Java Doc for DecideRule.java in  » Web-Crawler » heritrix » org » archive » crawler » deciderules » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Web Crawler » heritrix » org.archive.crawler.deciderules 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


org.archive.crawler.settings.ModuleType
   org.archive.crawler.deciderules.DecideRule

All known Subclasses:   org.archive.crawler.deciderules.ConfiguredDecideRule,  org.archive.crawler.deciderules.BeanShellDecideRule,  org.archive.crawler.deciderules.FilterDecideRule,  org.archive.crawler.deciderules.AcceptDecideRule,  org.archive.crawler.deciderules.DecideRuleSequence,  org.archive.crawler.deciderules.RejectDecideRule,
DecideRule
public class DecideRule extends ModuleType (Code)
Interface for rules which, given an object to evaluate, respond with a decision: DecideRule.ACCEPT , DecideRule.REJECT , or DecideRule.PASS . Rules return DecideRule.PASS by default.
author:
   gojomo
See Also:   org.archive.crawler.deciderules.DecideRuleSequence


Field Summary
final public static  StringACCEPT
    
final public static  StringPASS
    
final public static  StringREJECT
    

Constructor Summary
public  DecideRule(String name)
     Constructor.

Method Summary
public  ObjectdecisionFor(Object object)
     Make decision on passed object.
Parameters:
  object - Object to rule on.
public  CrawlControllergetController()
     Get the controller object.
public  voidkickUpdate()
     Respond to a settings update, refreshing any internal settings-derived state. This method gives implementors a chance to refresh internal state after a settings change.
public  ObjectsinglePossibleNonPassDecision(Object object)
     If this rule is "one-way" -- can only return a single possible decision other than PASS -- return that decision.

Field Detail
ACCEPT
final public static String ACCEPT(Code)



PASS
final public static String PASS(Code)



REJECT
final public static String REJECT(Code)




Constructor Detail
DecideRule
public DecideRule(String name)(Code)
Constructor.
Parameters:
  name - Name of this rule.




Method Detail
decisionFor
public Object decisionFor(Object object)(Code)
Make decision on passed object.
Parameters:
  object - Object to rule on. DecideRule.ACCEPT, DecideRule.REJECT, or DecideRule.PASS.



getController
public CrawlController getController()(Code)
Get the controller object. the controller object.



kickUpdate
public void kickUpdate()(Code)
Respond to a settings update, refreshing any internal settings-derived state. This method gives implementors a chance to refresh internal state after a settings change. Normally new settings are picked up w/o the need of work on the part of settings' clients but some facilities -- for example, Surt classes need to sort submissions into common-prefix-coalesced collection of Surt prefixes, or, settings changes that alter external file or seeds/directives references -- need to be flagged so they can take compensatory action.



singlePossibleNonPassDecision
public Object singlePossibleNonPassDecision(Object object)(Code)
If this rule is "one-way" -- can only return a single possible decision other than PASS -- return that decision. Otherwise return null. Most rules will be one-way.
Parameters:
  object - the one decision other than PASS this rule mightreturn, if there is only one



Methods inherited from org.archive.crawler.settings.ModuleType
public Type addElement(CrawlerSettings settings, Type type) throws InvalidAttributeValueException(Code)(Java Doc)
protected void listUsedFiles(List<String> list)(Code)(Java Doc)

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