| /* |
| * 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.tomcat.dbcp.pool2; |
| |
| /** |
| * A base class for common functionality. |
| * |
| * @since 2.4.3 |
| */ |
| public abstract class BaseObject { |
| |
| @Override |
| public String toString() { |
| final StringBuilder builder = new StringBuilder(); |
| builder.append(getClass().getSimpleName()); |
| builder.append(" ["); |
| toStringAppendFields(builder); |
| builder.append("]"); |
| return builder.toString(); |
| } |
| |
| /** |
| * Used by sub-classes to include the fields defined by the sub-class in the |
| * {@link #toString()} output. |
| * |
| * @param builder Field names and values are appended to this object |
| */ |
| protected void toStringAppendFields(final StringBuilder builder) { |
| // do nothing by default, needed for b/w compatibility. |
| } |
| } |