[jboss-user] [JBoss Seam] - Re: Bind a string property by reference

[jbuechel]

I see...

The datatable in facelets page:


  | 			<rich:dataTable value="#{entryList}" var="entr"
  | 				rendered="#{entryList.size>0}" id="dtEntryList" rows="10"
  | 				width="100%">
  | 				<f:facet name="header">
  | 					<rich:columnGroup>
  | 						<h:column>
  | 							<h:outputText styleClass="headerText" value="Id" />
  | 						</h:column>
  | 						<h:column>
  | 							<h:outputText styleClass="headerText" value="Title" />
  | 						</h:column>
  | 						<h:column>
  | 							<h:outputText styleClass="headerText" value="Text" />
  | 						</h:column>
  | 					</rich:columnGroup>
  | 				</f:facet>
  | 				<h:column>
  | 					<h:outputText value="#{entr.id}" />
  | 				</h:column>
  | 				<h:column>
  | 					<h:commandLink value="#{entr.title}" action="#{listManager.select}" />
  | 				</h:column>
  | 				<h:column>
  | 					<s:link value="#{entr.text}" action="#{defaultDialogManager.open('Neue Funktion','Funktionsname', entr.text)}" />
  | 					 
  | 					<s:link value="delete"
  | 						action="#{listManager.delete}" />
  | 				</h:column>
  | 			</rich:dataTable>
  | 
  | 

DialogManager class which opens a dialog (rich:modalpanel) by setting the display property true. Also the title, label and the object (called source) which should be modified are passed to the open method:
@Scope(ScopeType.SESSION)
  | @Name("defaultDialogManager")
  | public class DefaultDialogManager implements DialogManager, Serializable {
  | ...
  | 	public String open(String title, String label, Object source){
  | 		log.info("open called");
  | 		
  | 		setDisplay(true);
  | 		
  | 		Map labelMap = new HashMap();
  | 		labelMap.put("title", title);
  | 		labelMap.put("label", label);
  | 		
  | 		inputDialog.init(labelMap, source);
  | 		
  | 		return null;
  | 	}
  | 	public String accept(){
  | 		log.info("accept called");
  | 		inputDialog.accept();
  | 		log.info("accepted: inputDialog.source: "+inputDialog.getSource());
  | 		log.info("accepted: inputDialog.input: "+inputDialog.getInput());
  | 		return close();
  | 	}
  | 
  | ..
  | }
  | 

Dialog facelet contains an h:inputtext and h:commandbutton with an accept action:

  | 	<ui:define name="dialogContent">
  | 		<h:panelGrid columns="1" styleClass="fwc-input-dialog">
  | 			<h:outputLabel for="input">#{defaultDialogManager.inputDialog.labelMap.label}</h:outputLabel>
  | 			<h:inputText id="input"
  | 				value="#{defaultDialogManager.inputDialog.input}" />
  | 		</h:panelGrid>
  | 	</ui:define>
  | 
  | 	<ui:define name="dialogActionButtons">
  | 		<h:commandButton value="#{messages['controls.save']}"
  | 			action="#{defaultDialogManager.accept}" />
  | 		<h:commandButton value="#{messages['controls.cancel']}"
  | 			action="#{defaultDialogManager.cancel}" />
  | 	</ui:define>
  | 

When #{defaultDialogManager.accept} is executed, SimpleInputDialog.accept() is called (inputDialog.accept();)

InputDialog implementation class:

  | public class SimpleInputDialog implements InputDialog {
  | 
  | 	@Logger
  | 	Log log;
  | 
  | 	private Map labelMap;
  | 	private Object source;
  | 	private Object input;
  | 
  | 	public void init(Map labelMap, Object source) {
  | 		
  | 		this.labelMap = labelMap;
  | 		this.source = source;
  | 		this.input = source;
  | 	}
  | 
  | 	public void accept() {
  | 
  | 		source = input;
  | 	}
  | 
  | 	public void cancel() {
  | 
  | 	}
  | ...
  | }

the reference pointing to "input" should be assigned to "source":
source = input;

Is that clearly? 
(seems like i didn't listen to the english teacher enough.. ;-) )


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