Package net.sf.saxon.sort
Class IntHashMap
java.lang.Object
net.sf.saxon.sort.IntHashMap
- All Implemented Interfaces:
Serializable
A hash table that maps int keys to Object values.
- Author:
- Dave Hale, Landmark Graphics, Dominique Devienne, Michael Kay: retrofitted to JDK 1.4, added iterator(), modified to disallow null values
- See Also:
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Constructor Summary
ConstructorsConstructorDescriptionInitializes a map with a capacity of 8 and a load factor of 0,25.IntHashMap
(int capacity) Initializes a map with the given capacity and a load factor of 0,25.IntHashMap
(int capacity, double factor) Constructs a new map with initial capacity, and load factor. -
Method Summary
Modifier and TypeMethodDescriptionvoid
clear()
Clears the map.copy()
Create a copy of the IntHashMapvoid
display()
Diagnostic display of contentsget
(int key) Gets the value for this key.Get an iterator over the keysvoid
Adds a key-value pair to the map.boolean
remove
(int key) Removes a key from the map.int
size()
Gets the size of the map.Get an iterator over the values
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Constructor Details
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IntHashMap
public IntHashMap()Initializes a map with a capacity of 8 and a load factor of 0,25. -
IntHashMap
public IntHashMap(int capacity) Initializes a map with the given capacity and a load factor of 0,25.- Parameters:
capacity
- the initial capacity.
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IntHashMap
public IntHashMap(int capacity, double factor) Constructs a new map with initial capacity, and load factor. The capacity is the number of keys that can be mapped without resizing the arrays in which keys and values are stored. For efficiency, only a fraction of the elements in those arrays are used. That fraction is the specified load factor. The initial length of the arrays equals the smallest power of two not less than the ratio capacity/factor. The capacity of the map is increased, as necessary. The maximum number of keys that can be mapped is 2^30.- Parameters:
capacity
- the initial capacity.factor
- the load factor.
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Method Details
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clear
public void clear()Clears the map. -
get
Gets the value for this key.- Parameters:
key
- Key- Returns:
- the value, null if not found.
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size
public int size()Gets the size of the map.- Returns:
- the size (the number of entries in the map)
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remove
public boolean remove(int key) Removes a key from the map.- Parameters:
key
- Key to remove- Returns:
- true if the value was removed
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put
Adds a key-value pair to the map.- Parameters:
key
- Keyvalue
- Value
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keyIterator
Get an iterator over the keys -
valueIterator
Get an iterator over the values -
copy
Create a copy of the IntHashMap -
display
public void display()Diagnostic display of contents
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