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java.lang.Objectorg.apache.mahout.math.PersistentObject
org.apache.mahout.math.set.AbstractSet
org.apache.mahout.math.map.AbstractByteDoubleMap
public abstract class AbstractByteDoubleMap
Field Summary |
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Fields inherited from class org.apache.mahout.math.set.AbstractSet |
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DEFAULT_CAPACITY, DEFAULT_MAX_LOAD_FACTOR, DEFAULT_MIN_LOAD_FACTOR, distinct, highWaterMark, lowWaterMark, maxLoadFactor, minLoadFactor |
Constructor Summary | |
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AbstractByteDoubleMap()
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Method Summary | |
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double |
adjustOrPutValue(byte key,
double newValue,
double incrValue)
Check the map for a key. |
void |
assign(AbstractByteDoubleMap other)
Clears the receiver, then adds all (key,value) pairs of othervalues to it. |
void |
assign(DoubleFunction function)
Assigns the result of a function to each value; v[i] = function(v[i]). |
boolean |
containsKey(byte key)
Returns true if the receiver contains the specified key. |
boolean |
containsValue(double value)
Returns true if the receiver contains the specified value. |
AbstractByteDoubleMap |
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(ByteProcedure procedure)
Applies a procedure to each key of the receiver, if any. |
boolean |
forEachPair(ByteDoubleProcedure procedure)
Applies a procedure to each (key,value) pair of the receiver, if any. |
abstract double |
get(byte key)
Returns the value associated with the specified key. |
int |
hashCode()
|
ByteArrayList |
keys()
Returns a list filled with all keys contained in the receiver. |
void |
keys(ByteArrayList list)
Fills all keys contained in the receiver into the specified list. |
void |
keysSortedByValue(ByteArrayList keyList)
Fills all keys sorted ascending by their associated value into the specified list. |
void |
pairsMatching(ByteDoubleProcedure condition,
ByteArrayList keyList,
DoubleArrayList valueList)
Fills all pairs satisfying a given condition into the specified lists. |
void |
pairsSortedByKey(ByteArrayList keyList,
DoubleArrayList valueList)
Fills all keys and values sorted ascending by key into the specified lists. |
void |
pairsSortedByValue(ByteArrayList keyList,
DoubleArrayList valueList)
Fills all keys and values sorted ascending by value into the specified lists. |
abstract boolean |
put(byte key,
double value)
Associates the given key with the given value. |
abstract boolean |
removeKey(byte 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. |
DoubleArrayList |
values()
Returns a list filled with all values contained in the receiver. |
void |
values(DoubleArrayList list)
Fills all values contained in the receiver into the specified list. |
Methods inherited from class org.apache.mahout.math.set.AbstractSet |
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chooseGrowCapacity, chooseHighWaterMark, chooseLowWaterMark, chooseMeanCapacity, chooseShrinkCapacity, clear, ensureCapacity, equalsMindTheNull, isEmpty, nextPrime, setUp, size, trimToSize |
Methods inherited from class org.apache.mahout.math.PersistentObject |
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clone |
Methods inherited from class java.lang.Object |
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finalize, getClass, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public AbstractByteDoubleMap()
Method Detail |
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public boolean containsKey(byte key)
public boolean containsValue(double value)
public AbstractByteDoubleMap copy()
clone()
and casts the result.
public boolean equals(Object obj)
m1.forEachPair( new ByteDoubleProcedure() { public boolean apply(byte key, double value) { return m2.containsKey(key) && m2.get(key) == value; } } ) && m2.forEachPair( new ByteDoubleProcedure() { public boolean apply(byte key, double 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 int hashCode()
hashCode
in class Object
public abstract boolean forEachKey(ByteProcedure procedure)
procedure
- the procedure to be applied. Stops iteration if the procedure returns false, otherwise
continues.
public boolean forEachPair(ByteDoubleProcedure procedure)
forEachKey(ByteProcedure)
.
procedure
- the procedure to be applied. Stops iteration if the procedure returns false, otherwise
continues.
public abstract double get(byte key)
containsKey(byte)
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 ByteArrayList keys()
forEachKey(ByteProcedure)
. This method can be used to iterate over the keys of the receiver.
public void keys(ByteArrayList list)
forEachKey(ByteProcedure)
. 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(ByteArrayList 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(ByteDoubleProcedure condition, ByteArrayList keyList, DoubleArrayList valueList)
forEachKey(ByteProcedure)
.
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(ByteArrayList keyList, DoubleArrayList 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(ByteArrayList keyList, DoubleArrayList 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(byte key, double value)
key
- the key the value shall be associated with.value
- the value to be associated.
public abstract boolean removeKey(byte key)
key
- the key to be removed from the receiver.
public String toString()
toString
in class Object
public String toStringByValue()
public DoubleArrayList values()
forEachKey(ByteProcedure)
. This method can be used to iterate over the values of the receiver.
public void values(DoubleArrayList list)
forEachKey(ByteProcedure)
.
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(DoubleFunction function)
function
- a function object taking as argument the current association's value.public void assign(AbstractByteDoubleMap other)
other
- the other map to be copied into the receiver.public double adjustOrPutValue(byte key, double newValue, double 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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