Package com.kheops.util

Class CollectionUtils

java.lang.Object

com.kheops.util.CollectionUtils

public class CollectionUtils
extends Object

Constructor Summary

Constructors

Constructor	Description
CollectionUtils()

Method Summary

Modifier and Type	Method	Description
static <T> T	find(Collection<T> sourceList, SimplePredicate predicate)	To find the first object in a collection that fulfills the condition evaluated by the given predicate
static <T> List<T>	findAll(Collection<T> sourceList, SimplePredicate predicate)	To find all objects in a collection that fulfill the condition evaluated by the given predicate
static <T> int	indexOf(Collection<T> sourceList, SimplePredicate predicate)	Returns the position in the array where the desired element has been found or -1 if not found
static <T> int	indexOf(T wanted, Collection<T> sourceList)	To obtain the position of an element in a collection.
static <T> int	indexOf(T wanted, Collection<T> sourceList, MatcherPredicate predicate)	Returns the position in the collection where the desired element has been found or -1 if not found.

Methods inherited from class java.lang.Object

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

Constructor Details

CollectionUtils

public CollectionUtils()

Method Details

indexOf

public static <T> int indexOf(T wanted,
 Collection<T> sourceList,
 MatcherPredicate predicate)

Returns the position in the collection where the desired element has been found or -1 if not found. Designed to be used when the the class does not consistently implement the equals() method

Parameters:

predicate - A delegate object responsible to evaluate if the wanted object matches the target object in the collection

indexOf

public static <T> int indexOf(T wanted,
 Collection<T> sourceList)

To obtain the position of an element in a collection. The object must consistently implement the equals() method.

indexOf

public static <T> int indexOf(Collection<T> sourceList,
 SimplePredicate predicate)

Returns the position in the array where the desired element has been found or -1 if not found

find

public static <T> T find(Collection<T> sourceList,
 SimplePredicate predicate)

To find the first object in a collection that fulfills the condition evaluated by the given predicate

Returns:

The first object found or null if no object found

findAll

public static <T> List<T> findAll(Collection<T> sourceList,
 SimplePredicate predicate)

To find all objects in a collection that fulfill the condition evaluated by the given predicate

Returns:

The first object found or null if no object found