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java.lang.Objectorg.apache.mahout.math.PersistentObject
org.apache.mahout.math.set.AbstractSet
org.apache.mahout.math.map.AbstractObjectFloatMap<T>
public abstract class AbstractObjectFloatMap<T>
| Field Summary |
|---|
| Fields inherited from class org.apache.mahout.math.set.AbstractSet |
|---|
DEFAULT_CAPACITY, DEFAULT_MAX_LOAD_FACTOR, DEFAULT_MIN_LOAD_FACTOR, distinct, highWaterMark, lowWaterMark, maxLoadFactor, minLoadFactor |
| Constructor Summary | |
|---|---|
AbstractObjectFloatMap()
|
|
| Method Summary | |
|---|---|
float |
adjustOrPutValue(T key,
float newValue,
float incrValue)
Check the map for a key. |
void |
assign(AbstractObjectFloatMap<T> other)
Clears the receiver, then adds all (key,value) pairs of othervalues to it. |
void |
assign(FloatFunction function)
Assigns the result of a function to each value; v[i] = function(v[i]). |
boolean |
containsKey(T key)
Returns true if the receiver contains the specified key. |
boolean |
containsValue(float value)
Returns true if the receiver contains the specified value. |
AbstractObjectFloatMap<T> |
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(ObjectProcedure<T> procedure)
Applies a procedure to each key of the receiver, if any. |
boolean |
forEachPair(ObjectFloatProcedure<T> procedure)
Applies a procedure to each (key,value) pair of the receiver, if any. |
abstract float |
get(T key)
Returns the value associated with the specified key. |
int |
hashCode()
|
List<T> |
keys()
Returns a list filled with all keys contained in the receiver. |
void |
keys(List<T> list)
Fills all keys contained in the receiver into the specified list. |
void |
keysSortedByValue(List<T> keyList)
Fills all keys sorted ascending by their associated value into the specified list. |
void |
pairsMatching(ObjectFloatProcedure<T> condition,
List<T> keyList,
FloatArrayList valueList)
Fills all pairs satisfying a given condition into the specified lists. |
void |
pairsSortedByKey(List<T> keyList,
FloatArrayList valueList)
Fills all keys and values sorted ascending by key into the specified lists. |
void |
pairsSortedByValue(List<T> keyList,
FloatArrayList valueList)
Fills all keys and values sorted ascending by value into the specified lists. |
abstract boolean |
put(T key,
float value)
Associates the given key with the given value. |
abstract boolean |
removeKey(T 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. |
FloatArrayList |
values()
Returns a list filled with all values contained in the receiver. |
void |
values(FloatArrayList list)
Fills all values contained in the receiver into the specified list. |
| Methods inherited from class org.apache.mahout.math.set.AbstractSet |
|---|
chooseGrowCapacity, chooseHighWaterMark, chooseLowWaterMark, chooseMeanCapacity, chooseShrinkCapacity, clear, ensureCapacity, equalsMindTheNull, isEmpty, nextPrime, setUp, size, trimToSize |
| Methods inherited from class org.apache.mahout.math.PersistentObject |
|---|
clone |
| Methods inherited from class java.lang.Object |
|---|
finalize, getClass, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
|---|
public AbstractObjectFloatMap()
| Method Detail |
|---|
public boolean containsKey(T key)
public boolean containsValue(float value)
public AbstractObjectFloatMap<T> copy()
clone() and casts the result.
public boolean equals(Object obj)
m1.forEachPair(
new ObjectFloatProcedure() {
public boolean apply(T key, float value) {
return m2.containsKey(key) && m2.get(key) == value;
}
}
)
&&
m2.forEachPair(
new ObjectFloatProcedure() {
public boolean apply(T key, float 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 Objectobj - object to be compared for equality with this map.
public int hashCode()
hashCode in class Objectpublic abstract boolean forEachKey(ObjectProcedure<T> procedure)
procedure - the procedure to be applied. Stops iteration if the procedure returns false, otherwise
continues.
public boolean forEachPair(ObjectFloatProcedure<T> procedure)
forEachKey(ObjectProcedure).
procedure - the procedure to be applied. Stops iteration if the procedure returns false, otherwise
continues.
public abstract float get(T key)
containsKey(Object) 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 List<T> keys()
forEachKey(ObjectProcedure). This method can be used to iterate over the keys of the receiver.
public void keys(List<T> list)
forEachKey(ObjectProcedure). 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(List<T> 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(ObjectFloatProcedure<T> condition,
List<T> keyList,
FloatArrayList valueList)
forEachKey(ObjectProcedure).
Example:
IntIntProcedure condition = new IntIntProcedure() { // match even keys only
public boolean apply(int key, int value) { return key%2==0; }
}
keys = (8,7,6), values = (1,2,2) --> keyList = (6,8), valueList = (2,1)
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(List<T> keyList,
FloatArrayList 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(List<T> keyList,
FloatArrayList 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(T key,
float value)
key - the key the value shall be associated with.value - the value to be associated.
public abstract boolean removeKey(T key)
key - the key to be removed from the receiver.
public String toString()
toString in class Objectpublic String toStringByValue()
public FloatArrayList values()
forEachKey(ObjectProcedure). This method can be used to iterate over the values of the receiver.
public void values(FloatArrayList list)
forEachKey(ObjectProcedure). This method can be used to iterate over the values of the receiver.
list - the list to be filled, can have any size.public void assign(FloatFunction function)
function - a function object taking as argument the current association's value.public void assign(AbstractObjectFloatMap<T> other)
other - the other map to be copied into the receiver.
public float adjustOrPutValue(T key,
float newValue,
float incrValue)
key - the key.newValue - the value to store if the key is not currently in the map.incrValue - the value to be added to the current value in the map.
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