1 $Id: Changes,v 1.64 2007-08-15 18:37:01 mike Exp $
3 Revision history for Perl extension Net::Z3950::ZOOM.
6 - Add new sample program, samples/zoom/zoomscan.pl
8 1.19 Mon Jul 9 14:09:31 BST 2007
9 - Add $conn->exception() method.
10 - Set version number for Net::Z3950 to 0.99 -- less than the
11 1.0 version number that will be used when it successfully
12 emulates the old Net::Z3950 module, but superseding the last
13 release, 0.51, of that module.
14 - Include samples/zoom/zdump.pl in distribution.
15 - Add "irspy" namespace to samples/zoom/zselect
17 1.18 Mon Feb 26 14:57:48 GMT 2007
18 - When a connection is in asynchronous mode, failing
19 operations (search, scan, etc.) no longer throw exceptions.
20 This is because the event-loop in asychronous applications
21 needs to check for errors anyway, in case the server has
22 returned high-level diagnostics such as "unsupported use
23 attribute". So this check within the event-loop is now the
24 only place where error-checking need be done.
25 - Add new public ZOOM::Connection() function, check(), which
26 throws an exception if an error is pending (even if the
27 connection is asynchronous).
28 - New YAZ logging level, "zoom_check", notes when errors are
29 detected and either left unreported (asynchronous
30 connections) or thrown as exception (synchronous).
32 1.17 Thu Feb 22 20:38:45 GMT 2007
33 - Change Net::Z3950::ZOOM::event() to allocate its array of
34 connection pointers dynamically, so there is no longer an
35 arbitrary limit of 100.
36 - New connection-level option "_check_debug" emits messages on
37 standard error when checking a connection find an error that
38 is about to result in throwing an exception. There is no
39 reason for you ever to use this, though -- pretend you don't
42 1.16 Tue Jan 16 11:18:34 GMT 2007
43 - Require version 2.1.41 or better of YAZ, so that Init
44 Response options are available using
45 $conn->option("init_opt_sort") etc.
46 - Include samples/zoom/zhello.pl to exercise these options.
47 - Add ZOOM_connection_peek_event() and $conn->peek_event().
48 - Require YAZ version 2.1.45, which is the first to provide
49 ZOOM_connection_peek_event().
51 1.15 Fri Dec 1 14:17:49 GMT 2006
52 - ZOOM::Error::INIT is renamed to ZOOM::Error::ZINIT, since
53 INIT is a reserved word in Perl. In version 1.14 and
54 earlier, "require ZOOM" would fail, saying "Too late to run
55 INIT block", and "use ZOOM" would result in
56 ZOOM::Error::INIT having a value equal to its name (why?!)
57 rather than, as intended, Net::Z3950::ZOOM::ERROR_INIT.
58 - Belatedly added documentation for $rec->error() and
61 1.14 Tue Nov 28 17:33:07 GMT 2006
62 - Add $record->error() to return non-surrogate diagnostics,
63 and $record->exception() to return the same information
64 wrapped in a ZOOM::Exception object.
65 - Requires YAZ 2.1.40, which provides ZOOM_record_error().
66 - $conn->error_x() now returns the error-code when called in
67 scalar context, rather than the diagnostic set name.
69 1.13 Sat Nov 4 16:47:00 GMT 2006
70 - ZOOM::Connection::create() may now take either a single
71 argument, which is a ZOOM::Options object, or any even
72 number of argument (including zero), which are key => value
73 pairs of options to set.
74 - ZOOM::Connection::new(), having been refactored to use
75 create(), can now also take a ZOOM::Options argument.
76 - Documentation now includes information on specifying SRW,
77 SRU-over-GET and SRU-over-POST connections.
78 - ZOOM::ResultSet::record() throws a diagnostic if asked to
79 retrieve records out of range for the result-set.
80 - All tests against indexdata.com are now explicitly against
81 z3950.indexdata.com, as the identity of the former name has
84 1.12 (NEVER PUBLICLY RELEASED; these changes are included in 1.13)
85 - Include the useful example program samples/zoom/zselect,
86 which is installed as part of "make install".
87 - Add ZOOM_connection_is_idle() and $conn->is_idle().
88 - Require YAZ version 2.1.35, which is the first to provide
89 ZOOM_connection_is_idle().
90 - Fix bug in ZOOM::Connection class code that made the
91 difficult to subclass -- when called as
92 $class->SUPER::new(@_), the constructor blessed the new
93 object into ZOOM::Connection rather than info the subclass.
95 1.11 Thu Aug 31 16:47:53 BST 2006
96 - Require YAZ version 2.1.17, which has important ZOOM-C
98 - Do not use "-Wdeclaration-after-statement" compiler option,
99 since this supported only by GCC (and only recent versions).
101 1.10 Thu Jun 15 16:42:47 BST 2006
102 - No functional changes, but use Adam's modified API to
103 ZOOM_query_ccl2rpn(). This incompatible change means that
104 RELEASE 1.09 WILL NOT BUILD against any recent YAZ.
106 1.09 Tue Jun 13 17:44:43 2006
107 - Add new function Net::Z3950::ZOOM::query_ccl2rpn(), for
108 client-side CCL compilation.
109 - Add new ZOOM::Query::CCL2RPN class, encapsulating CCL
110 compiler functionality as a Query subclass. This allows
111 client-side CCL to be used for both search and scan.
112 - Add two new error-codes, CCL_CONFIG and CCL_PARSE,
113 returned by the client-side CCL facilities.
114 - Supply a sample CCL profile file: samples/ccl/default.bib,
115 copied from the same-named file distributed with YAZ.
116 - The test-scripts t/12-query.t and t/22-query.t are extended
117 to also test client-side CCL searching.
118 - The test-scripts t/15-scan.t and t/25-scan.t are extended
119 to also test client-side CCL scanning.
120 - Documentation updated to describe use of CCL.
121 - Add a nice, simple update client: samples/zoom/update.pl
123 1.08 Thu May 11 22:40:41 BST 2006
124 - Requires version 2.1.11 of YAZ, not 2.0.11. This is a
125 bugfix: the old reliance on 2.0.11 was merely a typo.
127 1.07 Thu May 11 17:45:37 BST 2006
128 - Makefile.PL checks for at least version 2.1.11 of YAZ, and
129 refuses to build if it's not present. Thanks to "gregor"
130 (an otherwise anonymous CPAN tester) for notifying me of the
131 previously poor reporting of failure when running against an
133 - No changes to functionality or documentation.
135 1.06 Wed Apr 19 21:11:52 BST 2006
136 - Avoid mixed statement/declaration in ZOOM.xs. *sigh* Why
137 the heck GCC allows this by default I will never understand.
138 - Add (commented out) OPTIMIZE option to Makefile.PL, to turn
139 on -Wdeclaration-after-statement, which makes mixed
140 statement/declaration illegal.
142 1.05 Wed Apr 12 13:31:27 BST 2006
143 - Implementation of asynchronous events! The Net::Z3950::ZOOM
144 interface provides this through the event, last_event() and
145 event_str() functions. The ZOOM interface provides it
146 through the ZOOM::event() and ZOOM:event_str() functions,
147 and the ZOOM::Connection class's last_event() function.
148 - New sample programs added illustrating both asynchronous
149 interfaces: samples/net-z3950-zoom/zoomtst3.pl and
150 samples/zoom/zoomtst3.pl respectively. Additional sample
151 programs "async.pl" and "trivial-async.pl" for the ZOOM
152 interface only, the latter being a "shortest possible
153 broadcast search application".
154 - Added documentation on writing asynchronous applications.
155 - Added test-scripts "t/19-events.t" and "t/29-event.t" for
156 events on an asynchronous connection.
157 - Fix ZOOM::Connection::new so that options are handled in
158 accordance with the documentation: applied _before_ the
159 connection is forged, so that "async" and similar options
162 1.04 Mon Apr 3 14:56:11 BST 2006
163 - The ZOOM-Perl layer now provides access to the underlying
164 ZOOM-C's character-translation functionality, through new
165 optional arguments to ZOOM::Record's render() and raw()
166 methods, and a new underlying get() method.
168 1.03 Thu Mar 9 12:55:23 GMT 2006
169 - Allow additional key => value pairs as arguments to the
170 ZOOM::Connectoion constructor; these are added as Connection
171 options before the protocol connection is forged.
173 1.02 Thu Mar 9 11:36:55 GMT 2006
174 - Add interface to yaz_version().
175 - Emit big warning at startup time if YAZ version is less than
176 2.0.11 (which is what ZOOM-Perl 1.02 requires) unless the
177 file /tmp/ignore-ZOOM-YAZ-version-mismatch exists.
178 - Fix incorrect ZOOM-package URL in documentation.
179 - Fix typo ("createdb" package) in documentation.
180 - The ZOOM::Connection constructor may now be called with only
181 a single argument (host-string) and does not require a
182 dummy port-number argument.
184 1.01 Thu Dec 22 14:13:34 GMT 2005
185 - Place some CODE: chunks in "ZOOM.xs" inside curly brackets
186 so that the declarations they begin with are at the start of
187 the block. This avoid mixed code/declarations. (The
188 "correct" solution is to use INIT: clauses in the XS file,
189 but they don't seem to work: the code in them is slapped
190 down right next to the CODE:, so declarations are not
191 acceptable there either.)
192 - Add new function Net::Z3950::ZOOM::connection_scan1(), which
193 uses a query object to indicate the start-term. This opens
194 the way for using CQL queries for scanning once the
195 underlying ZOOM-C code supports this.
196 - NOTE BACKWARDS-INCOMPATIBLE CHANGE: The ZOOM::Connection
197 method scan() is renamed scan_pqf(), and a new scan() method
198 is introduced which calls the underlying scan1() function.
199 Thus the scan()/scan_pqf() dichotomy is consistent with that
200 between search()/search_pqf().
201 - The tests t/15-scan.t and t/25-scan.t now also test for
202 scanning by CQL query. To support these tests, a new files
203 is added to the distribution, "samples/cql/pqf.properties"
204 - Remove nonsensical clause about CQL sort-specifications from
206 - Add new function Net::Z3950::ZOOM::query_cql2rpn(), for
207 client-side CQL compilation.
208 - Add new ZOOM::Query::CQL2RPN class, encapsulating CQL
209 compiler functionality as a Query subclass.
210 - Add two new error-codes, CQL_PARSE and CQL_TRANSFORM,
211 returned by the client-side CQL facilities.
212 - The test-scripts t/12-query.t and t/22-query.t are extended
213 to also test client-side CQL compilation.
214 - Add all the yaz_log*() functions within the Net::Z3950::ZOOM
216 - Add new ZOOM::Log class for logging, providing aliases for
217 the functions in the Net::Z3950::ZOOM layer.
218 - Add diagnostic set to rendering of Exception objects.
219 - Documentation added for CQL compilation and logging.
221 1.00 Wed Dec 14 11:18:33 GMT 2005
222 - First distributed version.
224 0.01 Fri Oct 7 16:14:20 2005
225 - original version; created by h2xs 1.23 with options
226 --name=Net::Z3950::ZOOM --compat-version=5.8.0 \
227 --omit-constant --skip-exporter --skip-ppport \
228 --autogen-xsubs yaz/zoom.h -lyaz -lxml2
232 To be done in future releases:
233 - Complete, test and document "update.pl"
234 - Fix Net::Z3950::ZOOM::record_get() to use a struct datachunk
235 _when_ appropriate, e.g. for "render" but probably not for
236 "database" and "syntax".
237 - Create old-style Net::Z3950 compatibility layer.
238 - Fix memory leaks in callback functions for option sets.
239 - Fix limitation that option-set callback functions must be
240 specified as strings containing package-qualified function