preparing notes module (backend)

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

core/src/main/java/de/srsoftware/umbrella/core/Constants.java

@@ -19,9 +19,12 @@ public class Constants {
 	public static final String COMPANY = "company";
 	public static final String COMPANY_ID = "company_id";
 	public static final String CONTENT_TYPE     = "Content-Type";
+	public static final String CUSTOMER_NUMBER_PREFIX = "customer_number_prefix";
 
 	public static final String DATA = "data";
 	public static final String DATE = "date";
+	public static final String DECIMALS = "decimals";
+	public static final String DECIMAL_SEPARATOR = "decimal_separator";
 	public static final String DEFAULT_LANGUAGE = "en";
 	public static final String DEFAULT_THEME = "winter";
 	public static final String DELETED = "deleted";
@@ -33,7 +36,7 @@ public class Constants {
 
 	public static final String EMAIL = "email";
 	public static final String END_TIME = "end_time";
-
+	public static final String ENTITY_ID = "entity_id";
 	public static final String ERROR_FAILED_CREATE_TABLE = "Failed to create \"{0}\" table!";
 	public static final String ERROR_INVALID_FIELD = "Expected {0} to be {1}!";
 	public static final String ERROR_MISSING_CONFIG = "Config is missing value for {0}!";
@@ -41,19 +44,30 @@ public class Constants {
 	public static final String ERROR_READ_TABLE = "Failed to read {0} from {1} table";
 	public static final String EST_TIME = "est_time";
 	public static final String ESTIMATED_TIME = "estimated_time";
-
 	public static final String EXPIRATION = "expiration";
+
 	public static final String FALLBACK_LANG = "de";
+	public static final String FIELD_BANK_ACCOUNT = "bank_account";
+	public static final String FIELD_COURT = "court";
+	public static final String FIELD_CURRENCY = "currency";
+	public static final String FIELD_PHONE = "phone";
+	public static final String FIELD_TAX_NUMBER = "tax_number";
+
 	public static final String GET	          = "GET";
 
 	public static final String ID = "id";
+
 	public static final String JSONARRAY = "json array";
 	public static final String JSONOBJECT = "json object";
 	public static final String KEY = "key";
+
 	public static final String LANGUAGE = "language";
+	public static final String LAST_CUSTOMER_NUMBER = "last_customer_number";
 	public static final String LOGIN = "login";
+
 	public static final String MEMBERS = "members";
 	public static final String MESSAGES = "messages";
+	public static final String MODULE = "module";
 
 	public static final String NAME = "name";
 	public static final String NEW_MEMBER = "new_member";
@@ -90,8 +104,10 @@ public class Constants {
 	public static final String TAGS = "tags";
 	public static final String TEMPLATE = "template";
 	public static final String TEXT = "text";
+	public static final String THOUSANDS_SEPARATOR = "thousands_separator";
 	public static final String THEME = "theme";
 	public static final String TITLE = "title";
+	public static final String TIMESTAMP = "timestamp";
 	public static final String TOKEN = "token";
 
 	public static final String UMBRELLA = "Umbrella";
@@ -100,16 +116,7 @@ public class Constants {
 	public static final String USER_ID = "user_id";
 	public static final String USER_LIST = "user_list";
 	public static final String UTF8 = UTF_8.displayName();
+
 	public static final String VALUE = "value";
 
-	public static final String FIELD_COURT = "court";
-	public static final String FIELD_TAX_NUMBER = "tax_number";
-	public static final String FIELD_PHONE = "phone";
-	public static final String DECIMAL_SEPARATOR = "decimal_separator";
-	public static final String THOUSANDS_SEPARATOR = "thousands_separator";
-	public static final String LAST_CUSTOMER_NUMBER = "last_customer_number";
-	public static final String DECIMALS = "decimals";
-	public static final String CUSTOMER_NUMBER_PREFIX = "customer_number_prefix";
-	public static final String FIELD_CURRENCY = "currency";
-	public static final String FIELD_BANK_ACCOUNT = "bank_account";
 }

core/src/main/java/de/srsoftware/umbrella/core/api/NoteService.java

@@ -0,0 +1,16 @@
+/* © SRSoftware 2025 */
+package de.srsoftware.umbrella.core.api;
+
+import de.srsoftware.umbrella.core.exceptions.UmbrellaException;
+import de.srsoftware.umbrella.core.model.Note;
+import de.srsoftware.umbrella.core.model.UmbrellaUser;
+
+import java.util.Collection;
+
+public interface NoteService {
+	void deleteEntity(String task, long taskId);
+
+	Collection<Note> getNotes(String module, long entityId) throws UmbrellaException;
+
+	Note save(Note note);
+}

core/src/main/java/de/srsoftware/umbrella/core/model/Note.java

@@ -0,0 +1,38 @@
+/* © SRSoftware 2025 */
+package de.srsoftware.umbrella.core.model;
+
+import de.srsoftware.tools.Mappable;
+
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.time.LocalDateTime;
+import java.util.Map;
+
+import static de.srsoftware.umbrella.core.Constants.*;
+import static de.srsoftware.umbrella.core.Util.markdown;
+
+public record Note(long id, String module, long entityId, long authorId, String text, LocalDateTime timestamp) implements Mappable {
+	public static Note of(ResultSet rs) throws SQLException {
+		return new Note(
+				rs.getLong(ID),
+				rs.getString(MODULE),
+				rs.getLong(ENTITY_ID),
+				rs.getLong(USER_ID),
+				rs.getString(TEXT),
+				LocalDateTime.parse(rs.getString(TIMESTAMP))
+		);
+	}
+
+	@Override
+	public Map<String, Object> toMap() {
+		return Map.of(
+				ID,id,
+				MODULE,module,
+				ENTITY_ID,entityId,
+				USER_ID,authorId,
+				TEXT,text,
+				RENDERED,markdown(text),
+				TIMESTAMP,timestamp
+		);
+	}
+}