1 $Id: Changes,v 1.60 2007-04-18 11:19:10 mike Exp $
3 Revision history for Perl extension Net::Z3950::ZOOM.
6 - Set version number for Net::Z3950 to 0.99 -- less than the
7 1.0 version number that will be used when it successfully
8 emulates the old Net::Z3950 module, but superseding the last
9 release, 0.51, of that module.
10 - Include samples/zoom/zdump.pl in distribution.
11 - Add "irspy" namespace to samples/zoom/zselect
13 1.18 Mon Feb 26 14:57:48 GMT 2007
14 - When a connection is in asynchronous mode, failing
15 operations (search, scan, etc.) no longer throw exceptions.
16 This is because the event-loop in asychronous applications
17 needs to check for errors anyway, in case the server has
18 returned high-level diagnostics such as "unsupported use
19 attribute". So this check within the event-loop is now the
20 only place where error-checking need be done.
21 - Add new public ZOOM::Connection() function, check(), which
22 throws an exception if an error is pending (even if the
23 connection is asynchronous).
24 - New YAZ logging level, "zoom_check", notes when errors are
25 detected and either left unreported (asynchronous
26 connections) or thrown as exception (synchronous).
28 1.17 Thu Feb 22 20:38:45 GMT 2007
29 - Change Net::Z3950::ZOOM::event() to allocate its array of
30 connection pointers dynamically, so there is no longer an
31 arbitrary limit of 100.
32 - New connection-level option "_check_debug" emits messages on
33 standard error when checking a connection find an error that
34 is about to result in throwing an exception. There is no
35 reason for you ever to use this, though -- pretend you don't
38 1.16 Tue Jan 16 11:18:34 GMT 2007
39 - Require version 2.1.41 or better of YAZ, so that Init
40 Response options are available using
41 $conn->option("init_opt_sort") etc.
42 - Include samples/zoom/zhello.pl to exercise these options.
43 - Add ZOOM_connection_peek_event() and $conn->peek_event().
44 - Require YAZ version 2.1.45, which is the first to provide
45 ZOOM_connection_peek_event().
48 1.15 Fri Dec 1 14:17:49 GMT 2006
49 - ZOOM::Error::INIT is renamed to ZOOM::Error::ZINIT, since
50 INIT is a reserved word in Perl. In version 1.14 and
51 earlier, "require ZOOM" would fail, saying "Too late to run
52 INIT block", and "use ZOOM" would result in
53 ZOOM::Error::INIT having a value equal to its name (why?!)
54 rather than, as intended, Net::Z3950::ZOOM::ERROR_INIT.
55 - Belatedly added documentation for $rec->error() and
58 1.14 Tue Nov 28 17:33:07 GMT 2006
59 - Add $record->error() to return non-surrogate diagnostics,
60 and $record->exception() to return the same information
61 wrapped in a ZOOM::Exception object.
62 - Requires YAZ 2.1.40, which provides ZOOM_record_error().
63 - $conn->error_x() now returns the error-code when called in
64 scalar context, rather than the diagnostic set name.
66 1.13 Sat Nov 4 16:47:00 GMT 2006
67 - ZOOM::Connection::create() may now take either a single
68 argument, which is a ZOOM::Options object, or any even
69 number of argument (including zero), which are key => value
70 pairs of options to set.
71 - ZOOM::Connection::new(), having been refactored to use
72 create(), can now also take a ZOOM::Options argument.
73 - Documentation now includes information on specifying SRW,
74 SRU-over-GET and SRU-over-POST connections.
75 - ZOOM::ResultSet::record() throws a diagnostic if asked to
76 retrieve records out of range for the result-set.
77 - All tests against indexdata.com are now explicitly against
78 z3950.indexdata.com, as the identity of the former name has
81 1.12 (NEVER PUBLICLY RELEASED; these changes are included in 1.13)
82 - Include the useful example program samples/zoom/zselect,
83 which is installed as part of "make install".
84 - Add ZOOM_connection_is_idle() and $conn->is_idle().
85 - Require YAZ version 2.1.35, which is the first to provide
86 ZOOM_connection_is_idle().
87 - Fix bug in ZOOM::Connection class code that made the
88 difficult to subclass -- when called as
89 $class->SUPER::new(@_), the constructor blessed the new
90 object into ZOOM::Connection rather than info the subclass.
92 1.11 Thu Aug 31 16:47:53 BST 2006
93 - Require YAZ version 2.1.17, which has important ZOOM-C
95 - Do not use "-Wdeclaration-after-statement" compiler option,
96 since this supported only by GCC (and only recent versions).
98 1.10 Thu Jun 15 16:42:47 BST 2006
99 - No functional changes, but use Adam's modified API to
100 ZOOM_query_ccl2rpn(). This incompatible change means that
101 RELEASE 1.09 WILL NOT BUILD against any recent YAZ.
103 1.09 Tue Jun 13 17:44:43 2006
104 - Add new function Net::Z3950::ZOOM::query_ccl2rpn(), for
105 client-side CCL compilation.
106 - Add new ZOOM::Query::CCL2RPN class, encapsulating CCL
107 compiler functionality as a Query subclass. This allows
108 client-side CCL to be used for both search and scan.
109 - Add two new error-codes, CCL_CONFIG and CCL_PARSE,
110 returned by the client-side CCL facilities.
111 - Supply a sample CCL profile file: samples/ccl/default.bib,
112 copied from the same-named file distributed with YAZ.
113 - The test-scripts t/12-query.t and t/22-query.t are extended
114 to also test client-side CCL searching.
115 - The test-scripts t/15-scan.t and t/25-scan.t are extended
116 to also test client-side CCL scanning.
117 - Documentation updated to describe use of CCL.
118 - Add a nice, simple update client: samples/zoom/update.pl
120 1.08 Thu May 11 22:40:41 BST 2006
121 - Requires version 2.1.11 of YAZ, not 2.0.11. This is a
122 bugfix: the old reliance on 2.0.11 was merely a typo.
124 1.07 Thu May 11 17:45:37 BST 2006
125 - Makefile.PL checks for at least version 2.1.11 of YAZ, and
126 refuses to build if it's not present. Thanks to "gregor"
127 (an otherwise anonymous CPAN tester) for notifying me of the
128 previously poor reporting of failure when running against an
130 - No changes to functionality or documentation.
132 1.06 Wed Apr 19 21:11:52 BST 2006
133 - Avoid mixed statement/declaration in ZOOM.xs. *sigh* Why
134 the heck GCC allows this by default I will never understand.
135 - Add (commented out) OPTIMIZE option to Makefile.PL, to turn
136 on -Wdeclaration-after-statement, which makes mixed
137 statement/declaration illegal.
139 1.05 Wed Apr 12 13:31:27 BST 2006
140 - Implementation of asynchronous events! The Net::Z3950::ZOOM
141 interface provides this through the event, last_event() and
142 event_str() functions. The ZOOM interface provides it
143 through the ZOOM::event() and ZOOM:event_str() functions,
144 and the ZOOM::Connection class's last_event() function.
145 - New sample programs added illustrating both asynchronous
146 interfaces: samples/net-z3950-zoom/zoomtst3.pl and
147 samples/zoom/zoomtst3.pl respectively. Additional sample
148 programs "async.pl" and "trivial-async.pl" for the ZOOM
149 interface only, the latter being a "shortest possible
150 broadcast search application".
151 - Added documentation on writing asynchronous applications.
152 - Added test-scripts "t/19-events.t" and "t/29-event.t" for
153 events on an asynchronous connection.
154 - Fix ZOOM::Connection::new so that options are handled in
155 accordance with the documentation: applied _before_ the
156 connection is forged, so that "async" and similar options
159 1.04 Mon Apr 3 14:56:11 BST 2006
160 - The ZOOM-Perl layer now provides access to the underlying
161 ZOOM-C's character-translation functionality, through new
162 optional arguments to ZOOM::Record's render() and raw()
163 methods, and a new underlying get() method.
165 1.03 Thu Mar 9 12:55:23 GMT 2006
166 - Allow additional key => value pairs as arguments to the
167 ZOOM::Connectoion constructor; these are added as Connection
168 options before the protocol connection is forged.
170 1.02 Thu Mar 9 11:36:55 GMT 2006
171 - Add interface to yaz_version().
172 - Emit big warning at startup time if YAZ version is less than
173 2.0.11 (which is what ZOOM-Perl 1.02 requires) unless the
174 file /tmp/ignore-ZOOM-YAZ-version-mismatch exists.
175 - Fix incorrect ZOOM-package URL in documentation.
176 - Fix typo ("createdb" package) in documentation.
177 - The ZOOM::Connection constructor may now be called with only
178 a single argument (host-string) and does not require a
179 dummy port-number argument.
181 1.01 Thu Dec 22 14:13:34 GMT 2005
182 - Place some CODE: chunks in "ZOOM.xs" inside curly brackets
183 so that the declarations they begin with are at the start of
184 the block. This avoid mixed code/declarations. (The
185 "correct" solution is to use INIT: clauses in the XS file,
186 but they don't seem to work: the code in them is slapped
187 down right next to the CODE:, so declarations are not
188 acceptable there either.)
189 - Add new function Net::Z3950::ZOOM::connection_scan1(), which
190 uses a query object to indicate the start-term. This opens
191 the way for using CQL queries for scanning once the
192 underlying ZOOM-C code supports this.
193 - NOTE BACKWARDS-INCOMPATIBLE CHANGE: The ZOOM::Connection
194 method scan() is renamed scan_pqf(), and a new scan() method
195 is introduced which calls the underlying scan1() function.
196 Thus the scan()/scan_pqf() dichotomy is consistent with that
197 between search()/search_pqf().
198 - The tests t/15-scan.t and t/25-scan.t now also test for
199 scanning by CQL query. To support these tests, a new files
200 is added to the distribution, "samples/cql/pqf.properties"
201 - Remove nonsensical clause about CQL sort-specifications from
203 - Add new function Net::Z3950::ZOOM::query_cql2rpn(), for
204 client-side CQL compilation.
205 - Add new ZOOM::Query::CQL2RPN class, encapsulating CQL
206 compiler functionality as a Query subclass.
207 - Add two new error-codes, CQL_PARSE and CQL_TRANSFORM,
208 returned by the client-side CQL facilities.
209 - The test-scripts t/12-query.t and t/22-query.t are extended
210 to also test client-side CQL compilation.
211 - Add all the yaz_log*() functions within the Net::Z3950::ZOOM
213 - Add new ZOOM::Log class for logging, providing aliases for
214 the functions in the Net::Z3950::ZOOM layer.
215 - Add diagnostic set to rendering of Exception objects.
216 - Documentation added for CQL compilation and logging.
218 1.00 Wed Dec 14 11:18:33 GMT 2005
219 - First distributed version.
221 0.01 Fri Oct 7 16:14:20 2005
222 - original version; created by h2xs 1.23 with options
223 --name=Net::Z3950::ZOOM --compat-version=5.8.0 \
224 --omit-constant --skip-exporter --skip-ppport \
225 --autogen-xsubs yaz/zoom.h -lyaz -lxml2
229 To be done in future releases:
230 - Complete, test and document "update.pl"
231 - Fix Net::Z3950::ZOOM::record_get() to use a struct datachunk
232 _when_ appropriate, e.g. for "render" but probably not for
233 "database" and "syntax".
234 - Create old-style Net::Z3950 compatibility layer.
235 - Fix memory leaks in callback functions for option sets.
236 - Fix limitation that option-set callback functions must be
237 specified as strings containing package-qualified function