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use of if condition ? [message #892736]

Fri, 29 June 2012 12:07

Kosala Yapa

Messages: 159
Registered: September 2010

Senior Member

rule rule_getDevice{
from
a: source!DeviceItem
to
p:target!Device(
name <- a.Name,
s7DeviceReference<-a.DeviceReference,
isSelectedWithinStep7<-a.IsSelected,
if (a.IsSelected = 'true'){
HeadModule<-a.ModuleList.ModuleItem->select(mi|mi.getSlotValue()='0')->collect(e|thisModule.rule_getHeadModule(e))->first();
Module<-a.ModuleList.ModuleItem->select(mi|mi.getSlotValue()<>'0')->sortedBy(mi|mi.getSlotValue().toInteger())->collect(e|thisModule.rule_getModule(e));
}
)
}

syntax error: no viable alternative at input.

can someone help me to resolve this issue?

Thanks in advance.
Kosala

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Re: use of if condition ? [message #892764 is a reply to message #892736]

Fri, 29 June 2012 14:17

Sylvain EVEILLARD

Messages: 556
Registered: July 2009

Senior Member

Use the imperative do section.
In declarative sections the "if" have to be in the OCL form : if cond then stmt else stmt endif

rule rule_getDevice{
from
a: source!DeviceItem
to
p:target!Device(
name <- a.Name,
s7DeviceReference<-a.DeviceReference,
isSelectedWithinStep7<-a.IsSelected
)
do{
if (a.IsSelected = 'true'){
p.HeadModule<-a.ModuleList.ModuleItem->select(mi|mi.getSlotValue()='0')->collect(e|thisModule.rule_getHeadModule(e))->first();
p.Module<-a.ModuleList.ModuleItem->select(mi|mi.getSlotValue()<>'0')->sortedBy(mi|mi.getSlotValue().toInteger())->collect(e|thisModule.rule_getModule(e));
}
}
}

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