1 $Id: Changes,v 1.45 2008-04-11 12:06:13 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.
7 - Add getSortIndexes() to CQLSortNode, as suggested by Marcel
8 Versteeg <Marcel.Versteeg@KB.nl>
10 The work for releases 1.0, 1.2 and 1.2.1 was sponsored by the
11 National Library of Australia, whose help we gratefully
14 1.2.1 Mon Aug 6 16:54:54 BST 2007
15 - Contructors for the CQLParser class are made public (as they
16 should have been all along).
18 1.2 Tue Jul 3 17:53:28 BST 2007
19 - Support for CQL version 1.2 as described at
20 http://www.loc.gov/standards/sru/next-version.html
21 The most significant part of the v1.2 change is support for
22 sorting, but as of this writing (29th June) the official SRU
23 maintenance agency web site at
24 http://www.loc.gov/standards/sru/index.html
25 does not include any specification for CQL sorting.
26 Therefore the original proposal at
27 http://zing.z3950.org/cql/sorting.html
28 is still considered canonical.
30 1.0 Fri Jun 29 14:10:28 BST 2007
31 - Support for version 1.1 as described at
32 http://www.loc.gov/standards/sru/specs/cql.html
33 Since this is a significant leap forward, the version
34 numbering increases to the next major version.
35 - "Qualifiers" renamed as "indexes" throughout, to match what
36 is now universal CQL terminology.
38 PLEASE NOTE THE FOLLOWING INCOMPATIBLE API CHANGES
39 - The class UnknownQualifierException is replaced by
40 UnknownIndexException.
41 - The CQLTermNode method getQualifier() is replaced by
44 0.7 Thu Sep 4 22:51:11 2003
45 - Support for profiled relations and relation modifiers:
46 recognise any non-key word as a relation or modifier,
47 rejecting those that are not of the form <prefix>.<name>
48 since these must be explicitly tied to a "context" (what
49 used to be called a qualifier-set or index-set).
51 0.6 Tue Jul 29 23:33:56 2003
52 - Include Ralph's fix for CQLTermNode::toType1BER() to prevent
53 it surrounding multi-word terms in quotes when encoded into
56 0.5 Wed Feb 5 15:50:57 2003
57 - Add an extra back-end method,
58 byte[] toType1BER(Properties config)
59 which generates an opaque BER-encoded PDU suitable for
60 forwarding to Z39.50 server as a pasrt of a searchRequest
61 APDU. This was contributed by Ralph Levan <levan@oclc.org>
62 - Add srw.resultSet support to the toPFQ() method.
63 - Add new resultSetName() method to CQLNode and its
64 subclasses, returning the name of the referenced result-set
65 for a node that is just a result-set reference, and null for
67 - Change regression-test rules for Adam's compiler to use his
68 new front-end cql2xcql instead of the old cqlparse3.
69 - Change the names of the anchoring properties in
70 etc/pqf.properties and the CQLTermNode code that examines
71 them, in accordance with Adam's PQF-renderer's behaviour.
72 This gives more flexibility in terms of generating
73 attributes for end-of-field anchoring. Various other minor
74 tweaks to the pqf.properties file, mostly to the comments.
75 - Change the capitalisation of the project name from
76 "cql-java" to "CQL-Java". That doesn't really make any
77 difference to anything: in particular, file-names such as
78 "cql-java.jar" remain the same.
80 0.4 Thu Nov 21 10:09:26 2002
81 - Add support for the new "phonetic" relation modifier,
82 including its mapping in "etc/pqf.properties".
83 - Make prefix-maps bind loosely, so that ``>dc=x a and b''
84 applies the dc=x binding to both the ``a'' and ``b''
86 - Change the XCQL output to include the nasty (but official)
87 <leftOperand> and <rightOperand> wrapper elements.
88 - Change the XCQL output to use the nasty (but official)
89 rendition of prefix-mapping: a <prefixes> element,
90 containing one of more <prefix>es may appear at the top
91 of either a <searchClause> or a <triple>.
92 - Include test/regression/xmlpp.pl in the distribution: this
93 may now be used for testing whether a CQL compiler produces
94 _equivalent_ XCQL to what's in the regression test, rather
95 than requiring byte-identical output.
96 - Include the reference XCQL output in the distribution, for
97 the regression test suite to run against.
98 - Change build process so that javadoc documentation is built
99 by "make" in the "docs" directory. There's now a top-level
100 makefile that builds the source, runs the test suite and
101 creates the documentation.
102 - Write javadoc comments for CQLRelation and ModifierSet.
103 - Other improvements to javadoc comments (e.g. describe the
104 `config' parameter to the toPQF() method.)
105 - Sort out the licence: I've settled on the LGPL.
106 - Remove the redundant and misleading etc/Grammar file.
107 - Fix up various Maintenance Agency web addresses that have
108 moved in the great ZING-release shake-up.
110 0.3 Fri Nov 15 12:04:04 2002
111 - Allow keywords to be used unquoted as search terms.
112 - Add support for serverChoiceRelation (scr).
113 - Add support for prefix-mapping, as in
114 >dc="http://www.loc.gov/zing/cql/dc-indexes/" dc.title=fish
116 >"http://www.loc.gov/zing/cql/dc-indexes/" dc.title=fish
117 The XCQL generated corresponds to Adam's suggested format
118 rather than Rob's, not so much because I prefer it (although
119 I do) as because it's what fell out when I just Coded What
120 Comes Natur'ly. That may need to change, depending on the
121 result of the ZNG list's deliberations.
122 - Fix the parser to normalise relation modifiers to lower case.
123 - Fix the CQLParser test harness not to emit an extraneous
124 blank line at end of XCQL output.
125 - Fix CQLNode documentation to contain a link to YAZ's
126 documentation of Prefix Query Format (PQF) rather than
127 containing a rather unhelpful chunk of BNF.
128 - Change the test/regression Makefile so that "make clean" now
129 does what "make distclean" used to do - the distinction
130 between them is pointless.
131 - Fix a few typos in the documentation.
132 - Move the README file's old "THINGS TO DO" section to the end
133 of this file, the new "Still to do" section.
135 0.2 Wed Nov 6 23:05:54 2002
136 - Fix the order of proximity parameters in accordance with the
137 updated official grammar, which now specifies proximity
138 operators of the form
139 prox/<relation>/<distance>/<unit>/<ordering>
140 as in ``foo prox/<=/3/sentence bar''.
141 - Make the necessary parts of the CQLNode class and its
142 subclasses public. This means that client code can now walk
143 through parse-trees and so implement its own back-end
144 (e.g. to build BER-friendly data structures using whatever
145 Z39.50 toolkit is preferred.)
146 - Add the toPQF(Properties p) method to CQLNode and its
147 subclasses. This produces a query in YAZ-style Prefix Query
148 Format, which can be trivially translated into a Z39.50
149 Type-1 query (see, for example, JZKit's code to do so).
150 - Add etc/pqf.properties to configure the toPQF() method.
151 - Add "-p <props-file>" option to the CQLParser test-harness,
152 indicating that the parsed tree is to be rendered to PQF.
153 - Add PQFTranslationException and its subclasses
154 UnknownQualifierException, UnknownRelationException,
155 UnknownRelationModifierException and
156 UnknownPositionException.
157 - Rename ParameterMissingException to MissingParameterException.
158 - Add javadoc comments for CQLNode and its subclasses.
160 0.1 Sun Nov 3 20:58:27 2002
161 - First public release.
166 - Test-harness option to use Type1 BER back-end.
167 - Case-insensitive matching for serverChoice and any other
168 special-case qualifiers. (Are the configured qualifiers
169 matched case-insensitively? They should be.)
170 - Prefix-aware matching for serverChoice, so that
171 >x="http://www.loc.gov/zing/srw/dc-indexes/v1.0/" x.resultSet=foo
172 does the right thing.
173 - Extend test-suite for PQF and BER renderers.
174 - Additional test-suite entries for things like
176 - Add a new configuration file that allows arbitrary new
177 relations and relation modifiers to be defined.
178 - Fix the bug where "9x" is parsed as two tokens, a TT_NUMBER
179 followed by a TT_WORD. The problem here is that I don't
180 think it's actually possible to fix this without throwing
181 out StreamTokenizer and rolling our own, which we absolutely
182 - Fix term-to-PQF translation to omit empty properties
183 (for the broken Korean server)
184 - Write "package.html" file for the javadoc documentation.
185 - Some niceties for the cql-decompiling back-end:
186 * Don't emit redundant parentheses.
187 * Don't put spaces around relations that don't need them.
188 - Many refinements to the random query generator:
189 * Generate relation modifiers
191 * Don't always generate qualifier/relation for terms
192 * Better selection of qualifier (configurable?)
193 * Better selection of terms (from a dictionary file?)
194 * Introduce wildcard characters into generated terms
195 * Generate multi-word terms
196 * Generate prefix-mappings