ECA: Event - Condition - Action

ECA is a processor that gets triggered for every Drupal event. It validates these events against the models (event - condition - action), which are stored in config, and processes them. ECA leverages existing components of Drupal core, i.e. events and actions. It comes with its own plugin manager for conditions, which results in all 3 components (events, conditions, actions) to be plugins that can easily be extended by other modules.

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