Add classes for visitor traversal

[cql-java-moved-to-github.git] / src / main / java / org / z3950 / zing / cql / CQLProxNode.java

diff --git a/src/main/java/org/z3950/zing/cql/CQLProxNode.java b/src/main/java/org/z3950/zing/cql/CQLProxNode.java
index 35f1781..c33eade 100644 (file)
--- a/src/main/java/org/z3950/zing/cql/CQLProxNode.java
+++ b/src/main/java/org/z3950/zing/cql/CQLProxNode.java
@@ -18,6 +18,11 @@ public class CQLProxNode extends CQLBooleanNode {
        super(left, right, ms);
     }
 
+    @Override
+    public void traverse(CQLNodeVisitor visitor) {
+      visitor.onProxNode(this);
+    }    
+
     /*
      * proximity ::= exclusion distance ordered relation which-code unit-code.
      * exclusion ::= '1' | '0' | 'void'.