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Copy pathpromises_ninja.type.body.sql
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promises_ninja.type.body.sql
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create or replace type body promise as
constructor function promise
return self as result
as
begin
self.promise_name := self.get_promise_name();
self.state := 'pending';
self.state_time := sysdate;
self.typeval := 0;
self.o_executor := null;
self.o_execute := 0;
self.chain_size := 0;
self.all_flag := 0;
self.race_flag := 0;
self.promise_class := null;
return;
end promise;
constructor function promise (
executor varchar2
, promise_class varchar2 default null
)
return self as result
as
begin
self.promise_name := self.get_promise_name();
self.state := 'pending';
self.state_time := sysdate;
self.typeval := 0;
self.o_executor := executor;
self.o_executor_typeval := 0;
self.o_execute := 0;
self.chain_size := 0;
self.all_flag := 0;
self.race_flag := 0;
self.promise_class := promise_class;
self.validate_p();
self.execute_promise();
return;
end promise;
constructor function promise (
executor varchar2
, executor_val number
, promise_class varchar2 default null
)
return self as result
as
begin
self.promise_name := self.get_promise_name();
self.state := 'pending';
self.state_time := sysdate;
self.typeval := 0;
self.o_executor := executor;
self.o_executor_typeval := 1;
self.o_executor_val := sys.anydata.convertnumber(executor_val);
self.o_execute := 0;
self.chain_size := 0;
self.all_flag := 0;
self.race_flag := 0;
self.promise_class := promise_class;
self.validate_p();
self.execute_promise();
return;
end promise;
constructor function promise (
executor varchar2
, executor_val varchar2
, promise_class varchar2 default null
)
return self as result
as
begin
self.promise_name := self.get_promise_name();
self.state := 'pending';
self.state_time := sysdate;
self.typeval := 0;
self.o_executor := executor;
self.o_executor_typeval := 2;
self.o_executor_val := sys.anydata.convertvarchar2(executor_val);
self.o_execute := 0;
self.chain_size := 0;
self.all_flag := 0;
self.race_flag := 0;
self.promise_class := promise_class;
self.validate_p();
self.execute_promise();
return;
end promise;
constructor function promise (
executor varchar2
, executor_val date
, promise_class varchar2 default null
)
return self as result
as
begin
self.promise_name := self.get_promise_name();
self.state := 'pending';
self.state_time := sysdate;
self.typeval := 0;
self.o_executor := executor;
self.o_executor_typeval := 4;
self.o_executor_val := sys.anydata.convertdate(executor_val);
self.o_execute := 0;
self.chain_size := 0;
self.all_flag := 0;
self.race_flag := 0;
self.promise_class := promise_class;
self.validate_p();
self.execute_promise();
return;
end promise;
member procedure validate_p (
self in out nocopy promise
)
as
l_function_exists number;
l_function_input all_arguments%rowtype;
l_function_output all_arguments%rowtype;
begin
if self.o_executor != 'E_PROMISE' then
-- We have a normal function as executor. Check that it exists.
select count(*)
into l_function_exists
from all_objects
where object_name = upper(self.o_executor)
and object_type = 'FUNCTION';
if l_function_exists > 0 then
-- Function exists
-- Check input type, if called with input val.
if self.o_executor_typeval > 0 then
begin
select *
into l_function_input
from all_arguments
where object_name = upper(self.o_executor)
and in_out = 'IN'
and position = 1;
if l_function_input.data_type = 'NUMBER' and self.o_executor_typeval != 1 then
raise_application_error(-20042, 'promise executor, input parameter mismatch');
elsif l_function_input.data_type = 'VARCHAR2' and self.o_executor_typeval != 2 then
raise_application_error(-20042, 'promise executor, input parameter mismatch');
elsif l_function_input.data_type = 'DATE' and self.o_executor_typeval != 4 then
raise_application_error(-20042, 'promise executor, input parameter mismatch');
end if;
exception
when others then
raise_application_error(-20042, 'promise executor, input parameter mismatch');
end;
end if;
-- Check and set the output type.
select *
into l_function_output
from all_arguments
where object_name = upper(self.o_executor)
and in_out = 'OUT';
if l_function_output.data_type = 'NUMBER' then
self.typeval := 1;
elsif l_function_output.data_type = 'VARCHAR2' then
self.typeval := 2;
elsif l_function_output.data_type = 'DATE' then
self.typeval := 4;
else
raise_application_error(-20042, 'only number, varchar2 or date output currently supported for promises');
end if;
else
raise_application_error(-20042, 'promise executor invalid privileges or does not exist');
end if;
else
-- We have a promise. Add self to chain with correct dependencies.
null;
end if;
-- We have reached the end of the validation procedure.
-- Enable execution of promise.
self.o_execute := 1;
end validate_p;
member function get_promise_name
return varchar2
as
begin
return 'P_' || substr(sys_guid(), 1, 26);
end get_promise_name;
member function on_is_function(
function_name varchar2
) return boolean
as
l_exists_and_is_func number;
begin
select count(*)
into l_exists_and_is_func
from all_objects
where object_name = upper(function_name)
and object_type = 'FUNCTION';
if l_exists_and_is_func > 0 then
return true;
else
return false;
end if;
end on_is_function;
member procedure then_p (
self in out promise
, ref_promise in out promise
, on_fullfilled varchar2 default null
, on_rejected varchar2 default null
)
as
begin
if self.chain_size = 0 then
ref_promise := self.then_f(on_fullfilled, on_rejected);
else
if ref_promise is null then
-- Attach equal thenable to original promise (will start independent chain)
ref_promise := self.then_f(on_fullfilled, on_rejected);
else
-- Add to chain of promises.
ref_promise := ref_promise.then_f(on_fullfilled, on_rejected);
end if;
end if;
end then_p;
member function catch (
self in out promise
, on_rejected varchar2
)
return promise
as
begin
return self.then_f(null, on_rejected);
end catch;
member function then_f (
self in out promise
, on_fullfilled varchar2 default null
, on_rejected varchar2 default null
)
return promise
as
new_promise promise;
l_anonymous_plsql_block varchar2(32000);
l_thenable_result promise_result;
begin
-- First check if promise has been validated.
-- Do not allow to thenable a promise that has not been validated to be executed.
if self.o_execute > 0 then
-- Initiate the new promise that we will return.
new_promise := promise();
-- Poll for the answer and set if available.
self.check_and_set_value;
self.chain_size := self.chain_size + 1;
if self.state = 'fulfilled' then
-- We already have the final result of the promise.
-- Add new job directly, with promise value only if on_fulfilled is a real function.
if on_fullfilled is not null then
if self.on_is_function(on_fullfilled) then
case self.typeval
when 1 then new_promise := promise(on_fullfilled, sys.anydata.accessNumber(self.val), self.promise_class);
when 2 then new_promise := promise(on_fullfilled, sys.anydata.accessVarchar2(self.val), self.promise_class);
when 4 then new_promise := promise(on_fullfilled, sys.anydata.accessDate(self.val), self.promise_class);
end case;
else
-- on_fulfilled is not a function. Standard says ignore.
-- Save space for future changes to on_fulfilled handling.
null;
end if;
end if;
elsif self.state = 'rejected' then
-- Check if on_rejected is set.
if on_rejected is not null then
if self.on_is_function(on_rejected) then
case self.typeval
when 1 then new_promise := promise(on_rejected, sys.anydata.accessNumber(self.val), self.promise_class);
when 2 then new_promise := promise(on_rejected, sys.anydata.accessVarchar2(self.val), self.promise_class);
when 4 then new_promise := promise(on_rejected, sys.anydata.accessDate(self.val), self.promise_class);
end case;
else
-- on_rejected is not a function. Ignore for now
-- save space for future handling.
null;
end if;
end if;
else
-- We are in pending and so the "on" triggers will have to poll for results.
-- Here we should setup a job for either on_fulfilled, on_rejected or both.
-- (One physical job, with a compounded block to handle all).
l_anonymous_plsql_block := self.get_then_job_code(on_fullfilled, on_rejected, new_promise.promise_name);
-- TODO this is where we should put the new promise as a promise result in the asynch queue but with status pending
-- TODO and the thenable code in the promise result object, along with the order and thenable status.
-- TODO Lookup promise result valtype here and set correctly in new_promise.
l_thenable_result := promise_result(new_promise.promise_name, 'pending', 1, null, self.promise_class, self.promise_name, self.chain_size, l_anonymous_plsql_block);
self.result_enqueue('promise_async_queue', l_thenable_result);
-- When we have built the anonymous plsql and enqueued the message
-- we have also automatically validated the new promise. Set to validated.
new_promise.o_execute := 1;
end if;
new_promise.typeval := get_function_return(on_fullfilled);
return new_promise;
else
raise_application_error(-20042, 'cannot call then on promise that is not validated');
end if;
end then_f;
member procedure all_p (
self in out promise
, promise_list sys.anydata
, on_fullfilled varchar2 default null
, on_rejected varchar2 default null
)
as
begin
-- Ok we are receiving a list of promises. And only if all the promises are fulfilled this promise will be fulfilled.
if instr(promise_list.gettypename(), '.PROMISES_LIST_OBJ') > 1 then
-- Check if we have already initialized this promise. Currently not supported to use all on already initialized.
if self.o_execute = 0 then
self.typeval := 84;
self.o_executor_typeval := 42;
self.all_flag := 1;
self.race_flag := 0;
self.o_executor_val := promise_list;
else
raise_application_error(-20042, 'cannot call all on already initialized promise');
end if;
else
raise_application_error(-20042, 'all can only be called with the PROMISES_LIST_OBJ object inside the anydata');
end if;
end all_p;
member procedure race_p (
self in out promise
, promise_list sys.anydata
, on_fullfilled varchar2 default null
, on_rejected varchar2 default null
)
as
begin
-- Ok we are receiving a list of promises. And only if all the promises are fulfilled this promise will be fulfilled.
if instr(promise_list.gettypename(), '.PROMISES_LIST_OBJ') > 1 then
-- Check if we have already initialized this promise. Currently not supported to use all on already initialized.
if self.o_execute = 0 then
self.typeval := 84;
self.race_flag := 1;
self.all_flag := 0;
self.o_executor_val := promise_list;
else
raise_application_error(-20042, 'cannot call race on already initialized promise');
end if;
else
raise_application_error(-20042, 'race can only be called with the PROMISES_LIST_OBJ object inside the anydata');
end if;
end race_p;
member procedure execute_promise(
self in out nocopy promise
)
as
l_anonymous_plsql_block varchar2(32000);
begin
if self.o_execute > 0 then
l_anonymous_plsql_block := self.get_exec_job_code;
dbms_scheduler.create_job(
job_name => self.promise_name || '_J'
, job_type => 'PLSQL_BLOCK'
, job_action => l_anonymous_plsql_block
, job_class => self.promise_class
, enabled => true
);
else
raise_application_error(-20042, 'cannot execute unvalidated promise');
end if;
end execute_promise;
member procedure check_and_set_value(self in out promise)
as
l_promise_result promise_result;
l_dequeue_options dbms_aq.dequeue_options_t;
l_message_properties dbms_aq.message_properties_t;
l_first_dequeue boolean := true;
l_message_handle raw(16);
-- For all promises.
l_resolving_promise promises_list_obj;
l_resolving_promise_o promise;
l_resolved_count number := 0;
l_rejected_count number := 0;
-- For race promises
l_race_compare_earliest date := sysdate;
l_race_earliest date := l_race_compare_earliest;
l_race_earliest_promise promise;
-- Exceptions
l_exception_timeout exception;
pragma exception_init(l_exception_timeout, -25228);
begin
if self.state = 'pending' then
if self.all_flag = 1 or self.race_flag = 1 then
if self.o_executor_val.getObject(l_resolving_promise) = dbms_types.success then
for i in 1..l_resolving_promise.promise_list.count loop
if l_resolving_promise.promise_list(i).getObject(l_resolving_promise_o) = dbms_types.success then
l_resolving_promise_o.check_and_set_value;
if l_resolving_promise_o.state = 'fulfilled' then
if l_resolving_promise_o.state_time < l_race_earliest then
l_race_earliest := l_resolving_promise_o.state_time;
l_race_earliest_promise := l_resolving_promise_o;
end if;
l_resolved_count := l_resolved_count + 1;
elsif l_resolving_promise_o.state = 'rejected' then
if l_resolving_promise_o.state_time < l_race_earliest then
l_race_earliest := l_resolving_promise_o.state_time;
l_race_earliest_promise := l_resolving_promise_o;
end if;
l_rejected_count := l_rejected_count + 1;
end if;
l_resolving_promise.promise_list(i) := sys.anydata.convertObject(l_resolving_promise_o);
self.o_executor_val := sys.anydata.convertObject(l_resolving_promise);
end if;
end loop;
if self.race_flag = 1 then
if l_race_earliest < l_race_compare_earliest then
if l_race_earliest_promise.state = 'rejected' then
self.state := 'rejected';
else
self.state := 'fulfilled';
end if;
self.typeval := l_race_earliest_promise.typeval;
self.val := l_race_earliest_promise.val;
end if;
elsif self.all_flag = 1 then
if l_rejected_count > 0 and (l_rejected_count + l_resolved_count) = l_resolving_promise.promise_list.count then
self.state := 'rejected';
self.typeval := 84;
self.val := self.o_executor_val;
elsif l_resolved_count = l_resolving_promise.promise_list.count then
self.state := 'fulfilled';
self.typeval := 84;
self.val := self.o_executor_val;
end if;
end if;
end if;
else
loop
-- non-destructive dequeue
l_dequeue_options.dequeue_mode := dbms_aq.browse;
l_dequeue_options.wait := dbms_aq.no_wait;
l_dequeue_options.visibility := dbms_aq.immediate;
if l_first_dequeue then
l_dequeue_options.navigation := dbms_aq.first_message;
else
l_dequeue_options.navigation := dbms_aq.next_message;
end if;
-- dequeue
dbms_aq.dequeue(
queue_name => 'promise_async_queue'
, dequeue_options => l_dequeue_options
, message_properties => l_message_properties
, payload => l_promise_result
, msgid => l_message_handle
);
if l_first_dequeue then
l_first_dequeue := false;
end if;
if l_promise_result.promise_name = self.promise_name then
-- Set value or rejection. We have the result.
if l_promise_result.promise_result = 'SUCCESS' then
-- Set state to fulfilled and set the result value.
-- self.set_state('fulfilled', l_promise_result.promise_value);
self.state := 'fulfilled';
self.state_time := l_message_properties.enqueue_time;
self.val := l_promise_result.promise_value;
self.typeval := l_promise_result.promise_typeval;
elsif l_promise_result.promise_result = 'FAILURE' then
-- Set state to rejected and set the rejection result.
self.state := 'rejected';
self.state_time := l_message_properties.enqueue_time;
self.val := l_promise_result.promise_value;
self.typeval := l_promise_result.promise_typeval;
end if;
end if;
end loop;
end if;
end if;
exception
when l_exception_timeout then
null;
end check_and_set_value;
member procedure result_enqueue(
self in out promise
, queue_name varchar2
, queue_message promise_result
)
as
l_enqueue_options dbms_aq.enqueue_options_t;
l_message_properties dbms_aq.message_properties_t;
l_message_recipients dbms_aq.aq$_recipient_list_t;
l_message_handle raw(16);
begin
l_message_properties.expiration := promises_ninja.promise_lifetime;
dbms_aq.enqueue(
queue_name => queue_name
, enqueue_options => l_enqueue_options
, message_properties => l_message_properties
, payload => queue_message
, msgid => l_message_handle
);
commit;
end result_enqueue;
member procedure job_enqueue(
self in out promise
, queue_name varchar2
, queue_message promise_job_notify
)
as
l_enqueue_options dbms_aq.enqueue_options_t;
l_message_properties dbms_aq.message_properties_t;
l_message_recipients dbms_aq.aq$_recipient_list_t;
l_message_handle raw(16);
begin
l_message_properties.expiration := promises_ninja.promise_lifetime;
dbms_aq.enqueue(
queue_name => queue_name
, enqueue_options => l_enqueue_options
, message_properties => l_message_properties
, payload => queue_message
, msgid => l_message_handle
);
commit;
end job_enqueue;
member procedure resolve(
self in out promise
, resolved_val promise
, all_idx number default null
)
as
l_resolving_promise promises_list_obj;
l_resolving_promise_o promise;
begin
if self.state = 'pending' then
if resolved_val.state = 'fulfilled' then
if all_idx is not null and self.all_flag = 1 then
if self.o_executor_val.getObject(l_resolving_promise) = dbms_types.success then
if l_resolving_promise.promise_list.exists(all_idx) then
if l_resolving_promise.promise_list(all_idx).getObject(l_resolving_promise_o) = dbms_types.success then
l_resolving_promise_o.resolve(resolved_val);
l_resolving_promise.promise_list(all_idx) := sys.anydata.convertObject(l_resolving_promise_o);
self.o_executor_val := sys.anydata.convertObject(l_resolving_promise);
end if;
end if;
end if;
else
self.o_execute := 1;
self.typeval := resolved_val.typeval;
self.val := resolved_val.val;
self.state := 'fulfilled';
self.result_enqueue('promise_async_queue', promise_result(self.promise_name, 'SUCCESS', self.typeval, self.val, self.promise_class, null, null, null));
self.job_enqueue('promise_job_queue', promise_job_notify(self.promise_name, 'SUCCESS'));
end if;
elsif resolved_val.state = 'rejected' then
raise_application_error(-20042, 'cannot resolve a promise with another rejected promise');
else
raise_application_error(-20042, 'resolving by pending promises not supported as of now');
end if;
else
raise_application_error(-20042, 'promises cannot be resolved if already resolved or rejected');
end if;
end resolve;
member procedure resolve(
self in out promise
, resolved_val number
, all_idx number default null
)
as
l_resolving_promise promises_list_obj;
l_resolving_promise_o promise;
begin
if self.state = 'pending' then
if all_idx is not null and self.all_flag = 1 then
if self.o_executor_val.getObject(l_resolving_promise) = dbms_types.success then
if l_resolving_promise.promise_list.exists(all_idx) then
if l_resolving_promise.promise_list(all_idx).getObject(l_resolving_promise_o) = dbms_types.success then
l_resolving_promise_o.resolve(resolved_val);
l_resolving_promise.promise_list(all_idx) := sys.anydata.convertObject(l_resolving_promise_o);
self.o_executor_val := sys.anydata.convertObject(l_resolving_promise);
end if;
end if;
end if;
else
self.o_execute := 1;
self.state := 'fulfilled';
self.typeval := 1;
self.val := sys.anydata.convertnumber(resolved_val);
self.result_enqueue('promise_async_queue', promise_result(self.promise_name, 'SUCCESS', self.typeval, self.val, self.promise_class, null, null, null));
self.job_enqueue('promise_job_queue', promise_job_notify(self.promise_name, 'SUCCESS'));
end if;
else
raise_application_error(-20042, 'promises cannot be resolved if already resolved or rejected');
end if;
end resolve;
member procedure resolve(
self in out promise
, resolved_val varchar2
, all_idx number default null
)
as
l_resolving_promise promises_list_obj;
l_resolving_promise_o promise;
begin
if self.state = 'pending' then
if all_idx is not null and self.all_flag = 1 then
if self.o_executor_val.getObject(l_resolving_promise) = dbms_types.success then
if l_resolving_promise.promise_list.exists(all_idx) then
if l_resolving_promise.promise_list(all_idx).getObject(l_resolving_promise_o) = dbms_types.success then
l_resolving_promise_o.resolve(resolved_val);
l_resolving_promise.promise_list(all_idx) := sys.anydata.convertObject(l_resolving_promise_o);
self.o_executor_val := sys.anydata.convertObject(l_resolving_promise);
end if;
end if;
end if;
else
self.o_execute := 1;
self.state := 'fulfilled';
self.typeval := 2;
self.val := sys.anydata.convertvarchar2(resolved_val);
self.result_enqueue('promise_async_queue', promise_result(self.promise_name, 'SUCCESS', self.typeval, self.val, self.promise_class, null, null, null));
self.job_enqueue('promise_job_queue', promise_job_notify(self.promise_name, 'SUCCESS'));
end if;
else
raise_application_error(-20042, 'promises cannot be resolved if already resolved or rejected');
end if;
end resolve;
member procedure resolve(
self in out promise
, resolved_val date
, all_idx number default null
)
as
l_resolving_promise promises_list_obj;
l_resolving_promise_o promise;
begin
if self.state = 'pending' then
if all_idx is not null and self.all_flag = 1 then
if self.o_executor_val.getObject(l_resolving_promise) = dbms_types.success then
if l_resolving_promise.promise_list.exists(all_idx) then
if l_resolving_promise.promise_list(all_idx).getObject(l_resolving_promise_o) = dbms_types.success then
l_resolving_promise_o.resolve(resolved_val);
l_resolving_promise.promise_list(all_idx) := sys.anydata.convertObject(l_resolving_promise_o);
self.o_executor_val := sys.anydata.convertObject(l_resolving_promise);
end if;
end if;
end if;
else
self.o_execute := 1;
self.state := 'fulfilled';
self.typeval := 4;
self.val := sys.anydata.convertdate(resolved_val);
self.result_enqueue('promise_async_queue', promise_result(self.promise_name, 'SUCCESS', self.typeval, self.val, self.promise_class, null, null, null));
self.job_enqueue('promise_job_queue', promise_job_notify(self.promise_name, 'SUCCESS'));
end if;
else
raise_application_error(-20042, 'promises cannot be resolved if already resolved or rejected');
end if;
end resolve;
member procedure reject(
self in out promise
, rejection varchar2
, all_idx number default null
)
as
l_resolving_promise promises_list_obj;
l_resolving_promise_o promise;
begin
if self.state = 'pending' then
if all_idx is not null and self.all_flag = 1 then
if self.o_executor_val.getObject(l_resolving_promise) = dbms_types.success then
if l_resolving_promise.promise_list.exists(all_idx) then
if l_resolving_promise.promise_list(all_idx).getObject(l_resolving_promise_o) = dbms_types.success then
l_resolving_promise_o.reject(rejection);
l_resolving_promise.promise_list(all_idx) := sys.anydata.convertObject(l_resolving_promise_o);
self.o_executor_val := sys.anydata.convertObject(l_resolving_promise);
end if;
end if;
end if;
else
self.o_execute := 1;
self.state := 'rejected';
self.typeval := 2;
self.val := sys.anydata.convertvarchar2(rejection);
self.result_enqueue('promise_async_queue', promise_result(self.promise_name, 'FAILURE', self.typeval, self.val, self.promise_class, null, null, null));
self.job_enqueue('promise_job_queue', promise_job_notify(self.promise_name, 'FAILURE'));
end if;
else
raise_application_error(-20042, 'promises cannot be rejected if already resolved or rejected');
end if;
end reject;
member function getvalue(self in out promise)
return sys.anydata
as
begin
self.check_and_set_value;
if self.state = 'pending' then
return sys.anydata.convertvarchar2(null);
elsif self.state in ('rejected', 'fulfilled') then
-- We can return the value. We will never change once we are in this state.
return self.val;
else
-- Dont know what happened here.
raise_application_error(-20042, 'promise in invalid state: ' || self.state);
end if;
end getvalue;
member function getvalue_number(self in out promise)
return number
as
l_ret_val number;
begin
self.check_and_set_value;
if self.typeval = 1 then
if self.state = 'pending' then
l_ret_val := null;
else
if self.all_flag != 1 then
l_ret_val := sys.anydata.accessNumber(self.val);
else
raise_application_error(-20042, 'getvalue_number not supported for promise with all method called');
end if;
end if;
return l_ret_val;
else
raise_application_error(-20042, 'promise value not a number');
end if;
end getvalue_number;
member function getvalue_varchar(self in out promise)
return varchar2
as
l_ret_val varchar2(32000);
begin
self.check_and_set_value;
if self.typeval = 2 then
if self.state = 'pending' then
l_ret_val := null;
else
if self.all_flag != 1 then
l_ret_val := sys.anydata.accessVarchar2(self.val);
else
raise_application_error(-20042, 'getvalue_varchar not supported for promise with all method called');
end if;
end if;
return l_ret_val;
else
raise_application_error(-20042, 'promise value not a varchar2');
end if;
end getvalue_varchar;
member function getvalue_date(self in out promise)
return date
as
l_ret_val date;
begin
self.check_and_set_value;
if self.typeval = 4 then
if self.state = 'pending' then
l_ret_val := null;
else
if self.all_flag != 1 then
l_ret_val := sys.anydata.accessDate(self.val);
else
raise_application_error(-20042, 'getvalue_date not supported for promise with all method called');
end if;
end if;
return l_ret_val;
else
raise_application_error(-20042, 'promise value not a date');
end if;
end getvalue_date;
member function getanyvalue(self in out promise)
return varchar2
as
l_ret_val varchar2(4000);
l_num number;
l_date date;
l_extracted_val sys.anydata;
begin
self.check_and_set_value;
if self.state = 'pending' then
l_ret_val := null;
else
l_extracted_val := self.val;
case l_extracted_val.gettypename
when 'SYS.NUMBER' then
if (l_extracted_val.getNumber(l_num) = dbms_types.success ) then l_ret_val := l_num; end if;
when 'SYS.DATE' then
if (l_extracted_val.getDate(l_date) = dbms_types.success ) then l_ret_val := l_date; end if;
when 'SYS.VARCHAR2' then
if (l_extracted_val.getVarchar2(l_ret_val) = dbms_types.success ) then null; end if;
else
l_ret_val := '** unknown value type **';
end case;
end if;
return l_ret_val;
end getanyvalue;
member function get_exec_job_code
return varchar2
as
l_anonymous_plsql_block varchar2(32000);
begin
l_anonymous_plsql_block := 'declare
l_fe varchar2(4000);
l_eo dbms_aq.enqueue_options_t;
l_mp dbms_aq.message_properties_t;
l_mh raw(16);
l_qm promise_result;
l_jm promise_job_notify;
l_pr ';
if self.typeval = 1 then
l_anonymous_plsql_block := l_anonymous_plsql_block || 'number;';
elsif self.typeval = 2 then
l_anonymous_plsql_block := l_anonymous_plsql_block || 'varchar2(32000);';
elsif self.typeval = 4 then
l_anonymous_plsql_block := l_anonymous_plsql_block || 'date;';
end if;
if self.o_executor_typeval > 0 then