org.jboss.security.acl.BasicACLPermission Maven / Gradle / Ivy
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/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.security.acl;
/**
*
* This enum defines the basic ACL permissions. Each permission defined here is represented by a unique
* integer mask value that is a power of 2 (that is, each permission's bitmask has only one bit on).
*
*
* @author Stefan Guilhen
*/
public enum BasicACLPermission implements BitMaskPermission {
// basic create permission - value = 1
CREATE(1 << 0),
// basic read permission - value = 2
READ(1 << 1),
// basic updated permission - value = 4
UPDATE(1 << 2),
// basic delete permission - value = 8
DELETE(1 << 3);
private int mask;
/**
*
* Buils an instance of {@code BasicACLPermission}.
*
*
* @param mask an integer representing the permission's mask value.
*/
private BasicACLPermission(int mask)
{
this.mask = mask;
}
/**
*
* Obtains this permission's mask value.
*
*/
public int getMaskValue()
{
return this.mask;
}
/**
*
* Returns the binary representation of this permission.
*
*
* @return a {@code String} containing this permission's binary representation.
*/
public String toBinaryString()
{
return Integer.toBinaryString(this.mask);
}
}