support for importing-exporting CityObjectRelation

.gradle/buildOutputCleanup/cache.properties

-#Fri Aug 08 19:48:11 CEST 2025
+#Wed May 13 09:11:16 CEST 2026
 gradle.version=8.5

.idea/.gitignore

+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

.idea/compiler.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <annotationProcessing>
+      <profile name="Gradle Imported" enabled="true">
+        <outputRelativeToContentRoot value="true" />
+        <processorPath useClasspath="false">
+          <entry name="$USER_HOME$/.gradle/caches/modules-2/files-2.1/org.projectlombok/lombok/1.18.24/13a394eed5c4f9efb2a6d956e2086f1d81e857d9/lombok-1.18.24.jar" />
+        </processorPath>
+        <module name="energy-ade-3-citygml4j.main" />
+      </profile>
+    </annotationProcessing>
+    <bytecodeTargetLevel target="17" />
+  </component>
+</project>
\ No newline at end of file

.idea/gradle.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
+  <component name="GradleSettings">
+    <option name="linkedExternalProjectsSettings">
+      <GradleProjectSettings>
+        <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="gradleJvm" value="#JAVA_HOME" />
+        <option name="modules">
+          <set>
+            <option value="$PROJECT_DIR$" />
+            <option value="$PROJECT_DIR$/energy-ade-samples" />
+          </set>
+        </option>
+      </GradleProjectSettings>
+    </option>
+  </component>
+</project>
\ No newline at end of file

.idea/jarRepositories.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RemoteRepositoriesConfiguration">
+    <remote-repository>
+      <option name="id" value="central" />
+      <option name="name" value="Maven Central repository" />
+      <option name="url" value="https://repo1.maven.org/maven2" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="jboss.community" />
+      <option name="name" value="JBoss Community repository" />
+      <option name="url" value="https://repository.jboss.org/nexus/content/repositories/public/" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="MavenRepo" />
+      <option name="name" value="MavenRepo" />
+      <option name="url" value="https://repo.maven.apache.org/maven2/" />
+    </remote-repository>
+  </component>
+</project>
\ No newline at end of file

.idea/misc.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="FrameworkDetectionExcludesConfiguration">
+    <file type="web" url="file://$PROJECT_DIR$" />
+  </component>
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="liberica-17" project-jdk-type="JavaSDK" />
+</project>
\ No newline at end of file

.idea/modules.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/modules/energy-ade-3-citygml4j.main.iml" filepath="$PROJECT_DIR$/.idea/modules/energy-ade-3-citygml4j.main.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file

.idea/modules/energy-ade-3-citygml4j.main.iml

+<?xml version="1.0" encoding="UTF-8"?>
+<module version="4">
+  <component name="AdditionalModuleElements">
+    <content url="file://$MODULE_DIR$/../../build/generated/sources/annotationProcessor/java/main">
+      <sourceFolder url="file://$MODULE_DIR$/../../build/generated/sources/annotationProcessor/java/main" isTestSource="false" generated="true" />
+    </content>
+  </component>
+</module>
\ No newline at end of file

.idea/vcs.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file

build.gradle

@@ -18,8 +18,8 @@ java {
 
 allprojects {
     group 'org.citygml4j.ade'
-    version 'beta7-0.3'
-    description 'Energy ADE 3 (beta 7) extension for citygml4j - release 0.3'
+    version 'beta7-0.4'
+    description 'Energy ADE 3 (beta 7) extension for citygml4j - release 0.4'
 
     ext {
         citygml4jVersion = '2.13.1'