PrimitivePair.\* : pair(s) based directly on primitive types. Hail generics.

git-svn-id: file:///humgen/gsa-scr1/gsa-engineering/svn_contents/trunk@148 348d0f76-0448-11de-a6fe-93d51630548a

core/java/src/org/broadinstitute/sting/utils/PrimitivePair.java

@@ -0,0 +1,33 @@
+package org.broadinstitute.sting.utils;
+
+
+/** This class is used to group together multiple Pair classes for
+ *  primitive types (thanks to generics shortcomings, these implementations
+ *  are more efficient then generic ones). This class contains no methods and
+ *  no fields, but only declarations of inner classes.
+ */
+ 
+public class PrimitivePair {
+
+   /** Pair of two integers */
+  public static class Int {
+    // declare public, STL-style for easier and more efficient access:
+    public int first; 
+    public int second;
+
+    public Int(int x, int y) { first = x; second = y; }
+    public Int() { first = second = 0; }
+
+    public void set(int x, int y) { first = x; second = y; }
+
+    /** Java-style getter; note that we currently allow direct access to 
+        the member field.
+    */
+    public int getFirst() { return first; }
+
+    /** Java-style getter; note that we currently allow direct access to 
+        the member field.
+    */
+    public int getSecond() { return second; }
+  }
+}