62 lines
1.7 KiB
Java
62 lines
1.7 KiB
Java
// com/mindviewinc/util/MapData.java
|
|
// A Map filled with data using a generator object.
|
|
package com.mindviewinc.util;
|
|
import java.util.*;
|
|
import java.util.function.*;
|
|
|
|
public class MapData<K, V> extends LinkedHashMap<K, V> {
|
|
// A single Pair Supplier:
|
|
public MapData(Supplier<Pair<K, V>> gen, int quantity) {
|
|
for(int i = 0; i < quantity; i++) {
|
|
Pair<K, V> p = gen.get();
|
|
put(p.key, p.value);
|
|
}
|
|
}
|
|
// Two separate Suppliers:
|
|
public MapData(Supplier<K> genK, Supplier<V> genV,
|
|
int quantity) {
|
|
for(int i = 0; i < quantity; i++) {
|
|
put(genK.get(), genV.get());
|
|
}
|
|
}
|
|
// A key Supplier and a single value:
|
|
public MapData(Supplier<K> genK, V value, int quantity){
|
|
for(int i = 0; i < quantity; i++) {
|
|
put(genK.get(), value);
|
|
}
|
|
}
|
|
// An Iterable and a value Supplier:
|
|
public MapData(Iterable<K> genK, Supplier<V> genV) {
|
|
for(K key : genK) {
|
|
put(key, genV.get());
|
|
}
|
|
}
|
|
// An Iterable and a single value:
|
|
public MapData(Iterable<K> genK, V value) {
|
|
for(K key : genK) {
|
|
put(key, value);
|
|
}
|
|
}
|
|
// Generic convenience methods:
|
|
public static <K, V> MapData<K, V>
|
|
map(Supplier<Pair<K, V>> gen, int quantity) {
|
|
return new MapData<>(gen, quantity);
|
|
}
|
|
public static <K, V> MapData<K, V>
|
|
map(Supplier<K> genK, Supplier<V> genV, int quantity) {
|
|
return new MapData<>(genK, genV, quantity);
|
|
}
|
|
public static <K, V> MapData<K, V>
|
|
map(Supplier<K> genK, V value, int quantity) {
|
|
return new MapData<>(genK, value, quantity);
|
|
}
|
|
public static <K, V> MapData<K, V>
|
|
map(Iterable<K> genK, Supplier<V> genV) {
|
|
return new MapData<>(genK, genV);
|
|
}
|
|
public static <K, V> MapData<K, V>
|
|
map(Iterable<K> genK, V value) {
|
|
return new MapData<>(genK, value);
|
|
}
|
|
}
|