Package org.opennms.core.utils

Class MutableCollections

java.lang.Object

org.opennms.core.utils.MutableCollections

public class MutableCollections
extends Object

Convenience Methods for handling mutable Collections.

Author:

mbrooks

Constructor Summary

Constructors

Constructor	Description
MutableCollections()

Method Summary

Modifier and Type	Method	Description
static <T> List<T>	copyListFromNullable(Collection<T> toCopy)
static <T> List<T>	copyListFromNullable(Collection<T> toCopy, java.util.function.Supplier<List<T>> listSupplier)	Copy a Collection to a List.
static <T,S> Map<T,S>	copyMapFromNullable(Map<T,S> toCopy)
static <T,S> Map<T,S>	copyMapFromNullable(Map<T,S> toCopy, java.util.function.Supplier<Map<T,S>> mapSupplier)	Copy a Map.

Methods inherited from class java.lang.Object

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

Constructor Detail

MutableCollections

public MutableCollections()

Method Detail

copyListFromNullable

public static <T> List<T> copyListFromNullable(Collection<T> toCopy,
                                               java.util.function.Supplier<List<T>> listSupplier)

Copy a Collection to a List.

Parameters:

toCopy - the Collection to copy

listSupplier - the supplier for the desired List type

Returns:

a new List containing the same elements as the given Collection

copyListFromNullable

public static <T> List<T> copyListFromNullable(Collection<T> toCopy)

copyMapFromNullable

public static <T,S> Map<T,S> copyMapFromNullable(Map<T,S> toCopy,
                                                             java.util.function.Supplier<Map<T,S>> mapSupplier)

Copy a Map.

Parameters:

toCopy - the Map to copy

mapSupplier - the supplier for the desired Map type

Returns:

a new Map containing the same elements as the given Map

copyMapFromNullable

public static <T,S> Map<T,S> copyMapFromNullable(Map<T,S> toCopy)