X-Git-Url: http://jsfdemo.indexdata.com/?a=blobdiff_plain;f=src%2Forg%2Fz3950%2Fzing%2Fcql%2FCQLPrefixNode.java;h=aae60388b9c6a6a1207649b070db11b8ea27a2c8;hb=f57d48d060411f662eea823b97cc45038bda0def;hp=3e2ad87992509080a9d8e10e39253b9a2de17169;hpb=e57e14d4481428581265449445514fb426fbea45;p=cql-java-moved-to-github.git

diff --git a/src/org/z3950/zing/cql/CQLPrefixNode.java b/src/org/z3950/zing/cql/CQLPrefixNode.java
index 3e2ad87..aae6038 100644
--- a/src/org/z3950/zing/cql/CQLPrefixNode.java
+++ b/src/org/z3950/zing/cql/CQLPrefixNode.java
@@ -1,4 +1,4 @@
-// $Id: CQLPrefixNode.java,v 1.5 2002-12-11 17:14:20 mike Exp $
+// $Id: CQLPrefixNode.java,v 1.9 2007-07-03 13:40:41 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 1.5 2002-12-11 17:14:20 mike Exp $
+ * @version	$Id: CQLPrefixNode.java,v 1.9 2007-07-03 13:40:41 mike Exp $
  */
 public class CQLPrefixNode extends CQLNode {
     /**
@@ -25,7 +25,7 @@ public class CQLPrefixNode extends CQLNode {
 
     /**
      * Creates a new CQLPrefixNode inducing a mapping from the
-     * specified qualifier-set name to the specified identifier across
+     * specified index-set name to the specified identifier across
      * the specified subtree.
      */
     public CQLPrefixNode(String name, String identifier, CQLNode subtree) {
@@ -33,30 +33,32 @@ public class CQLPrefixNode extends CQLNode {
 	this.subtree = subtree;
     }
 
-    public String toXCQL(int level, Vector prefixes) {
-//	String maybeName = "";
-//	if (prefix.name != null)
-//	    maybeName = indent(level+1) + "<name>" + prefix.name + "</name>\n";
-//
-//	return (indent(level) + "<prefix>\n" + maybeName +
-//		indent(level+1) +
-//		    "<identifier>" + prefix.identifier + "</identifier>\n" +
-//		subtree.toXCQL(level+1, prefixes) +
-//		indent(level) + "</prefix>\n");
-	Vector tmp = new Vector(prefixes);
+    public String toXCQL(int level, Vector<CQLPrefix> prefixes,
+			 Vector<ModifierSet> sortkeys) {
+	if (sortkeys != null)
+	    throw new Error("CQLPrefixNode.toXCQL() called with sortkeys");
+
+	Vector<CQLPrefix> tmp = (prefixes == null ?
+				 new Vector<CQLPrefix>() :
+				 new Vector<CQLPrefix>(prefixes));
 	tmp.add(prefix);
 	return subtree.toXCQL(level, tmp);
     }
 
     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 {
 	// Prefixes and their identifiers don't actually play any role
-	// in PQF translation, since the meanings of the qualifiers,
+	// in PQF translation, since the meanings of the indexes,
 	// including their prefixes if any, are instead wired into
 	// `config'.
 	return subtree.toPQF(config);