AlertConditionEvaluatorRepositoryImpl (Hyperic HQ Plugin API)
Keywords: org.hyperic.hq.events.server.session.AlertConditionEvaluatorRepositoryImpl class

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## org.hyperic.hq.events.server.session
Class AlertConditionEvaluatorRepositoryImpl

    java.lang.Object
      org.hyperic.hq.events.server.session.AlertConditionEvaluatorRepositoryImpl

All Implemented Interfaces:
  ShutdownCallback, AlertConditionEvaluatorRepository

    public class AlertConditionEvaluatorRepositoryImpl

extends java.lang.Object
implements AlertConditionEvaluatorRepository, ShutdownCallback

Default implementation of`AlertConditionEvaluatorRepository` This implementation is NOT thread-safe. Access to add, remove, and get should be synchronized by external callers if concurrent access is expected (current impl of add/get is single-threaded through RegisteredTriggerManager. remove is very unlikely to occur concurrently). This implementation persists the state of `AlertConditionEvaluator`s and their `ExecutionStrategy` s on server shutdown.

Constructor Summary
`protected` | `AlertConditionEvaluatorRepositoryImpl(AlertConditionEvaluatorStateRepository alertConditionEvaluatorStateRepository)`

Method Summary
`void` | `addAlertConditionEvaluator(AlertConditionEvaluator alertConditionEvaluator)` Add to the repository
`AlertConditionEvaluator` | `getAlertConditionEvaluatorById(java.lang.Integer alertDefinitionId)`
`java.util.Map` | `getAlertConditionEvaluators()` ConcurrentModificationException may occur to callers of this method when iterating through the map.
`static AlertConditionEvaluatorRepository` | `getInstance()`
`AlertConditionEvaluatorStateRepository` | `getStateRepository()` Get the `AlertConditionEvaluatorStateRepository`
`void` | `removeAlertConditionEvaluator(java.lang.Integer alertDefinitionId)` Remove from the repository
`void` | `shutdown()` Called by the HQ Application when it has been requested to shutdown.

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

Constructor Detail

### AlertConditionEvaluatorRepositoryImpl

    protected AlertConditionEvaluatorRepositoryImpl(AlertConditionEvaluatorStateRepository alertConditionEvaluatorStateRepository)

Parameters:
  `alertConditionEvaluatorStateRepository` - The `AlertConditionEvaluatorStateRepository` to use for persisting state on server shutdown

Method Detail

### addAlertConditionEvaluator

    public void addAlertConditionEvaluator(AlertConditionEvaluator alertConditionEvaluator)

  Description copied from interface: `AlertConditionEvaluatorRepository`
  Add to the repository

  Specified by:
    `addAlertConditionEvaluator` in interface `AlertConditionEvaluatorRepository`
  Parameters:
    `alertConditionEvaluator` - The `AlertConditionEvaluator` to add the repository

### getAlertConditionEvaluatorById

    public AlertConditionEvaluator getAlertConditionEvaluatorById(java.lang.Integer alertDefinitionId)

  Specified by:
    `getAlertConditionEvaluatorById` in interface `AlertConditionEvaluatorRepository`
  Parameters:
    `alertDefinitionId` - The ID of the alert definition
  Returns:
    The corresponding `AlertConditionEvaluator` or null if none exists

### getAlertConditionEvaluators

    public java.util.Map getAlertConditionEvaluators()

  ConcurrentModificationException may occur to callers of this method when iterating through the map. However, since the AlertConditionEvaluatorDiagnosticService MBean is the only client, it is not a big issue for now.

  Specified by:
    `getAlertConditionEvaluators` in interface `AlertConditionEvaluatorRepository`

### removeAlertConditionEvaluator

    public void removeAlertConditionEvaluator(java.lang.Integer alertDefinitionId)

  Description copied from interface: `AlertConditionEvaluatorRepository`
  Remove from the repository

  Specified by:
    `removeAlertConditionEvaluator` in interface `AlertConditionEvaluatorRepository`
  Parameters:
    `alertDefinitionId` - The ID of the alert definition whose `AlertConditionEvaluator` should be removed from the repository

### getStateRepository

    public AlertConditionEvaluatorStateRepository getStateRepository()

  Description copied from interface: `AlertConditionEvaluatorRepository`
  Get the `AlertConditionEvaluatorStateRepository`

  Specified by:
    `getStateRepository` in interface `AlertConditionEvaluatorRepository`

### shutdown

    public void shutdown()

  Description copied from interface: `ShutdownCallback`
  Called by the HQ Application when it has been requested to shutdown. Recipients of this message should only perform trivial operations, as session beans, etc. are not guaranteed to be functional.

  Specified by:
    `shutdown` in interface `ShutdownCallback`

### getInstance

    public static AlertConditionEvaluatorRepository getInstance()

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