spring Identifier 源码
spring Identifier 代码
文件路径：/spring-expression/src/main/java/org/springframework/expression/spel/ast/Identifier.java
/*
* Copyright 2002-2019 the original author or authors.
*
* Licensed 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
*
* https://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.springframework.expression.spel.ast;
import org.springframework.expression.TypedValue;
import org.springframework.expression.spel.ExpressionState;
import org.springframework.expression.spel.SpelNode;
/**
* An 'identifier' {@link SpelNode}.
*
* @author Andy Clement
* @since 3.0
*/
public class Identifier extends SpelNodeImpl {
private final TypedValue id;
public Identifier(String payload, int startPos, int endPos) {
super(startPos, endPos);
this.id = new TypedValue(payload);
}
@Override
public String toStringAST() {
return String.valueOf(this.id.getValue());
}
@Override
public TypedValue getValueInternal(ExpressionState state) {
return this.id;
}
}
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