1 $Id: Changes,v 1.46 2008-05-28 10:03:53 mike Exp $
3 Revision history for the CQL-Java package.
4 See the bottom of this file for a list of things still to do.
6 The work for releases 1.0, 1.2 and 1.2.1 was sponsored by the National
7 Library of Australia, whose help we gratefully acknowledge.
10 - API changes: more information hiding, introduce getters
11 - make some contants read-only
14 1.7 Tue Jul 27 17:35:25 BST 2010
15 - Patch from Ralph LeVan to recognise
16 "qualifier.dc.creator"-like properties as well as
17 "index.dc.creator" -- backwards compatible with version
18 prior to 1.0 as well as those subsequent.
19 - Reinstate the "exact" relation even when v1.2 is in effect
20 (the default), despite its removal from v1.2 of CQL. In
21 practice, it seems to be in fairly widespread use, and
22 little real purpose is served in removing it.
24 1.6 Thu Jun 17 10:56:24 BST 2010
25 - Fix the bug where "9x" is lexed as two tokens, a TT_NUMBER
26 followed by a TT_WORD, making unquoted search-terms such as
27 2010-06-17 syntax errors. Thanks to Erik Hetzner
28 <erik.hetzner@ucop.edu> for the patch.
30 1.5 Tue May 25 16:44:35 CEST 2010
31 - Fix recognition of word-relations to correctly match what is
32 specified in the CQL v1.1 and v1.2 documents. In
33 particular, "encloses" and "within" are recognised, so that
34 Masterkey's use of "encloses" for IP range authentication
36 - Update regression tests accordingly.
37 - Extend test/random/ to emit summary line of successful
40 1.4 Thu May 20 00:38:40 BST 2010
41 - Add support for interpreting sequences of non-keywords as a
42 single multi-word term rather than a broken INDEX RELATION
43 TERM triplet. This means that "oxford street" is a valid
44 query rather than a syntax error, and "tottenham court road"
45 is what it looks like rather than a search for the word
46 "court" related by the relation "court" to the index
47 "tottenham". Note that the word-formed relations "any",
48 "all", "exact" and (for CQL v1.2) "scr" are still treated
49 specially, as are profiled relations in context sets, of the
52 1.3 Wed May 28 11:02:00 BST 2008
53 - Add getSortIndexes() to CQLSortNode, as suggested by Marcel
54 Versteeg <Marcel.Versteeg@KB.nl>
56 1.2.1 Mon Aug 6 16:54:54 BST 2007
57 - Contructors for the CQLParser class are made public (as they
58 should have been all along).
60 1.2 Tue Jul 3 17:53:28 BST 2007
61 - Support for CQL version 1.2 as described at
62 http://www.loc.gov/standards/sru/next-version.html
63 The most significant part of the v1.2 change is support for
64 sorting, but as of this writing (29th June) the official SRU
65 maintenance agency web site at
66 http://www.loc.gov/standards/sru/index.html
67 does not include any specification for CQL sorting.
68 Therefore the original proposal at
69 http://zing.z3950.org/cql/sorting.html
70 is still considered canonical.
72 1.0 Fri Jun 29 14:10:28 BST 2007
73 - Support for version 1.1 as described at
74 http://www.loc.gov/standards/sru/specs/cql.html
75 Since this is a significant leap forward, the version
76 numbering increases to the next major version.
77 - "Qualifiers" renamed as "indexes" throughout, to match what
78 is now universal CQL terminology.
80 PLEASE NOTE THE FOLLOWING INCOMPATIBLE API CHANGES
81 - The class UnknownQualifierException is replaced by
82 UnknownIndexException.
83 - The CQLTermNode method getQualifier() is replaced by
86 0.7 Thu Sep 4 22:51:11 2003
87 - Support for profiled relations and relation modifiers:
88 recognise any non-key word as a relation or modifier,
89 rejecting those that are not of the form <prefix>.<name>
90 since these must be explicitly tied to a "context" (what
91 used to be called a qualifier-set or index-set).
93 0.6 Tue Jul 29 23:33:56 2003
94 - Include Ralph's fix for CQLTermNode::toType1BER() to prevent
95 it surrounding multi-word terms in quotes when encoded into
98 0.5 Wed Feb 5 15:50:57 2003
99 - Add an extra back-end method,
100 byte[] toType1BER(Properties config)
101 which generates an opaque BER-encoded PDU suitable for
102 forwarding to Z39.50 server as a pasrt of a searchRequest
103 APDU. This was contributed by Ralph Levan <levan@oclc.org>
104 - Add srw.resultSet support to the toPFQ() method.
105 - Add new resultSetName() method to CQLNode and its
106 subclasses, returning the name of the referenced result-set
107 for a node that is just a result-set reference, and null for
109 - Change regression-test rules for Adam's compiler to use his
110 new front-end cql2xcql instead of the old cqlparse3.
111 - Change the names of the anchoring properties in
112 etc/pqf.properties and the CQLTermNode code that examines
113 them, in accordance with Adam's PQF-renderer's behaviour.
114 This gives more flexibility in terms of generating
115 attributes for end-of-field anchoring. Various other minor
116 tweaks to the pqf.properties file, mostly to the comments.
117 - Change the capitalisation of the project name from
118 "cql-java" to "CQL-Java". That doesn't really make any
119 difference to anything: in particular, file-names such as
120 "cql-java.jar" remain the same.
122 0.4 Thu Nov 21 10:09:26 2002
123 - Add support for the new "phonetic" relation modifier,
124 including its mapping in "etc/pqf.properties".
125 - Make prefix-maps bind loosely, so that ``>dc=x a and b''
126 applies the dc=x binding to both the ``a'' and ``b''
128 - Change the XCQL output to include the nasty (but official)
129 <leftOperand> and <rightOperand> wrapper elements.
130 - Change the XCQL output to use the nasty (but official)
131 rendition of prefix-mapping: a <prefixes> element,
132 containing one of more <prefix>es may appear at the top
133 of either a <searchClause> or a <triple>.
134 - Include test/regression/xmlpp.pl in the distribution: this
135 may now be used for testing whether a CQL compiler produces
136 _equivalent_ XCQL to what's in the regression test, rather
137 than requiring byte-identical output.
138 - Include the reference XCQL output in the distribution, for
139 the regression test suite to run against.
140 - Change build process so that javadoc documentation is built
141 by "make" in the "docs" directory. There's now a top-level
142 makefile that builds the source, runs the test suite and
143 creates the documentation.
144 - Write javadoc comments for CQLRelation and ModifierSet.
145 - Other improvements to javadoc comments (e.g. describe the
146 `config' parameter to the toPQF() method.)
147 - Sort out the licence: I've settled on the LGPL.
148 - Remove the redundant and misleading etc/Grammar file.
149 - Fix up various Maintenance Agency web addresses that have
150 moved in the great ZING-release shake-up.
152 0.3 Fri Nov 15 12:04:04 2002
153 - Allow keywords to be used unquoted as search terms.
154 - Add support for serverChoiceRelation (scr).
155 - Add support for prefix-mapping, as in
156 >dc="http://www.loc.gov/zing/cql/dc-indexes/" dc.title=fish
158 >"http://www.loc.gov/zing/cql/dc-indexes/" dc.title=fish
159 The XCQL generated corresponds to Adam's suggested format
160 rather than Rob's, not so much because I prefer it (although
161 I do) as because it's what fell out when I just Coded What
162 Comes Natur'ly. That may need to change, depending on the
163 result of the ZNG list's deliberations.
164 - Fix the parser to normalise relation modifiers to lower case.
165 - Fix the CQLParser test harness not to emit an extraneous
166 blank line at end of XCQL output.
167 - Fix CQLNode documentation to contain a link to YAZ's
168 documentation of Prefix Query Format (PQF) rather than
169 containing a rather unhelpful chunk of BNF.
170 - Change the test/regression Makefile so that "make clean" now
171 does what "make distclean" used to do - the distinction
172 between them is pointless.
173 - Fix a few typos in the documentation.
174 - Move the README file's old "THINGS TO DO" section to the end
175 of this file, the new "Still to do" section.
177 0.2 Wed Nov 6 23:05:54 2002
178 - Fix the order of proximity parameters in accordance with the
179 updated official grammar, which now specifies proximity
180 operators of the form
181 prox/<relation>/<distance>/<unit>/<ordering>
182 as in ``foo prox/<=/3/sentence bar''.
183 - Make the necessary parts of the CQLNode class and its
184 subclasses public. This means that client code can now walk
185 through parse-trees and so implement its own back-end
186 (e.g. to build BER-friendly data structures using whatever
187 Z39.50 toolkit is preferred.)
188 - Add the toPQF(Properties p) method to CQLNode and its
189 subclasses. This produces a query in YAZ-style Prefix Query
190 Format, which can be trivially translated into a Z39.50
191 Type-1 query (see, for example, JZKit's code to do so).
192 - Add etc/pqf.properties to configure the toPQF() method.
193 - Add "-p <props-file>" option to the CQLParser test-harness,
194 indicating that the parsed tree is to be rendered to PQF.
195 - Add PQFTranslationException and its subclasses
196 UnknownQualifierException, UnknownRelationException,
197 UnknownRelationModifierException and
198 UnknownPositionException.
199 - Rename ParameterMissingException to MissingParameterException.
200 - Add javadoc comments for CQLNode and its subclasses.
202 0.1 Sun Nov 3 20:58:27 2002
203 - First public release.
208 - Test-harness option to use Type1 BER back-end.
209 - Case-insensitive matching for serverChoice and any other
210 special-case qualifiers. (Are the configured qualifiers
211 matched case-insensitively? They should be.)
212 - Prefix-aware matching for serverChoice, so that
213 >x="http://www.loc.gov/zing/srw/dc-indexes/v1.0/" x.resultSet=foo
214 does the right thing.
215 - Extend test-suite for PQF and BER renderers.
216 - Additional test-suite entries for things like
218 - Add a new configuration file that allows arbitrary new
219 relations and relation modifiers to be defined.
220 - Fix term-to-PQF translation to omit empty properties
221 (for the broken Korean server)
222 - Write "package.html" file for the javadoc documentation.
223 - Some niceties for the cql-decompiling back-end:
224 * Don't emit redundant parentheses.
225 * Don't put spaces around relations that don't need them.
226 - Many refinements to the random query generator:
227 * Generate relation modifiers
229 * Don't always generate qualifier/relation for terms
230 * Better selection of qualifier (configurable?)
231 * Better selection of terms (from a dictionary file?)
232 * Introduce wildcard characters into generated terms
233 * Generate multi-word terms
234 * Generate prefix-mappings