SubjectDomainCombiner (Java SE 11 & JDK 11 ) (original) (raw)

• java.lang.Object

• • javax.security.auth.SubjectDomainCombiner

• All Implemented Interfaces:
  [DomainCombiner](../../../java/security/DomainCombiner.html "interface in java.security")

public class SubjectDomainCombiner
extends Object
implements DomainCombiner
A SubjectDomainCombiner updates ProtectionDomains with Principals from the Subject associated with thisSubjectDomainCombiner.
Since:
1.4

• • Constructor Summary

  Constructors

  Constructor	Description
  SubjectDomainCombiner​(Subject subject)	Associate the provided Subject with thisSubjectDomainCombiner.

  • Method Summary

  All Methods Instance Methods Concrete Methods

  Modifier and Type	Method	Description
  ProtectionDomain[]	combine​(ProtectionDomain[] currentDomains,ProtectionDomain[] assignedDomains)	Update the relevant ProtectionDomains with the Principals from the Subject associated with thisSubjectDomainCombiner.
  Subject	getSubject()	Get the Subject associated with thisSubjectDomainCombiner.

     * ### Methods declared in class java.lang.[Object](../../../java/lang/Object.html "class in java.lang")  
     `[clone](../../../java/lang/Object.html#clone%28%29), [equals](../../../java/lang/Object.html#equals%28java.lang.Object%29), [finalize](../../../java/lang/Object.html#finalize%28%29), [getClass](../../../java/lang/Object.html#getClass%28%29), [hashCode](../../../java/lang/Object.html#hashCode%28%29), [notify](../../../java/lang/Object.html#notify%28%29), [notifyAll](../../../java/lang/Object.html#notifyAll%28%29), [toString](../../../java/lang/Object.html#toString%28%29), [wait](../../../java/lang/Object.html#wait%28%29), [wait](../../../java/lang/Object.html#wait%28long%29), [wait](../../../java/lang/Object.html#wait%28long,int%29)`

• • Constructor Detail

     * #### SubjectDomainCombiner  
     public SubjectDomainCombiner​([Subject](Subject.html "class in javax.security.auth") subject)  
     Associate the provided `Subject` with this`SubjectDomainCombiner`.  
     Parameters:  
     `subject` \- the `Subject` to be associated with with this `SubjectDomainCombiner`.  

  • Method Detail

    * #### getSubject  
    public [Subject](Subject.html "class in javax.security.auth") getSubject()  
    Get the `Subject` associated with this`SubjectDomainCombiner`.  
    Returns:  
    the `Subject` associated with this`SubjectDomainCombiner`, or `null` if no `Subject` is associated with this`SubjectDomainCombiner`.  
    Throws:  
    `[SecurityException](../../../java/lang/SecurityException.html "class in java.lang")` \- if the caller does not have permission to get the `Subject` associated with this`SubjectDomainCombiner`.  
    * #### combine  
    public [ProtectionDomain](../../../java/security/ProtectionDomain.html "class in java.security")[] combine​([ProtectionDomain](../../../java/security/ProtectionDomain.html "class in java.security")[] currentDomains,  
                                      [ProtectionDomain](../../../java/security/ProtectionDomain.html "class in java.security")[] assignedDomains)  
    Update the relevant ProtectionDomains with the Principals from the `Subject` associated with this`SubjectDomainCombiner`.  
     A new `ProtectionDomain` instance is created for each non-static `ProtectionDomain` ( (staticPermissionsOnly() == false) in the `currentDomains` array. Each new `ProtectionDomain` instance is created using the `CodeSource`,`Permission`s and `ClassLoader` from the corresponding `ProtectionDomain` in`currentDomains`, as well as with the Principals from the `Subject` associated with this`SubjectDomainCombiner`. Static ProtectionDomains are combined as-is and no new instance is created.  
     All of the ProtectionDomains (static and newly instantiated) are combined into a new array. The ProtectionDomains from the`assignedDomains` array are appended to this new array, and the result is returned.  
     Note that optimizations such as the removal of duplicate ProtectionDomains may have occurred. In addition, caching of ProtectionDomains may be permitted.  
    Specified by:  
    `[combine](../../../java/security/DomainCombiner.html#combine%28java.security.ProtectionDomain%5B%5D,java.security.ProtectionDomain%5B%5D%29)` in interface `[DomainCombiner](../../../java/security/DomainCombiner.html "interface in java.security")`  
    Parameters:  
    `currentDomains` \- the ProtectionDomains associated with the current execution Thread, up to the most recent privileged `ProtectionDomain`. The ProtectionDomains are listed in order of execution, with the most recently executing `ProtectionDomain` residing at the beginning of the array. This parameter may be `null` if the current execution Thread has no associated ProtectionDomains.  
    `assignedDomains` \- the ProtectionDomains inherited from the parent Thread, or the ProtectionDomains from the privileged `context`, if a call to`AccessController.doPrivileged(..., context)` had occurred This parameter may be `null` if there were no ProtectionDomains inherited from the parent Thread, or from the privileged `context`.  
    Returns:  
    a new array consisting of the updated ProtectionDomains, or `null`.

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