support view trigger producer function

chat2db-server/chat2db-server-domain/chat2db-server-domain-core/src/main/java/ai/chat2db/server/domain/core/util/H2Functions.java

@@ -0,0 +1,7 @@
+package ai.chat2db.server.domain.core.util;
+
+public class H2Functions {
+    public static String keyGeneratorFunction(String tableName) {
+        return null;
+    }
+}

chat2db-server/chat2db-server-domain/chat2db-server-domain-core/src/main/java/ai/chat2db/server/domain/core/util/H2Triggers.java

@@ -0,0 +1,36 @@
+package ai.chat2db.server.domain.core.util;
+
+import java.sql.Connection;
+import java.sql.SQLException;
+import java.util.Arrays;
+
+import org.h2.api.Trigger;
+
+public class H2Triggers implements Trigger {
+
+    @Override
+    public void init(Connection conn, String schemaName, String triggerName,
+        String tableName, boolean before, int type) throws SQLException {
+        // Initialization logic, if needed.
+    }
+
+    @Override
+    public void fire(Connection conn, Object[] oldRow, Object[] newRow)
+        throws SQLException {
+        // This method is called when the trigger is executed.
+        // In this example, let's simply print the new values when a row is inserted.
+        if (newRow != null) {
+            System.out.println("New Row Inserted: " + Arrays.toString(newRow));
+        }
+    }
+
+    @Override
+    public void close() throws SQLException {
+        // Cleanup logic, if needed.
+    }
+
+    @Override
+    public void remove() throws SQLException {
+        // Logic to execute when the trigger is dropped/removed.
+    }
+}