org.opentripplanner.api.resource

Class SimpleIsochrone.MinMap<K,V extends Comparable<V>>

java.lang.Object

java.util.AbstractMap<K,V>

java.util.HashMap<K,V>

org.opentripplanner.api.resource.SimpleIsochrone.MinMap<K,V>

All Implemented Interfaces:

Serializable, Cloneable, Map<K,V>

Enclosing class:

SimpleIsochrone

public static class SimpleIsochrone.MinMap<K,V extends Comparable<V>>
extends HashMap<K,V>

A HashMap that has been extended to track the greatest or smallest value for each key. Note that this does not change the meaning of the 'put' method. It adds two new methods that add the min/max behavior.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

AbstractMap.SimpleEntry<K,V>, AbstractMap.SimpleImmutableEntry<K,V>

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K,V>

Constructor Summary

Constructors

Constructor and Description
MinMap()

Method Summary

Modifier and Type	Method and Description
boolean	putMax(K key, V value) Put the given key-value pair in the map if the map does not yet contain the key, or if the value is greater than the existing value for the same key.
boolean	putMin(K key, V value) Put the given key-value pair in the map if the map does not yet contain the key, or if the value is less than the existing value for the same key.

Methods inherited from class java.util.HashMap

clear, clone, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, forEach, get, getOrDefault, isEmpty, keySet, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, values

Methods inherited from class java.util.AbstractMap

equals, hashCode, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

equals, hashCode

Constructor Detail

MinMap

public MinMap()

Method Detail

putMin

public boolean putMin(K key,
                      V value)

Put the given key-value pair in the map if the map does not yet contain the key, or if the value is less than the existing value for the same key.

Returns:

whether the key-value pair was inserted in the map.

putMax

public boolean putMax(K key,
                      V value)

Put the given key-value pair in the map if the map does not yet contain the key, or if the value is greater than the existing value for the same key.

Returns:

whether the key-value pair was inserted in the map.