org.drools.analytics.accumulateFunction
Class FindMissingNumber

java.lang.Object
  org.drools.analytics.accumulateFunction.FindMissingNumber

public class FindMissingNumber
extends java.lang.Object

Field Summary

static int

MIN_NUMBER_OF_RESTRICTIONS

Constructor Summary

FindMissingNumber()

Method Summary

protected static java.lang.Number	findMultiplicationPattern(java.math.BigDecimal[] numbers) Looks for multiplication pattern, on each step x multiplied or divided.
protected static java.lang.Number	findSumPattern(java.math.BigDecimal[] numbers) Looks for sum pattern, on each step x is added or removed.
static java.lang.Number	testForPattern(java.util.Collection<LiteralRestriction> restrictions) Test if the values in constraints are in pattern.

Methods inherited from class java.lang.Object

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

Field Detail

MIN_NUMBER_OF_RESTRICTIONS

public static final int MIN_NUMBER_OF_RESTRICTIONS

See Also:

Constant Field Values

Constructor Detail

FindMissingNumber

public FindMissingNumber()

Method Detail

testForPattern

public static java.lang.Number testForPattern(java.util.Collection<LiteralRestriction> restrictions)

Test if the values in constraints are in pattern.

Parameters:

restrictions -

Returns:

false if can't find a pattern or constraints list is null or size of the list is under 3.

findSumPattern

protected static java.lang.Number findSumPattern(java.math.BigDecimal[] numbers)

Looks for sum pattern, on each step x is added or removed. -x is the same as +(-x) so this works for both.

Parameters:

numbers -

Returns:

true if pattern is found.

findMultiplicationPattern

protected static java.lang.Number findMultiplicationPattern(java.math.BigDecimal[] numbers)

Looks for multiplication pattern, on each step x multiplied or divided. *x is the same as *(1/x) so this works for both.

Parameters:

numbers -

Returns:

true if pattern is found.