move all comparators to a new package

extract interface and common implementation details of sorting

1 files changed, 26 insertions, 0 deletions

diff --git a/src/cgeo/geocaching/sorting/GeocodeComparator.java b/src/cgeo/geocaching/sorting/GeocodeComparator.java
new file mode 100644
index 0000000..dd16f08
--- /dev/null
+++ b/src/cgeo/geocaching/sorting/GeocodeComparator.java
@@ -0,0 +1,26 @@
+package cgeo.geocaching.sorting;
+
+import cgeo.geocaching.cgCache;
+
+/**
+ * sorts caches by GC code, therefore effectively sorting by cache age
+ *
+ */
+public class GeocodeComparator extends AbstractCacheComparator {
+
+	@Override
+	protected boolean canCompare(cgCache cache1, cgCache cache2) {
+		return cache1.geocode != null && cache1.geocode.length() > 0
+				&& cache2.geocode != null && cache2.geocode.length() > 0;
+	}
+
+	@Override
+	protected int compareCaches(cgCache cache1, cgCache cache2) {
+		if (cache1.geocode.length() > cache2.geocode.length()) {
+			return 1;
+		} else if (cache2.geocode.length() > cache1.geocode.length()) {
+			return -1;
+		}
+		return cache1.geocode.compareToIgnoreCase(cache2.geocode);
+	}
+}