org.projog.core.predicate

Class CutException

java.lang.Object

java.lang.Throwable

java.lang.Exception

java.lang.RuntimeException

org.projog.core.predicate.CutException

All Implemented Interfaces:

Serializable

public final class CutException
extends RuntimeException

Exception thrown when the evaluation of a rule backtracks to a cut.

See Also:

Cut, InterpretedUserDefinedPredicate, Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static CutException	CUT_EXCEPTION Singleton instance.

Method Summary

Methods inherited from class java.lang.Throwable

addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString

Methods inherited from class java.lang.Object

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

Field Detail

CUT_EXCEPTION

public static final CutException CUT_EXCEPTION

Singleton instance.

Reuse a single instance to avoid the stack trace generation overhead of creating a new exception each time. The CutException is specifically used for control flow in InterpretedUserDefinedPredicate.evaluate() and its stack trace is not required.