| java.lang.Object | |
| ↳ | org.hibernate.util.CollectionHelper |
Class Overview
Various help for handling collections.
Summary
| Constants | |||||||||||
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| float | LOAD_FACTOR | ||||||||||
| int | MINIMUM_INITIAL_CAPACITY | ||||||||||
| Fields | |||||||||||
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| EMPTY_COLLECTION | |||||||||||
| EMPTY_LIST | |||||||||||
| EMPTY_MAP | |||||||||||
| Public Methods | |||||||||||
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Given a map, determine the proper initial size for a new Map to hold the same number of values.
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Determine the proper initial size for a new collection in order for it to hold the given a number of elements.
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Given a set, determine the proper initial size for a new set to hold the same number of values.
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Build a properly sized map, especially handling load size and load factor to prevent immediate resizing.
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[Expand]
Inherited Methods | |||||||||||
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From class
java.lang.Object
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Constants
public static final float LOAD_FACTOR
Constant Value:
0.75
public static final int MINIMUM_INITIAL_CAPACITY
Constant Value:
16
(0x00000010)
Fields
Public Methods
public static int determineProperSizing (Map original)
Given a map, determine the proper initial size for a new Map to hold the same number of values. Specifically we want to account for load size and load factor to prevent immediate resizing.
Parameters
| original | The original map |
|---|
Returns
- The proper size.
public static int determineProperSizing (int numberOfElements)
Determine the proper initial size for a new collection in order for it to hold the given a number of elements. Specifically we want to account for load size and load factor to prevent immediate resizing.
Parameters
| numberOfElements | The number of elements to be stored. |
|---|
Returns
- The proper size.
public static int determineProperSizing (Set original)
Given a set, determine the proper initial size for a new set to hold the same number of values. Specifically we want to account for load size and load factor to prevent immediate resizing.
Parameters
| original | The original set |
|---|
Returns
- The proper size.
public static Map mapOfSize (int size)
Build a properly sized map, especially handling load size and load factor to prevent immediate resizing.
Especially helpful for copy map contents.Parameters
| size | The size to make the map. |
|---|
Returns
- The sized map.