| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.commons.text.diff; |
| |
| /** |
| * Command representing the keeping of one object present in both sequences. |
| * <p> |
| * When one object of the first sequence <code>equals</code> another objects in |
| * the second sequence at the right place, the {@link EditScript edit script} |
| * transforming the first sequence into the second sequence uses an instance of |
| * this class to represent the keeping of this object. The objects embedded in |
| * these type of commands always come from the first sequence. |
| * </p> |
| * |
| * @see StringsComparator |
| * @see EditScript |
| * |
| * @param <T> object type |
| * @since 1.0 |
| */ |
| public class KeepCommand<T> extends EditCommand<T> { |
| |
| /** |
| * Simple constructor. Creates a new instance of KeepCommand |
| * |
| * @param object the object belonging to both sequences (the object is a |
| * reference to the instance in the first sequence which is known |
| * to be equal to an instance in the second sequence) |
| */ |
| public KeepCommand(final T object) { |
| super(object); |
| } |
| |
| /** |
| * Accept a visitor. When a <code>KeepCommand</code> accepts a visitor, it |
| * calls its {@link CommandVisitor#visitKeepCommand visitKeepCommand} method. |
| * |
| * @param visitor the visitor to be accepted |
| */ |
| @Override |
| public void accept(final CommandVisitor<T> visitor) { |
| visitor.visitKeepCommand(getObject()); |
| } |
| } |