54 lines
1.7 KiB
Java
54 lines
1.7 KiB
Java
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package Trolleybus;
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import java.util.HashMap;
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import java.util.List;
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import java.util.stream.Collectors;
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public class BusesGenericStorage {
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final HashMap<String, BusesGenericCollection<DrawingBus, DrawingObjectBus>> _busStorages;
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public List<String> Keys() {
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if (_busStorages == null) {
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return null;
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}
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return _busStorages.keySet().stream().collect(Collectors.toList());
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}
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private final int _pictureWidth;
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private final int _pictureHeight;
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public BusesGenericStorage(int pictureWidth, int pictureHeight) {
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_busStorages = new HashMap<>();
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_pictureWidth = pictureWidth;
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_pictureHeight = pictureHeight;
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}
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public void AddSet(String name)
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{
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// проверка, существует ли набор с таким ключём
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if (_busStorages.containsKey(name))
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{
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return;
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}
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_busStorages.put(name, new BusesGenericCollection<>(_pictureWidth, _pictureHeight));
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}
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public void DelSet(String name) {
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if (!_busStorages.containsKey(name)) {
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return;
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}
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_busStorages.remove(name);
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}
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//В Java нельзя перегружать операторы, в том числе индексаторы, поэтому ниже их замены
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public BusesGenericCollection<DrawingBus, DrawingObjectBus> Get(String name){
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if (!_busStorages.containsKey(name)) {
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return null;
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}
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return _busStorages.get(name);
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}
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public DrawingBus Get(String nameOfCollection, int positionInCollection){
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return _busStorages.get(nameOfCollection).Get(positionInCollection);
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}
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}
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