GNU Trove

gnu.trove.map
Interface TCharCharMap

All Known Implementing Classes:
TCharCharHashMap

public interface TCharCharMap

Interface for a primitive map of char keys and char values.


Method Summary
 char adjustOrPutValue(char key, char adjust_amount, char put_amount)
          Adjusts the primitive value mapped to the key if the key is present in the map.
 boolean adjustValue(char key, char amount)
          Adjusts the primitive value mapped to key.
 void clear()
          Empties the map.
 boolean containsKey(char key)
          Checks for the present of key in the keys of the map.
 boolean containsValue(char val)
          Checks for the presence of val in the values of the map.
 boolean forEachEntry(TCharCharProcedure procedure)
          Executes procedure for each key/value entry in the map.
 boolean forEachKey(TCharProcedure procedure)
          Executes procedure for each key in the map.
 boolean forEachValue(TCharProcedure procedure)
          Executes procedure for each value in the map.
 char get(char key)
          Retrieves the value for key
 char getNoEntryKey()
          Returns the value that will be returned from get(char) or put(char, char) if no entry exists for a given key.
 char getNoEntryValue()
          Returns the value that will be returned from get(char) or put(char, char) if no entry exists for a given key.
 boolean increment(char key)
          Increments the primitive value mapped to key by 1
 boolean isEmpty()
          Returns true if this map contains no key-value mappings.
 TCharCharIterator iterator()
           
 char[] keys()
          Returns the keys of the map as an array of char values.
 char[] keys(char[] array)
          Returns the keys of the map.
 TCharSet keySet()
          Returns the keys of the map as a TCharSet
 char put(char key, char value)
          Inserts a key/value pair into the map.
 void putAll(java.util.Map<? extends java.lang.Character,? extends java.lang.Character> map)
          Put all the entries from the given Map into this map.
 void putAll(TCharCharMap map)
          Put all the entries from the given map into this map.
 char putIfAbsent(char key, char value)
          Inserts a key/value pair into the map if the specified key is not already associated with a value.
 char remove(char key)
          Deletes a key/value pair from the map.
 boolean retainEntries(TCharCharProcedure procedure)
          Retains only those entries in the map for which the procedure returns a true value.
 int size()
          Returns an int value that is the number of elements in the map.
 void transformValues(TCharFunction function)
          Transform the values in this map using function.
 TCharCollection valueCollection()
          Returns the values of the map as a TCharCollection
 char[] values()
          Returns the values of the map as an array of #e# values.
 char[] values(char[] array)
          Returns the values of the map using an existing array.
 

Method Detail

getNoEntryKey

char getNoEntryKey()
Returns the value that will be returned from get(char) or put(char, char) if no entry exists for a given key. The default value is generally zero, but can be changed during construction of the collection.

Returns:
the value that represents a null key in this collection.

getNoEntryValue

char getNoEntryValue()
Returns the value that will be returned from get(char) or put(char, char) if no entry exists for a given key. The default value is generally zero, but can be changed during construction of the collection.

Returns:
the value that represents a null value in this collection.

put

char put(char key,
         char value)
Inserts a key/value pair into the map.

Parameters:
key - an char value
value - an char value
Returns:
the previous value associated with key, or the "no entry" value if none was found (see getNoEntryValue()).

putIfAbsent

char putIfAbsent(char key,
                 char value)
Inserts a key/value pair into the map if the specified key is not already associated with a value.

Parameters:
key - an char value
value - an char value
Returns:
the previous value associated with key, or the "no entry" value if none was found (see getNoEntryValue()).

putAll

void putAll(java.util.Map<? extends java.lang.Character,? extends java.lang.Character> 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(TCharCharMap 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

char get(char key)
Retrieves the value for key

Parameters:
key - an char value
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

char remove(char key)
Deletes a key/value pair from the map.

Parameters:
key - an char 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

TCharSet keySet()
Returns the keys of the map as a TCharSet

Returns:
the keys of the map as a TCharSet

keys

char[] keys()
Returns the keys of the map as an array of char values.

Returns:
the keys of the map as an array of char values.

keys

char[] keys(char[] 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

TCharCollection valueCollection()
Returns the values of the map as a TCharCollection

Returns:
the values of the map as a TCharCollection

values

char[] 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

char[] values(char[] 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(char val)
Checks for the presence of val in the values of the map.

Parameters:
val - an char value
Returns:
a boolean value

containsKey

boolean containsKey(char key)
Checks for the present of key in the keys of the map.

Parameters:
key - an char value
Returns:
a boolean value

iterator

TCharCharIterator iterator()
Returns:
a TCharCharIterator with access to this map's keys and values

forEachKey

boolean forEachKey(TCharProcedure procedure)
Executes procedure for each key in the map.

Parameters:
procedure - a TCharProcedure value
Returns:
false if the loop over the keys terminated because the procedure returned false for some key.

forEachValue

boolean forEachValue(TCharProcedure 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(TCharCharProcedure procedure)
Executes procedure for each key/value entry in the map.

Parameters:
procedure - a TOCharCharProcedure value
Returns:
false if the loop over the entries terminated because the procedure returned false for some entry.

transformValues

void transformValues(TCharFunction function)
Transform the values in this map using function.

Parameters:
function - a TCharFunction value

retainEntries

boolean retainEntries(TCharCharProcedure 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(char 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(char key,
                    char 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

char adjustOrPutValue(char key,
                      char adjust_amount,
                      char put_amount)
Adjusts the primitive value mapped to the key if the key is present in the map. Otherwise, the initial_value 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 initial present
Returns:
the value present in the map after the adjustment or put operation

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