JavaTM 2 Platform
Standard Ed. 5.0

java.beans
Ŭ·¡½º Beans

java.lang.Object 
  »óÀ§¸¦ È®Àå java.beans.Beans

public class Beans
extends Object

ÀÌ Å¬·¡½º´Â ¸î°³ÀÇ ´Ù¸ñÀû bean Á¦¾î ¸Þ¼­µå¸¦ Á¦°øÇÕ´Ï´Ù.


»ý¼ºÀÚ °³¿ä
Beans ()
           
 
¸Þ¼­µå °³¿ä
static Object getInstanceOf (Object  bean, Class <? > targetType)
          ÁöÁ¤µÈ bean ·ÎºÎÅÍ, ±× ¼Ò½º °´Ã¼ÀÇ ÁöÁ¤µÈ ŸÀÔÀÇ ºä¸¦ ³ªÅ¸³»´Â °´Ã¼¸¦ ÃëµæÇÕ´Ï´Ù.
static Object instantiate (ClassLoader  cls, String  beanName)
           JavaBean ÀνºÅϽº¸¦ »ý¼ºÇÕ´Ï´Ù.
static Object instantiate (ClassLoader  cls, String  beanName, BeanContext  beanContext)
           JavaBean ÀνºÅϽº¸¦ »ý¼ºÇÕ´Ï´Ù.
static Object instantiate (ClassLoader  cls, String  beanName, BeanContext  beanContext, AppletInitializer  initializer)
          bean ÀνºÅϽº¸¦ »ý¼ºÇÕ´Ï´Ù.
static boolean isDesignTime ()
          µðÀÚÀÎ ¸ðµåÀÏÁö ¾î¶³Áö¸¦ ÆÇÁ¤ÇÕ´Ï´Ù.
static boolean isGuiAvailable ()
          bean°¡ GUI¸¦ ÀÌ¿ëÇÒ ¼ö Àִ ȯ°æ¿¡¼­ µ¿ÀÛÇÏ°í ÀÖÀ»Áö ¾î¶³Áö¸¦ ÆÇÁ¤ÇÕ´Ï´Ù.
static boolean isInstanceOf (Object  bean, Class <? > targetType)
          bean °¡ ÁöÁ¤µÈ ŸÀÔÀÇ Å¸°ÙÀ¸·Î¼­ Ç¥½ÃÇÒ ¼ö ÀÖÀ»Áö ¾î¶³Áö¸¦ ÆÇÁ¤ÇÕ´Ï´Ù.
static void setDesignTime (boolean isDesignTime)
          ¾îÇø®ÄÉÀÌ¼Ç ±¸Ãà ȯ°æ¿¡¼­ µ¿ÀÛÇÏ°í ÀÖÀ»Áö ¾î¶³Áö¸¦ ³ªÅ¸³À´Ï´Ù.
static void setGuiAvailable (boolean isGuiAvailable)
          GUI Á¶ÀÛÀÌ »ç¿ë °¡´ÉÇÑ È¯°æ¿¡¼­ µ¿ÀÛÇÏ°í ÀÖÀ»Áö ¾î¶³Áö¸¦ ³ªÅ¸³À´Ï´Ù.
 
Ŭ·¡½º java.lang. Object ·ÎºÎÅÍ »ó¼ÓµÈ ¸Þ¼­µå
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

»ý¼ºÀÚ »ó¼¼

Beans

public Beans()
¸Þ¼­µåÀÇ »ó¼¼

instantiate

public static Object  instantiate(ClassLoader  cls,
                                 String  beanName)
                          throws IOException,

                                 ClassNotFoundException 

JavaBean ÀνºÅϽº¸¦ »ý¼ºÇÕ´Ï´Ù.

ÆĶó¹ÌÅÍ:
cls - bean¸¦ ÀÛ¼ºÇØ¾ß ÇÒ Å¬·¡½º ·Î´õ. ÀÌ°ÍÀÌ nullÀÎ °æ¿ì´Â ½Ã½ºÅÛ Å¬·¡½º ·Î´õ¸¦ »ç¿ëÇÏ´Â
beanName - Ŭ·¡½º ·Î´õ³»ÀÇ bean À̸§. ¿¹¸¦ µé¾î,"sun.beanbox.foobah"
¿¹¿Ü:
ClassNotFoundException - Á÷·ÄÈ­ µÈ °´Ã¼ÀÇ Å¬·¡½º°¡ ¹ß°ßµÇÁö ¾Ê¾Ò´ø °æ¿ì
IOException - ÀÔÃâ·Â ¿¡·¯°¡ ¹ß»ýÇßÀ» °æ¿ì

instantiate

public static Object  instantiate(ClassLoader  cls,
                                 String  beanName,
                                 BeanContext  beanContext)
                          throws IOException,

                                 ClassNotFoundException 

JavaBean ÀνºÅϽº¸¦ »ý¼ºÇÕ´Ï´Ù.

ÆĶó¹ÌÅÍ:
cls - bean¸¦ ÀÛ¼ºÇØ¾ß ÇÒ Å¬·¡½º ·Î´õ. ÀÌ°ÍÀÌ nullÀÎ °æ¿ì´Â ½Ã½ºÅÛ Å¬·¡½º ·Î´õ¸¦ »ç¿ëÇÏ´Â
beanName - Ŭ·¡½º ·Î´õ³»ÀÇ bean À̸§. ¿¹¸¦ µé¾î,"sun.beanbox.foobah"
beanContext - »õ·Î¿î bean »óÀÚó°¡ µÇ´Â BeanContext
¿¹¿Ü:
ClassNotFoundException - Á÷·ÄÈ­ µÈ °´Ã¼ÀÇ Å¬·¡½º°¡ ¹ß°ßµÇÁö ¾Ê¾Ò´ø °æ¿ì
IOException - ÀÔÃâ·Â ¿¡·¯°¡ ¹ß»ýÇßÀ» °æ¿ì

instantiate

public static Object  instantiate(ClassLoader  cls,
                                 String  beanName,
                                 BeanContext  beanContext,
                                 AppletInitializer  initializer)
                          throws IOException,

                                 ClassNotFoundException 
bean ÀνºÅϽº¸¦ »ý¼ºÇÕ´Ï´Ù.

bean´Â Ŭ·¡½º ·Î´õ¿¡ °ü°è ºÙÀÏ ¼ö ÀÖ¾ú´ø À̸§À» ±âº»À¸·Î ÀÛ¼ºµË´Ï´Ù. ÀÌ À̸§Àº,"a.b.c"¿Í °°ÀÌ Á¡À¸·Î½á ´Ü¶ôÁöÀº À̸§ÀÌ ¾Æ´Ï¸é ¾ÈµË´Ï´Ù.

Beans 1.0 ¿¡¼­´Â À̸§Àº Á÷·ÄÈ­ µÈ °´Ã¼ ¶Ç´Â Ŭ·¡½º¸¦ ³ªÅ¸³¾ ¼ö°¡ ÀÖ½À´Ï´Ù. Àå·¡, ´Ù¸¥ µµ±¸°¡ Ãß°¡µÉ °¡´É¼ºÀÌ ÀÖ½À´Ï´Ù. Beans 1.0 ¿¡¼­´Â ¿ì¼± beanName¸¦ Á÷·ÄÈ­ µÈ °´Ã¼·Î¼­ 󸮸¦ ½ÃµµÇØ ´ÙÀ½¿¡ Ŭ·¡½º¸íÀ¸·Î¼­ ó¸®ÇÕ´Ï´Ù.

beanName¸¦ Á÷·ÄÈ­ µÈ °´Ã¼ÀÇ À̸§À¸·Î¼­ »ç¿ëÇÏ´Â °æ¿ì, ÁöÁ¤µÈ beanName¸¦ ÀÚ¿ø Æнº¸íÀ¸·Î º¯È¯ÇØ Á¢¹Ì¸» ". ser"¸¦ Ãß°¡ÇÕ´Ï´Ù. ´ÙÀ½¿¡ ±× ÀÚ¿øÀ¸·ÎºÎÅÍ, Á÷·ÄÈ­ µÈ °´Ã¼ÀÇ ·Îµå¸¦ ½ÃµµÇÕ´Ï´Ù.

¿¹¸¦ µé¾î beanName¿¡ "x.y"°¡ ÁöÁ¤µÇ¸é, Beans.instantiate´Â ¿ì¼± ÀÚ¿ø "x/y.ser" ·ÎºÎÅÍ Á÷·ÄÈ­ µÈ °´Ã¼ÀÇ read¸¦ ½ÃµµÇØ ½ÇÆÐÇϸé Ŭ·¡½º "x.y" ·Îµå¸¦ ½ÃµµÇØ ±× Ŭ·¡½ºÀÇ ÀνºÅϽº¸¦ »ý¼ºÇÕ´Ï´Ù.

bean°¡ java.applet.Applet ¾Æ·ùÇüÀÎ °æ¿ì´Â Ư¼öÇÑ ÃʱâÈ­¸¦ ÇÕ´Ï´Ù. ¿ì¼±, µðÆúÆ®ÀÇ AppletStub¿Í AppletContext°¡ Á¦°øµË´Ï´Ù. ´ÙÀ½¿¡ Ŭ·¡½º¸íÀ¸·ÎºÎÅÍ ÀνºÅϽº°¡ »ý¼ºµÇ¸é, ¾ÖÇø´ÀÇ "init" ¸Þ¼­µå°¡ È£ÃâµË´Ï´Ù (bean°¡ Á÷·ÄÈ­ º¹¿øµÇ°í ÀÖÀ¸¸é, ÀÌ ½ºÅÜÀº ½ºÅµ µÈ´Ù).

¾ÖÇø´ÀÎ bean ¿¡¼­´Â ¾ÖÇø´À¸·Î "start"¸¦ È£ÃâÇÏ´Â °ÍÀº È£ÃâÃøÀÇ ¿ªÇÒÀÔ´Ï´Ù. ¿Ã¹Ù¸¥ µ¿ÀÛÀ» À§Çؼ­´Â ¾ÖÇø´ÀÌ °¡½Ã AWT ÄÁÅ×À̳ʿ¡ Ãß°¡µÇ°í ³ª¼­ ÀÌ Ã³¸®¸¦ ½Ç½ÃÇÕ´Ï´Ù.

beans.instantiate ·Î ÀÛ¼ºÇÑ ¾ÖÇø´Àº ºê¶ó¿ìÀú³»¿¡¼­ µ¿ÀÛÇÏ´Â ¾ÖÇø´°ú´Â ´Ù¼Ò ´Ù¸¥ ȯ°æ¿¡¼­ µ¿ÀÛÇÕ´Ï´Ù. ƯÈ÷, bean ¾ÖÇø´Àº ¡¸ÆĶó¹ÌÅÍ¡¹¿¡ ¾×¼¼½º ÇÒ ¼ö ¾ø±â ¶§¹®¿¡ ÆĶó¹ÌÅÍ°ª¸¦ ¼³Á¤Çϱâ À§Çؼ­ ÇÁ·ÎÆÛƼÀÇ get/set ¸Þ¼­µå¸¦ Á¦°øÇÏ´Â ÀÏÀÌ ÀÖ½À´Ï´Ù. bean ¾ÖÇø´ÀÇ °³¹ßÀÚ´Â bean ¾ÖÇø´À» JDK appletviewer (·¹ÆÛ·±½º ºê¶ó¿ìÀú ȯ°æ¿ë) ¹× BDK BeanBox (·¹ÆÛ·±½º bean ÄÁÅ×À̳ʿë)·Î Å×½ºÆ®ÇÏ´Â °ÍÀ» ÃßõÇÕ´Ï´Ù.

ÆĶó¹ÌÅÍ:
cls - bean¸¦ ÀÛ¼ºÇØ¾ß ÇÒ Å¬·¡½º ·Î´õ. ÀÌ°ÍÀÌ nullÀÎ °æ¿ì´Â ½Ã½ºÅÛ Å¬·¡½º ·Î´õ¸¦ »ç¿ëÇÏ´Â
beanName - Ŭ·¡½º ·Î´õ³»ÀÇ bean À̸§. ¿¹¸¦ µé¾î,"sun.beanbox.foobah"
beanContext - »õ·Î¿î bean »óÀÚó°¡ µÇ´Â BeanContext
initializer - »õ·Î¿î bean AppletInitializer
¿¹¿Ü:
ClassNotFoundException - Á÷·ÄÈ­ µÈ °´Ã¼ÀÇ Å¬·¡½º°¡ ¹ß°ßµÇÁö ¾Ê¾Ò´ø °æ¿ì
IOException - ÀÔÃâ·Â ¿¡·¯°¡ ¹ß»ýÇßÀ» °æ¿ì

getInstanceOf

public static Object  getInstanceOf(Object  bean,
                                   Class <? > targetType)
ÁöÁ¤µÈ bean ·ÎºÎÅÍ, ±× ¼Ò½º °´Ã¼ÀÇ ÁöÁ¤µÈ ŸÀÔÀÇ ºä¸¦ ³ªÅ¸³»´Â °´Ã¼¸¦ ÃëµæÇÕ´Ï´Ù.

°á°ú´Â °°Àº °´Ã¼ ¶Ç´Â ´Ù¸¥ °´Ã¼ÀÔ´Ï´Ù. ¿ä±¸µÈ Ÿ°ÙÆ®ºä°¡ ¾ø´Â °æ¿ì´Â ÁöÁ¤µÈ bean°¡ ¸®Åϵ˴ϴ٠.

ÀÌ ¸Þ¼­µå´Â Beans 1.0 À¸·Î Àå·¡, º¸´Ù À¯¿¬ÇÑ bean µ¿ÀÛÀ» Ãß°¡Çϱâ À§ÇÑ ÈÅÀ¸·Î¼­ ÁغñµÇ¾î ÀÖ½À´Ï´Ù.

ÆĶó¹ÌÅÍ:
bean - ºä¸¦ ¾ò´Â °´Ã¼
targetType - ¾ò´Â ºäÀÇ Å¸ÀÔ

isInstanceOf

public static boolean isInstanceOf(Object  bean,
                                   Class <? > targetType)
bean °¡ ÁöÁ¤µÈ ŸÀÔÀÇ Å¸°ÙÀ¸·Î¼­ Ç¥½ÃÇÒ ¼ö ÀÖÀ»Áö ¾î¶³Áö¸¦ ÆÇÁ¤ÇÕ´Ï´Ù. ÁöÁ¤µÈ bean¿¡ ´ëÇؼ­ Beans.getInstanceof ¸Þ¼­µå¸¦ »ç¿ëÇØ, ÁöÁ¤µÈ targetType ŸÀÔÀÇ ºä¸¦ ³ªÅ¸³»´Â °´Ã¼¸¦ ÃëµæÇÒ ¼ö ÀÖ´Â °æ¿ì´Â °á°ú´Â true°¡ µË´Ï´Ù.

ÆĶó¹ÌÅÍ:
bean - ºä¸¦ ¾ò´Â bean
targetType - ¾ò´Â ºäÀÇ Å¸ÀÔ
¹Ýȯ°ª:
ÁöÁ¤µÈ bean°¡ ÁöÁ¤µÈ targetType¸¦ Áö¿øÇÏ´Â °æ¿ì´Â true

isDesignTime

public static boolean isDesignTime()
µðÀÚÀÎ ¸ðµåÀÏÁö ¾î¶³Áö¸¦ ÆÇÁ¤ÇÕ´Ï´Ù.

¹Ýȯ°ª:
¾îÇø®ÄÉÀÌ¼Ç ±¸Ãà ȯ°æ¿¡¼­ µ¿ÀÛÇÏ°í ÀÖ´Â °æ¿ì´Â true
°ü·Ã Ç׸ñ:
DesignMode

isGuiAvailable

public static boolean isGuiAvailable()
bean°¡ GUI¸¦ ÀÌ¿ëÇÒ ¼ö Àִ ȯ°æ¿¡¼­ µ¿ÀÛÇÏ°í ÀÖÀ»Áö ¾î¶³Áö¸¦ ÆÇÁ¤ÇÕ´Ï´Ù.

¹Ýȯ°ª:
bean °¡ ´ëÈ­Çü GUI¸¦ »ç¿ëÇÒ ¼ö ÀÖ¾î ´ÙÀÌ¾Ë·Î±× ¹Ú½ºÀÇ Ç¥½ÃµîÀ» ½Ç½ÃÇÒ ¼ö Àִ ȯ°æ¿¡¼­ µ¿ÀÛÇÏ°í ÀÖ´Â °æ¿ì´Â true. º¸Åë, À©µµ¿ì ȯ°æ¿¡¼­´Â true¸¦ µ¹·ÁÁÖ°í, ¼­¹ö ȯ°æÇÏ¿¡ ÀÖ´ÂÁö, ¶Ç´Â ¾îÇø®ÄÉÀ̼ÇÀÌ ÀÏ°ý ó¸® ÀÛ¾÷ÀÇ ÀϺημ­ µ¿ÀÛÇÏ°í ÀÖ´Â °æ¿ì´Â false¸¦ µ¹·ÁÁÖ´Â
°ü·Ã Ç׸ñ:
Visibility

setDesignTime

public static void setDesignTime(boolean isDesignTime)
                          throws SecurityException 
¾îÇø®ÄÉÀÌ¼Ç ±¸Ãà ȯ°æ¿¡¼­ µ¿ÀÛÇÏ°í ÀÖÀ»Áö ¾î¶³Áö¸¦ ³ªÅ¸³À´Ï´Ù.

ÀÌ ¸Þ¼­µå´Â ½ÃÅ¥·¯Æ¼¸¦ üũÇϹǷΠ½Å·ÚÇÒ ¼ö ¾ø´Â ¾ÖÇø´µîÀ¸·Î´Â »ç¿ëÇÒ ¼ö ¾ø½À´Ï´Ù. Áï, ½ÃÅ¥·¯Æ¼ ¸Å´ÏÀú°¡ Á¸ÀçÇÏ´Â °æ¿ì´Â ½ÃÅ¥·¯Æ¼ ¸Å´ÏÀúÀÇ checkPropertiesAccess ¸Þ¼­µå°¡ È£ÃâµË´Ï´Ù. ÀÌ°Í¿¡ ÀÇÇØ SecurityException°¡ ¹ß»ýµÇ´Â °æ¿ì°¡ ÀÖ½À´Ï´Ù.

ÆĶó¹ÌÅÍ:
isDesignTime - ¾îÇø®ÄÉÀÌ¼Ç ±¸Ãà Åø·Î µ¿ÀÛÇÏ°í ÀÖ´Â °æ¿ì´Â true
¿¹¿Ü:
SecurityException - ½ÃÅ¥·¯Æ¼ ¸Å´ÏÀú°¡ Á¸ÀçÇØ, ½ÃÅ¥·¯Æ¼ ¸Å´ÏÀúÀÇ checkPropertiesAccess ¸Þ¼­µå°¡ ½Ã½ºÅÛ ÇÁ·ÎÆÛƼÀÇ ¼³Á¤À» Çã°¡ÇÏÁö ¾Ê´Â °æ¿ì
°ü·Ã Ç׸ñ:
SecurityManager.checkPropertiesAccess()

setGuiAvailable

public static void setGuiAvailable(boolean isGuiAvailable)
                            throws SecurityException 
GUI Á¶ÀÛÀÌ »ç¿ë °¡´ÉÇÑ È¯°æ¿¡¼­ µ¿ÀÛÇÏ°í ÀÖÀ»Áö ¾î¶³Áö¸¦ ³ªÅ¸³À´Ï´Ù.

ÀÌ ¸Þ¼­µå´Â ½ÃÅ¥·¯Æ¼¸¦ üũÇϹǷΠ½Å·ÚÇÒ ¼ö ¾ø´Â ¾ÖÇø´µîÀ¸·Î´Â »ç¿ëÇÒ ¼ö ¾ø½À´Ï´Ù. Áï, ½ÃÅ¥·¯Æ¼ ¸Å´ÏÀú°¡ Á¸ÀçÇÏ´Â °æ¿ì´Â ½ÃÅ¥·¯Æ¼ ¸Å´ÏÀúÀÇ checkPropertiesAccess ¸Þ¼­µå°¡ È£ÃâµË´Ï´Ù. ÀÌ°Í¿¡ ÀÇÇØ SecurityException°¡ ¹ß»ýµÇ´Â °æ¿ì°¡ ÀÖ½À´Ï´Ù.

ÆĶó¹ÌÅÍ:
isGuiAvailable - GUI Á¶ÀÛÀÌ °¡´ÉÇÑ °æ¿ì´Â true
¿¹¿Ü:
SecurityException - ½ÃÅ¥·¯Æ¼ ¸Å´ÏÀú°¡ Á¸ÀçÇØ, ½ÃÅ¥·¯Æ¼ ¸Å´ÏÀúÀÇ checkPropertiesAccess ¸Þ¼­µå°¡ ½Ã½ºÅÛ ÇÁ·ÎÆÛƼÀÇ ¼³Á¤À» Çã°¡ÇÏÁö ¾Ê´Â °æ¿ì
°ü·Ã Ç׸ñ:
SecurityManager.checkPropertiesAccess()

JavaTM 2 Platform
Standard Ed. 5.0

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