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WebLogic Server 6.0sp2 API Reference

## weblogic.time.common
Interface ScheduleDef

public interface ScheduleDef
extends Schedulable

Extended interface for user-written schedulers. A ScheduleDef object differs from a Schedulable in that it can be initialized with a ParamSet, and has access to WebLogic services. This makes it particularly suitable for T3Clients that instantiate scheduled triggers on the WebLogic Server. Since the object is constructed remotely via its default constructor, any initial state information must be supplied via the initialization method `scheduleInit()`. Parameters are supplied via the `weblogic.common.time.Scheduler` wrapper object.

Here's an example of a simple implementation of this interface.

    package tutorial.time;
     import weblogic.common.*;
     import java.util.*;

     class TimeTest implements ScheduleDef, Triggerable {

     private int interval = 0;
     private T3ServicesDef services;

     public void setServices(T3ServicesDef services) {
       this.services = services;
     }

     public void scheduleInit(ParamSet ps) throws ParamSetException {
       interval = ps.getParam("interval").asInt();
     }

     public long schedule(long currentMillis) {
       return currentMillis + interval;
     }

     // Triggerable
     public void trigger() {
       System.out.println("trigger called");
     }

A ScheduleDef object can access other WebLogic services via the services stub passed to the user-defined `setServices()` method.

For more detailed information, read the Developers Guide, Using WebLogic Time services in the WebLogic Server documentation.

To set up a regularly repeating schedule, use the TimeRepeat object, a utility implementation of Schedulable, that is provided with this API.

Author:
  Copyright (c) 1996-97, WebLogic, Inc. All Rights Reserved., Copyright (c) 1999 by BEA WebXpress. All Rights Reserved.
  Copyright © 2001 BEA Systems, Inc. All Rights Reserved.
See Also:
  `Scheduler`, `Trigger`, `TimeServicesDef`, `TimeRepeat`

Method Summary
`void` | `scheduleInit(ParamSet params)` Passes a set of initialization parameters to the ScheduleDef object.
`void` | `setServices(T3ServicesDef services)` Sets the services stub, which allows runtime access to WebLogic services that may be accessed.

Methods inherited from interface weblogic.time.common.Schedulable
`schedule`

Method Detail

### setServices

    public void setServices(T3ServicesDef services)

  Sets the services stub, which allows runtime access to WebLogic services that may be accessed. Since this object is set at instantiation, the services object may reference either a client-side or a server-side implementation, depending upon the runtime context.

  Parameters:
    `services` - T3ServicesDef object

### scheduleInit

    public void scheduleInit(ParamSet params)
                      throws ParamSetException

  Passes a set of initialization parameters to the ScheduleDef object. Since dynamically loaded classes cannot pass arguments in a constructor, this method is used to pass registration parameters to the newly-constructed ScheduleDef object.

  Parameters:
    `ParamSet` - of name/value pairs
  Throws:
    ParamSetException - if the ParamSet cannot be found or is invalid

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