001/* 002 * Copyright 2002-2019 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.expression.spel.ast; 018 019import org.springframework.expression.TypedValue; 020import org.springframework.expression.spel.ExpressionState; 021import org.springframework.expression.spel.SpelNode; 022 023/** 024 * An 'identifier' {@link SpelNode}. 025 * 026 * @author Andy Clement 027 * @since 3.0 028 */ 029public class Identifier extends SpelNodeImpl { 030 031 private final TypedValue id; 032 033 034 public Identifier(String payload, int startPos, int endPos) { 035 super(startPos, endPos); 036 this.id = new TypedValue(payload); 037 } 038 039 040 @Override 041 public String toStringAST() { 042 return String.valueOf(this.id.getValue()); 043 } 044 045 @Override 046 public TypedValue getValueInternal(ExpressionState state) { 047 return this.id; 048 } 049 050}