Перенос.

src/Common/UI/Tables/MaskedIntegerValueRenderer.java

@@ -0,0 +1,18 @@
+package Common.UI.Tables;
+import javax.swing.*;
+public class MaskedIntegerValueRenderer extends RendererCell<Long> {
+    @Override
+    public Long Init(JTable table, Object value, int row, int column) {
+        return (Long) value;
+    }
+    public long getMask() {
+        return -1;
+    }
+    public String getMaskText() {
+        return " — ";
+    }
+    public void Display() {
+        if (value != null)
+            setText(value.equals((getMask())) ? getMaskText() : String.valueOf(value));
+    }
+}