BE THE CODER > Spring > Expression Language

The Spring Expression Language (SpEL) is a simple and powerful expression language which helps to query and manipulate objects at runtime. The following example shows accessing evaluation context root variable.

File Name :	com/bethecoder/tutorials/spring3/tests/spel/RootVariableTest.java
Author :	Sudhakar KV
Email :	[email protected]


package com.bethecoder.tutorials.spring3.tests.spel;



import org.springframework.expression.ExpressionParser;

import org.springframework.expression.spel.standard.SpelExpressionParser;

import org.springframework.expression.spel.support.StandardEvaluationContext;



import com.bethecoder.tutorials.spring3.basic.Employee;



public class RootVariableTest {



  /**

   * @param args

   */

  public static void main(String[] args) {



    StandardEvaluationContext stdContext = 

      new StandardEvaluationContext(new Employee(1, "ABC", 9999));

    

    ExpressionParser parser = new SpelExpressionParser();

    Employee emp = parser.parseExpression("#root").getValue(stdContext, Employee.class);

    System.out.println(emp);

    

    String name = parser.parseExpression("#root.name").getValue(stdContext, String.class);

    System.out.println(name);

  }



}

Root Variable