From 28ff87a2a05cb75e24c7bef96a44d7dc1b7de1af Mon Sep 17 00:00:00 2001
From: 0qln <0qln@proton.me>
Date: Thu, 12 Feb 2026 20:55:24 +0100
Subject: [PATCH] uebung5/aufgabe7

---
 pom.xml                                       |  6 ++
 .../example/demo/beans/SelectOneMenuBean.java | 92 +++++++++++++++++++
 .../uebung5/aufgabe7/selectOneMenu.xhtml      | 34 +++++++
 3 files changed, 132 insertions(+)
 create mode 100644 src/main/java/org/example/demo/beans/SelectOneMenuBean.java
 create mode 100644 src/main/webapp/uebung5/aufgabe7/selectOneMenu.xhtml

diff --git a/pom.xml b/pom.xml
index e71f058..8db13bb 100755
--- a/pom.xml
+++ b/pom.xml
@@ -51,6 +51,12 @@
       <artifactId>lombok</artifactId>
       <version>1.18.30</version>
     </dependency>
+    <dependency>
+      <groupId>org.primefaces</groupId>
+      <artifactId>primefaces</artifactId>
+      <version>15.0.3</version>
+      <classifier>jakarta</classifier>
+    </dependency>
   </dependencies>
   <build>
     <finalName>demo</finalName>
diff --git a/src/main/java/org/example/demo/beans/SelectOneMenuBean.java b/src/main/java/org/example/demo/beans/SelectOneMenuBean.java
new file mode 100644
index 0000000..e3ce0d7
--- /dev/null
+++ b/src/main/java/org/example/demo/beans/SelectOneMenuBean.java
@@ -0,0 +1,92 @@
+package uebung;
+
+import java.io.Serializable;
+import java.util.ArrayList;
+
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.faces.component.html.HtmlSelectOneMenu;
+import jakarta.faces.event.ActionEvent;
+import jakarta.faces.model.SelectItem;
+import jakarta.inject.Named;
+
+@Named
+@SessionScoped
+public class SelectOneMenuBean implements Serializable {
+    private HtmlSelectOneMenu menu1;
+    private ArrayList<SelectItem> list1;
+    private ArrayList<SelectItem> list2;
+    private String auswahl1;
+    private String auswahl2;
+
+    public SelectOneMenuBean() {
+        menu1 = new HtmlSelectOneMenu();
+        list1 = new ArrayList<SelectItem>();
+        list1.add(new SelectItem("---"));
+        list1.add(new SelectItem("Buchstaben"));
+        list1.add(new SelectItem("Zahlen"));
+        list1.add(new SelectItem("Farben"));
+
+        list2 = new ArrayList<SelectItem>();
+        list2.add(new SelectItem("---"));
+    }
+
+    public HtmlSelectOneMenu getMenu1() {
+        return menu1;
+    }
+
+    public void setMenu1(HtmlSelectOneMenu menu1) {
+        this.menu1 = menu1;
+    }
+
+    public ArrayList<SelectItem> getList1() {
+        return list1;
+    }
+
+    public void setList1(ArrayList<SelectItem> list1) {
+        this.list1 = list1;
+    }
+
+    public ArrayList<SelectItem> getList2() {
+        return list2;
+    }
+
+    public void setList2(ArrayList<SelectItem> list2) {
+        this.list2 = list2;
+    }
+
+    public String getAuswahl2() {
+        return auswahl2;
+    }
+
+    public void setAuswahl2(String auswahl2) {
+        this.auswahl2 = auswahl2;
+    }
+
+    public void listener() {
+        auswahl1 = (String)menu1.getValue();
+        list2.clear();
+        if(auswahl1 != null) {
+            list2.add(new SelectItem("---"));
+            if(auswahl1.equalsIgnoreCase("Farben")) {
+                list2.add(new SelectItem("Rot"));
+                list2.add(new SelectItem("Grün"));
+                list2.add(new SelectItem("Blau"));
+            }
+            else if(auswahl1.equalsIgnoreCase("Buchstaben")) {
+                list2.add(new SelectItem("A"));
+                list2.add(new SelectItem("B"));
+                list2.add(new SelectItem("C"));
+            }
+            else if(auswahl1.equalsIgnoreCase("Zahlen")) {
+                list2.add(new SelectItem("1"));
+                list2.add(new SelectItem("2"));
+                list2.add(new SelectItem("3"));
+            }
+        }
+    }
+
+    public void anzeigen(ActionEvent e) {
+        System.out.println(auswahl1);
+        System.out.println(auswahl2);
+    }
+}
diff --git a/src/main/webapp/uebung5/aufgabe7/selectOneMenu.xhtml b/src/main/webapp/uebung5/aufgabe7/selectOneMenu.xhtml
new file mode 100644
index 0000000..387c478
--- /dev/null
+++ b/src/main/webapp/uebung5/aufgabe7/selectOneMenu.xhtml
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="ISO-8859-1" ?>
+<!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:ui="jakarta.faces.facelets"
+	xmlns:f="jakarta.faces.core"
+	xmlns:h="jakarta.faces.html"
+	xmlns:p="http://primefaces.org/ui">
+<h:head>
+	<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
+	<title>PrimeFaces Uebung</title>
+</h:head>
+<body>
+<f:view>
+	<h:form>
+		<h:selectOneMenu id="inhalt1" binding="#{selectOneMenuBean.menu1}">
+			<f:selectItems value="#{selectOneMenuBean.list1}" />
+			<p:ajax event="change"
+					process="inhalt1"
+					listener="#{selectOneMenuBean.listener}"
+					update="inhalt2" />
+		</h:selectOneMenu>
+		<br/>
+		<br/>
+
+		<h:selectOneMenu id="inhalt2" value="#{selectOneMenuBean.auswahl2}">
+			<f:selectItems value="#{selectOneMenuBean.list2}" />
+		</h:selectOneMenu>
+		<br/>
+		<br/>
+		<p:commandButton id="button" value="OK" actionListener="#{selectOneMenuBean.anzeigen}" />
+	</h:form>
+</f:view>
+</body>
+</html>