1 $Id: Changes,v 1.66 2007-09-14 09:42:01 mike Exp $
3 Revision history for Perl extension Net::Z3950::ZOOM.
6 - Add new sample program, samples/zoom/zoomscan.pl
7 - samples/zoom/zoomtst1.pl now accepts arbitrary options at
8 the end of the command-line, so that (for example) you can
9 specify a non-USMARC record syntax.
10 - The render() method of ZOOM::Exception(), and therefore the
11 overloaded stringifying operator, deals with exceptions that
14 1.19 Mon Jul 9 14:09:31 BST 2007
15 - Add $conn->exception() method.
16 - Set version number for Net::Z3950 to 0.99 -- less than the
17 1.0 version number that will be used when it successfully
18 emulates the old Net::Z3950 module, but superseding the last
19 release, 0.51, of that module.
20 - Include samples/zoom/zdump.pl in distribution.
21 - Add "irspy" namespace to samples/zoom/zselect
23 1.18 Mon Feb 26 14:57:48 GMT 2007
24 - When a connection is in asynchronous mode, failing
25 operations (search, scan, etc.) no longer throw exceptions.
26 This is because the event-loop in asychronous applications
27 needs to check for errors anyway, in case the server has
28 returned high-level diagnostics such as "unsupported use
29 attribute". So this check within the event-loop is now the
30 only place where error-checking need be done.
31 - Add new public ZOOM::Connection() function, check(), which
32 throws an exception if an error is pending (even if the
33 connection is asynchronous).
34 - New YAZ logging level, "zoom_check", notes when errors are
35 detected and either left unreported (asynchronous
36 connections) or thrown as exception (synchronous).
38 1.17 Thu Feb 22 20:38:45 GMT 2007
39 - Change Net::Z3950::ZOOM::event() to allocate its array of
40 connection pointers dynamically, so there is no longer an
41 arbitrary limit of 100.
42 - New connection-level option "_check_debug" emits messages on
43 standard error when checking a connection find an error that
44 is about to result in throwing an exception. There is no
45 reason for you ever to use this, though -- pretend you don't
48 1.16 Tue Jan 16 11:18:34 GMT 2007
49 - Require version 2.1.41 or better of YAZ, so that Init
50 Response options are available using
51 $conn->option("init_opt_sort") etc.
52 - Include samples/zoom/zhello.pl to exercise these options.
53 - Add ZOOM_connection_peek_event() and $conn->peek_event().
54 - Require YAZ version 2.1.45, which is the first to provide
55 ZOOM_connection_peek_event().
57 1.15 Fri Dec 1 14:17:49 GMT 2006
58 - ZOOM::Error::INIT is renamed to ZOOM::Error::ZINIT, since
59 INIT is a reserved word in Perl. In version 1.14 and
60 earlier, "require ZOOM" would fail, saying "Too late to run
61 INIT block", and "use ZOOM" would result in
62 ZOOM::Error::INIT having a value equal to its name (why?!)
63 rather than, as intended, Net::Z3950::ZOOM::ERROR_INIT.
64 - Belatedly added documentation for $rec->error() and
67 1.14 Tue Nov 28 17:33:07 GMT 2006
68 - Add $record->error() to return non-surrogate diagnostics,
69 and $record->exception() to return the same information
70 wrapped in a ZOOM::Exception object.
71 - Requires YAZ 2.1.40, which provides ZOOM_record_error().
72 - $conn->error_x() now returns the error-code when called in
73 scalar context, rather than the diagnostic set name.
75 1.13 Sat Nov 4 16:47:00 GMT 2006
76 - ZOOM::Connection::create() may now take either a single
77 argument, which is a ZOOM::Options object, or any even
78 number of argument (including zero), which are key => value
79 pairs of options to set.
80 - ZOOM::Connection::new(), having been refactored to use
81 create(), can now also take a ZOOM::Options argument.
82 - Documentation now includes information on specifying SRW,
83 SRU-over-GET and SRU-over-POST connections.
84 - ZOOM::ResultSet::record() throws a diagnostic if asked to
85 retrieve records out of range for the result-set.
86 - All tests against indexdata.com are now explicitly against
87 z3950.indexdata.com, as the identity of the former name has
90 1.12 (NEVER PUBLICLY RELEASED; these changes are included in 1.13)
91 - Include the useful example program samples/zoom/zselect,
92 which is installed as part of "make install".
93 - Add ZOOM_connection_is_idle() and $conn->is_idle().
94 - Require YAZ version 2.1.35, which is the first to provide
95 ZOOM_connection_is_idle().
96 - Fix bug in ZOOM::Connection class code that made the
97 difficult to subclass -- when called as
98 $class->SUPER::new(@_), the constructor blessed the new
99 object into ZOOM::Connection rather than info the subclass.
101 1.11 Thu Aug 31 16:47:53 BST 2006
102 - Require YAZ version 2.1.17, which has important ZOOM-C
104 - Do not use "-Wdeclaration-after-statement" compiler option,
105 since this supported only by GCC (and only recent versions).
107 1.10 Thu Jun 15 16:42:47 BST 2006
108 - No functional changes, but use Adam's modified API to
109 ZOOM_query_ccl2rpn(). This incompatible change means that
110 RELEASE 1.09 WILL NOT BUILD against any recent YAZ.
112 1.09 Tue Jun 13 17:44:43 2006
113 - Add new function Net::Z3950::ZOOM::query_ccl2rpn(), for
114 client-side CCL compilation.
115 - Add new ZOOM::Query::CCL2RPN class, encapsulating CCL
116 compiler functionality as a Query subclass. This allows
117 client-side CCL to be used for both search and scan.
118 - Add two new error-codes, CCL_CONFIG and CCL_PARSE,
119 returned by the client-side CCL facilities.
120 - Supply a sample CCL profile file: samples/ccl/default.bib,
121 copied from the same-named file distributed with YAZ.
122 - The test-scripts t/12-query.t and t/22-query.t are extended
123 to also test client-side CCL searching.
124 - The test-scripts t/15-scan.t and t/25-scan.t are extended
125 to also test client-side CCL scanning.
126 - Documentation updated to describe use of CCL.
127 - Add a nice, simple update client: samples/zoom/update.pl
129 1.08 Thu May 11 22:40:41 BST 2006
130 - Requires version 2.1.11 of YAZ, not 2.0.11. This is a
131 bugfix: the old reliance on 2.0.11 was merely a typo.
133 1.07 Thu May 11 17:45:37 BST 2006
134 - Makefile.PL checks for at least version 2.1.11 of YAZ, and
135 refuses to build if it's not present. Thanks to "gregor"
136 (an otherwise anonymous CPAN tester) for notifying me of the
137 previously poor reporting of failure when running against an
139 - No changes to functionality or documentation.
141 1.06 Wed Apr 19 21:11:52 BST 2006
142 - Avoid mixed statement/declaration in ZOOM.xs. *sigh* Why
143 the heck GCC allows this by default I will never understand.
144 - Add (commented out) OPTIMIZE option to Makefile.PL, to turn
145 on -Wdeclaration-after-statement, which makes mixed
146 statement/declaration illegal.
148 1.05 Wed Apr 12 13:31:27 BST 2006
149 - Implementation of asynchronous events! The Net::Z3950::ZOOM
150 interface provides this through the event, last_event() and
151 event_str() functions. The ZOOM interface provides it
152 through the ZOOM::event() and ZOOM:event_str() functions,
153 and the ZOOM::Connection class's last_event() function.
154 - New sample programs added illustrating both asynchronous
155 interfaces: samples/net-z3950-zoom/zoomtst3.pl and
156 samples/zoom/zoomtst3.pl respectively. Additional sample
157 programs "async.pl" and "trivial-async.pl" for the ZOOM
158 interface only, the latter being a "shortest possible
159 broadcast search application".
160 - Added documentation on writing asynchronous applications.
161 - Added test-scripts "t/19-events.t" and "t/29-event.t" for
162 events on an asynchronous connection.
163 - Fix ZOOM::Connection::new so that options are handled in
164 accordance with the documentation: applied _before_ the
165 connection is forged, so that "async" and similar options
168 1.04 Mon Apr 3 14:56:11 BST 2006
169 - The ZOOM-Perl layer now provides access to the underlying
170 ZOOM-C's character-translation functionality, through new
171 optional arguments to ZOOM::Record's render() and raw()
172 methods, and a new underlying get() method.
174 1.03 Thu Mar 9 12:55:23 GMT 2006
175 - Allow additional key => value pairs as arguments to the
176 ZOOM::Connectoion constructor; these are added as Connection
177 options before the protocol connection is forged.
179 1.02 Thu Mar 9 11:36:55 GMT 2006
180 - Add interface to yaz_version().
181 - Emit big warning at startup time if YAZ version is less than
182 2.0.11 (which is what ZOOM-Perl 1.02 requires) unless the
183 file /tmp/ignore-ZOOM-YAZ-version-mismatch exists.
184 - Fix incorrect ZOOM-package URL in documentation.
185 - Fix typo ("createdb" package) in documentation.
186 - The ZOOM::Connection constructor may now be called with only
187 a single argument (host-string) and does not require a
188 dummy port-number argument.
190 1.01 Thu Dec 22 14:13:34 GMT 2005
191 - Place some CODE: chunks in "ZOOM.xs" inside curly brackets
192 so that the declarations they begin with are at the start of
193 the block. This avoid mixed code/declarations. (The
194 "correct" solution is to use INIT: clauses in the XS file,
195 but they don't seem to work: the code in them is slapped
196 down right next to the CODE:, so declarations are not
197 acceptable there either.)
198 - Add new function Net::Z3950::ZOOM::connection_scan1(), which
199 uses a query object to indicate the start-term. This opens
200 the way for using CQL queries for scanning once the
201 underlying ZOOM-C code supports this.
202 - NOTE BACKWARDS-INCOMPATIBLE CHANGE: The ZOOM::Connection
203 method scan() is renamed scan_pqf(), and a new scan() method
204 is introduced which calls the underlying scan1() function.
205 Thus the scan()/scan_pqf() dichotomy is consistent with that
206 between search()/search_pqf().
207 - The tests t/15-scan.t and t/25-scan.t now also test for
208 scanning by CQL query. To support these tests, a new files
209 is added to the distribution, "samples/cql/pqf.properties"
210 - Remove nonsensical clause about CQL sort-specifications from
212 - Add new function Net::Z3950::ZOOM::query_cql2rpn(), for
213 client-side CQL compilation.
214 - Add new ZOOM::Query::CQL2RPN class, encapsulating CQL
215 compiler functionality as a Query subclass.
216 - Add two new error-codes, CQL_PARSE and CQL_TRANSFORM,
217 returned by the client-side CQL facilities.
218 - The test-scripts t/12-query.t and t/22-query.t are extended
219 to also test client-side CQL compilation.
220 - Add all the yaz_log*() functions within the Net::Z3950::ZOOM
222 - Add new ZOOM::Log class for logging, providing aliases for
223 the functions in the Net::Z3950::ZOOM layer.
224 - Add diagnostic set to rendering of Exception objects.
225 - Documentation added for CQL compilation and logging.
227 1.00 Wed Dec 14 11:18:33 GMT 2005
228 - First distributed version.
230 0.01 Fri Oct 7 16:14:20 2005
231 - original version; created by h2xs 1.23 with options
232 --name=Net::Z3950::ZOOM --compat-version=5.8.0 \
233 --omit-constant --skip-exporter --skip-ppport \
234 --autogen-xsubs yaz/zoom.h -lyaz -lxml2
238 To be done in future releases:
239 - Complete, test and document "update.pl"
240 - Fix Net::Z3950::ZOOM::record_get() to use a struct datachunk
241 _when_ appropriate, e.g. for "render" but probably not for
242 "database" and "syntax".
243 - Create old-style Net::Z3950 compatibility layer.
244 - Fix memory leaks in callback functions for option sets.
245 - Fix limitation that option-set callback functions must be
246 specified as strings containing package-qualified function