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From "Antonio Agudo (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (JEXL-129) Inner type attributes cannot be resolved in expressions
Date Wed, 08 Feb 2012 14:43:59 GMT

     [ https://issues.apache.org/jira/browse/JEXL-129?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Antonio Agudo updated JEXL-129:
-------------------------------

    Description: 
When using inner types e.g. for unit tests, it is impossible to resolve bean attributes from
beans that are otherwise available in the JexlContext. I don't know about the implications
for real world systems, but in testing this can be a pain.

Junit Example: 

package test;

import org.apache.commons.jexl2.Expression;
import org.apache.commons.jexl2.JexlContext;
import org.apache.commons.jexl2.JexlEngine;
import org.apache.commons.jexl2.MapContext;
import org.junit.Test;

import static junit.framework.Assert.assertEquals;

public class TestJEXL {
    @Test
    public void test() {
        JexlEngine jexl = new JexlEngine();
        Expression exp = jexl.createExpression("b.i + b.i");

        FakeBean b = new FakeBean();
        JexlContext jc = new MapContext();
        jc.set("b", b);

        Object results = exp.evaluate(jc);
        System.out.println(results);
        assertEquals("20",results);

    }

    private static class FakeBean {
        private int i = 10;
        private String key = "myval";

        public int getI() {
            return i;
        }

        public void setI(int i) {
            this.i = i;
        }

        public String getKey() {
            return key;
        }

        public void setKey(String key) {
            this.key = key;
        }

    }
}


  was:
When using inner types e.g. for unit tests, it is impossible to resolve bean attributes from
beans that are otherwise available in the JexlContext. I don't know about the implications
for real world systems, but in testing this can be a pain.

Junit Example: 

package test;

import org.apache.commons.jexl2.Expression;
import org.apache.commons.jexl2.JexlContext;
import org.apache.commons.jexl2.JexlEngine;
import org.apache.commons.jexl2.MapContext;
import org.junit.Test;

import static junit.framework.Assert.assertEquals;

public class TestJEXL {
    @Test
    public void test() {
        JexlEngine jexl = new JexlEngine();
        Expression exp = jexl.createExpression("b.i + b.i");

        FakeBean b = new FakeBean();
        JexlContext jc = new MapContext();
        jc.set("b", b);

        Object results = exp.evaluate(jc);
        System.out.println(results);
        assertEquals("10",results);

    }

    private static class FakeBean {
        private int i = 10;
        private String key = "myval";

        public int getI() {
            return i;
        }

        public void setI(int i) {
            this.i = i;
        }

        public String getKey() {
            return key;
        }

        public void setKey(String key) {
            this.key = key;
        }

    }
}


    
> Inner type attributes cannot be resolved in expressions
> -------------------------------------------------------
>
>                 Key: JEXL-129
>                 URL: https://issues.apache.org/jira/browse/JEXL-129
>             Project: Commons JEXL
>          Issue Type: Bug
>    Affects Versions: 2.1.1
>         Environment: JDK 6
>            Reporter: Antonio Agudo
>
> When using inner types e.g. for unit tests, it is impossible to resolve bean attributes
from beans that are otherwise available in the JexlContext. I don't know about the implications
for real world systems, but in testing this can be a pain.
> Junit Example: 
> package test;
> import org.apache.commons.jexl2.Expression;
> import org.apache.commons.jexl2.JexlContext;
> import org.apache.commons.jexl2.JexlEngine;
> import org.apache.commons.jexl2.MapContext;
> import org.junit.Test;
> import static junit.framework.Assert.assertEquals;
> public class TestJEXL {
>     @Test
>     public void test() {
>         JexlEngine jexl = new JexlEngine();
>         Expression exp = jexl.createExpression("b.i + b.i");
>         FakeBean b = new FakeBean();
>         JexlContext jc = new MapContext();
>         jc.set("b", b);
>         Object results = exp.evaluate(jc);
>         System.out.println(results);
>         assertEquals("20",results);
>     }
>     private static class FakeBean {
>         private int i = 10;
>         private String key = "myval";
>         public int getI() {
>             return i;
>         }
>         public void setI(int i) {
>             this.i = i;
>         }
>         public String getKey() {
>             return key;
>         }
>         public void setKey(String key) {
>             this.key = key;
>         }
>     }
> }

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