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java.lang.Objectorg.apache.mahout.math.PersistentObject
org.apache.mahout.math.set.AbstractSet
org.apache.mahout.math.map.AbstractDoubleByteMap
public abstract class AbstractDoubleByteMap
| 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 | |
|---|---|
AbstractDoubleByteMap()
|
|
| Method Summary | |
|---|---|
byte |
adjustOrPutValue(double key,
byte newValue,
byte incrValue)
Check the map for a key. |
boolean |
containsKey(double key)
Returns true if the receiver contains the specified key. |
boolean |
containsValue(byte value)
Returns true if the receiver contains the specified value. |
AbstractDoubleByteMap |
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(DoubleProcedure procedure)
Applies a procedure to each key of the receiver, if any. |
boolean |
forEachPair(DoubleByteProcedure procedure)
Applies a procedure to each (key,value) pair of the receiver, if any. |
abstract byte |
get(double key)
Returns the value associated with the specified key. |
int |
hashCode()
|
DoubleArrayList |
keys()
Returns a list filled with all keys contained in the receiver. |
void |
keys(DoubleArrayList list)
Fills all keys contained in the receiver into the specified list. |
void |
keysSortedByValue(DoubleArrayList keyList)
Fills all keys sorted ascending by their associated value into the specified list. |
void |
pairsMatching(DoubleByteProcedure condition,
DoubleArrayList keyList,
ByteArrayList valueList)
Fills all pairs satisfying a given condition into the specified lists. |
void |
pairsSortedByKey(DoubleArrayList keyList,
ByteArrayList valueList)
Fills all keys and values sorted ascending by key into the specified lists. |
void |
pairsSortedByValue(DoubleArrayList keyList,
ByteArrayList valueList)
Fills all keys and values sorted ascending by value into the specified lists. |
abstract boolean |
put(double key,
byte value)
Associates the given key with the given value. |
abstract boolean |
removeKey(double 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. |
ByteArrayList |
values()
Returns a list filled with all values contained in the receiver. |
void |
values(ByteArrayList 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 AbstractDoubleByteMap()
| Method Detail |
|---|
public boolean containsKey(double key)
public boolean containsValue(byte value)
public AbstractDoubleByteMap copy()
clone() and casts the result.
public boolean equals(Object obj)
m1.forEachPair(
new DoubleByteProcedure() {
public boolean apply(double key, byte value) {
return m2.containsKey(key) && m2.get(key) == value;
}
}
)
&&
m2.forEachPair(
new DoubleByteProcedure() {
public boolean apply(double key, byte 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(DoubleProcedure procedure)
procedure - the procedure to be applied. Stops iteration if the procedure returns false, otherwise
continues.
public boolean forEachPair(DoubleByteProcedure procedure)
forEachKey(DoubleProcedure).
procedure - the procedure to be applied. Stops iteration if the procedure returns false, otherwise
continues.
public abstract byte get(double key)
containsKey(double) 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 DoubleArrayList keys()
forEachKey(DoubleProcedure). This method can be used to iterate over the keys of the receiver.
public void keys(DoubleArrayList list)
forEachKey(DoubleProcedure). 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(DoubleArrayList 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(DoubleByteProcedure condition,
DoubleArrayList keyList,
ByteArrayList valueList)
forEachKey(DoubleProcedure).
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(DoubleArrayList keyList,
ByteArrayList 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(DoubleArrayList keyList,
ByteArrayList 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(double key,
byte value)
key - the key the value shall be associated with.value - the value to be associated.
public abstract boolean removeKey(double key)
key - the key to be removed from the receiver.
public String toString()
toString in class Objectpublic String toStringByValue()
public ByteArrayList values()
forEachKey(DoubleProcedure). This method can be used to iterate over the values of the receiver.
public void values(ByteArrayList list)
forEachKey(DoubleProcedure).
This method can be used to iterate over the values of the receiver.
list - the list to be filled, can have any size.
public byte adjustOrPutValue(double key,
byte newValue,
byte 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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