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}