Scheduler (storm-crawler-core 2.8 API)

java.lang.Object
- com.digitalpebble.stormcrawler.persistence.Scheduler

Direct Known Subclasses:: DefaultScheduler

public abstract class Scheduler
extends Object

Field Summary

Fields
Modifier and Type Field Description

static String schedulerClassParamName
Class to use for Scheduler.

Constructor Summary

Constructors
Constructor Description

Scheduler()

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`static Scheduler`	`getInstance(Map<String,Object> stormConf)`	Returns a Scheduler instance based on the configuration *
`protected abstract void`	`init(Map<String,Object> stormConf)`	Configuration of the scheduler based on the config.
`abstract Optional<Date>`	`schedule(Status status, Metadata metadata)`	Returns an optional Date indicating when the document should be refetched next, based on its status.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - schedulerClassParamName
```
public static final String schedulerClassParamName
```
    Class to use for Scheduler. Must extend the class Scheduler.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - Scheduler
```
public Scheduler()
```
- Method Detail
  - init
```
protected abstract void init(Map<String,Object> stormConf)
```
    Configuration of the scheduler based on the config. Should be called by Scheduler.getInstance() *
  - schedule
```
public abstract Optional<Date> schedule(Status status,
                                        Metadata metadata)
```
    Returns an optional Date indicating when the document should be refetched next, based on its status. It is empty if the URL should never be refetched.
  - getInstance
```
public static Scheduler getInstance(Map<String,Object> stormConf)
```
    Returns a Scheduler instance based on the configuration *