package org.eclipse.jst.jsf.common.runtime.internal.model.behavioural;

import java.util.List;

import org.eclipse.jst.jsf.common.runtime.internal.model.ViewObject;
import org.eclipse.jst.jsf.common.runtime.internal.model.decorator.ValidatorDecorator;
import org.eclipse.jst.jsf.common.runtime.internal.model.decorator.ValueChangeListenerDecorator;

/**
 * A design time analog for the JSF runtime EditableValueHolder interface.
 * 
 * @author cbateman
 * 
 */
public interface IEditableValueHolderInfo extends IValueHolderInfo {
    /**
     * @return the flag indicating whether the value of the value holder should
     *         be evaluated in the apply request values phase instead of the
     *         process validations phase
     */
    boolean isImmediate();

    /**
     * @return true if the value has been set
     */
    boolean isLocalSetValue();

    /**
     * @return true if validation should consider this field required (must be
     *         non-empty).
     */
    boolean isRequired();

    /**
     * @return the submitted, unconverted value of the component.
     */
    Object getSubmittedValue();

    /**
     * @return false if validation has determined that the value property of
     *         this component is not valid.
     */
    boolean isValid();

    /**
     * <b> NOTE: this method is deprecated in the runtime spec and exists for
     * backward compatibility with JSF 1.1. You should avoid using it except in
     * conjunction with JSF 1.1 tooling support. This method will be deprecated
     * once the runtime spec removes the underlying API</b>
     * 
     * @return a method binding expression that refers to a validator method
     */
    String getValidator();

    /**
     * <b> NOTE: this method is deprecated in the runtime spec and exists for
     * backward compatibility with JSF 1.1. You should avoid using it except in
     * conjunction with JSF 1.1 tooling support. This method will be deprecated
     * once the runtime spec removes the underlying API</b>
     * 
     * @return a method binding expression that refers to a value change
     *         listener
     */
    String getValueChangeListener();

    /**
     * Add validator to the list of validators for this component. Should be
     * equivalent to
     * {@link ViewObject#addDecorator(org.eclipse.jst.jsf.common.runtime.internal.model.decorator.Decorator, Class)}.
     * 
     * @param validator
     */
    void addValidator(ValidatorDecorator validator);

    /**
     * @return the list of validators for this component. Should be considered
     *         unmodifiable (may throw exception).
     */
    List/* <ValidatorDecorator> */getValidators();

    /**
     * Add the value change listener to this component.
     * 
     * @param valueChangeListenerInfo
     */
    void addValueChangeListener(
            ValueChangeListenerDecorator valueChangeListenerInfo);

    /**
     * @return the list of value change listeners. Should be considered
     *         unmodifiable (may throw exception).
     */
    List/* <ValueChangeListenerDecorator> */getValueChangeListeners();
}