Package tools.refinery.interpreter.matchers.util

Class CollectionsFactory

java.lang.Object

tools.refinery.interpreter.matchers.util.CollectionsFactory

public final class CollectionsFactory
extends Object

Factory class used as an accessor to Collections implementations.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	CollectionsFactory.ICollectionsFramework	Interface abstracting over a collections technology that provides custom collection implementations.
static enum	CollectionsFactory.MemoryType	The type of IMemory

Constructor Summary

Constructors

Constructor	Description
CollectionsFactory()

Method Summary

Modifier and Type	Method	Description
static <T> IDeltaBag<T>	createDeltaBag()	Instantiates a new empty delta bag.
static <K, V> Map<K,V>	createMap()	Instantiates a new empty map.
static <K, V> Map<K,V>	createMap(Map<K,V> initial)	Instantiates a new map with the given initial contents.
static <T> IMemory<T>	createMemory(Class<? super T> values, CollectionsFactory.MemoryType memoryType)	Instantiates a memory storing values.
static <K, V> IMultiLookup<K,V>	createMultiLookup(Class<? super K> fromKeys, CollectionsFactory.MemoryType toBuckets, Class<? super V> ofValues)	Instantiates a size-optimized multimap from keys to sets of values.
static <T> IMultiset<T>	createMultiset()	Instantiates a new empty multiset.
static <O> List<O>	createObserverList()	Instantiates a new list that is optimized for registering observers / callbacks.
static <E> Set<E>	createSet()	Instantiates a new empty set.
static <E> Set<E>	createSet(Collection<E> initial)	Instantiates a new set with the given initial contents.
static <K, V> TreeMap<K,V>	createTreeMap()	Instantiates a new tree map.
static <T> IMultiset<T>	emptyMultiset(Object key)	Instantiates an empty multiset; the key parameter is used to allow using this as a method reference as a Function, e.g.
static <T> Set<T>	emptySet(Object key)	Instantiates an empty set; the key parameter is used to allow using this as a method reference as a Function, e.g.

Methods inherited from class java.lang.Object

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

Constructor Details

CollectionsFactory

public CollectionsFactory()

Method Details

createMap

public static <K,
V> Map<K,V> createMap()

Instantiates a new empty map.

Since:

1.7

createMap

public static <K,
V> Map<K,V> createMap(Map<K,V> initial)

Instantiates a new map with the given initial contents.

Since:

1.7

createTreeMap

public static <K,
V> TreeMap<K,V> createTreeMap()

Instantiates a new tree map.

Since:

2.3

createSet

public static <E> Set<E> createSet()

Instantiates a new empty set.

Since:

1.7

createSet

public static <E> Set<E> createSet(Collection<E> initial)

Instantiates a new set with the given initial contents.

Since:

1.7

emptySet

public static <T> Set<T> emptySet(Object key)

Instantiates an empty set; the key parameter is used to allow using this as a method reference as a Function, e.g. in Map.computeIfAbsent(Object, Function).

Parameters:

key - the value of this parameter is ignored

Since:

2.0

createMultiset

public static <T> IMultiset<T> createMultiset()

Instantiates a new empty multiset.

Since:

1.7

emptyMultiset

public static <T> IMultiset<T> emptyMultiset(Object key)

Instantiates an empty multiset; the key parameter is used to allow using this as a method reference as a Function, e.g. in Map.computeIfAbsent(Object, Function).

Parameters:

key - the value of this parameter is ignored

Since:

2.0

createDeltaBag

public static <T> IDeltaBag<T> createDeltaBag()

Instantiates a new empty delta bag.

Since:

1.7

createObserverList

public static <O> List<O> createObserverList()

Instantiates a new list that is optimized for registering observers / callbacks.

Since:

1.7

createMultiLookup

public static <K,
V> IMultiLookup<K,V> createMultiLookup(Class<? super K> fromKeys,
 CollectionsFactory.MemoryType toBuckets,
 Class<? super V> ofValues)

Instantiates a size-optimized multimap from keys to sets of values.

For a single key, many values can be associated according to the given bucket semantics.

The keys and values are stored as type fromKeys resp. ofValues; currently Object.class and Long.class are supported.

Since:

2.0

createMemory

public static <T> IMemory<T> createMemory(Class<? super T> values,
 CollectionsFactory.MemoryType memoryType)

Instantiates a memory storing values.

For a single key, many values can be associated according to the given memory semantics.

The values are stored as type 'values'; currently Object.class and Long.class are supported.

Since:

2.0