Examples of org.drools.time.Interval

org.drools.time.Interval
A class to represent a time interval. Specially useful to calculate time distance between events constrained by temporal constraints. If the interval is open, i.e., from -infinitum to +infinitum, the representation is created by using lowerBound = Long.MIN_VALUE and upperBound = Long.MAX_VALUE. @author etirelli

            Interval[][] source = new Interval[size][];
            for ( int row = 0; row < size; row++ ) {
                source[row] = new Interval[size];
                for ( int col = 0; col < size; col++ ) {
                    if ( row == col ) {
                        source[row][col] = new Interval( 0,
                                                         0 );
                    } else {
                        source[row][col] = new Interval( Interval.MIN,
                                                         Interval.MAX );
                    }
                }
            }


            Interval[][] result;
            if ( size > 1 ) {
                List<Declaration> declarations = new ArrayList<Declaration>();
                int eventIndex = 0;
                // populate the matrix
                for ( Pattern event : events ) {
                    // references to other events are always backward references, so we can build the list as we go
                    declarations.add( event.getDeclaration() );
                    Map<Declaration, Interval> temporal = new HashMap<Declaration, Interval>();
                    gatherTemporalRelationships( event.getConstraints(),
                                                 temporal );
                    // intersect default values with the actual constrained intervals
                    for ( Map.Entry<Declaration, Interval> entry : temporal.entrySet() ) {
                        int targetIndex = declarations.indexOf( entry.getKey() );
                        Interval interval = entry.getValue();
                        source[targetIndex][eventIndex].intersect( interval );
                        Interval reverse = new Interval( interval.getUpperBound() == Long.MAX_VALUE ? Long.MIN_VALUE : -interval.getUpperBound(), 
                                                         interval.getLowerBound() == Long.MIN_VALUE ? Long.MAX_VALUE : -interval.getLowerBound() );
                        source[eventIndex][targetIndex].intersect( reverse );
                    }
                    eventIndex++;
                }

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                if ( constr.isTemporal() ) {
                    // if a constraint already exists, calculate the intersection
                    Declaration target = constr.getRequiredDeclarations()[0];
                    // only calculate relationships to other event patterns
                    if( target.isPatternDeclaration() && target.getPattern().getObjectType().isEvent() ) {
                        Interval interval = temporal.get( target );
                        if ( interval == null ) {
                            interval = constr.getInterval();
                            temporal.put( target,
                                          interval );
                        } else {
                            interval.intersect( constr.getInterval() );
                        }
                    }
                }
            } else if ( obj instanceof AbstractCompositeConstraint ) {
                gatherTemporalRelationships( Arrays.asList( ((AbstractCompositeConstraint) obj).getBetaConstraints() ),

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        }
        
        @Override
        public Interval getInterval() {
            if( this.getOperator().isNegated() ) {
                return new Interval( Interval.MIN, Interval.MAX );
            }
            return new Interval( 0, 0 );
        }

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                } else {
                    init = Interval.MIN;
                    end = Interval.MAX;
                }
            }
            return new Interval( init,
                                 end );
        }

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     * Test method for {@link org.drools.reteoo.builder.BuildUtils#calculateTemporalDistance(org.drools.common.InternalRuleBase, org.drools.rule.GroupElement)}.
     */
    public void testCalculateTemporalDistance() {
        // input is here just for "documentation" purposes
        Interval[][] input = new Interval[][] {
                                                { new Interval(0,0), new Interval(-2,2), new Interval(-3, 4), new Interval(MIN, MAX), new Interval(MIN, MAX) },
                                                { new Interval(-2,2), new Interval(0,0), new Interval(MIN, MAX), new Interval(1,2), new Interval(MIN, MAX) },
                                                { new Interval(-4,3), new Interval(MIN,MAX), new Interval(0, 0), new Interval(2, 3), new Interval(MIN, MAX) },
                                                { new Interval(MIN,MAX), new Interval(-2,-1), new Interval(-3, -2), new Interval(0, 0), new Interval(1, 10) },
                                                { new Interval(MIN,MAX), new Interval(MIN,MAX), new Interval(MIN,MAX), new Interval(-10, -1), new Interval(0,0) }
                                        };
        Interval[][] expected = new Interval[][] {
                                                { new Interval(0,0), new Interval(-2,2), new Interval(-3, 2), new Interval(-1, 4), new Interval(0, 14) },
                                                { new Interval(-2,2), new Interval(0,0), new Interval(-2, 0), new Interval(1,2), new Interval(2, 12) },
                                                { new Interval(-2,3), new Interval(0,2), new Interval(0, 0), new Interval(2, 3), new Interval(3, 13) },
                                                { new Interval(-4,1), new Interval(-2,-1), new Interval(-3, -2), new Interval(0, 0), new Interval(1, 10) },
                                                { new Interval(-14,0), new Interval(-12,-2), new Interval(-13,-3), new Interval(-10, -1), new Interval(0,0) }
                                        };


        AfterEvaluatorDefinition evals = new AfterEvaluatorDefinition();
        ClassObjectType ot = new ClassObjectType(StockTick.class, true);

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     * Test method for {@link org.drools.reteoo.builder.BuildUtils#calculateTemporalDistance(org.drools.common.InternalRuleBase, org.drools.rule.GroupElement)}.
     */
    public void testCalculateTemporalDistance() {
        // input is here just for "documentation" purposes
        Interval[][] input = new Interval[][] {
                                                { new Interval(0,0), new Interval(-2,2), new Interval(-3, 4), new Interval(MIN, MAX), new Interval(MIN, MAX) },
                                                { new Interval(-2,2), new Interval(0,0), new Interval(MIN, MAX), new Interval(1,2), new Interval(MIN, MAX) },
                                                { new Interval(-4,3), new Interval(MIN,MAX), new Interval(0, 0), new Interval(2, 3), new Interval(MIN, MAX) },
                                                { new Interval(MIN,MAX), new Interval(-2,-1), new Interval(-3, -2), new Interval(0, 0), new Interval(1, 10) },
                                                { new Interval(MIN,MAX), new Interval(MIN,MAX), new Interval(MIN,MAX), new Interval(-10, -1), new Interval(0,0) }
                                        };
        Interval[][] expected = new Interval[][] {
                                                { new Interval(0,0), new Interval(-2,2), new Interval(-3, 2), new Interval(-1, 4), new Interval(0, 14) },
                                                { new Interval(-2,2), new Interval(0,0), new Interval(-2, 0), new Interval(1,2), new Interval(2, 12) },
                                                { new Interval(-2,3), new Interval(0,2), new Interval(0, 0), new Interval(2, 3), new Interval(3, 13) },
                                                { new Interval(-4,1), new Interval(-2,-1), new Interval(-3, -2), new Interval(0, 0), new Interval(1, 10) },
                                                { new Interval(-14,0), new Interval(-12,-2), new Interval(-13,-3), new Interval(-10, -1), new Interval(0,0) }
                                        };


        AfterEvaluatorDefinition evals = new AfterEvaluatorDefinition();
        ClassObjectType ot = new ClassObjectType(StockTick.class, true);

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     */
    @Test
    public void testCalculateTemporalDistance() {
        // input is here just for "documentation" purposes
        Interval[][] input = new Interval[][] {
                                                { new Interval(0,0), new Interval(-2,2), new Interval(-3, 4), new Interval(MIN, MAX), new Interval(MIN, MAX) },
                                                { new Interval(-2,2), new Interval(0,0), new Interval(MIN, MAX), new Interval(1,2), new Interval(MIN, MAX) },
                                                { new Interval(-4,3), new Interval(MIN,MAX), new Interval(0, 0), new Interval(2, 3), new Interval(MIN, MAX) },
                                                { new Interval(MIN,MAX), new Interval(-2,-1), new Interval(-3, -2), new Interval(0, 0), new Interval(1, 10) },
                                                { new Interval(MIN,MAX), new Interval(MIN,MAX), new Interval(MIN,MAX), new Interval(-10, -1), new Interval(0,0) }
                                        };
        Interval[][] expected = new Interval[][] {
                                                { new Interval(0,0), new Interval(-2,2), new Interval(-3, 2), new Interval(-1, 4), new Interval(0, 14) },
                                                { new Interval(-2,2), new Interval(0,0), new Interval(-2, 0), new Interval(1,2), new Interval(2, 12) },
                                                { new Interval(-2,3), new Interval(0,2), new Interval(0, 0), new Interval(2, 3), new Interval(3, 13) },
                                                { new Interval(-4,1), new Interval(-2,-1), new Interval(-3, -2), new Interval(0, 0), new Interval(1, 10) },
                                                { new Interval(-14,0), new Interval(-12,-2), new Interval(-13,-3), new Interval(-10, -1), new Interval(0,0) }
                                        };


        AfterEvaluatorDefinition evals = new AfterEvaluatorDefinition();
        ClassObjectType ot = new ClassObjectType(StockTick.class, true);

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        return false;
    }
    
    public Interval getInterval() {
        // returns an open bound interval
        return new Interval();
    }

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                } else {
                    init = Interval.MIN;
                    end = Interval.MAX;
                }
            }
            return new Interval( init,
                                 end );
        }

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        }


        @Override
        public Interval getInterval() {
            if ( this.getOperator().isNegated() ) {
                return new Interval( Interval.MIN,
                                     Interval.MAX );
            }
            return new Interval( Interval.MIN,
                                 0 );
        }

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