minicp.state

Interface StateMap<K,V>

Type Parameters:

K - the key type

V - the value type

All Known Implementing Classes:

CopyMap, TrailMap

public interface StateMap<K,V>

A generic map that can revert its state with StateManager.saveState() / StateManager.restoreState() methods.

See Also:

for the creation.

Method Summary

Modifier and Type	Method and Description
V	get(K k) Retrieves the value for a given key.
void	put(K k, V v) Inserts the key-value pair.

Method Detail

put

void put(K k,
         V v)

Inserts the key-value pair. It erases the existing ones if the map already contains an entry with the given key.

Parameters:

k - the key

v - the value

get

V get(K k)

Retrieves the value for a given key.

Parameters:

k - the key

Returns:

the value v if the entry (k,v) was previously put, null otherwise