AbstractLongObjectMap (Parallel Colt 0.10.1

java.lang.Object
- cern.colt.PersistentObject
- - cern.colt.map.AbstractMap
  - - cern.colt.map.tobject.AbstractLongObjectMap

All Implemented Interfaces:

Serializable, Cloneable

Direct Known Subclasses:

OpenLongObjectHashMap
```
public abstract class AbstractLongObjectMap
extends AbstractMap
```
Abstract base class for hash maps holding (key,value) associations of type (long-->Object). 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.

Version:

1.0, 09/24/99

Author:

wolfgang.hoschek@cern.ch

See Also:
HashMap, Serialized Form

Method Summary

Methods
Modifier and Type	Method and Description
`boolean`	`containsKey(long key)` Returns `true` if the receiver contains the specified key.
`boolean`	`containsValue(Object value)` Returns `true` if the receiver contains the specified value.
`AbstractLongObjectMap`	`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(LongObjectProcedure procedure)` Applies a procedure to each (key,value) pair of the receiver, if any.
`abstract Object`	`get(long key)` Returns the value associated with the specified key.
`long`	`keyOf(Object 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(LongObjectProcedure condition, LongArrayList keyList, ObjectArrayList valueList)` Fills all pairs satisfying a given condition into the specified lists.
`void`	`pairsSortedByKey(LongArrayList keyList, ObjectArrayList valueList)` Fills all keys and values sorted ascending by key into the specified lists.
`void`	`pairsSortedByValue(LongArrayList keyList, ObjectArrayList valueList)` Fills all keys and values sorted ascending by value according to natural ordering into the specified lists.
`abstract boolean`	`put(long key, Object 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, according to natural ordering.
`ObjectArrayList`	`values()` Returns a list filled with all values contained in the receiver.
`void`	`values(ObjectArrayList 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
  - containsKey
```
public boolean containsKey(long key)
```
    Returns true if the receiver contains the specified key.
    
    Returns:
    true if the receiver contains the specified key.
  - containsValue
```
public boolean containsValue(Object value)
```
    Returns true if the receiver contains the specified value. Tests for identity.
    
    Returns:
    true if the receiver contains the specified value.
  - copy
```
public AbstractLongObjectMap copy()
```
    Returns a deep copy of the receiver; uses clone() and casts the result.
    
    Returns:
    a deep copy of the receiver.
  - equals
```
public boolean equals(Object obj)
```
    Compares the specified object with this map for equality. Returns true if the given object is also a map and the two maps represent the same mappings. More formally, two maps m1 and m2 represent the same mappings iff
```
 m1.forEachPair(
        new LongObjectProcedure() {
                public boolean apply(long key, Object value) {
                        return m2.containsKey(key) && m2.get(key) == value;
                }
        }
 )
 &&
 m2.forEachPair(
        new LongObjectProcedure() {
                public boolean apply(long key, Object 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.
    Overrides:
    
    equals in class Object
    
    Parameters:
    obj - object to be compared for equality with this map.
    
    Returns:
    true if the specified object is equal to this map.
  - forEachKey
```
public abstract boolean forEachKey(LongProcedure procedure)
```
    Applies a procedure to each key of the receiver, if any. Note: Iterates over the keys in no particular order. Subclasses can define a particular order, for example, "sorted by key". All methods which can be expressed in terms of this method (most methods can) must guarantee to use the same order defined by this method, even if it is no particular order. This is necessary so that, for example, methods keys and values will yield association pairs, not two uncorrelated lists.
    
    Parameters:
    procedure - the procedure to be applied. Stops iteration if the procedure returns false, otherwise continues.
    
    Returns:
    false if the procedure stopped before all keys where iterated over, true otherwise.
  - forEachPair
```
public boolean forEachPair(LongObjectProcedure procedure)
```
    Applies a procedure to each (key,value) pair of the receiver, if any. Iteration order is guaranteed to be identical to the order used by method forEachKey(LongProcedure).
    
    Parameters:
    procedure - the procedure to be applied. Stops iteration if the procedure returns false, otherwise continues.
    
    Returns:
    false if the procedure stopped before all keys where iterated over, true otherwise.
  - get
```
public abstract Object get(long key)
```
    Returns the value associated with the specified key. It is often a good idea to first check with 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.
    
    Parameters:
    key - the key to be searched for.
    
    Returns:
    the value associated with the specified key; null if no such key is present.
  - keyOf
```
public long keyOf(Object value)
```
    Returns the first key the given value is associated with. It is often a good idea to first check with containsValue(Object) 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).
    
    Parameters:
    value - the value to search for.
    
    Returns:
    the first key for which holds get(key) == value; returns Long.MIN_VALUE if no such key exists.
  - keys
```
public LongArrayList keys()
```
    Returns a list filled with all keys contained in the receiver. The returned list has a size that equals this.size(). Iteration order is guaranteed to be identical to the order used by method forEachKey(LongProcedure).
    This method can be used to iterate over the keys of the receiver.
    
    Returns:
    the keys.
  - keys
```
public void keys(LongArrayList list)
```
    Fills all keys contained in the receiver into the specified list. Fills the list, starting at index 0. After this call returns the specified list has a new size that equals this.size(). Iteration order is guaranteed to be identical to the order used by method forEachKey(LongProcedure).
    This method can be used to iterate over the keys of the receiver.
    
    Parameters:
    list - the list to be filled, can have any size.
  - keysSortedByValue
```
public void keysSortedByValue(LongArrayList keyList)
```
    Fills all keys sorted ascending by their associated value into the specified list. Fills into the list, starting at index 0. After this call returns the specified list has a new size that equals this.size(). Primary sort criterium is "value", secondary sort criterium is "key". This means that if any two values are equal, the smaller key comes first.
    Example:
    keys = (8,7,6), values = (1,2,2) --> keyList = (8,6,7)
    
    Parameters:
    keyList - the list to be filled, can have any size.
  - pairsMatching
```
public void pairsMatching(LongObjectProcedure condition,
                 LongArrayList keyList,
                 ObjectArrayList valueList)
```
    Fills all pairs satisfying a given condition into the specified lists. Fills into the lists, starting at index 0. After this call returns the specified lists both have a new size, the number of pairs satisfying the condition. Iteration order is guaranteed to be identical to the order used by method forEachKey(LongProcedure).
    Example:
```
         LongObjectProcedure condition = new LongObjectProcedure() { // match even keys only
         public boolean apply(long key, Object value) { return key%2==0; }
         }
         keys = (8,7,6), values = (1,2,2) --> keyList = (6,8), valueList = (2,1)
 </tt>
 
```
    Parameters:
    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.
  - pairsSortedByKey
```
public void pairsSortedByKey(LongArrayList keyList,
                    ObjectArrayList valueList)
```
    Fills all keys and values sorted ascending by key into the specified lists. Fills into the lists, starting at index 0. After this call returns the specified lists both have a new size that equals this.size().
    Example:
    keys = (8,7,6), values = (1,2,2) --> keyList = (6,7,8), valueList = (2,2,1)
    
    Parameters:
    keyList - the list to be filled with keys, can have any size.
    valueList - the list to be filled with values, can have any size.
  - pairsSortedByValue
```
public void pairsSortedByValue(LongArrayList keyList,
                      ObjectArrayList valueList)
```
    Fills all keys and values sorted ascending by value according to natural ordering into the specified lists. Fills into the lists, starting at index 0. After this call returns the specified lists both have a new size that equals this.size(). Primary sort criterium is "value", secondary sort criterium is "key". This means that if any two values are equal, the smaller key comes first.
    Example:
    keys = (8,7,6), values = (1,2,2) --> keyList = (8,6,7), valueList = (1,2,2)
    
    Parameters:
    keyList - the list to be filled with keys, can have any size.
    valueList - the list to be filled with values, can have any size.
  - put
```
public abstract boolean put(long key,
          Object value)
```
    Associates the given key with the given value. Replaces any old (key,someOtherValue) association, if existing.
    
    Parameters:
    key - the key the value shall be associated with.
    value - the value to be associated.
    
    Returns:
    true if the receiver did not already contain such a key; false if the receiver did already contain such a key - the new value has now replaced the formerly associated value.
  - removeKey
```
public abstract boolean removeKey(long key)
```
    Removes the given key with its associated element from the receiver, if present.
    
    Parameters:
    key - the key to be removed from the receiver.
    
    Returns:
    true if the receiver contained the specified key, false otherwise.
  - toString
```
public String toString()
```
    Returns a string representation of the receiver, containing the String representation of each key-value pair, sorted ascending by key.
    
    Overrides:
    
    toString in class Object
  - toStringByValue
```
public String toStringByValue()
```
    Returns a string representation of the receiver, containing the String representation of each key-value pair, sorted ascending by value, according to natural ordering.
  - values
```
public ObjectArrayList values()
```
    Returns a list filled with all values contained in the receiver. The returned list has a size that equals this.size(). Iteration order is guaranteed to be identical to the order used by method forEachKey(LongProcedure).
    This method can be used to iterate over the values of the receiver.
    
    Returns:
    the values.
  - values
```
public void values(ObjectArrayList list)
```
    Fills all values contained in the receiver into the specified list. Fills the list, starting at index 0. After this call returns the specified list has a new size that equals this.size(). Iteration order is guaranteed to be identical to the order used by method forEachKey(LongProcedure).
    This method can be used to iterate over the values of the receiver.
    
    Parameters:
    list - the list to be filled, can have any size.

Class AbstractLongObjectMap

Method Summary

Methods inherited from class cern.colt.map.AbstractMap

Methods inherited from class cern.colt.PersistentObject

Methods inherited from class java.lang.Object

Method Detail

containsKey

containsValue

copy

equals

forEachKey

forEachPair

get

keyOf

keys

keys

keysSortedByValue

pairsMatching

pairsSortedByKey

pairsSortedByValue

put

removeKey

toString

toStringByValue

values

values