓨?shù)笉鑳鲦椂鏄惁鍚敤纾佺洏缂撳?-->
<diskStore path="java.io.tmpdir"/>
<defaultCache maxElementsInMemory="10000" eternal="false" timeToIdleSeconds="300" timeToLiveSeconds="600" overflowToDisk="true"/>
</ehcache>
3.鏈鍚庤鍦ㄦ槧灝勬枃浠?**.hbm.xml涓寚瀹氬疄浣撶殑緙撳瓨鍚屾絳栫暐
<?xml version="1.0" encoding='UTF-8'?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >
<hibernate-mapping>
<class>
<!-- 璁劇疆璇ユ寔涔呭寲綾葷殑浜岀駭緙撳瓨騫跺彂璁塊棶絳栫暐-->
<cache usage="read-write"/>
<set name = "xxx">
<cache usage="read-only" />
</set>
</class>
</hibernate-mapping>
hibernate鎻愪緵鐨勭紦瀛樺悓姝ョ瓥鐣?鍙互鍦╱sage涓緗?/p>
read-only
鍙
nonstrict-read-write
鏇存柊棰戠巼涓嶉珮
read-write
涓ユ牸鍙鍐?/p>
transactional(Ecache涓嶆敮鎸?
浜嬪姟鍨嬬紦瀛?/p>