Changes.java

/*
 * ModeShape (http://www.modeshape.org)
 *
 * 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 org.modeshape.schematic.document;

/**
 * Representation of a set of changes made to a document.
 * 
 * @author Randall Hauch <rhauch@redhat.com> (C) 2011 Red Hat Inc.
 */
public interface Changes {

    /**
     * Determine if there are any changes.
     * 
     * @return true if there is at least one change, or false if there are none
     */
    boolean isEmpty();

    /**
     * Obtain a clone of these changes.
     * 
     * @return the clone of these changes; never null
     */
    Changes clone();
}