Package org.eclipse.mat.collect
Class HashMapIntLong
- java.lang.Object
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- org.eclipse.mat.collect.HashMapIntLong
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- All Implemented Interfaces:
Serializable
public final class HashMapIntLong extends Object implements Serializable
A map from int to long. More efficient than a general map- See Also:
- Serialized Form
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Nested Class Summary
Nested Classes Modifier and Type Class Description static interface
HashMapIntLong.Entry
An entry from the map
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Constructor Summary
Constructors Constructor Description HashMapIntLong()
Create a map of default sizeHashMapIntLong(int initialCapacity)
Create a map of given size
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
clear()
Remove all the existing mappings, leaving the capacity unchanged.boolean
containsKey(int key)
find if key is present in mapIterator<HashMapIntLong.Entry>
entries()
Iterate over all the map entrieslong
get(int key)
Retrieve the value corresponding to the keyint[]
getAllKeys()
Get all the used keyslong[]
getAllValues()
Get all the values corresponding to the used keys.boolean
isEmpty()
Is the map emptyIteratorInt
keys()
Get a way of iterating over the keysboolean
put(int key, long value)
Add a mappingboolean
remove(int key)
Remove an mapping from the mapint
size()
The number of mappingsIteratorLong
values()
Get a way of iterating over the values.
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Method Detail
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put
public boolean put(int key, long value)
Add a mapping- Parameters:
key
- the keyvalue
- the corresponding value- Returns:
- true if an entry with the key already exists
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remove
public boolean remove(int key)
Remove an mapping from the map- Parameters:
key
- the key to remove- Returns:
- true if entry was found
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containsKey
public boolean containsKey(int key)
find if key is present in map- Parameters:
key
- the key- Returns:
- true if the key was found
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get
public long get(int key)
Retrieve the value corresponding to the key- Parameters:
key
- the key- Returns:
- the value
- Throws:
NoSuchElementException
- if the key is not found
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getAllKeys
public int[] getAllKeys()
Get all the used keys- Returns:
- an array of the used keys
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size
public int size()
The number of mappings- Returns:
- the size of the map
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isEmpty
public boolean isEmpty()
Is the map empty- Returns:
- true if no current mappings
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clear
public void clear()
Remove all the existing mappings, leaving the capacity unchanged.
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keys
public IteratorInt keys()
Get a way of iterating over the keys- Returns:
- an iterator over the keys
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values
public IteratorLong values()
Get a way of iterating over the values.- Returns:
- an iterator over the values
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entries
public Iterator<HashMapIntLong.Entry> entries()
Iterate over all the map entries- Returns:
- the iterator over the entries
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getAllValues
public long[] getAllValues()
Get all the values corresponding to the used keys. Duplicate values are possible if they correspond to different keys.- Returns:
- an array of the used values
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