Package gnu.trove.map

Interface TDoubleDoubleMap

All Known Implementing Classes:
TDoubleDoubleHashMap, TSynchronizedDoubleDoubleMap, TUnmodifiableDoubleDoubleMap

public interface TDoubleDoubleMap
Interface for a primitive map of double keys and double values.
  • Method Summary

    Modifier and Type
    Method
    Description
    double
    adjustOrPutValue(double key, double adjust_amount, double put_amount)
    Adjusts the primitive value mapped to the key if the key is present in the map.
    boolean
    adjustValue(double key, double amount)
    Adjusts the primitive value mapped to key.
    void
    Empties the map.
    boolean
    containsKey(double key)
    Checks for the present of key in the keys of the map.
    boolean
    containsValue(double val)
    Checks for the presence of val in the values of the map.
    boolean
    Executes procedure for each key/value entry in the map.
    boolean
    Executes procedure for each key in the map.
    boolean
    Executes procedure for each value in the map.
    double
    get(double key)
    Retrieves the value for key.
    double
    Returns the value that will be returned from get(double) or put(double, double) if no entry exists for a given key.
    double
    Returns the value that will be returned from get(double) or put(double, double) if no entry exists for a given key.
    boolean
    increment(double key)
    Increments the primitive value mapped to key by 1
    boolean
    Returns true if this map contains no key-value mappings.
     
    double[]
    Returns the keys of the map as an array of double values.
    double[]
    keys(double[] array)
    Returns the keys of the map.
    Returns the keys of the map as a TDoubleSet
    double
    put(double key, double value)
    Inserts a key/value pair into the map.
    void
    Put all the entries from the given map into this map.
    void
    putAll(Map<? extends Double,? extends Double> map)
    Put all the entries from the given Map into this map.
    double
    putIfAbsent(double key, double value)
    Inserts a key/value pair into the map if the specified key is not already associated with a value.
    double
    remove(double key)
    Deletes a key/value pair from the map.
    boolean
    Retains only those entries in the map for which the procedure returns a true value.
    int
    Returns an int value that is the number of elements in the map.
    void
    Transform the values in this map using function.
    Returns the values of the map as a TDoubleCollection
    double[]
    Returns the values of the map as an array of #e# values.
    double[]
    values(double[] array)
    Returns the values of the map using an existing array.
  • Method Details

    • getNoEntryKey

      double getNoEntryKey()
      Returns the value that will be returned from get(double) or put(double, double) if no entry exists for a given key. The default value is generally zero, but can be configured during construction of the collection.
      Returns:
      the value that represents a null key in this collection.
    • getNoEntryValue

      double getNoEntryValue()
      Returns the value that will be returned from get(double) or put(double, double) if no entry exists for a given key. The default value is generally zero, but can be configured during construction of the collection.
      Returns:
      the value that represents a null value in this collection.
    • put

      double put(double key, double value)
      Inserts a key/value pair into the map.
      Returns:
      the previous value associated with key, or the "no entry" value if none was found (see getNoEntryValue()).
    • putIfAbsent

      double putIfAbsent(double key, double value)
      Inserts a key/value pair into the map if the specified key is not already associated with a value.
      Returns:
      the previous value associated with key, or the "no entry" value if none was found (see getNoEntryValue()).
    • putAll

      void putAll(Map<? extends Double,? extends Double> map)
      Put all the entries from the given Map into this map.
      Parameters:
      map - The Map from which entries will be obtained to put into this map.
    • putAll

      void putAll(TDoubleDoubleMap map)
      Put all the entries from the given map into this map.
      Parameters:
      map - The map from which entries will be obtained to put into this map.
    • get

      double get(double key)
      Retrieves the value for key.
      Returns:
      the previous value associated with key, or the "no entry" value if none was found (see getNoEntryValue()).
    • clear

      void clear()
      Empties the map.
    • isEmpty

      boolean isEmpty()
      Returns true if this map contains no key-value mappings.
      Returns:
      true if this map contains no key-value mappings
    • remove

      double remove(double key)
      Deletes a key/value pair from the map.
      Parameters:
      key - an double value
      Returns:
      the previous value associated with key, or the "no entry" value if none was found (see getNoEntryValue()).
    • size

      int size()
      Returns an int value that is the number of elements in the map.
      Returns:
      an int value that is the number of elements in the map.
    • keySet

      TDoubleSet keySet()
      Returns the keys of the map as a TDoubleSet
      Returns:
      the keys of the map as a TDoubleSet
    • keys

      double[] keys()
      Returns the keys of the map as an array of double values.
      Returns:
      the keys of the map as an array of double values.
    • keys

      double[] keys(double[] array)
      Returns the keys of the map.
      Parameters:
      array - the array into which the elements of the list are to be stored, if it is big enough; otherwise, a new array of the same type is allocated for this purpose.
      Returns:
      the keys of the map as an array.
    • valueCollection

      TDoubleCollection valueCollection()
      Returns the values of the map as a TDoubleCollection
      Returns:
      the values of the map as a TDoubleCollection
    • values

      double[] values()
      Returns the values of the map as an array of #e# values.
      Returns:
      the values of the map as an array of #e# values.
    • values

      double[] values(double[] array)
      Returns the values of the map using an existing array.
      Parameters:
      array - the array into which the elements of the list are to be stored, if it is big enough; otherwise, a new array of the same type is allocated for this purpose.
      Returns:
      the values of the map as an array of #e# values.
    • containsValue

      boolean containsValue(double val)
      Checks for the presence of val in the values of the map.
    • containsKey

      boolean containsKey(double key)
      Checks for the present of key in the keys of the map.
    • iterator

      Returns:
      a TDoubleDoubleIterator with access to this map's keys and values
    • forEachKey

      boolean forEachKey(TDoubleProcedure procedure)
      Executes procedure for each key in the map.
      Parameters:
      procedure - a TDoubleProcedure value
      Returns:
      false if the loop over the keys terminated because the procedure returned false for some key.
    • forEachValue

      boolean forEachValue(TDoubleProcedure procedure)
      Executes procedure for each value in the map.
      Parameters:
      procedure - a T#F#Procedure value
      Returns:
      false if the loop over the values terminated because the procedure returned false for some value.
    • forEachEntry

      boolean forEachEntry(TDoubleDoubleProcedure procedure)
      Executes procedure for each key/value entry in the map.
      Parameters:
      procedure - a TODoubleDoubleProcedure value
      Returns:
      false if the loop over the entries terminated because the procedure returned false for some entry.
    • transformValues

      void transformValues(TDoubleFunction function)
      Transform the values in this map using function.
      Parameters:
      function - a TDoubleFunction value
    • retainEntries

      boolean retainEntries(TDoubleDoubleProcedure procedure)
      Retains only those entries in the map for which the procedure returns a true value.
      Parameters:
      procedure - determines which entries to keep
      Returns:
      true if the map was modified.
    • increment

      boolean increment(double key)
      Increments the primitive value mapped to key by 1
      Parameters:
      key - the key of the value to increment
      Returns:
      true if a mapping was found and modified.
    • adjustValue

      boolean adjustValue(double key, double amount)
      Adjusts the primitive value mapped to key.
      Parameters:
      key - the key of the value to increment
      amount - the amount to adjust the value by.
      Returns:
      true if a mapping was found and modified.
    • adjustOrPutValue

      double adjustOrPutValue(double key, double adjust_amount, double put_amount)
      Adjusts the primitive value mapped to the key if the key is present in the map. Otherwise, the put_amount is put in the map.
      Parameters:
      key - the key of the value to increment
      adjust_amount - the amount to adjust the value by
      put_amount - the value put into the map if the key is not present
      Returns:
      the value present in the map after the adjustment or put operation