/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* // Copyright (c) 1998, 2007, Oracle. All rights reserved.
*
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can obtain
* a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
* or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the License
* Header, with the fields enclosed by brackets [] replaced by your own
* identifying information: "Portions Copyrighted [year]
* [name of copyright owner]"
*
* Contributor(s):
*
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package oracle.toplink.essentials.internal.queryframework;
import java.security.AccessController;
import java.security.PrivilegedActionException;
import java.util.Comparator;
import java.lang.reflect.Constructor;
import oracle.toplink.essentials.exceptions.*;
import oracle.toplink.essentials.internal.security.PrivilegedAccessHelper;
import oracle.toplink.essentials.internal.security.PrivilegedGetConstructorFor;
import oracle.toplink.essentials.internal.security.PrivilegedInvokeConstructor;
import oracle.toplink.essentials.internal.security.PrivilegedNewInstanceFromClass;
/**
* <p><b>Purpose</b>: A SortedCollectionContainerPolicy is ContainerPolicy whose
* container class implements the SortedInterface interface.
* Added for BUG # 3233263
* <p>
* <p><b>Responsibilities</b>:
* Provide the functionality to operate on an instance of a SortedSet.
*
* @see ContainerPolicy
* @see MapContainerPolicy
*/
public class SortedCollectionContainerPolicy extends CollectionContainerPolicy {
protected Comparator m_comparator = null;
/**
* INTERNAL:
* Construct a new policy.
*/
public SortedCollectionContainerPolicy() {
super();
}
/**
* INTERNAL:
* Construct a new policy for the specified class.
*/
public SortedCollectionContainerPolicy(Class containerClass) {
super(containerClass);
}
/**
* INTERNAL:
* Sets a comparator object for this policy to use when instantiating
* a new SortedSet object.
*/
public void setComparator(Comparator comparator) {
m_comparator = comparator;
}
/**
* INTERNAL:
* Return the stored comparator
*/
public Comparator getComparator() {
return m_comparator;
}
/**
* INTERNAL
* Override from ContainerPolicy. Need to maintain the comparator in the
* new instance
*/
public Object containerInstance() {
try {
if (m_comparator != null) {
Object[] arguments = new Object[] { m_comparator };
Class[] constructClass = new Class[] { Comparator.class };
Constructor constructor = null;
if (PrivilegedAccessHelper.shouldUsePrivilegedAccess()){
try {
constructor = (Constructor)AccessController.doPrivileged(new PrivilegedGetConstructorFor(getContainerClass(), constructClass, false));
return AccessController.doPrivileged(new PrivilegedInvokeConstructor(constructor, arguments));
} catch (PrivilegedActionException exception) {
throw QueryException.couldNotInstantiateContainerClass(getContainerClass(), exception.getException());
}
} else {
constructor = PrivilegedAccessHelper.getConstructorFor(getContainerClass(), constructClass, false);
return PrivilegedAccessHelper.invokeConstructor(constructor, arguments);
}
} else {
if (PrivilegedAccessHelper.shouldUsePrivilegedAccess()){
try {
return AccessController.doPrivileged(new PrivilegedNewInstanceFromClass(getContainerClass()));
} catch (PrivilegedActionException exception) {
throw QueryException.couldNotInstantiateContainerClass(getContainerClass(), exception.getException());
}
} else {
return PrivilegedAccessHelper.newInstanceFromClass(getContainerClass());
}
}
} catch (Exception ex) {
throw QueryException.couldNotInstantiateContainerClass(getContainerClass(), ex);
}
}
}