-// $Id: CQLPrefixNode.java,v 1.6 2007-06-06 12:22:01 mike Exp $
+// $Id: CQLPrefixNode.java,v 1.8 2007-06-27 22:39:55 mike Exp $
package org.z3950.zing.cql;
import java.lang.String;
/**
* 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 1.8 2007-06-27 22:39:55 mike Exp $
*/
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) {
}
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);