birt gs1 128

birt ean 128

birt gs1 128

birt ean 128

birt ean 128,
birt gs1 128,

birt ean 128,
birt gs1 128,
birt gs1 128,
birt gs1 128,
birt gs1 128,
birt ean 128,
birt gs1 128,
birt gs1 128,

birt gs1 128,
birt gs1 128,
birt ean 128,
birt ean 128,
birt ean 128,
birt ean 128,
birt gs1 128,
birt ean 128,
birt gs1 128,
birt gs1 128,
birt ean 128,
birt ean 128,
birt gs1 128,
birt ean 128,
birt gs1 128,
birt ean 128,
birt gs1 128,
birt gs1 128,
birt gs1 128,

birt gs1 128,
birt ean 128,
birt ean 128,
birt ean 128,
birt gs1 128,
birt gs1 128,
birt gs1 128,
birt gs1 128,
birt gs1 128,
birt ean 128,
birt ean 128,
birt ean 128,
birt gs1 128,
birt ean 128,
birt ean 128,
birt ean 128,
birt ean 128,
birt ean 128,
birt gs1 128,
birt ean 128,
birt gs1 128,
birt gs1 128,
birt ean 128,
birt gs1 128,
birt ean 128,
birt ean 128,
birt ean 128,
birt ean 128,
birt ean 128,
birt ean 128,
birt ean 128,
birt gs1 128,
birt ean 128,
birt ean 128,
birt gs1 128,
birt gs1 128,
birt gs1 128,
birt gs1 128,
birt gs1 128,
birt ean 128,
birt gs1 128,
birt gs1 128,
birt gs1 128,
birt gs1 128,
birt ean 128,
birt gs1 128,
birt gs1 128,
birt ean 128,
birt ean 128,
birt gs1 128,

Since Scheduler chains use Oracle Streams Rules Engine objects, a user must have both the CREATE JOB privilege and the Rules Engine privileges to create a chain. You can grant all the necessary Rules Engine privileges by using a statement like this, which grants the privileges to the user nina: SQL> BEGIN DBMS_RULE_ADM.GRANT_SYSTEM_PRIVILEGE(DBMS_RULE_ADM.CREATE_RULE_OBJ, 'nina'), DBMS_RULE_ADM.GRANT_SYSTEM_PRIVILEGE ( DBMS_RULE_ADM.CREATE_RULE_SET_OBJ, 'nina'), DBMS_RULE_ADM.GRANT_SYSTEM_PRIVILEGE ( DBMS_RULE_ADM.CREATE_EVALUATION_CONTEXT_OBJ, 'nina') END; Now that you have the necessary privileges, let s create a Scheduler chain called TEST_CHAIN using the CREATE_CHAIN procedure: SQL> BEGIN DBMS_SCHEDULER.CREATE_CHAIN ( chain_name => 'test_chain', rule_set_name => NULL, evaluation_interval => NULL, comments => NULL); END; Next, define the steps for the new chain using the DEFINE_CHAIN_STEP procedure. Note that a chain step can point to a program, an event, or another chain: SQL> BEGIN DBMS_SCHEDULER.DEFINE_CHAIN_STEP('test_chain', 'step1', 'program1'); DBMS_SCHEDULER.DEFINE_CHAIN_STEP('test_chain', 'step2', 'program2'); DBMS_SCHEDULER.DEFINE_CHAIN_STEP('test_chain', 'step3', 'program3'); END; Finally, to make the chain operative, you must add rules to the chain using the DEFINE_CHAIN_ RULE procedure. Chain rules determine when a step is run and specify the conditions under which a step is run. Usually, a rule specifies that a step be run based on the fulfillment of a specific condition. Here s an example: SQL> BEGIN DBMS_SCHEDULER.DEFINE_CHAIN_RULE('test_chain', 'TRUE', 'START step1'); DBMS_SCHEDULER.DEFINE_CHAIN_RULE('test_chain', 'step1 COMPLETED', 'Start step2, step3'); DBMS_SCHEDULER.DEFINE_CHAIN_RULE('test_chain', 'step2 COMPLETED AND step3 COMPLETED', 'END'); END; The first rule in the preceding example specifies that step1 be run, which means that the Scheduler will start program1. The second rule specifies that step2 (program2) and step3 (program3) be run if step1 has completed successfully ('step1 COMPLETED'). The final rule says that when step2 and step3 finish, the chain will end.

You must enable a chain before you can use it. Here s how to do so: SQL> BEGIN DBMS_SCHEDULER.ENABLE ('test_chain'); END;

When Sender needs to send a message to Recipient, it fires a SendMessage event. The recipient s name is the one set by the Initializer, so Sender doesn t know at compile time which object will get its messages. At startup time, the Initializer binds the Sender s SendMessage event to the Messaging object. The Messaging object manages an internal cache of name-address values. To determine the address for a given name, it accesses a directory service. Recipient names might be something like AccountingSystem; addresses might be something like accounting.mycompany.com or 192.168.10.2. Once the address is known, the Messaging object sends the message to the recipient. Listing 8-3 and Listing 8-4 show a simple example, in C# and VB .NET. Listing 8-3. Sending Messages Through a Messaging Object, in C# public class Initializer { public void InitializeSender(Sender theSender, Messaging theMessagingObject) { theSender.Recipient = "Accounting"; theSender.OnSendMessage += new Sender.SendMessageHandler(theMessagingObject.SendMessage); } } public class Sender { string recipient; public string Recipient { get {return recipient;} set {recipient = value;} } public void SendMessage() { // fire the OnSendMessage event FireSendMessage(Recipient, "Hello"); } public delegate void SendMessageHandler(string theName, string theMessage); public event SendMessageHandler OnSendMessage; public void FireSendMessage(string theName, string theMessage) { if (OnSendMessage == null) return; OnSendMessage(theName, theMessage); } } public class Messaging { Hashtable recipients = new Hashtable();

In order to run a job within a Scheduler chain, you must create a job with the JOB_TYPE attribute set to CHAIN, and the JOB_ACTION attribute pointing to the name of the particular chain you wish to use. Of course, this means that you must first create the chain. Here s the syntax for creating a job for a Scheduler chain: SQL> BEGIN DBMS_SCHEDULER.CREATE_JOB ( JOB_NAME => 'test_chain_job', JOB_TYPE => 'CHAIN', JOB_ACTION => 'test_chain', REPEAT_INTERVAL => 'freq=daily;byhour=13;byminute=0;bysecond=0', ENABLED => TRUE); END; You also have the option of using the RUN_CHAIN procedure to run a chain without creating a job first. The procedure will create a temporary job and immediately run the chain. Here s how you do this: SQL> BEGIN DBMS_SCHEDULER.RUN_CHAIN ( CHAIN_NAME => 'my_chain1', JOB_NAME => 'quick_chain_job', START_STEPS => 'my_step1, my_step2'); END; As with the other components of the Scheduler, there are procedures that enable you to drop a chain, drop rules from a chain, disable a chain, alter a chain, and so on. For the details, please refer to the section about the DBMS_SCHEDULER package in the Oracle manual, PL/SQL Packages and Types Reference.