one.microstream.collections.old.OldCollections

public final class OldCollections
extends Object

Some utility functionality for the old, misdesigned, bugged JDK collections that is so obvious but still missing in the JDK that even got implemented here despite having a vastly superior collections framework.

Constructor Summary

Constructors

Constructor Description

OldCollections()

Method Summary

Modifier and Type	Method	Description
`static <C extends Collection<? super E>, E> C`	`addArray(C collection, E... elements)`
`static <C extends Collection<T>, T> C`	`addBatch(C c, Iterable<T> elements)`
`static <C extends Collection<T>, T> C`	`append(C collectionToEnhance, Predicate<? super T> selectionPredicate, Iterable<T> collectionToAppend)`
`static <C extends Collection<T>, T> C`	`append(C collectionToEnhance, Predicate<? super T> selectionPredicate, Iterator<T> iterator)`
`static <C extends Collection<T>, T> C`	`append(C collectionToEnhance, Predicate<? super T> selectionPredicate, T[] arrayToAppend)`
`static StringBuilder`	`appendArray(StringBuilder sb, Object... elements)`
`static StringBuilder`	`appendArraySeperated(StringBuilder sb, char elementSeperator, Object... elements)`
`static StringBuilder`	`appendArraySeperated(StringBuilder sb, String elementSeperator, Object... elements)`
`static StringBuilder`	`appendIterable(StringBuilder sb, Iterable<?> iterable)`
`static StringBuilder`	`appendIterableSeperated(StringBuilder sb, char elementSeperator, Iterable<?> iterable)`
`static StringBuilder`	`appendIterableSeperated(StringBuilder sb, String elementSeperator, Iterable<?> iterable)`
`static <T> ArrayList<T>`	`ArrayList(int initialCapacity, Iterable<T> elements)`
`static <E> ArrayList<E>`	`ArrayList(E... elements)`
`static <E> ArrayList<E>`	`ArrayList(XGettingCollection<? extends E> xCollection)`	Convenience method for `new ArrayList<E>(xCollection)`.
`static <T, L extends List<T> & RandomAccess> boolean`	`containsSearched(L list, Predicate<? super T> predicate)`
`static <T, L extends List<T> & RandomAccess> int`	`count(L list, Predicate<? super T> predicate)`
`static <C extends Collection<T>, T> C`	`filter(C sourceCollection, Predicate<? super T> selectionPredicate, C target)`
`static <T> ArrayList<T>`	`filter(ArrayList<T> arrayList, Predicate<? super T> selectionPredicate)`
`static <T, L extends List<T> & RandomAccess> L`	`filter(L list, Predicate<? super T> selectionPredicate, L targetList)`
`static <E> LinkedList<E>`	`LinkedList(E... elements)`
`static <E> LinkedList<E>`	`LinkedList(XGettingCollection<? extends E> xCollection)`
`static <K, V, T extends Map<K, V>, S extends Map<? extends K, ? extends V>> T`	`mergeInto(T target, S... maps)`
`static <K, V> HashMap<K,V>`	`OldHashMap(KeyValue<? extends K,? extends V>... keyValueTuples)`
`static <T> HashSet<T>`	`OldHashSet(T... elements)`
`static <K, V> LinkedHashMap<K,V>`	`OldLinkedHashMap(XGettingMap<K,V> map)`
`static void`	`populateCollection(Collection<Object> instance, Object[] elements)`
`static void`	`populateCollectionFromHelperArray(Collection<?> instance, Object elementsHelper)`
`static void`	`populateMap(Map<Object,Object> instance, Object[] elements)`
`static void`	`populateMapFromHelperArray(Map<?,?> instance, Object elementsHelper)`
`static <C extends Collection<T>, T> C`	`reduce(C collection, Predicate<? super T> reductionPredicate)`	Reduces `collection` by all elements that meet `reductionPredicate`. Note that NO new collection instance is created but the collection itself is reduced.
`static <T> ArrayList<T>`	`reduce(ArrayList<T> arrayList, Predicate<? super T> reductionPredicate)`
`static <T, L extends List<T> & RandomAccess> T`	`search(L list, Predicate<? super T> predicate)`
`static StringBuilder`	`stringBuilder(Object... elements)`
`static StringBuilder`	`stringBuilderSeperated(char elementSeperator, Object... elements)`
`static StringBuilder`	`stringBuilderSeperated(String elementSeperator, Object... elements)`
`static <T> T[]`	`toArray(Collection<? extends T> collection, Class<T> elementType)`	Alias for the annoying `collection.toArray((T[])Array.newInstance(elementType, collection.size()))`

Methods inherited from class java.lang.Object

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

Constructor Details
- OldCollections
  
  public OldCollections()
Method Details
- addBatch
  
  public static final <C extends Collection<T>, T> C addBatch(C c, Iterable<T> elements)
- addArray
  
  @SafeVarargs public static final <C extends Collection<? super E>, E> C addArray(C collection, E... elements)
- ArrayList
  
  @SafeVarargs public static final <E> ArrayList<E> ArrayList(E... elements)
- ArrayList
  
  public static final <T> ArrayList<T> ArrayList(int initialCapacity, Iterable<T> elements)
- LinkedList
  
  @SafeVarargs public static final <E> LinkedList<E> LinkedList(E... elements)
- LinkedList
  
  public static final <E> LinkedList<E> LinkedList(XGettingCollection<? extends E> xCollection)
- mergeInto
  
  @SafeVarargs public static <K, V, T extends Map<K, V>, S extends Map<? extends K, ? extends V>> T mergeInto(T target, S... maps)
- count
  
  public static final <T, L extends List<T> & RandomAccess> int count(L list, Predicate<? super T> predicate)
- search
  
  public static final <T, L extends List<T> & RandomAccess> T search(L list, Predicate<? super T> predicate)
- containsSearched
  
  public static final <T, L extends List<T> & RandomAccess> boolean containsSearched(L list, Predicate<? super T> predicate)
- append
  
  public static <C extends Collection<T>, T> C append(C collectionToEnhance, Predicate<? super T> selectionPredicate, T[] arrayToAppend)
- append
  
  public static <C extends Collection<T>, T> C append(C collectionToEnhance, Predicate<? super T> selectionPredicate, Iterator<T> iterator)
- append
  
  public static <C extends Collection<T>, T> C append(C collectionToEnhance, Predicate<? super T> selectionPredicate, Iterable<T> collectionToAppend)
- filter
  
  public static <T> ArrayList<T> filter(ArrayList<T> arrayList, Predicate<? super T> selectionPredicate)
- filter
  
  public static <T, L extends List<T> & RandomAccess> L filter(L list, Predicate<? super T> selectionPredicate, L targetList)
- filter
  
  public static <C extends Collection<T>, T> C filter(C sourceCollection, Predicate<? super T> selectionPredicate, C target)
- reduce
  
  public static <T> ArrayList<T> reduce(ArrayList<T> arrayList, Predicate<? super T> reductionPredicate)
- reduce
  
  public static <C extends Collection<T>, T> C reduce(C collection, Predicate<? super T> reductionPredicate)
  
  Reduces collection by all elements that meet reductionPredicate.
  Note that NO new collection instance is created but the collection itself is reduced.
  
  Type Parameters:
  
  T -
  
  Parameters:
  
  collection - the collection to be reduced
  
  reductionPredicate - the predicate determining which elements shall be removed
  
  Returns:
  
  collection itself
- appendIterableSeperated
  
  public static final StringBuilder appendIterableSeperated(StringBuilder sb, String elementSeperator, Iterable<?> iterable)
- appendIterableSeperated
  
  public static final StringBuilder appendIterableSeperated(StringBuilder sb, char elementSeperator, Iterable<?> iterable)
- appendIterable
  
  public static final StringBuilder appendIterable(StringBuilder sb, Iterable<?> iterable)
- appendArraySeperated
  
  public static final StringBuilder appendArraySeperated(StringBuilder sb, String elementSeperator, Object... elements)
- appendArraySeperated
  
  public static final StringBuilder appendArraySeperated(StringBuilder sb, char elementSeperator, Object... elements)
- appendArray
  
  public static final StringBuilder appendArray(StringBuilder sb, Object... elements)
- stringBuilderSeperated
  
  public static final StringBuilder stringBuilderSeperated(String elementSeperator, Object... elements)
- stringBuilderSeperated
  
  public static final StringBuilder stringBuilderSeperated(char elementSeperator, Object... elements)
- stringBuilder
  
  public static final StringBuilder stringBuilder(Object... elements)
- toArray
  
  public static final <T> T[] toArray(Collection<? extends T> collection, Class<T> elementType)
  
  Alias for the annoying collection.toArray((T[])Array.newInstance(elementType, collection.size()))
  
  Type Parameters:
  
  T - the element type parameter of the list
  
  Parameters:
  
  collection - the collection whose elements shall be copied to an array
  
  elementType - the type of the elements contained in collection.
  
  Returns:
  
  a new array object of type containing all elements of collection.
- OldHashSet
  
  @SafeVarargs public static <T> HashSet<T> OldHashSet(T... elements)
- OldHashMap
  
  @SafeVarargs public static <K, V> HashMap<K,V> OldHashMap(KeyValue<? extends K,? extends V>... keyValueTuples)
- OldLinkedHashMap
  
  public static final <K, V> LinkedHashMap<K,V> OldLinkedHashMap(XGettingMap<K,V> map)
- ArrayList
  
  public static final <E> ArrayList<E> ArrayList(XGettingCollection<? extends E> xCollection)
  
  Convenience method for new ArrayList<E>(xCollection).
  
  Type Parameters:
  
  E - the collection element type.
  
  Parameters:
  
  xCollection - the extended collection implementation whore content shall be copied a newArrayList instance.
  
  Returns:
  
  a new ArrayList instance containing all elements of the passed XGettingCollection.
- populateMapFromHelperArray
  
  public static final void populateMapFromHelperArray(Map<?,?> instance, Object elementsHelper)
- populateMap
  
  public static final void populateMap(Map<Object,Object> instance, Object[] elements)
- populateCollectionFromHelperArray
  
  public static final void populateCollectionFromHelperArray(Collection<?> instance, Object elementsHelper)
- populateCollection
  
  public static final void populateCollection(Collection<Object> instance, Object[] elements)

Class OldCollections

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Details

Method Details