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//XHTML Page
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:h="http://java.sun.com/jsf/html"
      xmlns:f="http://java.sun.com/jsf/core"
      xmlns:ui="http://java.sun.com/jsf/facelets">
    <ui:composition template="/templates/masterLayout.xhtml">
        <ui:define name="content">
            <f:metadata>
                <f:viewParam name="lineid" value="#{lineViewBean.lineid}" required="true" requiredMessage="#{msgs.lblNoLineInfo}">
                    <f:validateLongRange minimum="1"/>
                </f:viewParam>
                <f:event type="preRenderView" listener="#{lineViewBean.loadLine}"/>
            </f:metadata>

            <h3><h:outputText id="headerText" value="#{lineViewBean.line.name} Details"/></h3>

            <h:form id="lineDetails">
                <h:messages id="msgs"/>
                <h:inputText id="lineName" value="#{lineViewBean.line.name}">
                    <f:ajax event="keyup" listener="updateListener" render="@this msgs" />
                </h:inputText>
                <h:message for="lineName" />
                <h:commandButton id="btnSave" action="#{lineViewBean.update}" value="#{msgs.btnSave}"/>
                <h:commandButton action="#{lineViewBean.delete}" value="#{msgs.btnDelete}" />
            </h:form>
                <h:link outcome="listLines" value="#{msgs.lnkBrowseCatalog}" />
        </ui:define>
    </ui:composition>
</html>


//backingbean
package com.tf.web;

import com.tf.facade.LineMaintainFacade;
import com.tf.model.Line;
import java.io.Serializable;
import javax.ejb.EJB;
import javax.faces.bean.ViewScoped;
import javax.faces.bean.ManagedBean;

@ManagedBean(name = "lineViewBean")
@ViewScoped
public class LineViewViewBackingBean implements Serializable {

    @EJB
    private LineMaintainFacade lineService;

    private Line line;
    private Long lineId;
    
    public Long getLineid() {
        return lineId;
    }

    public void setLineid(Long lineid) {
        this.lineId = lineid;
    }

    public void loadLine() {
        if (line == null) {
            line = lineService.getLine(lineId);
        }
    }

    public Line getLine() {
        return line;
    }
    
    public void setLine(Line line) {
        this.line = line;
    }

    public void updateListener (AjaxBehaviorEvent event){
        line = lineService.update(line);
    }

    public String update() {
        line = lineService.update(line);
        return "update";
    }
}

1	-
1	+	//XHTML Page
2		<?xml version='1.0' encoding='UTF-8' ?>
3		<!DOCTYPE html>
4		<html xmlns="http://www.w3.org/1999/xhtml"
5		xmlns:h="http://java.sun.com/jsf/html"
6		xmlns:f="http://java.sun.com/jsf/core"
7		xmlns:ui="http://java.sun.com/jsf/facelets">
8		<ui:composition template="/templates/masterLayout.xhtml">
9		<ui:define name="content">
10		<f:metadata>
11		<f:viewParam name="lineid" value="#{lineViewBean.lineid}" required="true" requiredMessage="#{msgs.lblNoLineInfo}">
12		<f:validateLongRange minimum="1"/>
13		</f:viewParam>
14		<f:event type="preRenderView" listener="#{lineViewBean.loadLine}"/>
15		</f:metadata>
16
17		<h3><h:outputText id="headerText" value="#{lineViewBean.line.name} Details"/></h3>
18
19		<h:form id="lineDetails">
20		<h:messages id="msgs"/>
21		<h:inputText id="lineName" value="#{lineViewBean.line.name}">
22		<f:ajax event="keyup" listener="updateListener" render="@this msgs" />
23		</h:inputText>
24		<h:message for="lineName" />
25		<h:commandButton id="btnSave" action="#{lineViewBean.update}" value="#{msgs.btnSave}"/>
26		<h:commandButton action="#{lineViewBean.delete}" value="#{msgs.btnDelete}" />
27		</h:form>
28		<h:link outcome="listLines" value="#{msgs.lnkBrowseCatalog}" />
29		</ui:define>
30		</ui:composition>
31		</html>
32
33
34		//backingbean
35		package com.tf.web;
36
37		import com.tf.facade.LineMaintainFacade;
38		import com.tf.model.Line;
39		import java.io.Serializable;
40		import javax.ejb.EJB;
41		import javax.faces.bean.ViewScoped;
42		import javax.faces.bean.ManagedBean;
43
44		@ManagedBean(name = "lineViewBean")
45		@ViewScoped
46		public class LineViewViewBackingBean implements Serializable {
47
48		@EJB
49		private LineMaintainFacade lineService;
50
51		private Line line;
52		private Long lineId;
53
54		public Long getLineid() {
55		return lineId;
56		}
57
58		public void setLineid(Long lineid) {
59		this.lineId = lineid;
60		}
61
62		public void loadLine() {
63		if (line == null) {
64		line = lineService.getLine(lineId);
65		}
66		}
67
68		public Line getLine() {
69		return line;
70		}
71
72		public void setLine(Line line) {
73		this.line = line;
74		}
75
76		public void updateListener (AjaxBehaviorEvent event){
77		line = lineService.update(line);
78		}
79
80		public String update() {
81		line = lineService.update(line);
82		return "update";
83		}
84		}