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java.lang.Object jason.asSemantics.DefaultInternalAction jason.stdlib.eval
public class eval
Internal action: .eval(Var,Logical Expression)
.
Description: evaluates the logical expression (which computes to true or false), the result is unified with Var.
Parameters:
Examples:
.eval(X, true | false)
: X
unifies with
true
..eval(X, 3<5 & not 4+2<3)
: X
unifies
with true
.
Constructor Summary | |
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eval()
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Method Summary | |
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protected void |
checkArguments(Term[] args)
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java.lang.Object |
execute(TransitionSystem ts,
Unifier un,
Term[] args)
Executes the internal action. |
int |
getMaxArgs()
|
int |
getMinArgs()
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Term[] |
prepareArguments(Literal body,
Unifier un)
Prepare body's terms to be used in 'execute', normally it consist of cloning and applying each term |
Methods inherited from class jason.asSemantics.DefaultInternalAction |
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canBeUsedInContext, suspendIntention |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public eval()
Method Detail |
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public int getMinArgs()
getMinArgs
in class DefaultInternalAction
public int getMaxArgs()
getMaxArgs
in class DefaultInternalAction
public Term[] prepareArguments(Literal body, Unifier un)
InternalAction
prepareArguments
in interface InternalAction
prepareArguments
in class DefaultInternalAction
protected void checkArguments(Term[] args) throws JasonException
checkArguments
in class DefaultInternalAction
JasonException
public java.lang.Object execute(TransitionSystem ts, Unifier un, Term[] args) throws java.lang.Exception
InternalAction
execute
in interface InternalAction
execute
in class DefaultInternalAction
java.lang.Exception
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