ZOOM_options_get_bool(opt, name, defa)
ZOOM_options_get_int(opt, name, defa)
ZOOM_options_set_int(opt, name, value)
-ZOOM_connection_scan1 (ZOOM_connection c, ZOOM_query startterm)
+ZOOM_connection_scan1(ZOOM_connection c, ZOOM_query startterm)
ZOOM_query_cql2rpn(ZOOM_query s, const char *str, ZOOM_connection conn)
-->
-<!-- $Id: zoom.xml,v 1.60 2007-06-21 09:00:53 adam Exp $ -->
<chapter id="zoom"><title>ZOOM</title>
<para>
&zoom; is an acronym for 'Z39.50 Object-Orientation Model' and is
void ZOOM_connection_connect(ZOOM_connection c, const char *host,
int portnum);
- void ZOOM_connection_destroy (ZOOM_connection c);
+ void ZOOM_connection_destroy(ZOOM_connection c);
</synopsis>
<para>
Connection objects are created with either function
It's automatically set internally when connecting to a target.
</entry><entry>none</entry></row>
<row><entry>
- proxy</entry><entry>Proxy host
+ proxy</entry><entry>Proxy host. If set, the logical host
+ is encoded in the otherInfo area of the Z39.50 Init PDU
+ with OID 1.2.840.10003.10.1000.81.1.
+ </entry><entry>none</entry></row>
+ <row><entry>
+ clientIP</entry><entry>Client IP. If set, is
+ encoded in the otherInfo area of a Z39.50 PDU with OID
+ 1.2.840.10003.10.1000.81.3. Holds the original IP addreses
+ of a client. Is used of ZOOM is used in a gateway of some sort.
</entry><entry>none</entry></row>
<row><entry>
async</entry><entry>If true (1) the connection operates in
discover whether the server claims to support the specified
operations.
</entry><entry>none</entry></row>
+ <row><entry>
+ sru</entry><entry>
+ SRU transport type. Must be either <literal>soap</literal>,
+ <literal>get</literal> or <literal>post</literal>.
+ </entry><entry>soap</entry></row>
+ <row><entry>
+ sru_version</entry><entry>
+ SRU/SRW version. Should be <literal>1.1</literal>, or
+ <literal>1.2</literal>. This is , prior to connect, the version
+ to offer (highest version). And following connect (in fact
+ first operation), holds the negotiated version with the server
+ (same or lower version).
+ </entry><entry>1.2</entry></row>
</tbody>
</tgroup>
</table>
Character Set and Language Negotiation</ulink> is in effect.
</para>
<synopsis>
- int ZOOM_connection_error (ZOOM_connection c, const char **cp,
- const char **addinfo);
- int ZOOM_connection_error_x (ZOOM_connection c, const char **cp,
- const char **addinfo, const char **dset);
+ int ZOOM_connection_error(ZOOM_connection c, const char **cp,
+ const char **addinfo);
+ int ZOOM_connection_error_x(ZOOM_connection c, const char **cp,
+ const char **addinfo, const char **dset);
</synopsis>
<para>
Function <function>ZOOM_connection_error</function> checks for
a target.
</para>
<synopsis>
- ZOOM_resultset ZOOM_connection_search(ZOOM_connection,
- ZOOM_query q);
+ ZOOM_resultset ZOOM_connection_search(ZOOM_connection, ZOOM_query q);
ZOOM_resultset ZOOM_connection_search_pqf(ZOOM_connection c,
const char *q);
-
void ZOOM_resultset_destroy(ZOOM_resultset r);
</synopsis>
<para>
Function <function>ZOOM_connection_search</function> creates
- a result set given a connection and query.
+ a result set given a connection and query.
Destroy a result set by calling
<function>ZOOM_resultset_destroy</function>.
Simple clients may using PQF only may use function
creating query objects is not necessary.
</para>
<synopsis>
- void ZOOM_resultset_option_set (ZOOM_resultset r,
- const char *key,
- const char *val);
+ void ZOOM_resultset_option_set(ZOOM_resultset r,
+ const char *key, const char *val);
- const char *ZOOM_resultset_option_get (ZOOM_resultset r,
- const char *key);
+ const char *ZOOM_resultset_option_get(ZOOM_resultset r, const char *key);
- size_t ZOOM_resultset_size (ZOOM_resultset r);
+ size_t ZOOM_resultset_size(ZOOM_resultset r);
</synopsis>
<para>
Functions <function>ZOOM_resultset_options_set</function> and
start</entry><entry>Offset of first record to be
retrieved from target. First record has offset 0 unlike the
protocol specifications where first record has position 1.
+ This option affects ZOOM_resultset_search and
+ ZOOM_resultset_search_pqf and must be set before any of
+ these functions are invoked. If a range of
+ records must be fetched manually after search,
+ function ZOOM_resultset_records should be used.
</entry><entry>0</entry></row>
<row><entry>
- count</entry><entry>Number of records to be retrieved.
+ count</entry><entry>Number of records to be retrieved.
+ This option affects ZOOM_resultset_search and
+ ZOOM_resultset_search_pqf and must be set before any of
+ these functions are invoked.
</entry><entry>0</entry></row>
<row><entry>
presentChunk</entry><entry>The number of records to be
- requested from the server in each chunk (present requst). The
+ requested from the server in each chunk (present request). The
value 0 means to request all the records in a single chunk.
(The old <literal>step</literal>
option is also supported for the benefit of old applications.)
int ZOOM_record_error(ZOOM_record rec, const char **msg,
const char **addinfo, const char **diagset);
- ZOOM_record ZOOM_record_clone (ZOOM_record rec);
+ ZOOM_record ZOOM_record_clone(ZOOM_record rec);
- void ZOOM_record_destroy (ZOOM_record rec);
+ void ZOOM_record_destroy(ZOOM_record rec);
</synopsis>
<para>
References to temporary records are returned by functions
The <parameter>type</parameter> is a string of the format:
</para>
<para>
- <replaceable>form</replaceable>[; charset=<replaceable>from</replaceable>[,<replaceable>to</replaceable>]]
+ <replaceable>form</replaceable>[;charset=<replaceable>from</replaceable>[,<replaceable>to</replaceable>]][;format=<replaceable>v</replaceable>]
</para>
<para>
where <replaceable>form</replaceable> specifies the format of the
If <replaceable>to</replaceable> is omitted UTF-8 is assumed.
</para>
<para>
+ The format argument controls whether record data should be XML
+ pretty-printed (post process operation).
+ It is enabled only if format value <replaceable>v</replaceable> is
+ <literal>1</literal> and the record content is XML well-formed.
+ </para>
+ <para>
In addition, for certain types, the length
<literal>len</literal> passed will be set to the size in bytes of
the returned information.
<literal>const char *</literal>.
</para></listitem>
</varlistentry>
+ <varlistentry><term><literal>schema</literal></term>
+ <listitem><para>The schema of the record is returned
+ as a C null-terminated string. Return type is
+ <literal>const char *</literal>.
+ </para></listitem>
+ </varlistentry>
<varlistentry><term><literal>render</literal></term>
<listitem><para>The record is returned in a display friendly
format. Upon completion buffer is returned
MARCXML
</ulink>
(converted from ISO2709 to MARCXML by YAZ).
- GRS-1 and OPAC records are not supported for this form.
+ OPAC records are also converted to XML and the
+ bibliographic record is converted to MARCXML (when possible).
+ GRS-1 records are not supported for this form.
Upon completion, the XML buffer is returned
(type <literal>const char *</literal>) and length is stored in
<literal>*len</literal>.
</para></listitem>
</varlistentry>
<varlistentry><term><literal>opac</literal></term>
- <listitem><para>OPAC for record is returned in XML.
+ <listitem><para>OPAC information for record is returned in XML
+ if an OPAC record is present at the position given. If no
+ OPAC record is present, a NULL pointer is returned.
+ </para></listitem>
+ </varlistentry>
+ <varlistentry><term><literal>txml</literal></term>
+ <listitem><para>The record is returned in TurboMARC if possible.
+ SRU and Z39.50 records with transfer syntax XML are
+ returned verbatim. MARC records are returned in
+ <link linkend="tools.turbomarc">
+ TurboMARC
+ </link>
+ (converted from ISO2709 to TurboMARC by YAZ).
+ Upon completion, the XML buffer is returned
+ (type <literal>const char *</literal>) and length is stored in
+ <literal>*len</literal>.
</para></listitem>
</varlistentry>
</variablelist>
</para>
<para>
- The Scan interface is Z39.50 only. SRW version 1.0 does not
- support this.
+ The Scan interface is supported for both Z39.50 and SRU.
</para>
<synopsis>
ZOOM_scanset ZOOM_connection_scan(ZOOM_connection c,
const char *startpqf);
+ ZOOM_scanset ZOOM_connection_scan1(ZOOM_connection c,
+ ZOOM_query q);
+
size_t ZOOM_scanset_size(ZOOM_scanset scan);
- const char * ZOOM_scanset_term(ZOOM_scanset scan, size_t pos,
- int *occ, size_t *len);
+ const char *ZOOM_scanset_term(ZOOM_scanset scan, size_t pos,
+ size_t *occ, size_t *len);
- const char * ZOOM_scanset_display_term(ZOOM_scanset scan, size_t pos,
- int *occ, size_t *len);
+ const char *ZOOM_scanset_display_term(ZOOM_scanset scan, size_t pos,
+ size_t *occ, size_t *len);
- void ZOOM_scanset_destroy (ZOOM_scanset scan);
+ void ZOOM_scanset_destroy(ZOOM_scanset scan);
const char *ZOOM_scanset_option_get(ZOOM_scanset scan,
- const char *key);
+ const char *key);
void ZOOM_scanset_option_set(ZOOM_scanset scan, const char *key,
const char *val);
@attr 1=4 @attr 6=2 "science o"
</literallayout>
</para>
+
+ <para>
+ The <function>ZOOM_connecton_scan1</function> is a newer and
+ more generic alternative to <function>ZOOM_connection_scan</function>
+ which allows to use both CQL and PQF for Scan.
+ </para>
<table frame="top" id="zoom.scanset.options">
<title>ZOOM Scan Set Options</title>
<row><entry>
number</entry><entry>Number of Scan Terms requested in next scan.
After scan it holds the actual number of terms returned.
- </entry><entry>10</entry></row>
+ </entry><entry>20</entry></row>
<row><entry>
position</entry><entry>Preferred Position of term in response
in next scan; actual position after completion of scan.
<literal>recordDelete</literal>,
<literal>elementUpdate</literal>.
</entry>
- <entry><literal>specialUpdate</literal></entry>
+ <entry><literal>specialUpdate (recordInsert for updateVersion=1 which does not support specialUpdate)</literal></entry>
</row>
<row>
<entry>recordIdOpaque</entry>
<entry>none</entry>
</row>
<row>
+ <entry>recordOpaque</entry>
+ <entry>Specifies an opaque record which is
+ encoded as an ASN.1 ANY type with the OID as tiven by option
+ <literal>syntax</literal> (see below).
+ Option <literal>recordOpaque</literal> is an alternative
+ to record - and <literal>record</literal> option (above) is
+ ignored if recordOpaque is set. This option is only available in
+ YAZ 3.0.35 and later and is meant to facilitate Updates with
+ servers from OCLC.
+ </entry>
+ <entry>none</entry>
+ </row>
+ <row>
<entry>syntax</entry>
<entry>The record syntax (transfer syntax). Is a string that
is a known record syntax.
<entry>Element Set for Record</entry>
<entry>none</entry>
</row>
+ <row>
+ <entry>updateVersion</entry>
+ <entry>Record Update version which holds one of the values
+ 1, 2 or 3. Each version has a distinct OID:
+ 1.2.840.10003.9.5
+ (<ulink url="&url.z39.50.extupdate1;">first version</ulink>) ,
+ 1.2.840.10003.9.5.1
+ (second version) and
+ 1.2.840.10003.9.5.1.1
+ (<ulink url="&url.z39.50.extupdate3;">third and
+ newest version</ulink>).
+ </entry>
+ <entry>3</entry>
+ </row>
</tbody>
</tgroup>
</table>
an associative array / hash.
</para>
<synopsis>
- ZOOM_options ZOOM_options_create (void);
+ ZOOM_options ZOOM_options_create(void);
- ZOOM_options ZOOM_options_create_with_parent (ZOOM_options parent);
+ ZOOM_options ZOOM_options_create_with_parent(ZOOM_options parent);
- void ZOOM_options_destroy (ZOOM_options opt);
+ void ZOOM_options_destroy(ZOOM_options opt);
</synopsis>
<synopsis>
- const char *ZOOM_options_get (ZOOM_options opt, const char *name);
+ const char *ZOOM_options_get(ZOOM_options opt, const char *name);
- void ZOOM_options_set (ZOOM_options opt, const char *name,
- const char *v);
+ void ZOOM_options_set(ZOOM_options opt, const char *name,
+ const char *v);
</synopsis>
<synopsis>
typedef const char *(*ZOOM_options_callback)
- (void *handle, const char *name);
+ (void *handle, const char *name);
ZOOM_options_callback
- ZOOM_options_set_callback (ZOOM_options opt,
- ZOOM_options_callback c,
- void *handle);
+ ZOOM_options_set_callback(ZOOM_options opt,
+ ZOOM_options_callback c,
+ void *handle);
</synopsis>
</sect1>
<sect1 id="zoom.events"><title>Events</title>
with events.
</para>
<synopsis>
- int ZOOM_event (int no, ZOOM_connection *cs);
+ int ZOOM_event(int no, ZOOM_connection *cs);
</synopsis>
<para>
The <function>ZOOM_event</function> executes pending events for
projects / yaz-moved-to-github.git / blobdiff