/*
* Copyright 2012, Thomas Kerber
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package milk.jpatch.access;
import milk.jpatch.access.AccessPatch.Access;
/**
* Denotes that access flags got modified.
* @author Thomas Kerber
* @version 1.0.0
*/
public class AccessFlagsModif extends AccessFlagsPatch{
private static final long serialVersionUID = -3469540111664787425L;
/**
* The patch of the access.
*/
private final AccessPatch access;
/**
* The patch of the remaining flags.
*/
private final RestFlagsPatch rest;
/**
* The level (class/field/method) of these flags.
*/
private final AccessLevel accessLevel;
/**
*
* @param access The access patch.
* @param rest The patch of the remaining flags.
* @param a The level of these flags.
*/
public AccessFlagsModif(AccessPatch access, RestFlagsPatch rest,
AccessLevel a){
this.access = access;
this.rest = rest;
accessLevel = a;
}
/**
*
* @return The access rights patch.
*/
public AccessPatch getAccessPatch(){
return access;
}
/**
*
* @return The patch for the remaining flags.
*/
public RestFlagsPatch getRestFlagsPatch(){
return rest;
}
/**
*
* @return The access level.
*/
public AccessLevel getAccessLevel(){
return accessLevel;
}
@Override
public int patch(int flags){
flags = rest.patch(flags);
Access a = AccessPatch.getAccess(flags, accessLevel);
// Erase previous access flags
flags ^= a.getFlags();
a = access.patch(a);
// Add new access flags
flags |= a.getFlags();
return flags;
}
}