OsEvaluator (Quartz Parent POM 2.0.1 API)

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org.quartz.locality.constraint.evaluator Class OsEvaluator

java.lang.Object
  org.quartz.locality.constraint.evaluator.OsEvaluator

All Implemented Interfaces:: Evaluator<OsConstraint>, PersistentEvaluator<OsConstraint,Set<String>>

public class OsEvaluator
extends Object
implements PersistentEvaluator<OsConstraint,Set<String>>

Evaluator that persists all nodes' Operation Systems

Author:: Alex Snaps

Constructor Summary
`OsEvaluator()`

Method Summary
`void`	`initialize(String nodeName, ConcurrentMap<String,Set<String>> storage)` During its bootstrapping, the `JobStore` will call this method once on each node, passing a Clustered `ConcurrentMap` instance and the local instanceId of the `Scheduler`
`boolean`	`matches(OsConstraint constraint)` Evaluates the constraint against local node.
`List<String>`	`suitedNodes(OsConstraint constraint)` Returns a list of best suited node (instanceId) based on the constraint
`void`	`verify(OsConstraint constraint)` Verifies the validity of a constraint.

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

Constructor Detail

OsEvaluator

public OsEvaluator()

Method Detail

matches

public boolean matches(OsConstraint constraint)

Evaluates the constraint against local node.

Specified by:: matches in interface Evaluator<OsConstraint>

Parameters:: constraint - The constraint to evaluate
Returns:: true if local node is a match
See Also:: Constraint#matches(Object)

suitedNodes

public List<String> suitedNodes(OsConstraint constraint)

Returns a list of best suited node (instanceId) based on the constraint

Specified by:: suitedNodes in interface Evaluator<OsConstraint>

Parameters:: constraint - To find best suited nodes for
Returns:: List of best suited Quartz instanceId

verify

public void verify(OsConstraint constraint)

Verifies the validity of a constraint. Throws exception should the constraint fail to validate.

Specified by:: verify in interface Evaluator<OsConstraint>

Parameters:: constraint - The constraint to validate

initialize

public void initialize(String nodeName,
                       ConcurrentMap<String,Set<String>> storage)

During its bootstrapping, the JobStore will call this method once on each node, passing a Clustered ConcurrentMap instance and the local instanceId of the Scheduler

Specified by:: initialize in interface PersistentEvaluator<OsConstraint,Set<String>>

Parameters:: nodeName - Local instanceId; storage - the shared persistent storage for the Evaluator