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java.lang.Objectcern.colt.PersistentObject
cern.colt.map.AbstractMap
cern.colt.map.tlong.AbstractLongIntMap
public abstract class AbstractLongIntMap
Abstract base class for hash maps holding (key,value) associations of type (long-->int). First see the package summary and javadoc tree view to get the broad picture.
Implementation:
Almost all methods are expressed in terms of
forEachKey(LongProcedure)
. As such they are fully functional, but
inefficient. Override them in subclasses if necessary.
HashMap
,
Serialized FormMethod Summary | |
---|---|
void |
assign(AbstractLongIntMap other)
Clears the receiver, then adds all (key,value) pairs of other values to it. |
void |
assign(IntFunction function)
Assigns the result of a function to each value; v[i] = function(v[i]). |
boolean |
containsKey(long key)
Returns true if the receiver contains the specified key. |
boolean |
containsValue(int value)
Returns true if the receiver contains the specified value. |
AbstractLongIntMap |
copy()
Returns a deep copy of the receiver; uses clone() and casts
the result. |
boolean |
equals(Object obj)
Compares the specified object with this map for equality. |
abstract boolean |
forEachKey(LongProcedure procedure)
Applies a procedure to each key of the receiver, if any. |
boolean |
forEachPair(LongIntProcedure procedure)
Applies a procedure to each (key,value) pair of the receiver, if any. |
abstract int |
get(long key)
Returns the value associated with the specified key. |
long |
keyOf(int value)
Returns the first key the given value is associated with. |
LongArrayList |
keys()
Returns a list filled with all keys contained in the receiver. |
void |
keys(LongArrayList list)
Fills all keys contained in the receiver into the specified list. |
void |
keysSortedByValue(LongArrayList keyList)
Fills all keys sorted ascending by their associated value into the specified list. |
void |
pairsMatching(LongIntProcedure condition,
LongArrayList keyList,
IntArrayList valueList)
Fills all pairs satisfying a given condition into the specified lists. |
void |
pairsSortedByKey(LongArrayList keyList,
IntArrayList valueList)
Fills all keys and values sorted ascending by key into the specified lists. |
void |
pairsSortedByValue(LongArrayList keyList,
IntArrayList valueList)
Fills all keys and values sorted ascending by value into the specified lists. |
abstract boolean |
put(long key,
int value)
Associates the given key with the given value. |
abstract boolean |
removeKey(long key)
Removes the given key with its associated element from the receiver, if present. |
String |
toString()
Returns a string representation of the receiver, containing the String representation of each key-value pair, sorted ascending by key. |
String |
toStringByValue()
Returns a string representation of the receiver, containing the String representation of each key-value pair, sorted ascending by value. |
IntArrayList |
values()
Returns a list filled with all values contained in the receiver. |
void |
values(IntArrayList list)
Fills all values contained in the receiver into the specified list. |
Methods inherited from class cern.colt.map.AbstractMap |
---|
clear, ensureCapacity, isEmpty, size, trimToSize |
Methods inherited from class cern.colt.PersistentObject |
---|
clone |
Methods inherited from class java.lang.Object |
---|
getClass, hashCode, notify, notifyAll, wait, wait, wait |
Method Detail |
---|
public void assign(IntFunction function)
function
- a function object taking as argument the current association's
value.public void assign(AbstractLongIntMap other)
other
- the other map to be copied into the receiver.public boolean containsKey(long key)
public boolean containsValue(int value)
public AbstractLongIntMap copy()
clone()
and casts
the result.
public boolean equals(Object obj)
m1.forEachPair( new LongIntProcedure() { public boolean apply(long key, int value) { return m2.containsKey(key) && m2.get(key) == value; } } ) && m2.forEachPair( new LongIntProcedure() { public boolean apply(long key, int value) { return m1.containsKey(key) && m1.get(key) == value; } } );This implementation first checks if the specified object is this map; if so it returns true. Then, it checks if the specified object is a map whose size is identical to the size of this set; if not, it it returns false. If so, it applies the iteration as described above.
equals
in class Object
obj
- object to be compared for equality with this map.
public abstract boolean forEachKey(LongProcedure procedure)
procedure
- the procedure to be applied. Stops iteration if the procedure
returns false, otherwise continues.
public boolean forEachPair(LongIntProcedure procedure)
forEachKey(LongProcedure)
.
procedure
- the procedure to be applied. Stops iteration if the procedure
returns false, otherwise continues.
public abstract int get(long key)
containsKey(long)
whether the given key
has a value associated or not, i.e. whether there exists an association
for the given key or not.
key
- the key to be searched for.
public long keyOf(int value)
containsValue(int)
whether there
exists an association from a key to this value. Search order is
guaranteed to be identical to the order used by method
forEachKey(LongProcedure)
.
value
- the value to search for.
public LongArrayList keys()
forEachKey(LongProcedure)
.
This method can be used to iterate over the keys of the receiver.
public void keys(LongArrayList list)
forEachKey(LongProcedure)
.
This method can be used to iterate over the keys of the receiver.
list
- the list to be filled, can have any size.public void keysSortedByValue(LongArrayList keyList)
Example:
keys = (8,7,6), values = (1,2,2) --> keyList = (8,6,7)
keyList
- the list to be filled, can have any size.public void pairsMatching(LongIntProcedure condition, LongArrayList keyList, IntArrayList valueList)
forEachKey(LongProcedure)
.
Example:
LongIntProcedure condition = new LongIntProcedure() { // match even keys only public boolean apply(long key, int value) { return key%2==0; } } keys = (8,7,6), values = (1,2,2) --> keyList = (6,8), valueList = (2,1) </tt>
condition
- the condition to be matched. Takes the current key as first
and the current value as second argument.keyList
- the list to be filled with keys, can have any size.valueList
- the list to be filled with values, can have any size.public void pairsSortedByKey(LongArrayList keyList, IntArrayList valueList)
Example:
keys = (8,7,6), values = (1,2,2) --> keyList = (6,7,8), valueList = (2,2,1)
keyList
- the list to be filled with keys, can have any size.valueList
- the list to be filled with values, can have any size.public void pairsSortedByValue(LongArrayList keyList, IntArrayList valueList)
Example:
keys = (8,7,6), values = (1,2,2) --> keyList = (8,6,7), valueList = (1,2,2)
keyList
- the list to be filled with keys, can have any size.valueList
- the list to be filled with values, can have any size.public abstract boolean put(long key, int value)
key
- the key the value shall be associated with.value
- the value to be associated.
public abstract boolean removeKey(long key)
key
- the key to be removed from the receiver.
public String toString()
toString
in class Object
public String toStringByValue()
public IntArrayList values()
forEachKey(LongProcedure)
.
This method can be used to iterate over the values of the receiver.
public void values(IntArrayList list)
forEachKey(LongProcedure)
.
This method can be used to iterate over the values of the receiver.
list
- the list to be filled, can have any size.
|
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