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java.lang.Objectorg.apache.myfaces.shared_impl.util.HashMapUtils
public class HashMapUtils
Constructor Summary | |
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protected |
HashMapUtils()
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Method Summary | |
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static int |
calcCapacity(int size)
Calculates initial capacity needed to hold size elements in
a HashMap or Hashtable without forcing an expensive increase in internal
capacity. |
static java.lang.String |
mapToString(java.util.Map map)
spit out each name/value pair |
static java.util.HashMap |
merge(java.util.Map map1,
java.util.Map map2)
Creates a new HashMap that has all of the elements
of map1 and map2 (on key collision, the latter
override the former). |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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protected HashMapUtils()
Method Detail |
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public static final int calcCapacity(int size)
size
elements in
a HashMap or Hashtable without forcing an expensive increase in internal
capacity. Capacity is based on the default load factor of .75.
Usage: Map map = new HashMap(HashMapUtils.calcCapacity(10));
size
- the number of items that will be put into a HashMap
public static java.util.HashMap merge(java.util.Map map1, java.util.Map map2)
HashMap
that has all of the elements
of map1
and map2
(on key collision, the latter
override the former).
map1
- the fist hashmap to mergemap2
- the second hashmap to merge
public static java.lang.String mapToString(java.util.Map map)
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