i am trying to develop and understand communication in between classes and jsf tags. I figured out that jsf tags use classes directly without making any instance while when communication in between beans is required, an instance of the class is must to be built. In a dare need of dynamic listing and then copying selected values to different beans, i tried to build a custom tag for dynamic list but stuck at the point when selected value is required to be copied to the bean needing to hold the value other the bean used for building the list.
Following is the minimal reproducible example
pinnacleTags.taglib.xml
<?xml version="1.0" encoding="UTF-8"?>
<facelet-taglib>
<namespace>pinnacleTags/facelets</namespace>
<tag>
<tag-name>PinnacleCombo</tag-name>
<source>pinnacleCombo.xhtml</source>
<attribute>
<name>actionListenerBeanMethod</name>
</attribute>
</tag>
</facelet-taglib>
the List Tag
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:ui="http://xmlns.jcp.org/jsf/facelets"
xmlns:p="http://primefaces.org/ui"
xmlns:o="http://omnifaces.org/ui"
xmlns:f="http://xmlns.jcp.org/jsf/core">
<h:head>
</h:head>
<h:body>
<ui:composition>
<o:methodParam name="method" value="#{actionListenerBeanMethod}" />
<p:dialog id="dlgTBL" modal="true" showEffect="bounce" widgetVar="dlg" resizable="false">
<p:dataTable var="result" id="tbl" widgetVar="dtlTBL"
value="#{liveRangeService.tableData}"
filteredValue="#{liveRangeService.filteredData}"
paginator="false"
scrollable="true" rowIndexVar="rowindex" scrollHeight="500"
scrollRows="50" liveScroll="true"
filterDelay="1100"
>
<p:ajax event="rowSelect" listener="#{method}" />
<f:facet name="header">
<p:outputPanel layout="inline" styleClass="tabSpacer">
<h:outputText value="Global Filter:" />
<p:inputText id="globalFilter" onkeyup="PF('dtlTBL').filter()" style="width:150px;margin-left:10px;"/>
</p:outputPanel>
</f:facet>
<p:column width="50">
<f:facet name="header">
<h:outputText value="Sr." />
</f:facet>
<p:commandButton value="#{rowindex}" style="width: 49px" action="#{method}"/>
</p:column>
<p:columns value="#{liveRangeService.tableHeaderNames}"
var="mycolHeader"
width="#{colIndex==0?'10%':colIndex==1?'70%':colIndex==2?'10%':colIndex==3?'10%':'0'}"
columnIndexVar="colIndex"
sortBy="#{result[mycolHeader]}"
filterBy="#{result[mycolHeader]}"
filterMatchMode="contains"
>
<f:facet name="header">
<h:outputText value="#{mycolHeader}" />
</f:facet>
<h:outputText value="#{result[mycolHeader]}" />
<br />
</p:columns>
</p:dataTable>
</p:dialog>
</ui:composition>
</h:body>
</html>
Dynamic List Bean
package classes;
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
import java.io.Serializable;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.RequestScoped;
import javax.faces.bean.ViewScoped;
import org.primefaces.PrimeFaces;
@ManagedBean(name="liveRangeService", eager = true)
@RequestScoped
public class LiveRangeService implements Serializable {
private static List< Map<String, String> > tableData;
public static List< Map<String, String> > filteredData;
private static List<String> tableHeaderNames;
private String tableColWidths;
public List<Map<String, String>> getTableData() {
return tableData;
}
public List<String> getTableHeaderNames() {
return tableHeaderNames;
}
public LiveRangeService() {
}
public static void LiveRangeServicesss(int noOfRows) {
tableData = new ArrayList< Map<String, String> >();
filteredData = new ArrayList< Map<String, String> >();
tableHeaderNames = new ArrayList<String>();
try {
tableData.clear();
tableHeaderNames.clear();
filteredData.clear();
} catch (Exception e) {
System.out.println("error:!" + e.getMessage());
}
tableHeaderNames.add("ID");
tableHeaderNames.add("Title");
tableHeaderNames.add("Opn_Amt");
tableHeaderNames.add("Smr_Amt");
for (int i = 0; i < noOfRows; i++) {
Map<String, String> playlist = new HashMap<String, String>();
playlist.put("ID", "101000" + i);
playlist.put("Title", "Share Capital - Mr. " + i);
playlist.put("Opn_Amt", "0");
playlist.put("Smr_Amt", "0");
tableData.add(playlist);
}
filteredData=tableData;
System.out.println("Filled " + filteredData.size() + ", " + noOfRows);
String dlgTBL="form:dlgTBL";
String dlg="PF('dlg').show();";
PrimeFaces.current().ajax().update(dlgTBL);
PrimeFaces.current().executeScript(dlg);
}
public String getTableColWidths() {
return tableColWidths;
}
public void setTableColWidths(String tableColWidths) {
this.tableColWidths = tableColWidths;
}
public List<Map<String, String>> getFilteredData() {
return filteredData;
}
public void setFilteredData(List<Map<String, String>> filteredData) {
this.filteredData = filteredData;
}
}
test Bean
package classes;
import java.io.Serializable;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
import org.primefaces.PrimeFaces;
import org.apache.commons.beanutils.PropertyUtils;
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
/**
*
* @author Administrator
*/
@ManagedBean(name="test")
@SessionScoped
public class Test implements Serializable {
public String id;
public String title;
public Test() {
id="1";
title="Testing";
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public void onRowSelect(int row) {
try {
System.out.println("Start:");
String i="ID";
String t="Title";
String ci="id";
String ct="title";
this.getClass().getDeclaredField(ci).set(this, LiveRangeService.filteredData.get(row).get(i));
this.getClass().getDeclaredField(ct).set(this, LiveRangeService.filteredData.get(row).get(t));
PrimeFaces.current().ajax().update("form:inp");
PrimeFaces.current().ajax().update("form:inp1");
PrimeFaces.current().executeScript("PF('dlg').hide();");
System.out.println("End:");
} catch (Exception e) {
System.out.println("Error! " + e.getMessage() );
}
}
}
