Determining If One Permission Implies Another : Permission « Security « Java Tutorial

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Java Tutorial » Security » Permission

36. 29. 3. Determining If One Permission Implies Another


import java.io.FilePermission;

import java.security.Permission;



public class Main {

  public static void main(String[] argv) throws Exception {

    Permission perm1 = new FilePermission("/tmp/*", "read,write");

    Permission perm2 = new FilePermission("/tmp/abc", "read");



    if (perm1.implies(perm2)) {

      System.out.println("perm1 implies perm2"); 

    }



  }

}

36. 29. Permission
	36. 29. 1.	Creating Your Own Permissions
	36. 29. 2.	Checking Read/Write Permission for a Directory
	36. 29. 3.	Determining If One Permission Implies Another
	36. 29. 4.	extends BasicPermission
	36. 29. 5.	boolean Permission.implies(Permission permission)
	36. 29. 6.	Controlling Access to an Object using a permission
	36. 29. 7.	Listing All Permissions Granted to a Loaded Class
	36. 29. 8.	grant ability to create and write c:\temp\myfile
	36. 29. 9.	grant ability to list files in the user's home directory
	36. 29. 10.	grant ability to read any file or directory under c:\temp
	36. 29. 11.	grant ability to delete any file or directory in c:\temp\mydir
	36. 29. 12.	grant ability to execute (see Runtime.exec()) the file c:\java.exe
	36. 29. 13.	grant ability to read and write any file in current directory
	36. 29. 14.	grant ability to read any file under current directory
	36. 29. 15.	grant ability to read any file
	36. 29. 16.	grant ability to write the 'myprop' system properties
	36. 29. 17.	grant ability to read and write the 'myprop' system properties
	36. 29. 18.	grant ability to read all properties that start with 'myprops.'
	36. 29. 19.	grant ability to read all system properties
	36. 29. 20.	grant ability to write all system properties
	36. 29. 21.	grant ability to read and write all system properties

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