JavaTM 2 Platform
Standard Ed. 5.0

java.security
Ŭ·¡½º Policy

java.lang.Object 
  »óÀ§¸¦ È®Àå java.security.Policy

public abstract class Policy
extends Object

Java ¾îÇø®ÄÉÀÌ¼Ç È¯°æÀÇ system security Æú¸®½Ã (°¢Á¾ ¼Ò½ºÀÇ ÄÚµå·Î ÀÌ¿ëÇÒ ¼ö ÀÖ´Â ¾×¼¼½º±ÇÀº ¾î¶² °ÍÀÎÁö¸¦ ÁöÁ¤ÇÑ´Ù)¸¦ ³ªÅ¸³»´Â Ãß»ó Ŭ·¡½ºÀÔ´Ï´Ù. Áï, ½ÃÅ¥·¯Æ¼ Æú¸®½Ã´Â ÀÌ Policy Ŭ·¡½º¿¡¼­ abstract ¸Þ¼­µåÀÇ ±¸ÇöÀ» Á¦°øÇÏ´Â Policy ¼­ºê Ŭ·¡½º¿¡ ÇØ Ç¥ÇöµË´Ï´Ù.

Ç×»ó À¯È¿ÇÑ Policy ¿ÀºêÁ§Æ®´Â 1 °³ »ÓÀÔ´Ï´Ù.

Policy ¿ÀºêÁ§Æ®°¡ »ç¿ëÇÏ´Â Æú¸®½Ã Á¤º¸ÀÇ ¼Ò½ºÀÇ À§Ä¡´Â Policy ±¸Çö¿¡ Á¸ÇÕ´Ï´Ù. Æú¸®½ÃÀÇ ¼³Á¤Àº, ¿¹¸¦ µé¾î, Ç÷§ ASCII ÆÄÀÏ, Policy Ŭ·¡½ºÀÇ Á÷·ÄÈ­ µÈ ¹ÙÀ̳븮Çʵå, µ¥ÀÌŸº£À̽ºµîÀ¸·Î ÇØ¼­ Æ÷ÇÔÇÒ ¼ö ÀÖ½À´Ï´Ù.

ÇöÀç ÀνºÅç µÇ°í ÀÖ´Â Policy ¿ÀºêÁ§Æ®´Â getPolicy ¸Þ¼­µå¸¦ È£ÃâÇÏ´Â °Í¿¡ ÇØ ÃëµæÇÒ ¼ö ÀÖ¾îsetPolicy ¸Þ¼­µåÀÇ È£Ãâ¿¡ ÇØ (Policy¸¦ ¸®¼ÂÆ® ÇÏ´Â ¾×¼¼½º±Ç ÷ºÎÀÇ ÄÚµå·Î) º¯°æÇÒ ¼ö ÀÖ½À´Ï´Ù.

refresh ¸Þ¼­µå¿¡ ÇØ, Æú¸®½Ã ¿ÀºêÁ§Æ®ÀÇ ÇöÀçÀÇ ¼³Á¤ÀÌ ¸®ÇÁ·¹½¬ ¶Ç´Â Àçµ¶ º¸°í ºÕºñ¾î µË´Ï´Ù.

ÀÌ Ã³¸®´Â ±¸Çö¿¡ Á¸ÇÕ´Ï´Ù. ¿¹¸¦ µé¾î, Æú¸®½Ã ¿ÀºêÁ§Æ®°¡ ±× Æú¸®½Ã¸¦ ¼³Á¤ ÆÄÀÏ¿¡ Æ÷ÇÔÇÏ´Â °æ¿ì¿¡ refresh¸¦ È£ÃâÇϸé, Æú¸®½Ã ¼³Á¤ ÆÄÀÏÀÌ ÀçÂ÷ ÀÐÈü´Ï´Ù. ¸®ÇÁ·¹½¬ µÈ Æú¸®½Ã´Â ProtectionDomain Ŭ·¡½º¿¡´Â À¯È¿ÇÏÁö ¾ÊÀº °æ¿ì°¡ ÀÖ½À´Ï´Ù. ÀÌ Æú¸®½Ã´Â Policy ÇÁ·Î¹ÙÀÌ´õÀÇ implies ¸Þ¼­µåÀÇ ±¸Çö°ú PermissionCollection ±âÀÔ ½ºÆ®·¡ÅÍÁö¿¡ Á¸Çϰí ÀÖ½À´Ï´Ù.

µðÆúÆ®ÀÇ Policy ±¸ÇöÀº, (Java ½ÃÅ¥·¯Æ¼ ÇÁ·ÎÆÛƼ ÆÄÀÏÀÇ) policy.provider ½ÃÅ¥·¯Æ¼ ÇÁ·ÎÆÛƼ¿¡ Èñ¸ÁÇÏ´Â Policy ±¸Çö Ŭ·¡½ºÀÇ ¿ÏÀü ÁöÁ¤¸íÀ» ¼³Á¤ÇÏ´Â °Í¿¡ ÇØ º¯°æÇÒ ¼ö ÀÖ½À´Ï´Ù. Java ½ÃÅ¥·¯Æ¼ ÇÁ·ÎÆÛƼ ÆÄÀÏÀº, <JAVA_HOME>/lib/security/java.security ¶ó´Â À̸§ÀÇ ÆÄÀÏ¿¡ Æ÷ÇԵǰí ÀÖ½À´Ï´Ù. ´Ù¸¸, <JAVA_HOME>´Â JDK °¡ ÀνºÅç µÇ°í ÀÖ´ø µð·ºÅ丮¸¦ ³ªÅ¸³À´Ï´Ù.

°ü·Ã Ç׸ñ:
CodeSource, PermissionCollection, SecureClassLoader

»ý¼ºÀÚ °³¿ä
Policy ()
           
 
¸Þ¼­µå °³¿ä
abstract  PermissionCollection getPermissions (CodeSource  codesource)
          ±Û·Î¹ú Æú¸®½Ã¸¦ Æò°¡ÇØ, ÁöÁ¤µÈ ÄÚµå ¼Ò½ºÀÇ ÄÚµå·Î Çã°¡µÇ°í ÀÖ´Â ¾×¼¼½º±Ç¼¼Æ®¸¦ ÁöÁ¤ÇÏ´Â PermissionCollection ¿ÀºêÁ§Æ®¸¦ µ¹·ÁÁÝ´Ï´Ù.
 PermissionCollection getPermissions (ProtectionDomain  domain)
          ±Û·Î¹ú Æú¸®½Ã¸¦ Æò°¡ÇØ, º¸È£ µµ¸ÞÀÎÀÇ ÁöÁ¤µÈ Ư¼ºÀ¸·Î Çã°¡µÇ°í ÀÖ´Â ¾×¼¼½º±Ç¼¼Æ®¸¦ ÁöÁ¤ÇÏ´Â PermissionCollection ¿ÀºêÁ§Æ®¸¦ µ¹·ÁÁÝ´Ï´Ù.
static Policy getPolicy ()
          ÀνºÅç ³¡³­ Policy ¿ÀºêÁ§Æ®¸¦ µ¹·ÁÁÝ´Ï´Ù.
 boolean implies (ProtectionDomain  domain, Permission  permission)
          ProtectionDomain ¿¡ Çã°¡µÈ ¾×¼¼½º±Ç¿¡ ´ëÇØ ±Û·Î¹ú Æú¸®½Ã¸¦ Æò°¡ÇØ, ±× ¾×¼¼½º±ÇÀÌ Çã°¡µÇ°í ÀÖ´ÂÁö ¾î¶²Áö¸¦ ÆÇÁ¤ÇÕ´Ï´Ù.
abstract  void refresh ()
          Æú¸®½Ã ¼³Á¤À» ¸®ÇÁ·¹½¬ ¶Ç´Â Àçµ¶ º¸°í ºÕºñ¾î ÇÕ´Ï´Ù.
static void setPolicy (Policy  p)
          ½Ã½ºÅÛ ÀüüÀÇ Policy ¿ÀºêÁ§Æ®¸¦ ¼³Á¤ÇÕ´Ï´Ù.
 
Ŭ·¡½º java.lang. Object ·ÎºÎÅÍ »ó¼ÓµÈ ¸Þ¼­µå
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

»ý¼ºÀÚ »ó¼¼

Policy

public Policy()
¸Þ¼­µåÀÇ »ó¼¼

getPolicy

public static Policy  getPolicy()
ÀνºÅç ³¡³­ Policy ¿ÀºêÁ§Æ®¸¦ µ¹·ÁÁÝ´Ï´Ù. ÀÌ °ªÀº setPolicy ¿¡ÀÇ È£Ãâ¿¡ ÇØ º¯°æÀÌ °¡´ÉÇØ¼­, ij½¬ÇÏÁö ¸»¾Æ ÁÖ¼¼¿ä. ÀÌ ¸Þ¼­µå´Â ÃÖÃÊ·Î SecurityPermission("getPolicy") ¾×¼¼½º±ÇÀ» »ç¿ëÇØ SecurityManager.checkPermission¸¦ È£ÃâÇØ, Policy ¿ÀºêÁ§Æ®¸¦ ÃëµæÇØµµ ±¦ÂúÀºÁö ¾î¶²Áö¸¦ È®ÀÎÇÕ´Ï´Ù.

¹Ýȯ°ª:
ÀνºÅç ³¡³­ Policy
¿¹¿Ü:
SecurityException - ½ÃÅ¥·¯Æ¼ ¸Å´ÏÀú°¡ Á¸ÀçÇÏ´Â °æ¿ì¿¡ ½ÃÅ¥·¯Æ¼ ¸Å´ÏÀúÀÇ checkPermission °¡ Policy ¿ÀºêÁ§Æ®ÀÇ ÃëµæÀ» Çã°¡ÇÏÁö ¾ÊÀ» ¶§
°ü·Ã Ç׸ñ:
SecurityManager.checkPermission(Permission), setPolicy(java.security.Policy)

setPolicy

public static void setPolicy(Policy  p)
½Ã½ºÅÛ ÀüüÀÇ Policy ¿ÀºêÁ§Æ®¸¦ ¼³Á¤ÇÕ´Ï´Ù. ÀÌ ¸Þ¼­µå´Â ÃÖÃÊ·Î SecurityPermission("setPolicy") ¾×¼¼½º±ÇÀ» »ç¿ëÇØ SecurityManager.checkPermission¸¦ È£ÃâÇØ, Policy¸¦ ¼³Á¤Çصµ ±¦ÂúÀºÁö ¾î¶²Áö¸¦ È®ÀÎÇÕ´Ï´Ù.

ÆÄ¶ó¹ÌÅÍ:
p - »õ·Î¿î ½Ã½ºÅÛ Policy ¿ÀºêÁ§Æ®
¿¹¿Ü:
SecurityException - ½ÃÅ¥·¯Æ¼ ¸Å´ÏÀú°¡ Á¸ÀçÇÏ´Â °æ¿ì¿¡ ½ÃÅ¥·¯Æ¼ ¸Å´ÏÀúÀÇ checkPermission °¡ Policy ¼³Á¤À» Çã°¡ÇÏÁö ¾ÊÀ» ¶§
°ü·Ã Ç׸ñ:
SecurityManager.checkPermission(Permission), getPolicy()

getPermissions

public abstract PermissionCollection  getPermissions(CodeSource  codesource)
±Û·Î¹ú Æú¸®½Ã¸¦ Æò°¡ÇØ, ÁöÁ¤µÈ ÄÚµå ¼Ò½ºÀÇ ÄÚµå·Î Çã°¡µÇ°í ÀÖ´Â ¾×¼¼½º±Ç¼¼Æ®¸¦ ÁöÁ¤ÇÏ´Â PermissionCollection ¿ÀºêÁ§Æ®¸¦ µ¹·ÁÁÝ´Ï´Ù.

ÆÄ¶ó¹ÌÅÍ:
codesource - È£Ãâ Ãø¿¡ °ü·ÃÇÑ CodeSource. À̰ÍÀº, ÄÚµåÀÇ Ãâó(¼Ò)ÀÎ ¿ø·¡ÀÇ À§Ä¡¿Í ±× ¼­¸íÀÚÀÇ 1 °³ ¶Ç´Â º¹¼öÀÇ °ø°³Å°¸¦ ĸ½¶È­ÇÑ´Ù
¹Ýȯ°ª:
Æú¸®½Ã¿¡ ±Ù°ÅÇØ codesource ÄÚµå·Î Çã°¡µÇ°í ÀÖ´Â ¾×¼¼½º±Ç¼¼Æ®. µ¹·ÁÁÖ°íÁö´Â ¾×¼¼½º±Ç¼¼Æ®´Â »õ·Î¿î °¡º¯ ÀνºÅϽº°¡ ¾Æ´Ï¸é ¾ÈµÇ¾î, Permission ÇüÀÇ ÀÌÁ¾À» ¼­Æ÷Æ®Çϰí ÀÖÀ» Çʿ䰡 ÀÖ½À´Ï´Ù.

getPermissions

public PermissionCollection  getPermissions(ProtectionDomain  domain)
±Û·Î¹ú Æú¸®½Ã¸¦ Æò°¡ÇØ, º¸È£ µµ¸ÞÀÎÀÇ ÁöÁ¤µÈ Ư¼ºÀ¸·Î Çã°¡µÇ°í ÀÖ´Â ¾×¼¼½º±Ç¼¼Æ®¸¦ ÁöÁ¤ÇÏ´Â PermissionCollection ¿ÀºêÁ§Æ®¸¦ µ¹·ÁÁÝ´Ï´Ù.

ÆÄ¶ó¹ÌÅÍ:
domain - È£Ãâ ¹ÙÅÁÀ¸·Î °ü·ÃÇÑ ProtectionDomain
¹Ýȯ°ª:
Æú¸®½Ã¿¡ ±Ù°ÅÇØ domain ·Î Çã°¡µÇ°í ÀÖ´Â ¾×¼¼½º±Ç¼¼Æ®. µ¹·ÁÁÖ°íÁö´Â ¾×¼¼½º±Ç¼¼Æ®´Â »õ·Î¿î °¡º¯ ÀνºÅϽº°¡ ¾Æ´Ï¸é ¾ÈµÇ¾î, Permission ÇüÀÇ ÀÌÁ¾À» ¼­Æ÷Æ®Çϰí ÀÖÀ» Çʿ䰡 ÀÖ½À´Ï´Ù.
µµÀÔµÈ ¹öÁ¯:
1.4
°ü·Ã Ç׸ñ:
ProtectionDomain, SecureClassLoader

implies

public boolean implies(ProtectionDomain  domain,
                       Permission  permission)
ProtectionDomain ¿¡ Çã°¡µÈ ¾×¼¼½º±Ç¿¡ ´ëÇØ ±Û·Î¹ú Æú¸®½Ã¸¦ Æò°¡ÇØ, ±× ¾×¼¼½º±ÇÀÌ Çã°¡µÇ°í ÀÖ´ÂÁö ¾î¶²Áö¸¦ ÆÇÁ¤ÇÕ´Ï´Ù.

ÆÄ¶ó¹ÌÅÍ:
domain - ÆÇÁ¤ ´ë»óÀÇ ProtectionDomain
permission - Æ÷ÇԵǾî ÀÖ´ÂÁö ¾î¶²Áö¸¦ ÆÇÁ¤ÇÏ´Â Permission ¿ÀºêÁ§Æ®
¹Ýȯ°ª:
permission °¡ ÀÌ ProtectionDomain ¿¡ Çã°¡µÈ ¾×¼¼½º±ÇÀÇ ÀûÀýÇÑ ºÎºÐÁýÇÕÀÇ °æ¿ì´Â true
µµÀÔµÈ ¹öÁ¯:
1.4
°ü·Ã Ç׸ñ:
ProtectionDomain

refresh

public abstract void refresh()
Æú¸®½Ã ¼³Á¤À» ¸®ÇÁ·¹½¬ ¶Ç´Â Àçµ¶ º¸°í ºÕºñ¾î ÇÕ´Ï´Ù. ÀÌ ¸Þ¼­µåÀÇ µ¿ÀÛÀº ±¸Çö¿¡ Á¸ÇÕ´Ï´Ù. ¿¹¸¦ µé¾î, ÆÄÀÏÀÇ Çü½ÄÀÇ Æú¸®½Ã¿¡ ´ëÇØ¼­ refresh¸¦ È£ÃâÇϸé, ÆÄÀÏÀÌ Àçµ¶ º¸°í ºÕºñ¾î µË´Ï´Ù.


JavaTM 2 Platform
Standard Ed. 5.0

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