Fix rendering of default-context nodes with no named prefix.

diff --git a/src/org/z3950/zing/cql/CQLPrefixNode.java b/src/org/z3950/zing/cql/CQLPrefixNode.java
index f5996ec..a152fcc 100644 (file)
--- a/src/org/z3950/zing/cql/CQLPrefixNode.java
+++ b/src/org/z3950/zing/cql/CQLPrefixNode.java
@@ -1,4 +1,4 @@
-// $Id: CQLPrefixNode.java,v 1.6 2007-06-06 12:22:01 mike Exp $
+// $Id: CQLPrefixNode.java,v 1.7 2007-06-26 16:36:50 mike Exp $
 
 package org.z3950.zing.cql;
 import java.lang.String;
@@ -9,7 +9,7 @@ import java.util.Vector;
 /**
  * Represents a prefix node in a CQL parse-tree.
  *
- * @version    $Id: CQLPrefixNode.java,v 1.6 2007-06-06 12:22:01 mike Exp $
+ * @version    $Id: CQLPrefixNode.java,v 1.7 2007-06-26 16:36:50 mike Exp $
  */
 public class CQLPrefixNode extends CQLNode {
     /**
@@ -49,9 +49,14 @@ public class CQLPrefixNode extends CQLNode {
     }
 
     public String toCQL() {
-       // ### We don't always need parens around the operand
-       return ">" + prefix.name + "=\"" + prefix.identifier + "\" " +
-           "(" + subtree.toCQL() + ")";
+       // ### We don't always need parens around the subtree
+       if (prefix.name == null) {
+           return ">\"" + prefix.identifier + "\" " +
+               "(" + subtree.toCQL() + ")";
+       } else {
+           return ">" + prefix.name + "=\"" + prefix.identifier + "\" " +
+               "(" + subtree.toCQL() + ")";
+       }
     }
 
     public String toPQF(Properties config) throws PQFTranslationException {