IRL keywords

The ILOG® Rule Language defines IRL keywords to support rule authoring, management, and execution.

after
The after keyword defines a binary temporal constraint in the condition part of a rule in an event condition.
agendafilter
The agendafilter keyword defines an agenda filter in a rule task.
algorithm
The algorithm keyword defines an execution mode.
allrules
The allrules keyword sets all the rules in a rule task as eligible to be executed.
as
The as keyword defines a type conversion.
before
The before keyword defines a binary temporal constraint.
body (in flowtask)
The body keyword defines the body of the ruleflow.
body (in action task)
The body keyword defines the body of an action task.
body (in ruletask)
The body keyword defines the body of the rule task.
break
The break keyword exits a loop.
case
The case keyword identifies a statement block in a switch statement.
catch
The catch keyword designates exceptions that will be caught if thrown.
collect
The collect keyword constructs a collection object.
completionflag
The completionflag keyword is used to declare a Boolean value to suspend execution in a ruleflow task.
continue
The continue keyword skips an iteration.
default (in ruletask)
This default keyword selects the RetePlus execution mode for a rule task.
default (in switch)
This default keyword executes the else condition statement.
dynamic
The dynamic keyword specifies the dynamic ordering of rules.
dynamicselect
The dynamicselect keyword specifies the dynamic selection of a rule.
else (in if)
In functions or rule actions, the else keyword executes an alternate statement block.
else (in rule)
In rule definitions, the else keyword executes an alternate action block depending on the value of an evaluate statement.
evaluate
The evaluate keyword specifies tests on objects.
event (in rule conditions)
The event keyword declares an event condition or an event object.
event (in rule actions)
The event keyword declares an event condition or an event object.
exists
The exists keyword tests whether a class condition is true.
filter
The filter keyword defines an agenda filter.
finalaction
The finalaction keyword declares a final action.
finally
The finally keyword introduces a control block that is executed after a try block.
firing
The firing keyword determines whether all the rules are executed.
firinglimit
The firinglimit keyword specifies the number of rules to be executed.
flowtask
The flowtask keyword declares a subflow task.
for
The for keyword introduces an execution loop.
foreach
The foreach keyword executes a statement block several times.
fork
The fork keyword executes several statement blocks sequentially.
from
The from keyword supports relations between objects.
function
The function keyword defines a function to be called.
functiontask
The functiontask keyword declares an action task.
goto
The goto keyword jumps to another ruleflow statement.
hasher
The hasher keyword defines a hashing expression.
hierarchy
The hierarchy keyword defines a hierarchical property.
if
The if keyword executes one of two statement blocks.
if (in ruleflow)
The if keyword executes one statement block or another, depending on a Boolean expression value.
import
The import keyword imports a Java class or package into a rule file.
in
The in keyword supports relations between object values.
in — !in (predicates)
In any expression, the in keyword tests whether a value belongs to a collection and or the !in keyword tests whether a value does not belong to a collection.
in (ruleset parameter)
The in keyword defines a ruleset parameter.
initialaction
The initialaction keyword declares an initial action.
inout
The inout keyword defines a ruleset parameter that is both an input parameter and an output parameter.
insert
The insert keyword inserts an object into the working memory.
instanceof
The instanceof keyword tests whether an expression can be cast into a type.
instances
The instances keyword declares class instances.
isknown
The isknown keyword tests whether a class attribute has an initialized value.
isunknown
The isunknown keyword tests whether a class attribute has an initialized value.
iterator
The iterator keyword specifies the iterator for the objects on which the sequential execution mode is to be applied.
literal
The literal keyword specifies a literal ordering of the rules executed in a rule task.
logical (in insert)
The logical keyword declares the type of the object to be inserted into the working memory.
logical (in wait)
In a wait statement, the logical keyword designates that conditions must remain true for a wait statement to become true.
match
The match keyword deals with hierarchical property values.
matchedclasses
The matchedclasses keyword specifies the classes on which the sequential execution mode is to be applied.
modify
The modify keyword modifies objects and updates the agenda.
new
The new keyword creates a new object or array.
not
The not keyword tests the negation of a rule condition.
occursin
The occursin keyword defines a unary temporal constraint in an event condition.
ordering
The ordering keyword sets the order of the rules executed in a rule task.
out
The out keyword defines a ruleset output parameter.
overriding, overrides
The overriding and overrides keywords declare overriding relations.
package
The package keyword declares a package.
priority
The priority keyword controls the sequence of rule execution.
property
The property keyword declares a rule, ruleset, or ruleflow property.
propertydefinition
The propertydefinition keyword predeclares the types of rule properties.
refresh
The refresh keyword requests a refresh of the agenda.
retract
The retract keyword removes an object from the working memory.
return
The return keyword returns to the caller.
rule
The rule keyword declares a rule.
rule (in ruletask)
The rule keyword sets a single rule as eligible for execution.
ruleset
The ruleset keyword declares a ruleset.
ruletask
The ruletask keyword declares a rule task.
scope
The scope keyword defines a scope in a rule task.
select
The select keyword selects a rule in a rule task.
sequential
The sequential keyword specifies the execution mode of a rule task.
sorted
The sorted keyword specifies a sorted ordering of rules executed in a rule task.
switch
The switch keyword executes one statement block or another according to an integer expression value.
then
The then keyword declares the action part of a rule.
throw
The throw keyword throws an exception.
timeof
The timeof keyword accesses an event timestamp.
timeout
The timeout keyword is associated with a wait statement.
try
The try keyword executes control statements.
until
The until keyword specifies an absolute time.
update
The update keyword updates an object.
use
The use keyword imports an IRL package or artifact.
variables
The variables keyword declares variables.
wait
The wait keyword incorporates time as a rule parameter.
when
The when keyword declares the condition part of a rule.
where
The where keyword defines a constraint in a collect statement.
while
The while keyword executes a statement block.
while/break/continue (in ruleflow)
The while keyword executes a loop.

Parent topic: ILOG Rule Language (IRL)