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java.lang.Object dsto.dfc.collections.MicroMap
public class MicroMap
A small footprint Map-like collection that provides basic put/get/remove functionality for small maps that don't change much. Lookup cost and memory usage scales linearly with entry count.
Constructor Summary | |
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MicroMap()
Create a map with a default initial capacity before resize. |
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MicroMap(int initialCapacity)
Create a map with a given initial capacity before resize. |
Method Summary | |
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void |
clear()
Remove all entries. |
boolean |
containsKey(Object key)
Test if the map contains a key. |
int |
findIndex(Object key)
Find the index for a key, or -1 if not found. |
Object |
get(Object key)
Find the value with matchinf key. |
Object |
getKey(int index)
Get the key for an index (0..size ()). |
Object |
getValue(int index)
Get the value for an index (0..size ()). |
Object |
put(Object key,
Object value)
Add/overwrite a value. |
Object |
remove(Object key)
Remove a value. |
int |
size()
The number of entries in the map. |
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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public MicroMap()
public MicroMap(int initialCapacity)
Method Detail |
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public void clear()
public Object put(Object key, Object value)
key
- The value key.value
- The value.
public Object remove(Object key)
key
- The value key.
public Object get(Object key)
key
- The key to search for.
public boolean containsKey(Object key)
public int size()
public Object getKey(int index)
public Object getValue(int index)
public int findIndex(Object key)
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