com.inductiveautomation.ignition.common.expressions

Class ToStringExpression

java.lang.Object

com.inductiveautomation.ignition.common.expressions.AbstractExpression

com.inductiveautomation.ignition.common.expressions.ToStringExpression

All Implemented Interfaces:

Expression

public class ToStringExpression
extends AbstractExpression

Simply concatenates all sub expressions into a single string value. Very similar to QueryExpression, but does not make any special adjustments to the value. Also, unlike that expression type, this one uses the current locale as well.

Field Summary

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

children, context, updateListener

Constructor Summary

Constructors

Constructor and Description
ToStringExpression()
ToStringExpression(java.util.Locale locale)

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
java.lang.Class<?>	getType() Return the type that this expression will return
protected java.lang.String	objToStr(java.lang.Object value)

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

Constructor Detail

ToStringExpression

public ToStringExpression()

ToStringExpression

public ToStringExpression(java.util.Locale locale)

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

objToStr

protected java.lang.String objToStr(java.lang.Object value)