// This Source Code is in the Public Domain per: http://litesoft.org/License.txt
package org.litesoft.bo.views;

import org.litesoft.bo.*;
import org.litesoft.bo.change.*;

public interface VoAttribute<V extends IViewObject> extends ChangeControlledBoAttribute
{
    /**
     * @return null means NOT derived from a path rooted on the DerivedFromRegisteredObjectType,
     *         !null means that its value is basically derived from a path rooted on the DerivedFromRegisteredObjectType (!null when the DerivedFromRegisteredObjectType is null is non-sensical)
     */
    public String getDerivedFromAttributePath();

    public boolean isQueryViewAttribute();

//    public AttributeMetaData getMetaData();

    public boolean isRequired();

    public <T> T getAttributeValue( V pVO );

    public void setAttributeValue( V pVO, Object pValue )
            throws AttributeIllegalArgumentException;
}