Package org.apache.hadoop.hive.ql.wm

Interface Summary

Interface	Description
CounterLimit	Counter limit interface for defining counter name and its limit exceeding which action defined in trigger will get executed.
Expression	Expression that is defined in triggers.
Expression.Builder
Trigger	Trigger interface which gets mapped to CREATE TRIGGER ..
TriggerActionHandler<SessionType>	Interface for handling rule violations by queries and for performing actions defined in the rules.

Class Summary

Class	Description
Action	Action that gets invoked for trigger violations.
CustomCounterLimit	Custom counters with limits (this will only work if the execution engine exposes this counter)
ExecutionTrigger	Trigger with query level scope that contains a name, trigger expression violating which defined action will be executed.
ExpressionFactory	Factory to create expressions
FileSystemCounterLimit	File system specific counters with defined limits
SessionTriggerProvider	Implementation for providing current open sessions and active trigger.
TimeCounterLimit	Time based counters with limits
TriggerExpression	Simple trigger expression for a rule.
VertexCounterLimit	Vertex specific counters with limits
WmContext	Some context information that are required for rule evaluation.

Enum Summary

Enum	Description
Action.Type
Expression.Predicate
FileSystemCounterLimit.FSCounter
TimeCounterLimit.TimeCounter
VertexCounterLimit.VertexCounter