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-rw-r--r--src/jrummikub/ai/fdsolver/constraint/FilterConstraint.java2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/jrummikub/ai/fdsolver/constraint/FilterConstraint.java b/src/jrummikub/ai/fdsolver/constraint/FilterConstraint.java
index e676882..d01a109 100644
--- a/src/jrummikub/ai/fdsolver/constraint/FilterConstraint.java
+++ b/src/jrummikub/ai/fdsolver/constraint/FilterConstraint.java
@@ -12,7 +12,7 @@ import jrummikub.ai.fdsolver.Propagator;
import jrummikub.ai.fdsolver.Satisfiability;
import jrummikub.ai.fdsolver.Var;
-public class FilterConstraint<T> implements Constraint {
+public class FilterConstraint<T> extends Constraint {
private Var<T> var;
private Propagator trueProp, falseProp;
private Filter<T> filter;