From c2fc0ba5995f572255e317688eb9af47a335fa85 Mon Sep 17 00:00:00 2001
From: tpylak <tpylak>
Date: Wed, 30 Jul 2008 09:33:26 +0000
Subject: [PATCH] minor: add useful method to common (for future)
SVN: 7600
---
.../cisd/common/utilities/StringUtilities.java | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/common/source/java/ch/systemsx/cisd/common/utilities/StringUtilities.java b/common/source/java/ch/systemsx/cisd/common/utilities/StringUtilities.java
index 4f6eec532b8..78f828b3535 100644
--- a/common/source/java/ch/systemsx/cisd/common/utilities/StringUtilities.java
+++ b/common/source/java/ch/systemsx/cisd/common/utilities/StringUtilities.java
@@ -207,4 +207,19 @@ public final class StringUtilities
}
return number + "th";
}
+
+ /** compares two strings which can be null. Null is smaller than not-null string. */
+ public static int compareNullable(String s1OrNull, String s2OrNull)
+ {
+ if (s1OrNull == null)
+ {
+ return s2OrNull == null ? 0 : -1;
+ } else if (s2OrNull == null)
+ {
+ return 1;
+ } else
+ {
+ return s1OrNull.compareTo(s2OrNull);
+ }
+ }
}
--
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