Package com.priint.pubserver.util

Class CollectionUtils

java.lang.Object

com.priint.pubserver.util.CollectionUtils

public class CollectionUtils
extends Object

Various static helper methods for Collections

Method Summary

Modifier and Type	Method	Description
static <T extends GetIdentifier & GetContext> T	findByIdAndContext(Collection<T> c, String identifier, Context context)	Looks up an element of a Collection by its identifier (via GetIdentifier) and Context (via GetContext).
static <T> List<T>	getListSortedByComparator(List<T> l, Comparator<T> comp)	Sorts a List by a Comparator and returns the sorted list.
static <T extends GetSequence> List<T>	getListSortedBySequence(List<T> l)	Sorts a List of elements implementing GetSequence by their sequence.

Methods inherited from class java.lang.Object

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

Method Details

findByIdAndContext

public static <T extends GetIdentifier & GetContext>
T findByIdAndContext(Collection<T> c,
 String identifier,
 Context context)

Looks up an element of a Collection by its identifier (via GetIdentifier) and Context (via GetContext). Returns the first element where the identifier and the context are equal to the parameters.

Parameters:

c - The Collection to search

identifier - The identifier to match

context - The Context to match

Returns:

The first element of the collection where the identifier and the context are equal to the parameters.

getListSortedByComparator

public static <T> List<T> getListSortedByComparator(List<T> l,
 Comparator<T> comp)

Sorts a List by a Comparator and returns the sorted list.

Parameters:

l - The list to sort

comp - The comparator

Returns:

The sorted list

See Also:

• Collections.sort(List, Comparator)

getListSortedBySequence

public static <T extends GetSequence> List<T> getListSortedBySequence(List<T> l)

Sorts a List of elements implementing GetSequence by their sequence.

Parameters:

l - The list to sort

Returns:

The sorted list

See Also:

• getListSortedByComparator(List, Comparator)