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package bjc.utils.funcdata;
import java.util.function.BiConsumer;
import java.util.function.Consumer;
import java.util.function.Function;
import bjc.utils.funcutils.ListUtils;
class ExtendedMap<KeyType, ValueType> implements IMap<KeyType, ValueType> {
private IMap<KeyType, ValueType> delegate;
private IMap<KeyType, ValueType> store;
public ExtendedMap(IMap<KeyType, ValueType> delegate,
IMap<KeyType, ValueType> store) {
this.delegate = delegate;
this.store = store;
}
@Override
public void clear() {
store.clear();
}
@Override
public boolean containsKey(KeyType key) {
if (store.containsKey(key)) {
return true;
}
return delegate.containsKey(key);
}
@Override
public IMap<KeyType, ValueType> extend() {
return new ExtendedMap<>(this, new FunctionalMap<>());
}
@Override
public void forEach(BiConsumer<KeyType, ValueType> action) {
store.forEach(action);
delegate.forEach(action);
}
@Override
public void forEachKey(Consumer<KeyType> action) {
store.forEachKey(action);
delegate.forEachKey(action);
}
@Override
public void forEachValue(Consumer<ValueType> action) {
store.forEachValue(action);
delegate.forEachValue(action);
}
@Override
public ValueType get(KeyType key) {
if (store.containsKey(key)) {
return store.get(key);
}
return delegate.get(key);
}
@Override
public int getSize() {
return store.getSize() + delegate.getSize();
}
@Override
public IList<KeyType> keyList() {
return ListUtils.mergeLists(store.keyList(), delegate.keyList());
}
@Override
public <MappedValue> IMap<KeyType, MappedValue> mapValues(
Function<ValueType, MappedValue> transformer) {
return new TransformedValueMap<>(this, transformer);
}
@Override
public ValueType put(KeyType key, ValueType val) {
return store.put(key, val);
}
@Override
public ValueType remove(KeyType key) {
return store.remove(key);
}
@Override
public IList<ValueType> valueList() {
return ListUtils.mergeLists(store.valueList(),
delegate.valueList());
}
}
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