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DWR is easy Ajax for Java. It makes it simple to call Java code directly from Javascript. It gets rid of almost all the boilerplate code between the web browser and your Java code. This version 4.0.2 works with Jakarta Servlet 4.0.2.

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package org.directwebremoting.datasync;

import org.directwebremoting.util.LocalUtil;

/**
 * An {@link AttributeValueExtractor} that simply calls {@link LocalUtil#getProperty}
 * to extract attribute values.
 * @author Joe Walker [joe at getahead dot ltd dot uk]
 */
public class PojoAttributeValueExtractor implements AttributeValueExtractor
{
    /* (non-Javadoc)
     * @see org.directwebremoting.datasync.AttributeValueExtractor#getValue(java.lang.Object, java.lang.String)
     */
    public Object getValue(Object bean, String property)
    {
        return LocalUtil.getProperty(bean, property, Object.class);
    }
}