added updateListItems support

sharepoint/api/src/main/java/de/muehlencord/shared/sharepoint/api/SPHelper.java

@@ -0,0 +1,33 @@
+package de.muehlencord.shared.sharepoint.api;
+
+import java.text.SimpleDateFormat;
+import java.time.format.DateTimeFormatter;
+import java.util.Date;
+
+/**
+ *
+ * @author joern.muehlencord
+ */
+public class SPHelper {
+
+    private static final SimpleDateFormat dateTimeFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ");
+    private static final SimpleDateFormat dateOnlyFormat = new SimpleDateFormat("yyyy-MM-dd");
+
+    /* -- Format for Date Only Field -- */
+    public static String toSPDate(Date d) {
+        if (d == null) {
+            return "";
+        }
+        return dateOnlyFormat.format(d);
+    }
+
+    /* -- Format for DateTime Field -- */
+    private static String toSPDateAndTime(Date d) {
+        if (d == null) {
+            return "";
+        }
+
+        return dateTimeFormat.format(d);
+    }
+
+}

sharepoint/api/src/main/java/de/muehlencord/shared/sharepoint/api/SPJaxbObject.java

@@ -10,15 +10,11 @@ import javax.xml.bind.JAXBContext;
 import javax.xml.bind.JAXBException;
 import javax.xml.bind.Marshaller;
 import javax.xml.bind.Unmarshaller;
-import javax.xml.parsers.DocumentBuilder;
-import javax.xml.parsers.DocumentBuilderFactory;
 import javax.xml.parsers.ParserConfigurationException;
 import javax.xml.transform.stream.StreamSource;
 import javax.xml.validation.Schema;
 import javax.xml.validation.SchemaFactory;
-import org.w3c.dom.Document;
 import org.w3c.dom.Node;
-import org.xml.sax.InputSource;
 import org.xml.sax.SAXException;
 
 /**

sharepoint/api/src/main/java/de/muehlencord/shared/sharepoint/api/lists/SPList.java

@@ -160,6 +160,19 @@ public class SPList extends SPJaxbObject<List> {
 
     }
 
+    public void updateListItem(Map<String, String> data) throws JAXBException, ParserConfigurationException, NoSuchAlgorithmException,
+        SAXException, KeyManagementException, IOException {
+        java.util.List<Map<String, String>> dataList = new ArrayList<>();
+        dataList.add(data);
+        updateListItems(dataList);
+    }
+
+    public void updateListItems(java.util.List<Map<String, String>> dataList) throws JAXBException, ParserConfigurationException, NoSuchAlgorithmException,
+        SAXException, KeyManagementException, IOException {
+        SPBatch batch = createBatch(dataList, MethodType.UPDATE);
+        executeUpdate(batch);
+    }
+
     public void removeListItem(Map<String, String> dataMap) throws JAXBException, ParserConfigurationException, NoSuchAlgorithmException,
         SAXException, KeyManagementException, IOException {
         java.util.List<Map<String, String>> dataList = new ArrayList<>();

sharepoint/api/src/main/java/de/muehlencord/shared/sharepoint/api/lists/SPLists.java

@@ -44,7 +44,7 @@ public class SPLists extends SPJaxbObject<de.muehlencord.shared.sharepoint.api.l
         if (this.getValue().lists == null) {
             getValueFromSharepoint();
         }
-        List list = getListByTitle(listName);
+        List list = getListByTitle(listName); // TODO throw exception if not found
         SPList returnList = new SPList(getContext(), listName);
         returnList.setValue(list);