1 files changed, 12 insertions, 0 deletions
diff --git a/src/main/java/design/persistence/importexport/DataSource.java b/src/main/java/design/persistence/importexport/DataSource.java
new file mode 100644
index 0000000..5290e33
--- /dev/null
+++ b/src/main/java/design/persistence/importexport/DataSource.java
@@ -0,0 +1,12 @@
+package design.persistence.importexport;
+
+import com.fasterxml.jackson.databind.JsonNode;
+
+import java.io.IOException;
+
+public interface DataSource {
+
+    void importData(JsonNode tree) throws IOException;
+
+    JsonNode exportData() throws IOException;
+}
+\ No newline at end of file