org.vishia.fbcl.fblock

Class EccTransition_FBcl

java.lang.Object

org.vishia.fbcl.fblock.EccTransition_FBcl

public class EccTransition_FBcl
extends java.lang.Object

A Transition of a State machine inside a FBlock. A transition is always associated to its source state.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	EccTransition_FBcl.Create

Field Summary

Fields

Modifier and Type	Field and Description
boolean	bTransient
(package private) org.vishia.execode.Execode	condition The condition is a complex expression, here given as Execode like in Statement_FBcl null if no extra condition.
EccState_FBcl	dstState The state which is active after the here linked action.
EvinoutType_FBcl	event The event which should be given for this transition.
static java.util.List<EccTransition_FBcl>	nullist Empty list to iterate without content.
EccState_FBcl	preState The stateAction is valid if the current state of an ECC ("Execution Control Chart" in IEC61499 terms) is this state, or if this element is null.
java.lang.String	sCond Name of the triggering event or null if only condition is valid.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	EccTransition_FBcl(EccState_FBcl preState, EccState_FBcl dstState, EvinoutType_FBcl event, java.lang.String cond) Only the Create can create.

Method Summary

Modifier and Type	Method and Description
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

nullist

public static java.util.List<EccTransition_FBcl> nullist

Empty list to iterate without content.

preState

public final EccState_FBcl preState

The stateAction is valid if the current state of an ECC ("Execution Control Chart" in IEC61499 terms) is this state, or if this element is null. null is used for an unconditional action either if no ECC is given, in a Simple FBlock or in a composite FBlock. null is also given in a FBock with a simple regular ECC: Each event starts from the IDLE or START state, enters a temporary state with the here described action, and goes back to the only one IDLE state.

dstState

public final EccState_FBcl dstState

The state which is active after the here linked action. It is null if only one state is given as current or no ECC is given. This element is null if also preState is null, or vice versa..

sCond

public final java.lang.String sCond

Name of the triggering event or null if only condition is valid.

condition

org.vishia.execode.Execode condition

The condition is a complex expression, here given as Execode like in Statement_FBcl null if no extra condition.

bTransient

public final boolean bTransient

event

public final EvinoutType_FBcl event

The event which should be given for this transition.

Constructor Detail

EccTransition_FBcl

protected EccTransition_FBcl(EccState_FBcl preState,
                             EccState_FBcl dstState,
                             EvinoutType_FBcl event,
                             java.lang.String cond)

Only the Create can create.

Method Detail

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object