Package com.inductiveautomation.ignition.common.expressions

Class LogicalExpression

java.lang.Object

com.inductiveautomation.ignition.common.expressions.AbstractExpression

com.inductiveautomation.ignition.common.expressions.LogicalExpression

All Implemented Interfaces:

Expression

public class LogicalExpression
extends AbstractExpression

Field Summary

Fields

Modifier and Type	Field	Description
static final int	AND
static final int	OR

Fields inherited from class com.inductiveautomation.ignition.common.expressions.AbstractExpression

children, context, updateListener

Constructor Summary

Constructors

Constructor	Description
LogicalExpression()
LogicalExpression(Expression e1, Expression e2, int opType)

Method Summary

Modifier and Type	Method	Description
@NonNull QualifiedValue	execute()	Compute and return the value of this expression.
String	getOpName()	Return a human-readable name for the operation that this expression performs.
int	getOpType()
Class<?>	getType()	Return the type that this expression will return.
void	setOpType(int i)

Methods inherited from class com.inductiveautomation.ignition.common.expressions.AbstractExpression

connect, disconnect, getChildren, setChildren, shutdown, startup

Methods inherited from class java.lang.Object

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

Field Details

AND

public static final int AND

See Also:

• Constant Field Values

OR

public static final int OR

See Also:

• Constant Field Values

Constructor Details

LogicalExpression

public LogicalExpression(Expression e1,
 Expression e2,
 int opType)

LogicalExpression

public LogicalExpression()

Method Details

execute

public @NonNull QualifiedValue execute()
                                throws ExpressionException

Description copied from interface: Expression

Compute and return the value of this expression.

Returns:

the result of the expression evaluation as a QualifiedValue

Throws:

ExpressionException - if an error occurs during execution

getType

public Class<?> getType()

Description copied from interface: Expression

Return the type that this expression will return.

Returns:

the Class of the value returned by Expression.execute()

getOpName

public String getOpName()

Description copied from interface: Expression

Return a human-readable name for the operation that this expression performs.

Returns:

the operation name

getOpType

public int getOpType()

setOpType

public void setOpType(int i)