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Package example

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asfernandes 2009-11-14 20:17:30 +00:00
parent 4a7f79bf68
commit c9b8938854
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3
doc/sql.extensions/README.packages.txt
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@ -121,5 +121,4 @@ Notes:
- UDFs (DECLARE EXTERNAL FUNCTION) are currently not supported inside packages.
Examples:
- To come.
- See examples/package.

84
examples/package/fbout-body.sql Normal file
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@ -0,0 +1,84 @@
/*
* The contents of this file are subject to the Initial
* Developer's Public License Version 1.0 (the "License");
* you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
* http://www.ibphoenix.com/main.nfs?a=ibphoenix&page=ibp_idpl.
*
* Software distributed under the License is distributed AS IS,
* WITHOUT WARRANTY OF ANY KIND, either express or implied.
* See the License for the specific language governing rights
* and limitations under the License.
*
* The Original Code was created by Adriano dos Santos Fernandes
* for the Firebird Open Source RDBMS project.
*
* Copyright (c) 2009 Adriano dos Santos Fernandes <adrianosf@gmail.com>
* and all contributors signed below.
*
* All Rights Reserved.
* Contributor(s): ______________________________________.
*/
set term !;
recreate package body fb$out
as
begin
procedure enable
as
begin
rdb$set_context('USER_SESSION', 'fb$out.enabled', '1');
end;
procedure disable
as
begin
rdb$set_context('USER_SESSION', 'fb$out.enabled', null);
end;
procedure put_line (line fb$out_type)
as
begin
if (rdb$get_context('USER_SESSION', 'fb$out.enabled') = '1') then
begin
in autonomous transaction do
begin
insert into fb$out_table (line_num, content)
values (next value for fb$out_seq, :line);
end
end
end;
procedure clear
as
begin
in autonomous transaction do
delete from fb$out_table;
end;
procedure get_lines returns (lines fb$out_type)
as
declare line fb$out_type;
begin
lines = '';
in autonomous transaction do
begin
for select content from fb$out_table order by line_num into line
do
begin
if (octet_length(lines) > 0) then
lines = lines || ascii_char(13) || ascii_char(10);
lines = lines || :line;
end
end
execute procedure clear;
end;
end!
set term ;!

54
examples/package/fbout-header.sql Normal file
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@ -0,0 +1,54 @@
/*
* The contents of this file are subject to the Initial
* Developer's Public License Version 1.0 (the "License");
* you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
* http://www.ibphoenix.com/main.nfs?a=ibphoenix&page=ibp_idpl.
*
* Software distributed under the License is distributed AS IS,
* WITHOUT WARRANTY OF ANY KIND, either express or implied.
* See the License for the specific language governing rights
* and limitations under the License.
*
* The Original Code was created by Adriano dos Santos Fernandes
* for the Firebird Open Source RDBMS project.
*
* Copyright (c) 2009 Adriano dos Santos Fernandes <adrianosf@gmail.com>
* and all contributors signed below.
*
* All Rights Reserved.
* Contributor(s): ______________________________________.
*/
create sequence fb$out_seq;
create domain fb$out_type as blob sub_type text character set utf8 not null;
create global temporary table fb$out_table (
line_num int,
content fb$out_type
) on commit preserve rows;
set term !;
create or alter package fb$out
as
begin
procedure enable;
procedure disable;
procedure put_line (line fb$out_type);
procedure clear;
procedure get_lines returns (lines fb$out_type);
end!
set term ;!
grant all on table fb$out_table to package fb$out;
grant execute on package fb$out to public;

67
examples/package/fbout-test.sql Normal file
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@ -0,0 +1,67 @@
/*
* The contents of this file are subject to the Initial
* Developer's Public License Version 1.0 (the "License");
* you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
* http://www.ibphoenix.com/main.nfs?a=ibphoenix&page=ibp_idpl.
*
* Software distributed under the License is distributed AS IS,
* WITHOUT WARRANTY OF ANY KIND, either express or implied.
* See the License for the specific language governing rights
* and limitations under the License.
*
* The Original Code was created by Adriano dos Santos Fernandes
* for the Firebird Open Source RDBMS project.
*
* Copyright (c) 2009 Adriano dos Santos Fernandes <adrianosf@gmail.com>
* and all contributors signed below.
*
* All Rights Reserved.
* Contributor(s): ______________________________________.
*/
/*
* This example demonstrate packages creating and using FB$OUT, a package that write and read
* messages in a session and is suitable for debug PSQL code.
*/
set names utf8;
create database 'test.fdb';
input 'fbout-header.sql';
input 'fbout-body.sql';
set term !;
create procedure test
as
declare i integer;
begin
execute procedure fb$out.put_line ('um');
execute procedure fb$out.put_line ('dois');
execute procedure fb$out.enable;
execute procedure fb$out.put_line ('três');
execute procedure fb$out.put_line ('quatro');
execute procedure fb$out.disable;
execute procedure fb$out.put_line ('cinco');
execute procedure fb$out.enable;
execute procedure fb$out.put_line ('seis');
begin
i = 'a';
execute procedure fb$out.put_line ('sete');
when any do
begin
end
end
end!
set term ;!
grant execute on procedure test to public;
execute procedure test;
execute procedure fb$out.get_lines;
execute procedure fb$out.get_lines;