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05348c5fc5
- now all write operations appear to work correctly with PostgeSQL 7.0
- all write operations have been made transactional (atomic writes to
entries are committed separately only in case of complete^1 success
while all other operations are rolled-back by default)
- more cleanup and handling of exceptional conditions
TODO:
- deen to check with different databases and more up to date versions
of both unixODBC and PostgreSQL.
^1: attribute add/modify/delete operations silently succeed if the
appropriate add/delete proc does not exist for each attribute;
this may be correct to hide undesired/unimplemented correspondence
between LDAP and SQL databases; however, a more appropriate
LDAP behavior would be a failure with LDAP_UNAVAILABLE if a
single write operation cannot be executed for such reason
83 lines
2.7 KiB
C
83 lines
2.7 KiB
C
#ifndef __BACKSQL_SCHEMA_MAP_H__
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#define __BACKSQL_SCHEMA_MAP_H__
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/*
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* Copyright 1999, Dmitry Kovalev <mit@openldap.org>, All rights reserved.
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*
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* Redistribution and use in source and binary forms are permitted only
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* as authorized by the OpenLDAP Public License. A copy of this
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* license is available at http://www.OpenLDAP.org/license.html or
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* in file LICENSE in the top-level directory of the distribution.
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*/
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typedef struct {
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struct berval name;
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ObjectClass *oc;
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char *keytbl;
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char *keycol;
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/* expected to return keyval of newly created entry */
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char *create_proc;
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/* supposed to expect keyval as parameter and delete
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* all the attributes as well */
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char *delete_proc;
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/* flags whether delete_proc is a function (whether back-sql
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* should bind first parameter as output for return code) */
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int expect_return;
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unsigned long id;
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Avlnode *attrs;
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} backsql_oc_map_rec;
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typedef struct {
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/* literal name of corresponding LDAP attribute type */
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struct berval name;
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AttributeDescription *ad;
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char *from_tbls;
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char *join_where;
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char *sel_expr;
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/* supposed to expect 2 binded values: entry keyval
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* and attr. value to add, like "add_name(?,?,?)" */
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char *add_proc;
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/* supposed to expect 2 binded values: entry keyval
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* and attr. value to delete */
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char *delete_proc;
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/* for optimization purposes attribute load query
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* is preconstructed from parts on schemamap load time */
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char *query;
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/* following flags are bitmasks (first bit used for add_proc,
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* second - for modify, third - for delete_proc) */
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/* order of parameters for procedures above;
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* 1 means "data then keyval", 0 means "keyval then data" */
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int param_order;
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/* flags whether one or more of procedures is a function
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* (whether back-sql should bind first parameter as output
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* for return code) */
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int expect_return;
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/* TimesTen */
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char *sel_expr_u;
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} backsql_at_map_rec;
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/* defines to support bitmasks above */
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#define BACKSQL_ADD 0x1
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#define BACKSQL_DEL 0x2
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#define BACKSQL_IS_ADD(x) ( BACKSQL_ADD & (x) )
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#define BACKSQL_IS_DEL(x) ( BACKSQL_DEL & (x) )
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#define BACKSQL_NCMP(v1,v2) ber_bvcmp((v1),(v2))
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int backsql_load_schema_map( backsql_info *si, SQLHDBC dbh );
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/* Deprecated */
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backsql_oc_map_rec *backsql_name2oc( backsql_info *si, struct berval *oc_name );
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backsql_oc_map_rec *backsql_oc2oc( backsql_info *si, ObjectClass *oc );
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backsql_oc_map_rec *backsql_id2oc( backsql_info *si, unsigned long id );
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/* Deprecated */
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backsql_at_map_rec *backsql_name2at( backsql_oc_map_rec *objclass,
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struct berval *at_name );
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backsql_at_map_rec *backsql_ad2at( backsql_oc_map_rec *objclass,
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AttributeDescription *ad );
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int backsql_destroy_schema_map( backsql_info *si );
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#endif /* __BACKSQL_SCHEMA_MAP_H__ */
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