MessageContext API

[Misha79]

Hi ..
I want to know more about MessageContext API used with SWF2.0.
When is messageContext initialized and if there is any error in view state it gets value set.
but does it get reset with each new error in next view statein same flow.

In my application ,error is carried along next states means messageContext wont clear up.
Should i explicitly clearMessages() in each state.?

[dr_pompeii]

Hello

I want to know more about MessageContext API used with SWF2.0.

1) We have available SWF 2.3.x
2) have you read the API for MessageContext SWF2.0.X?

When is messageContext initialized and if there is any error in view state it gets value set.
but does it get reset with each new error in next view statein same flow.

Post your code, this is weird

The error(s) shown are related with the model referenced for your view-state?
If yes, the error(s) must exists until you leave such view-state because you fixed all the suggested error messages, therefore such error(s) should not exists anymore

If you are saving customized error(s) messages in flowScope it going to remain until you complete the flow process or if yourself delete or make null such saved data in such scope

Perhaps was a bug, but again post your code

In my application ,error is carried along next states means messageContext wont clear up.
Should i explicitly clearMessages() in each state.?

If you would post the error messages, would be better to get a clear idea

[Misha79]

I have a validationBean which have validation methods.This validationBean is defined as flow instance variable in flows and thus validation methods are called in each next-state.
On NEXt -validationMethods are called and i added resetMessage1() with them so if CURRENT state wont propogate validation error message in NEXT state( which otherwise was,even if validation passes but failed first.)

Problem : From CURRENT state to BACK state still propogates validation error message .
and i am not calling validation methods on back-button transitions thus reset is not calling.
What are my alternatives.
1 should i call resetMessage on each BACK transition?
2.Can i somehow change the scope of var -validationBean from flow scope to requestscope so message1 clears up automatically.
43.Would defining validationBean as a bean help instead of defining as flow instance var.

<var name="validationBean" class="com.cti.ew8.validator.ValidationBean"/>
 <view-state id="Q1" view="name" model="validationBean">		
<on-render>
<set name="requestScope.pageName" value="Name" />
</on-render>
<transition on="prev" to="selectionPage" />
<transition on="next" to="Q2">
<evaluate expression="validationBean.validateOneText(requestParameters.text_1, 'message1', messageContext, 'validation.enterName')" />
</transition>
<transition on="saveAndExit" to="finish" />
</view-state>

public class ValidationBean implements Serializable {
	private static final long	serialVersionUID	= 1L;

	private Message[]			messages;

	private final List<Message>	message1			= new ArrayList<Message>();

	public List<Message> getMessage1() {
		return message1;
	}

	private void resetMessage1() {
		message1.clear();

	}


	}

	
	private void buildMessages(String sourceKey, MessageContext messageContext,
						String resourceKey) {
                              MessageBuilder builder = new MessageBuilder();
		messageContext.addMessage(builder.error().source(sourceKey).code(resourceKey).build());

                              messages = messageContext.getAllMessages();
		for (Message m : messages) 
			message1.add(m);
	}

	private boolean fieldEmptyCheck(String fieldValue, boolean isValid,String sourceKey, MessageContext messageContext,String resourceKey) {
		if (!org.springframework.util.StringUtils.hasText(fieldValue)) {
			buildMessages(sourceKey, messageContext, resourceKey);
			isValid = false;
		}
		return isValid;
	}

	public boolean validateOneCombo(String field, String sourceKey,
						MessageContext messageContext, String resourceKey) {
		resetMessage1();
		if ((field == null) || (field.equalsIgnoreCase("0"))) {
		buildMessages(sourceKey, messageContext, resourceKey);
			return false;
		}

		else {

			return true;

		}

	}

	public boolean validateRadio(String field, String sourceKey,MessageContext messageContext, String resourceKey) {
		
                             resetMessage1(); //this helps clear out validation error or messages on NEXt view state but PREV still shows.
		boolean isValid = true;
		if (field == null) {
		buildMessages(sourceKey, messageContext, resourceKey);
		isValid = false;
		}
		return isValid;
	}

My JSP.---

This is portion of my jsp that shows error messages.
<c:forEach var="errorMsg" items="${validationBean.message1}">
 <c:if test="${errorMsg != null}"> 
<div id="errorWrapper">
${errorMsg.text}


</div>
</c:if>
</c:forEach>