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create table nflow_workflow (
id int not null primary key,
status varchar(32) not null,
type varchar(64) not null,
root_workflow_id int default null,
parent_workflow_id int default null,
parent_action_id int default null,
business_key varchar(64),
external_id varchar(64) not null,
state varchar(64) not null,
state_text varchar(128),
next_activation timestamp null,
external_next_activation timestamp null,
executor_id int,
retries int default 0 not null,
created timestamp default current_timestamp not null,
modified timestamp default current_timestamp not null,
executor_group varchar(64) not null,
workflow_signal int,
constraint nflow_workflow_uniq unique (type, external_id, executor_group),
constraint status_enum check (status in ('created', 'executing', 'inProgress', 'finished', 'manual'))
)
/
create index nflow_workflow_activation on nflow_workflow (next_activation)
/
create sequence nflow_workflow_id_seq
/
create or replace trigger nflow_workflow_insert
before insert on nflow_workflow
for each row
declare
begin
:new.id := nflow_workflow_id_seq.nextval;
end;
/
create or replace trigger nflow_workflow_update
before update on nflow_workflow
for each row
declare
begin
:new.modified := current_timestamp;
end;
/
create table nflow_workflow_action (
id int not null primary key,
workflow_id int not null,
executor_id int default -1 not null,
type varchar(64) not null,
state varchar(64) not null,
state_text varchar(128),
retry_no int not null,
execution_start timestamp not null,
execution_end timestamp not null,
foreign key (workflow_id) references nflow_workflow(id) on delete cascade,
constraint nflow_workflow_action_uniq unique (workflow_id, id),
constraint type_enum check (type in ('stateExecution', 'stateExecutionFailed', 'recovery', 'externalChange'))
)
/
create sequence nflow_workflow_action_id_seq
/
create or replace trigger nflow_workflow_action_insert
before insert on nflow_workflow_action
for each row
declare
begin
:new.id := nflow_workflow_id_seq.nextval;
end;
/
alter table nflow_workflow add constraint fk_workflow_parent
foreign key (parent_workflow_id, parent_action_id) references nflow_workflow_action (workflow_id, id) on delete cascade
/
create table nflow_workflow_state (
workflow_id int not null,
action_id int not null,
state_key varchar(64) not null,
state_value clob not null,
primary key (workflow_id, action_id, state_key),
foreign key (workflow_id) references nflow_workflow(id) on delete cascade
)
/
create table nflow_executor (
id int not null primary key,
host varchar(253) not null,
pid int not null,
executor_group varchar(64),
started timestamp default current_timestamp not null,
active timestamp not null,
expires timestamp not null,
stopped timestamp
)
/
create sequence nflow_executor_id_seq
/
create or replace trigger nflow_executor_insert
before insert on nflow_executor
for each row
declare
begin
:new.id := nflow_executor_id_seq.nextval;
end;
/
create table nflow_workflow_definition (
type varchar(64) not null,
definition_sha1 varchar(40) not null,
definition clob not null,
created timestamp default current_timestamp not null,
modified timestamp default current_timestamp not null,
modified_by int not null,
executor_group varchar(64) not null,
primary key (type, executor_group)
)
/
create or replace trigger nflow_workflow_def_update
before update on nflow_workflow_definition
for each row
declare
begin
:new.modified := current_timestamp;
end;
/
-- Archive tables
-- - no default values
-- - no triggers
-- - no auto increments
-- - same indexes and constraints as production tables
-- - remove recursive foreign keys
create table nflow_archive_workflow (
id int not null primary key,
status varchar(32) not null,
type varchar(64) not null,
root_workflow_id int,
parent_workflow_id int,
parent_action_id int,
business_key varchar(64),
external_id varchar(64) not null,
state varchar(64) not null,
state_text varchar(128),
next_activation timestamp,
external_next_activation timestamp,
executor_id int,
retries int not null,
created timestamp not null,
modified timestamp not null,
executor_group varchar(64) not null,
workflow_signal int,
constraint nflow_archive_workflow_uniq unique (type, external_id, executor_group)
)
/
create table nflow_archive_workflow_action (
id int not null primary key,
workflow_id int not null,
executor_id int not null,
type varchar(64) not null,
state varchar(64) not null,
state_text varchar(128),
retry_no int not null,
execution_start timestamp not null,
execution_end timestamp not null,
foreign key (workflow_id) references nflow_archive_workflow(id) on delete cascade,
constraint nflow_archive_wf_action_uniq unique (workflow_id, id)
)
/
create table nflow_archive_workflow_state (
workflow_id int not null,
action_id int not null,
state_key varchar(64) not null,
state_value clob not null,
primary key (workflow_id, action_id, state_key),
foreign key (workflow_id) references nflow_archive_workflow(id) on delete cascade
)
/
