Package it.unimi.dsi.fastutil.bytes

Class Byte2ObjectRBTreeMap<V>

java.lang.Object
it.unimi.dsi.fastutil.bytes.AbstractByte2ObjectFunction<V>
it.unimi.dsi.fastutil.bytes.AbstractByte2ObjectMap<V>
it.unimi.dsi.fastutil.bytes.AbstractByte2ObjectSortedMap<V>
it.unimi.dsi.fastutil.bytes.Byte2ObjectRBTreeMap<V>
All Implemented Interfaces:
it.unimi.dsi.fastutil.bytes.Byte2ObjectFunction<V>, Byte2ObjectMap<V>, Byte2ObjectSortedMap<V>, it.unimi.dsi.fastutil.Function<java.lang.Byte,​V>, java.io.Serializable, java.lang.Cloneable, java.util.function.Function<java.lang.Byte,​V>, java.util.function.IntFunction<V>, java.util.Map<java.lang.Byte,​V>, java.util.SortedMap<java.lang.Byte,​V>
public class Byte2ObjectRBTreeMap<V>
extends AbstractByte2ObjectSortedMap<V>
implements java.io.Serializable, java.lang.Cloneable
A type-specific red-black tree map with a fast, small-footprint implementation.

The iterators provided by the views of this class are type-specific bidirectional iterators. Moreover, the iterator returned by iterator() can be safely cast to a type-specific list iterator.

See Also:
Serialized Form

  • Constructor Details

    • Byte2ObjectRBTreeMap

      public Byte2ObjectRBTreeMap()
      Creates a new empty tree map.

    • Byte2ObjectRBTreeMap

      public Byte2ObjectRBTreeMap​(java.util.Comparator<? super java.lang.Byte> c)
      Creates a new empty tree map with the given comparator.
      Parameters:
      c - a (possibly type-specific) comparator.

    • Byte2ObjectRBTreeMap

      public Byte2ObjectRBTreeMap​(java.util.Map<? extends java.lang.Byte,​? extends V> m)
      Creates a new tree map copying a given map.
      Parameters:
      m - a Map to be copied into the new tree map.

    • Byte2ObjectRBTreeMap

      public Byte2ObjectRBTreeMap​(java.util.SortedMap<java.lang.Byte,​V> m)
      Creates a new tree map copying a given sorted map (and its Comparator).
      Parameters:
      m - a SortedMap to be copied into the new tree map.

    • Byte2ObjectRBTreeMap

      public Byte2ObjectRBTreeMap​(Byte2ObjectMap<? extends V> m)
      Creates a new tree map copying a given map.
      Parameters:
      m - a type-specific map to be copied into the new tree map.

    • Byte2ObjectRBTreeMap

      public Byte2ObjectRBTreeMap​(Byte2ObjectSortedMap<V> m)
      Creates a new tree map copying a given sorted map (and its Comparator).
      Parameters:
      m - a type-specific sorted map to be copied into the new tree map.

    • Byte2ObjectRBTreeMap

      public Byte2ObjectRBTreeMap​(byte[] k, V[] v, java.util.Comparator<? super java.lang.Byte> c)
      Creates a new tree map using the elements of two parallel arrays and the given comparator.
      Parameters:
      k - the array of keys of the new tree map.
      v - the array of corresponding values in the new tree map.
      c - a (possibly type-specific) comparator.
      Throws:
      java.lang.IllegalArgumentException - if k and v have different lengths.

    • Byte2ObjectRBTreeMap

      public Byte2ObjectRBTreeMap​(byte[] k, V[] v)
      Creates a new tree map using the elements of two parallel arrays.
      Parameters:
      k - the array of keys of the new tree map.
      v - the array of corresponding values in the new tree map.
      Throws:
      java.lang.IllegalArgumentException - if k and v have different lengths.

  • Method Details

    • put

      public V put​(byte k, V v)
      Specified by:
      put in interface it.unimi.dsi.fastutil.bytes.Byte2ObjectFunction<V>

    • remove

      public V remove​(byte k)
      Specified by:
      remove in interface it.unimi.dsi.fastutil.bytes.Byte2ObjectFunction<V>

    • containsValue

      public boolean containsValue​(java.lang.Object v)
      Description copied from class: AbstractByte2ObjectMap
      Specified by:
      containsValue in interface java.util.Map<java.lang.Byte,​V>
      Overrides:
      containsValue in class AbstractByte2ObjectMap<V>

    • clear

      public void clear()
      Description copied from interface: Byte2ObjectMap
      Removes all of the mappings from this map (optional operation). The map will be empty after this call returns.
      Specified by:
      clear in interface Byte2ObjectMap<V>
      Specified by:
      clear in interface it.unimi.dsi.fastutil.Function<java.lang.Byte,​V>
      Specified by:
      clear in interface java.util.Map<java.lang.Byte,​V>

    • containsKey

      public boolean containsKey​(byte k)
      Description copied from class: AbstractByte2ObjectMap
      Returns true if this function contains a mapping for the specified key.
      Specified by:
      containsKey in interface it.unimi.dsi.fastutil.bytes.Byte2ObjectFunction<V>
      Specified by:
      containsKey in interface Byte2ObjectMap<V>
      Overrides:
      containsKey in class AbstractByte2ObjectMap<V>
      Parameters:
      k - the key.
      Returns:
      true if this function associates a value to key.
      See Also:
      Map.containsKey(Object)

    • size

      public int size()
      Description copied from interface: Byte2ObjectMap
      Returns the number of key/value mappings in this map. If the map contains more than Integer.MAX_VALUE elements, returns Integer.MAX_VALUE.
      Specified by:
      size in interface Byte2ObjectMap<V>
      Specified by:
      size in interface it.unimi.dsi.fastutil.Function<java.lang.Byte,​V>
      Specified by:
      size in interface java.util.Map<java.lang.Byte,​V>
      Returns:
      the number of key-value mappings in this map.
      See Also:
      Size64

    • isEmpty

      public boolean isEmpty()
      Specified by:
      isEmpty in interface java.util.Map<java.lang.Byte,​V>
      Overrides:
      isEmpty in class AbstractByte2ObjectMap<V>

    • get

      public V get​(byte k)
      Specified by:
      get in interface it.unimi.dsi.fastutil.bytes.Byte2ObjectFunction<V>

    • firstByteKey

      public byte firstByteKey()
      Description copied from interface: Byte2ObjectSortedMap
      Returns the first (lowest) key currently in this map.
      Specified by:
      firstByteKey in interface Byte2ObjectSortedMap<V>
      See Also:
      SortedMap.firstKey()

    • lastByteKey

      public byte lastByteKey()
      Description copied from interface: Byte2ObjectSortedMap
      Returns the last (highest) key currently in this map.
      Specified by:
      lastByteKey in interface Byte2ObjectSortedMap<V>
      See Also:
      SortedMap.lastKey()

    • byte2ObjectEntrySet

      public it.unimi.dsi.fastutil.objects.ObjectSortedSet<Byte2ObjectMap.Entry<V>> byte2ObjectEntrySet()
      Description copied from interface: Byte2ObjectSortedMap
      Returns a type-specific sorted-set view of the mappings contained in this map.
      Specified by:
      byte2ObjectEntrySet in interface Byte2ObjectMap<V>
      Specified by:
      byte2ObjectEntrySet in interface Byte2ObjectSortedMap<V>
      Returns:
      a type-specific sorted-set view of the mappings contained in this map.
      See Also:
      Byte2ObjectSortedMap.entrySet()

    • keySet

      public ByteSortedSet keySet()
      Returns a type-specific sorted set view of the keys contained in this map.

      In addition to the semantics of Map.keySet(), you can safely cast the set returned by this call to a type-specific sorted set interface.

      Specified by:
      keySet in interface Byte2ObjectMap<V>
      Specified by:
      keySet in interface Byte2ObjectSortedMap<V>
      Specified by:
      keySet in interface java.util.Map<java.lang.Byte,​V>
      Specified by:
      keySet in interface java.util.SortedMap<java.lang.Byte,​V>
      Overrides:
      keySet in class AbstractByte2ObjectSortedMap<V>
      Returns:
      a type-specific sorted set view of the keys contained in this map.
      See Also:
      Map.keySet()

    • values

      public it.unimi.dsi.fastutil.objects.ObjectCollection<V> values()
      Returns a type-specific collection view of the values contained in this map.

      In addition to the semantics of Map.values(), you can safely cast the collection returned by this call to a type-specific collection interface.

      Specified by:
      values in interface Byte2ObjectMap<V>
      Specified by:
      values in interface Byte2ObjectSortedMap<V>
      Specified by:
      values in interface java.util.Map<java.lang.Byte,​V>
      Specified by:
      values in interface java.util.SortedMap<java.lang.Byte,​V>
      Overrides:
      values in class AbstractByte2ObjectSortedMap<V>
      Returns:
      a type-specific collection view of the values contained in this map.
      See Also:
      Map.values()

    • comparator

      public ByteComparator comparator()
      Description copied from interface: Byte2ObjectSortedMap
      Returns the comparator associated with this sorted set, or null if it uses its keys' natural ordering.
      Specified by:
      comparator in interface Byte2ObjectSortedMap<V>
      Specified by:
      comparator in interface java.util.SortedMap<java.lang.Byte,​V>
      See Also:
      SortedMap.comparator()

    • headMap

      public Byte2ObjectSortedMap<V> headMap​(byte to)
      Description copied from interface: Byte2ObjectSortedMap
      Returns a view of the portion of this sorted map whose keys are strictly less than toKey.
      Specified by:
      headMap in interface Byte2ObjectSortedMap<V>
      See Also:
      SortedMap.headMap(Object)

    • tailMap

      public Byte2ObjectSortedMap<V> tailMap​(byte from)
      Description copied from interface: Byte2ObjectSortedMap
      Returns a view of the portion of this sorted map whose keys are greater than or equal to fromKey.
      Specified by:
      tailMap in interface Byte2ObjectSortedMap<V>
      See Also:
      SortedMap.tailMap(Object)

    • subMap

      public Byte2ObjectSortedMap<V> subMap​(byte from, byte to)
      Description copied from interface: Byte2ObjectSortedMap
      Returns a view of the portion of this sorted map whose keys range from fromKey, inclusive, to toKey, exclusive.
      Specified by:
      subMap in interface Byte2ObjectSortedMap<V>
      See Also:
      SortedMap.subMap(Object,Object)

    • clone

      public Byte2ObjectRBTreeMap<V> clone()
      Returns a deep copy of this tree map.

      This method performs a deep copy of this tree map; the data stored in the set, however, is not cloned. Note that this makes a difference only for object keys.

      Returns:
      a deep copy of this tree map.