Package de.alpharogroup.collections.map

Class MapFactory

  • public final class MapFactory
extends java.lang.Object
    The factory class MapFactory provides factory methods for create new Map objects

    • Constructor Summary

      Constructors 
      Constructor Description
      MapFactory()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static java.util.Map<java.lang.Integer,​java.util.Map<java.lang.String,​java.lang.String>> newAssosiativeArrayMap()
      Factory method for Map that acts like a javascript associative array.
      static <K,​V>
      java.util.concurrent.ConcurrentHashMap<K,​V>      		 newConcurrentHashMap()
      Factory method for create a new ConcurrentHashMap
      static <K,​V>
      java.util.concurrent.ConcurrentHashMap<K,​V>      		 newConcurrentHashMap​(int initialCapacity)
      Factory method for create a new ConcurrentHashMap
      static <K,​V>
      java.util.concurrent.ConcurrentHashMap<K,​V>      		 newConcurrentHashMap​(@NonNull java.util.Map<K,​V> map)
      Factory method for create a new ConcurrentHashMap
      static <K> java.util.Map<K,​java.lang.Integer> newCounterMap​(@NonNull java.util.Collection<K> elements)
      Factory method for create a map for counting elements of the given collection
      static <K,​V>
      java.util.Map<K,​V>      		 newHashMap()
      Factory method for create a new HashMap
      static <K,​V>
      java.util.Map<K,​V>      		 newHashMap​(int initialCapacity)
      Factory method for create a new HashMap
      static <K,​V>
      java.util.Map<K,​V>      		 newHashMap​(@NonNull de.alpharogroup.collections.pairs.KeyValuePair<K,​V>... keyValuePairs)
      Factory method for create a new HashMap
      static <K,​V>
      java.util.Map<K,​V>      		 newHashMap​(@NonNull java.util.Collection<de.alpharogroup.collections.pairs.KeyValuePair<K,​V>> keyValuePairs)
      Factory method for create a new HashMap
      static <K,​V>
      java.util.Map<K,​V>      		 newHashMap​(@NonNull java.util.Map<K,​V> map)
      Factory method for create a new HashMap
      static <K,​V>
      java.util.Map<K,​V>      		 newInsertionOrderMap()
      Factory method for create a new InsertionOrderMap
      static <K,​V>
      java.util.Map<K,​V>      		 newInsertionOrderMap​(int initialCapacity)
      Factory method for create a new InsertionOrderMap
      static <K,​V>
      java.util.Map<K,​V>      		 newInsertionOrderMap​(@NonNull de.alpharogroup.collections.pairs.KeyValuePair<K,​V>... keyValuePairs)
      Factory method for create a new InsertionOrderMap
      static <K,​V>
      java.util.Map<K,​V>      		 newInsertionOrderMap​(@NonNull java.util.Collection<de.alpharogroup.collections.pairs.KeyValuePair<K,​V>> keyValuePairs)
      Factory method for create a new InsertionOrderMap
      static <K,​V>
      java.util.Map<K,​V>      		 newInsertionOrderMap​(@NonNull java.util.Map<K,​V> map)
      Factory method for create a new InsertionOrderMap
      static <K,​V>
      java.util.Map<K,​V>      		 newLazyHashMap()
      Factory method for create a new LazyMap from commons-collections4 that encapsulates a HashMap
      static <K,​V>
      java.util.Map<K,​V>      		 newLazyHashMap​(java.util.HashMap<K,​V> map)
      Factory method for create a new LazyMap from commons-collections4 that encapsulates a HashMap
      static <K,​V>
      java.util.Map<K,​V>      		 newLazyMap()
      Factory method for create a new LazyMap from commons-collections4 that encapsulates a HashMap
      static <K,​V>
      java.util.Map<K,​V>      		 newLazyTreeMap()
      Factory method for create a new LazyMap from commons-collections4 that encapsulates a TreeMap
      static <K,​V>
      java.util.Map<K,​V>      		 newLazyTreeMap​(@NonNull java.util.Comparator<? super K> comparator)
      Factory method for create a new LazyMap from commons-collections4 that encapsulates a TreeMap
      static <K,​V>
      java.util.Map<K,​V>      		 newLazyTreeMap​(@NonNull java.util.TreeMap<K,​V> map)
      Factory method for create a new LazyMap from commons-collections4 that encapsulates a TreeMap
      static <K,​V>
      java.util.Map<K,​V>      		 newLinkedHashMap()
      Factory method for create a new LinkedHashMap
      static <K,​V>
      java.util.Map<K,​V>      		 newLinkedHashMap​(int initialCapacity)
      Factory method for create a new LinkedHashMap
      static <K,​V>
      java.util.Map<K,​V>      		 newLinkedHashMap​(@NonNull de.alpharogroup.collections.pairs.KeyValuePair<K,​V>... keyValuePairs)
      Factory method for create a new LinkedHashMap
      static <K,​V>
      java.util.Map<K,​V>      		 newLinkedHashMap​(@NonNull java.util.Collection<de.alpharogroup.collections.pairs.KeyValuePair<K,​V>> keyValuePairs)
      Factory method for create a new LinkedHashMap
      static <K,​V>
      java.util.Map<K,​V>      		 newLinkedHashMap​(@NonNull java.util.Map<K,​V> map)
      Factory method for create a new LinkedHashMap
      static <K,​V>
      java.util.Map<K,​V>      		 newTreeMap()
      Factory method for create a new TreeMap
      static <K,​V>
      java.util.Map<K,​V>      		 newTreeMap​(@NonNull de.alpharogroup.collections.pairs.KeyValuePair<K,​V>... keyValuePairs)
      Factory method for create a new TreeMap
      static <K,​V>
      java.util.Map<K,​V>      		 newTreeMap​(@NonNull java.util.Collection<de.alpharogroup.collections.pairs.KeyValuePair<K,​V>> keyValuePairs)
      Factory method for create a new TreeMap
      static <K,​V>
      java.util.Map<K,​V>      		 newTreeMap​(@NonNull java.util.Comparator<? super K> comparator)
      Factory method for create a new TreeMap
      static <K,​V>
      java.util.Map<K,​V>      		 newTreeMap​(@NonNull java.util.Comparator<? super K> comparator, @NonNull de.alpharogroup.collections.pairs.KeyValuePair<K,​V>... keyValuePairs)
      Factory method for create a new TreeMap
      static <K,​V>
      java.util.Map<K,​V>      		 newTreeMap​(@NonNull java.util.Comparator<? super K> comparator, @NonNull java.util.Collection<de.alpharogroup.collections.pairs.KeyValuePair<K,​V>> keyValuePairs)
      Factory method for create a new TreeMap
      static <K,​V>
      java.util.Map<K,​V>      		 newTreeMap​(@NonNull java.util.Map<K,​V> map)
      Factory method for create a new TreeMap

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • MapFactory

        public MapFactory()

    • Method Detail

      • newCounterMap

        public static <K> java.util.Map<K,​java.lang.Integer> newCounterMap​(@NonNull
                                                                         @NonNull java.util.Collection<K> elements)
        Factory method for create a map for counting elements of the given collection
        Type Parameters:
        K - the generic type of the elements
        Parameters:
        elements - the elements
        Returns:
        the new map ready to count elements

      • newInsertionOrderMap

        public static <K,​V> java.util.Map<K,​V> newInsertionOrderMap()
        Factory method for create a new InsertionOrderMap
        Type Parameters:
        K - the generic type of the key
        V - the generic type of the value
        Returns:
        The new InsertionOrderMap

      • newInsertionOrderMap

        public static <K,​V> java.util.Map<K,​V> newInsertionOrderMap​(int initialCapacity)
        Factory method for create a new InsertionOrderMap
        Type Parameters:
        K - the generic type of the key
        V - the generic type of the value
        Parameters:
        initialCapacity - the initial capacity
        Returns:
        The new InsertionOrderMap

      • newInsertionOrderMap

        public static <K,​V> java.util.Map<K,​V> newInsertionOrderMap​(@NonNull
                                                                        @NonNull java.util.Map<K,​V> map)
        Factory method for create a new InsertionOrderMap
        Type Parameters:
        K - the generic type of the key
        V - the generic type of the value
        Parameters:
        map - the map
        Returns:
        The new InsertionOrderMap

      • newInsertionOrderMap

        public static <K,​V> java.util.Map<K,​V> newInsertionOrderMap​(@NonNull
                                                                        @NonNull java.util.Collection<de.alpharogroup.collections.pairs.KeyValuePair<K,​V>> keyValuePairs)
        Factory method for create a new InsertionOrderMap
        Type Parameters:
        K - the generic type of the key
        V - the generic type of the value
        Parameters:
        keyValuePairs - the collection with the key value pairs
        Returns:
        The new InsertionOrderMap

      • newInsertionOrderMap

        @SafeVarargs
public static <K,​V> java.util.Map<K,​V> newInsertionOrderMap​(@NonNull
                                                                        @NonNull de.alpharogroup.collections.pairs.KeyValuePair<K,​V>... keyValuePairs)
        Factory method for create a new InsertionOrderMap
        Type Parameters:
        K - the generic type of the key
        V - the generic type of the value
        Parameters:
        keyValuePairs - the key value pairs to add in the new InsertionOrderMap
        Returns:
        The new InsertionOrderMap

      • newAssosiativeArrayMap

        public static java.util.Map<java.lang.Integer,​java.util.Map<java.lang.String,​java.lang.String>> newAssosiativeArrayMap()
        Factory method for Map that acts like a javascript associative array. This Map is the counterpart for the associative array in js. For instance: in js you can create and fetch associative arrays like this: 
         $arrayObj[0]['firstName'] = 'Albert';
 $arrayObj[0]['lastName'] = 'Einstein';
 $arrayObj[1]['firstName'] = 'Neil';
 $arrayObj[0]['lastName'] = 'Armstrong';
        With this method you can do the same like this: 
         final Map<Integer, Map<String, String>> arrayMap = MapExtensions.newAssosiativeArrayMap();

 arrayMap.get(0).put("firstName", "Albert");
 arrayMap.get(0).put("lastName", "Einstein");
 arrayMap.get(1).put("firstName", "Neil");
 arrayMap.get(1).put("lastName", "Armstrong");
        Returns:
        The Map that acts like a javascript associative array

      • newConcurrentHashMap

        public static <K,​V> java.util.concurrent.ConcurrentHashMap<K,​V> newConcurrentHashMap()
        Factory method for create a new ConcurrentHashMap
        Type Parameters:
        K - the generic type of the key
        V - the generic type of the value
        Returns:
        The new ConcurrentHashMap

      • newConcurrentHashMap

        public static <K,​V> java.util.concurrent.ConcurrentHashMap<K,​V> newConcurrentHashMap​(@NonNull
                                                                                                 @NonNull java.util.Map<K,​V> map)
        Factory method for create a new ConcurrentHashMap
        Type Parameters:
        K - the generic type of the key
        V - the generic type of the value
        Parameters:
        map - the map
        Returns:
        The new ConcurrentHashMap

      • newConcurrentHashMap

        public static <K,​V> java.util.concurrent.ConcurrentHashMap<K,​V> newConcurrentHashMap​(int initialCapacity)
        Factory method for create a new ConcurrentHashMap
        Type Parameters:
        K - the generic type of the key
        V - the generic type of the value
        Parameters:
        initialCapacity - the initial capacity
        Returns:
        The new ConcurrentHashMap

      • newHashMap

        public static <K,​V> java.util.Map<K,​V> newHashMap​(int initialCapacity)
        Factory method for create a new HashMap
        Type Parameters:
        K - the generic type of the key
        V - the generic type of the value
        Parameters:
        initialCapacity - the initial capacity
        Returns:
        The new HashMap

      • newHashMap

        public static <K,​V> java.util.Map<K,​V> newHashMap()
        Factory method for create a new HashMap
        Type Parameters:
        K - the generic type of the key
        V - the generic type of the value
        Returns:
        The new HashMap

      • newHashMap

        public static <K,​V> java.util.Map<K,​V> newHashMap​(@NonNull
                                                              @NonNull java.util.Map<K,​V> map)
        Factory method for create a new HashMap
        Type Parameters:
        K - the generic type of the key
        V - the generic type of the value
        Parameters:
        map - the map
        Returns:
        The new HashMap

      • newHashMap

        public static <K,​V> java.util.Map<K,​V> newHashMap​(@NonNull
                                                              @NonNull java.util.Collection<de.alpharogroup.collections.pairs.KeyValuePair<K,​V>> keyValuePairs)
        Factory method for create a new HashMap
        Type Parameters:
        K - the generic type of the key
        V - the generic type of the value
        Parameters:
        keyValuePairs - the collection with the key value pairs
        Returns:
        The new HashMap

      • newHashMap

        @SafeVarargs
public static <K,​V> java.util.Map<K,​V> newHashMap​(@NonNull
                                                              @NonNull de.alpharogroup.collections.pairs.KeyValuePair<K,​V>... keyValuePairs)
        Factory method for create a new HashMap
        Type Parameters:
        K - the generic type of the key
        V - the generic type of the value
        Parameters:
        keyValuePairs - the key value pairs to add in the new HashMap
        Returns:
        The new HashMap

      • newLinkedHashMap

        public static <K,​V> java.util.Map<K,​V> newLinkedHashMap()
        Factory method for create a new LinkedHashMap
        Type Parameters:
        K - the generic type of the key
        V - the generic type of the value
        Returns:
        The new LinkedHashMap

      • newLinkedHashMap

        public static <K,​V> java.util.Map<K,​V> newLinkedHashMap​(@NonNull
                                                                    @NonNull java.util.Map<K,​V> map)
        Factory method for create a new LinkedHashMap
        Type Parameters:
        K - the generic type of the key
        V - the generic type of the value
        Parameters:
        map - the map
        Returns:
        The new LinkedHashMap

      • newLinkedHashMap

        public static <K,​V> java.util.Map<K,​V> newLinkedHashMap​(@NonNull
                                                                    @NonNull java.util.Collection<de.alpharogroup.collections.pairs.KeyValuePair<K,​V>> keyValuePairs)
        Factory method for create a new LinkedHashMap
        Type Parameters:
        K - the generic type of the key
        V - the generic type of the value
        Parameters:
        keyValuePairs - the collection with the key value pairs
        Returns:
        The new LinkedHashMap

      • newLinkedHashMap

        @SafeVarargs
public static <K,​V> java.util.Map<K,​V> newLinkedHashMap​(@NonNull
                                                                    @NonNull de.alpharogroup.collections.pairs.KeyValuePair<K,​V>... keyValuePairs)
        Factory method for create a new LinkedHashMap
        Type Parameters:
        K - the generic type of the key
        V - the generic type of the value
        Parameters:
        keyValuePairs - the key value pairs to add in the new LinkedHashMap
        Returns:
        The new LinkedHashMap

      • newLinkedHashMap

        public static <K,​V> java.util.Map<K,​V> newLinkedHashMap​(int initialCapacity)
        Factory method for create a new LinkedHashMap
        Type Parameters:
        K - the generic type of the key
        V - the generic type of the value
        Parameters:
        initialCapacity - the initial capacity
        Returns:
        The new LinkedHashMap

      • newLazyMap

        public static <K,​V> java.util.Map<K,​V> newLazyMap()
        Factory method for create a new LazyMap from commons-collections4 that encapsulates a HashMap
        Type Parameters:
        K - the generic type of the key
        V - the generic type of the value
        Returns:
        The new LazyMap

      • newLazyHashMap

        public static <K,​V> java.util.Map<K,​V> newLazyHashMap()
        Factory method for create a new LazyMap from commons-collections4 that encapsulates a HashMap
        Type Parameters:
        K - the generic type of the key
        V - the generic type of the value
        Returns:
        The new LazyMap

      • newLazyHashMap

        public static <K,​V> java.util.Map<K,​V> newLazyHashMap​(java.util.HashMap<K,​V> map)
        Factory method for create a new LazyMap from commons-collections4 that encapsulates a HashMap
        Type Parameters:
        K - the generic type of the key
        V - the generic type of the value
        Parameters:
        map - the map to initialize with it
        Returns:
        The new LazyMap

      • newLazyTreeMap

        public static <K,​V> java.util.Map<K,​V> newLazyTreeMap()
        Factory method for create a new LazyMap from commons-collections4 that encapsulates a TreeMap
        Type Parameters:
        K - the generic type of the key
        V - the generic type of the value
        Returns:
        The new LazyMap

      • newLazyTreeMap

        public static <K,​V> java.util.Map<K,​V> newLazyTreeMap​(@NonNull
                                                                  @NonNull java.util.TreeMap<K,​V> map)
        Factory method for create a new LazyMap from commons-collections4 that encapsulates a TreeMap
        Type Parameters:
        K - the generic type of the key
        V - the generic type of the value
        Parameters:
        map - the map
        Returns:
        The new LazyMap

      • newLazyTreeMap

        public static <K,​V> java.util.Map<K,​V> newLazyTreeMap​(@NonNull
                                                                  @NonNull java.util.Comparator<? super K> comparator)
        Factory method for create a new LazyMap from commons-collections4 that encapsulates a TreeMap
        Type Parameters:
        K - the generic type of the key
        V - the generic type of the value
        Parameters:
        comparator - the comparator
        Returns:
        The new LazyMap

      • newTreeMap

        public static <K,​V> java.util.Map<K,​V> newTreeMap()
        Factory method for create a new TreeMap
        Type Parameters:
        K - the generic type of the key
        V - the generic type of the value
        Returns:
        The new TreeMap

      • newTreeMap

        public static <K,​V> java.util.Map<K,​V> newTreeMap​(@NonNull
                                                              @NonNull java.util.Map<K,​V> map)
        Factory method for create a new TreeMap
        Type Parameters:
        K - the generic type of the key
        V - the generic type of the value
        Parameters:
        map - the map
        Returns:
        The new TreeMap

      • newTreeMap

        public static <K,​V> java.util.Map<K,​V> newTreeMap​(@NonNull
                                                              @NonNull java.util.Comparator<? super K> comparator)
        Factory method for create a new TreeMap
        Type Parameters:
        K - the generic type of the key
        V - the generic type of the value
        Parameters:
        comparator - the comparator
        Returns:
        The new TreeMap

      • newTreeMap

        public static <K,​V> java.util.Map<K,​V> newTreeMap​(@NonNull
                                                              @NonNull java.util.Comparator<? super K> comparator,
                                                              @NonNull
                                                              @NonNull java.util.Collection<de.alpharogroup.collections.pairs.KeyValuePair<K,​V>> keyValuePairs)
        Factory method for create a new TreeMap
        Type Parameters:
        K - the generic type of the key
        V - the generic type of the value
        Parameters:
        comparator - the comparator
        keyValuePairs - the key value pairs
        Returns:
        The new TreeMap

      • newTreeMap

        @SafeVarargs
public static <K,​V> java.util.Map<K,​V> newTreeMap​(@NonNull
                                                              @NonNull java.util.Comparator<? super K> comparator,
                                                              @NonNull
                                                              @NonNull de.alpharogroup.collections.pairs.KeyValuePair<K,​V>... keyValuePairs)
        Factory method for create a new TreeMap
        Type Parameters:
        K - the generic type of the key
        V - the generic type of the value
        Parameters:
        comparator - the comparator
        keyValuePairs - the key value pairs to add in the new TreeMap
        Returns:
        The new TreeMap

      • newTreeMap

        public static <K,​V> java.util.Map<K,​V> newTreeMap​(@NonNull
                                                              @NonNull java.util.Collection<de.alpharogroup.collections.pairs.KeyValuePair<K,​V>> keyValuePairs)
        Factory method for create a new TreeMap
        Type Parameters:
        K - the generic type of the key
        V - the generic type of the value
        Parameters:
        keyValuePairs - the collection with the key value pairs
        Returns:
        The new TreeMap

      • newTreeMap

        @SafeVarargs
public static <K,​V> java.util.Map<K,​V> newTreeMap​(@NonNull
                                                              @NonNull de.alpharogroup.collections.pairs.KeyValuePair<K,​V>... keyValuePairs)
        Factory method for create a new TreeMap
        Type Parameters:
        K - the generic type of the key
        V - the generic type of the value
        Parameters:
        keyValuePairs - the key value pairs to add in the new TreeMap
        Returns:
        The new TreeMap