001/* 002 * Copyright 2002-2008 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.core; 018 019import org.springframework.util.Assert; 020 021/** 022 * {@link InheritableThreadLocal} subclass that exposes a specified name 023 * as {@link #toString()} result (allowing for introspection). 024 * 025 * @author Juergen Hoeller 026 * @since 2.5.2 027 * @see NamedThreadLocal 028 */ 029public class NamedInheritableThreadLocal<T> extends InheritableThreadLocal<T> { 030 031 private final String name; 032 033 034 /** 035 * Create a new NamedInheritableThreadLocal with the given name. 036 * @param name a descriptive name for this ThreadLocal 037 */ 038 public NamedInheritableThreadLocal(String name) { 039 Assert.hasText(name, "Name must not be empty"); 040 this.name = name; 041 } 042 043 @Override 044 public String toString() { 045 return this.name; 046 } 047 048}