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java.lang.Objectorg.apache.mahout.math.PersistentObject
org.apache.mahout.math.set.AbstractSet
org.apache.mahout.math.map.AbstractObjectByteMap<T>
public abstract class AbstractObjectByteMap<T>
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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AbstractObjectByteMap()
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Method Summary | |
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byte |
adjustOrPutValue(T key,
byte newValue,
byte incrValue)
Check the map for a key. |
boolean |
containsKey(T key)
Returns true if the receiver contains the specified key. |
boolean |
containsValue(byte value)
Returns true if the receiver contains the specified value. |
AbstractObjectByteMap<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(ObjectByteProcedure<T> procedure)
Applies a procedure to each (key,value) pair of the receiver, if any. |
abstract byte |
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(ObjectByteProcedure<T> condition,
List<T> keyList,
ByteArrayList valueList)
Fills all pairs satisfying a given condition into the specified lists. |
void |
pairsSortedByKey(List<T> keyList,
ByteArrayList valueList)
Fills all keys and values sorted ascending by key into the specified lists. |
void |
pairsSortedByValue(List<T> keyList,
ByteArrayList valueList)
Fills all keys and values sorted ascending by value into the specified lists. |
abstract boolean |
put(T key,
byte 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. |
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 |
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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 AbstractObjectByteMap()
Method Detail |
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public boolean containsKey(T key)
public boolean containsValue(byte value)
public AbstractObjectByteMap<T> copy()
clone()
and casts the result.
public boolean equals(Object obj)
m1.forEachPair( new ObjectByteProcedureThis 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.() { public boolean apply(T key, byte value) { return m2.containsKey(key) && m2.get(key) == value; } } ) && m2.forEachPair( new ObjectByteProcedure () { public boolean apply(T key, byte value) { return m1.containsKey(key) && m1.get(key) == value; } } );
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(ObjectProcedure<T> procedure)
procedure
- the procedure to be applied. Stops iteration if the procedure returns false, otherwise
continues.
public boolean forEachPair(ObjectByteProcedure<T> procedure)
forEachKey(ObjectProcedure)
.
procedure
- the procedure to be applied. Stops iteration if the procedure returns false, otherwise
continues.
public abstract byte 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(ObjectByteProcedure<T> condition, List<T> keyList, ByteArrayList 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, 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(List<T> 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(T key, byte 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 Object
public String toStringByValue()
public ByteArrayList values()
forEachKey(ObjectProcedure)
. This method can be used to iterate over the values of the receiver.
public void values(ByteArrayList 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 byte adjustOrPutValue(T 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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