IntToIntMap (InterMine 5.0.0 API)

java.lang.Object
- org.intermine.util.IntToIntMap

```
public class IntToIntMap
extends java.lang.Object
```
This is a map that maps from int to int. All non-existent mappings automatically map onto -1 - inserting a mapping merely redefines the mapping. This class is designed to use as little RAM as possible, and assumes that the mappings are from reasonably closely-spaced ints. In the case where the mappings are from consecutive ints, this class will use not much more than four bytes per mapping.

Author:

Matthew Wakeling

Constructor Summary

Constructors
Constructor Description

IntToIntMap()
Constructor for this class.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`clear()`	Removes all mappings from the object.
`int`	`get(int from)`	Retrieves a mapping from the object
`java.lang.Integer`	`get(java.lang.Integer from)`	Retrieves a mapping from the object.
`void`	`put(int from, int to)`	Creates a mapping in the object.
`void`	`put(java.lang.Integer from, java.lang.Integer to)`	Puts a mapping in the object.
`int`	`size()`	Returns the number of mappings to non-minus-one ints present.
`java.lang.String`	`toString()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - IntToIntMap
```
public IntToIntMap()
```
    Constructor for this class. Creates an empty map.
- Method Detail
  - put
```
public void put(int from,
                int to)
```
    Creates a mapping in the object.
    
    Parameters:
    
    from - any int
    
    to - any int - or -1 to effectively remove the mapping
  - get
```
public int get(int from)
```
    Retrieves a mapping from the object
    
    Parameters:
    
    from - any int
    
    Returns:
    
    an int - -1 if there is no mapping present that matches
  - put
```
public void put(java.lang.Integer from,
                java.lang.Integer to)
```
    Puts a mapping in the object.
    
    Parameters:
    
    from - an Integer
    
    to - any Integer other than -1, or null to remove a mapping
  - get
```
public java.lang.Integer get(java.lang.Integer from)
```
    Retrieves a mapping from the object.
    
    Parameters:
    
    from - any Integer
    
    Returns:
    
    an Integer other than -1, or null if there is no mapping that matches
  - size
```
public int size()
```
    Returns the number of mappings to non-minus-one ints present.
    
    Returns:
    
    the size
  - clear
```
public void clear()
```
    Removes all mappings from the object.
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object