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package org.richfaces.validator;

import java.util.Collection;

import javax.el.ValueExpression;
import javax.faces.context.FacesContext;

/**
 * 
 * This interface describes service that gets Bean Validator constrains for EL-expressions
 * 
 *
 * @author [email protected]
 *
 */
public interface BeanValidatorService {
    /**
     * 
     * Get all constrains for given EL-expression
     * 
     *
     * @param context
     * @param expression
     * @param message TODO
     */
    Collection getConstrains(FacesContext context, ValueExpression expression, String message,
        Class... groups);

    /**
     * 
     * Validate expression for a new value.
     * 
     *
     * @param context
     * @param expression
     * @param newValue
     * @param groups
     */
    Collection validateExpression(FacesContext context, ValueExpression expression, Object newValue, Class... groups);

    /**
     * 
     * Validate entire object.
     * 
     *
     * @param context
     * @param object
     * @param groups
     */
    Collection validateObject(FacesContext context, Object object, Class... groups);
}