org.eclipse.incquery.runtime.evm.api

Class Activation<EventAtom>

java.lang.Object

org.eclipse.incquery.runtime.evm.api.Activation<EventAtom>

Type Parameters:

EventAtom - the type of the pattern match

public class Activation<EventAtom>
extends java.lang.Object

An Activation is a created for a RuleInstance when the preconditions (LHS) are fully satisfied with some domain model elements and the instance becomes eligible for execution.

An Activation holds a state, a pattern match, the corresponding instance 5nstance. The state of the Activation can be either Inactive, Appeared, Disappeared, Upgraded or Fired, while its actual state will be managed by the life-cycle of its instance.

Author:

Tamas Szabo

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object obj)
void	fire(Context context) The activation will be fired; the appropriate job of the instance will be executed based on the activation state.
EventAtom	getAtom()
RuleInstance<EventAtom>	getInstance()
ActivationState	getState()
int	hashCode()
boolean	isEnabled() An activatio is enabled, if the there are jobs corresponding to the state of the activation.
java.lang.String	toString()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Method Detail

getAtom

public EventAtom getAtom()

getState

public ActivationState getState()

isEnabled

public boolean isEnabled()

An activatio is enabled, if the there are jobs corresponding to the state of the activation.

Returns:

true, if there are jobs for the current state

getInstance

public RuleInstance<EventAtom> getInstance()

Returns:

the instance

fire

public void fire(Context context)

The activation will be fired; the appropriate job of the instance will be executed based on the activation state.

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object