com.inductiveautomation.ignition.common.expressions

Class EqualityExpression

java.lang.Object

com.inductiveautomation.ignition.common.expressions.AbstractExpression

com.inductiveautomation.ignition.common.expressions.EqualityExpression

All Implemented Interfaces:

Expression

public class EqualityExpression
extends AbstractExpression

Field Summary

Fields

Modifier and Type	Field and Description
static int	EQUAL
static int	NOTEQUAL

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

children, context, updateListener

Constructor Summary

Constructors

Constructor and Description
EqualityExpression()
EqualityExpression(Expression e1, Expression e2, int opType)

Method Summary

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

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

connect, disconnect, getChildren, setChildren, shutdown, startup, typeMismatch

Methods inherited from class java.lang.Object

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

Field Detail

EQUAL

public static final int EQUAL

See Also:

Constant Field Values

NOTEQUAL

public static final int NOTEQUAL

See Also:

Constant Field Values

Constructor Detail

EqualityExpression

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

EqualityExpression

public EqualityExpression()

Method Detail

execute

public QualifiedValue execute()
                       throws ExpressionException

Description copied from interface: Expression

Compute and return the value of this expression

Throws:

ExpressionException

getType

public java.lang.Class<?> getType()

Description copied from interface: Expression

Return the type that this expression will return

getOpName

public java.lang.String getOpName()

Description copied from interface: Expression

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

getOpType

public int getOpType()

setBools

public void setBools(boolean b)

setOpType

public void setOpType(int i)

setTypeCode

public void setTypeCode(int typeCode)

Noop. For backwards compatability