checkpoint

[sbp.git] / src / edu / berkeley / sbp / Sequence.java

diff --git a/src/edu/berkeley/sbp/Sequence.java b/src/edu/berkeley/sbp/Sequence.java
index 31d8f29..28f6564 100644 (file)
--- a/src/edu/berkeley/sbp/Sequence.java
+++ b/src/edu/berkeley/sbp/Sequence.java
@@ -56,6 +56,9 @@ public abstract class Sequence extends Element implements Iterable<Element> {
     public Sequence and(Sequence s) { Sequence ret = dup(); ret.needs.add(s); s.needed.add(ret); return ret; }
     public Sequence not(Sequence s) { Sequence ret = dup(); ret.hates.add(s); s.hated.add(ret); return ret; }
 
+    public Iterable<Sequence> needs() { return needs; }
+    public Iterable<Sequence> hates() { return hates; }
+
     protected final Element[] elements;
 
     final HashSet<Sequence> needed = new HashSet<Sequence>();