Class ValvePositionCondition

java.lang.Object

neqsim.process.logic.condition.ValvePositionCondition

All Implemented Interfaces:

LogicCondition

public class ValvePositionCondition
extends Object
implements LogicCondition

Condition that checks valve position/opening percentage.

Supports comparison operators: >, >=, <, <=, ==, !=

Example usage:

// Check if valve is closed (less than 5% open)
ValvePositionCondition closed = new ValvePositionCondition(valve, "<", 5.0);

// Check if valve is fully open
ValvePositionCondition open = new ValvePositionCondition(valve, ">", 95.0);

Version:

1.0

Author:

ESOL

Field Summary

Fields

Modifier and Type	Field	Description
private final String	operator
private final double	setpoint
private final double	tolerance
private final ValveInterface	valve

Constructor Summary

Constructors

Constructor	Description
ValvePositionCondition(ValveInterface valve, String operator, double setpoint)	Creates a valve position condition with default tolerance (1.0%).
ValvePositionCondition(ValveInterface valve, String operator, double setpoint, double tolerance)	Creates a valve position condition with specified tolerance.

Method Summary

Modifier and Type	Method	Description
boolean	evaluate()	Evaluates if the condition is currently met.
String	getCurrentValue()	Gets the current value being evaluated (for diagnostics).
String	getDescription()	Gets a description of this condition.
String	getExpectedValue()	Gets the expected/setpoint value (for diagnostics).
ProcessEquipmentInterface	getTargetEquipment()	Gets the target equipment this condition monitors (if any).

Methods inherited from class Object

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

Field Details

valve

private final ValveInterface valve

setpoint

private final double setpoint

operator

private final String operator

tolerance

private final double tolerance

Constructor Details

ValvePositionCondition

public ValvePositionCondition(ValveInterface valve,
 String operator,
 double setpoint)

Creates a valve position condition with default tolerance (1.0%).

Parameters:

valve - valve to check

operator - comparison operator (>, >=, <, <=, ==, !=)

setpoint - position setpoint (0-100%)

ValvePositionCondition

public ValvePositionCondition(ValveInterface valve,
 String operator,
 double setpoint,
 double tolerance)

Creates a valve position condition with specified tolerance.

Parameters:

valve - valve to check

operator - comparison operator (>, >=, <, <=, ==, !=)

setpoint - position setpoint (0-100%)

tolerance - tolerance for equality checks (%)

Method Details

evaluate

public boolean evaluate()

Description copied from interface: LogicCondition

Evaluates if the condition is currently met.

Specified by:

evaluate in interface LogicCondition

Returns:

true if condition is satisfied, false otherwise

getDescription

public String getDescription()

Description copied from interface: LogicCondition

Gets a description of this condition.

Specified by:

getDescription in interface LogicCondition

Returns:

human-readable description

getTargetEquipment

public ProcessEquipmentInterface getTargetEquipment()

Description copied from interface: LogicCondition

Gets the target equipment this condition monitors (if any).

Specified by:

getTargetEquipment in interface LogicCondition

Returns:

target equipment, or null if not equipment-specific

getCurrentValue

public String getCurrentValue()

Description copied from interface: LogicCondition

Gets the current value being evaluated (for diagnostics).

Specified by:

getCurrentValue in interface LogicCondition

Returns:

current value as string, or empty if not applicable

getExpectedValue

public String getExpectedValue()

Description copied from interface: LogicCondition

Gets the expected/setpoint value (for diagnostics).

Specified by:

getExpectedValue in interface LogicCondition

Returns:

expected value as string, or empty if not applicable