Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

DataTable: filtering breaks row-state / action-listener call with current var

See original GitHub issue

Actual:

filter by “2”
click button: “doSomething: 0” is printed

Actual:

filter by “2”
click button: “doSomething: 2” should be printed

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:ui="http://xmlns.jcp.org/jsf/facelets"
      xmlns:f="http://xmlns.jcp.org/jsf/core"
      xmlns:p="http://primefaces.org/ui"
      xmlns:h="http://xmlns.jcp.org/jsf/html">

    <h:head>
        <title>PrimeFaces Test</title>
    </h:head>
    <h:body>

        <h:form id="frmTest">
            a#{testView.entries}a
            <p:dataTable value="#{testView.entries}" filteredValue="#{testView.filteredEntries}" var="entry">
                <p:column field="id" />
                <p:column field="name1" />
                <p:column field="name2" />
                <p:column>
                    <p:commandButton process="@this" update="@none" actionListener="#{testView.doSomething(entry)}" value="Action" />
                </p:column>
            </p:dataTable>
            
        </h:form>

    </h:body>
</html>

package org.primefaces.test;

import java.io.Serializable;
import java.util.Arrays;
import java.util.List;
import java.util.Objects;
import javax.faces.bean.ViewScoped;
import javax.inject.Named;
import lombok.AllArgsConstructor;

import lombok.Data;
import lombok.NoArgsConstructor;

@Named
@ViewScoped
public class TestView implements Serializable {
    
    private List<Entry> filteredEntries;
    
    public List<Entry> getEntries() {
        return Arrays.asList(new Entry(1, "1", "1"), new Entry(2, "2", "2"), new Entry(3, "3", "3"));
    }
    
    public List<Entry> getFilteredEntries() {
        return filteredEntries;
    }

    public void setFilteredEntries(List<Entry> filteredEntries) {
        this.filteredEntries = filteredEntries;
    }

    public void doSomething(Entry entry) {
        System.err.println("doSomething: " + entry.getId());
    }

    @Data
    @NoArgsConstructor
    @AllArgsConstructor
    public static class Entry {
        private int id;
        private String name1;
        private String name2;

        @Override
        public int hashCode() {
            int hash = 7;
            hash = 53 * hash + Objects.hashCode(this.id);
            return hash;
        }

        @Override
        public boolean equals(Object obj) {
            if (this == obj) {
                return true;
            }
            if (obj == null) {
                return false;
            }
            if (getClass() != obj.getClass()) {
                return false;
            }
            final Entry other = (Entry) obj;
            if (!Objects.equals(this.id, other.id)) {
                return false;
            }
            return true;
        }
        
        
    }
}