org.camunda.bpm.engine.impl.util
Class CompareUtil

java.lang.Object
  org.camunda.bpm.engine.impl.util.CompareUtil

public class CompareUtil
extends Object

Util class for comparisons.

Author:

Filip Hrisafov

Constructor Summary

CompareUtil()

Method Summary

static <T extends Comparable<T>> boolean	areNotInAscendingOrder(List<T> values) Checks if any of the values are not in an ascending order.
static <T extends Comparable<T>> boolean	areNotInAscendingOrder(T... values) Checks if any of the values are not in an ascending order.
static <T> boolean	elementIsContainedInArray(T element, T... values) Checks if the element is contained within the list of values.
static <T> boolean	elementIsContainedInList(T element, Collection<T> values) Checks if the element is contained within the list of values.
static <T> boolean	elementIsNotContainedInArray(T element, T... values) Checks if the element is contained within the list of values.
static <T> boolean	elementIsNotContainedInList(T element, Collection<T> values) Checks if the element is not contained within the list of values.
static <T extends Comparable<T>> T	max(T obj1, T obj2) Returns any element if obj1.compareTo(obj2) == 0
static <T extends Comparable<T>> T	min(T obj1, T obj2) Returns any element if obj1.compareTo(obj2) == 0

Methods inherited from class java.lang.Object

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

Constructor Detail

CompareUtil

public CompareUtil()

Method Detail

areNotInAscendingOrder

public static <T extends Comparable<T>> boolean areNotInAscendingOrder(T... values)

Checks if any of the values are not in an ascending order. The check is done based on the Comparable.compareTo(Object) method. E.g. if we have minPriority = 10, priority = 13 and maxPriority = 5 and Integer[] values = {minPriority, priority, maxPriority}. Then a call to areNotInAscendingOrder(Comparable[] values) will return true

Type Parameters:

T - the type of the comparable

Parameters:

values - to validate

Returns:

false if the not null values are in an ascending order or all the values are null, true otherwise

areNotInAscendingOrder

public static <T extends Comparable<T>> boolean areNotInAscendingOrder(List<T> values)

Checks if any of the values are not in an ascending order. The check is done based on the Comparable.compareTo(Object) method. E.g. if we have minPriority = 10, priority = 13 and maxPriority = 5 and List<Integer> values = {minPriority, priority, maxPriority}. Then a call to areNotInAscendingOrder(List values) will return true

Type Parameters:

T - the type of the comparable

Parameters:

values - to validate

Returns:

false if the not null values are in an ascending order or all the values are null, true otherwise

elementIsNotContainedInList

public static <T> boolean elementIsNotContainedInList(T element,
                                                      Collection<T> values)

Checks if the element is not contained within the list of values. If the element, or the list are null then true is returned.

Type Parameters:

T - the type of the element

Parameters:

element - to check

values - to check in

Returns:

true if the element and values are not null and the values does not contain the element, false otherwise

elementIsNotContainedInArray

public static <T> boolean elementIsNotContainedInArray(T element,
                                                       T... values)

Checks if the element is contained within the list of values. If the element, or the list are null then true is returned.

Type Parameters:

T - the type of the element

Parameters:

element - to check

values - to check in

Returns:

true if the element and values are not null and the values does not contain the element, false otherwise

elementIsContainedInList

public static <T> boolean elementIsContainedInList(T element,
                                                   Collection<T> values)

Checks if the element is contained within the list of values.

Type Parameters:

T - the type of the element

Parameters:

element - to check

values - to check in

Returns:

true if the element and values are not null and the values contain the element, false otherwise

elementIsContainedInArray

public static <T> boolean elementIsContainedInArray(T element,
                                                    T... values)

Checks if the element is contained within the list of values.

Type Parameters:

T - the type of the element

Parameters:

element - to check

values - to check in

Returns:

true if the element and values are not null and the values contain the element, false otherwise

min

public static <T extends Comparable<T>> T min(T obj1,
                                              T obj2)

Returns any element if obj1.compareTo(obj2) == 0

max

public static <T extends Comparable<T>> T max(T obj1,
                                              T obj2)

Returns any element if obj1.compareTo(obj2) == 0