1 files changed, 0 insertions, 148 deletions
diff --git a/BJC-Utils2/src/main/java/bjc/utils/esodata/PushdownMap.java b/BJC-Utils2/src/main/java/bjc/utils/esodata/PushdownMap.java
deleted file mode 100644
index a631704..0000000
--- a/BJC-Utils2/src/main/java/bjc/utils/esodata/PushdownMap.java
+++ /dev/null
@@ -1,148 +0,0 @@
-package bjc.utils.esodata;
-
-import java.util.function.BiConsumer;
-import java.util.function.Consumer;
-import java.util.function.Function;
-
-import bjc.utils.funcdata.FunctionalMap;
-import bjc.utils.funcdata.IList;
-import bjc.utils.funcdata.IMap;
-
-/**
- * A variant of a map where inserting a duplicate key shadows the existing value
- * instead of replacing it.
- *
- * @author EVE
- *
- * @param <KeyType>
- *                The key of the map.
- * @param <ValueType>
- *                The values in the map.
- */
-public class PushdownMap<KeyType, ValueType> implements IMap<KeyType, ValueType> {
-	private final IMap<KeyType, Stack<ValueType>> backing;
-
-	/**
-	 * Create a new empty stack-based map.
-	 */
-	public PushdownMap() {
-		backing = new FunctionalMap<>();
-	}
-
-	private PushdownMap(final IMap<KeyType, Stack<ValueType>> back) {
-		backing = back;
-	}
-
-	@Override
-	public void clear() {
-		backing.clear();
-	}
-
-	@Override
-	public boolean containsKey(final KeyType key) {
-		return backing.containsKey(key);
-	}
-
-	@Override
-	public IMap<KeyType, ValueType> extend() {
-		return new PushdownMap<>(backing.extend());
-	}
-
-	@Override
-	public void forEach(final BiConsumer<KeyType, ValueType> action) {
-		backing.forEach((key, stk) -> action.accept(key, stk.top()));
-	}
-
-	@Override
-	public void forEachKey(final Consumer<KeyType> action) {
-		backing.forEachKey(action);
-	}
-
-	@Override
-	public void forEachValue(final Consumer<ValueType> action) {
-		backing.forEachValue(stk -> action.accept(stk.top()));
-	}
-
-	@Override
-	public ValueType get(final KeyType key) {
-		return backing.get(key).top();
-	}
-
-	@Override
-	public int size() {
-		return backing.size();
-	}
-
-	@Override
-	public IList<KeyType> keyList() {
-		return backing.keyList();
-	}
-
-	@Override
-	public <V2> IMap<KeyType, V2> transform(final Function<ValueType, V2> transformer) {
-		throw new UnsupportedOperationException("Cannot transform pushdown maps.");
-	}
-
-	@Override
-	public ValueType put(final KeyType key, final ValueType val) {
-		if (backing.containsKey(key)) {
-			final Stack<ValueType> stk = backing.get(key);
-
-			final ValueType vl = stk.top();
-
-			stk.push(val);
-
-			return vl;
-		} else {
-			final Stack<ValueType> stk = new SimpleStack<>();
-
-			stk.push(val);
-
-			return null;
-		}
-	}
-
-	@Override
-	public ValueType remove(final KeyType key) {
-		final Stack<ValueType> stk = backing.get(key);
-
-		if (stk.size() > 1)
-			return stk.pop();
-		else return backing.remove(key).top();
-	}
-
-	@Override
-	public IList<ValueType> valueList() {
-		return backing.valueList().map(stk -> stk.top());
-	}
-
-	@Override
-	public int hashCode() {
-		final int prime = 31;
-
-		int result = 1;
-		result = prime * result + (backing == null ? 0 : backing.hashCode());
-
-		return result;
-	}
-
-	@Override
-	public boolean equals(final Object obj) {
-		if (this == obj) return true;
-		if (obj == null) return false;
-		if (!(obj instanceof PushdownMap<?, ?>)) return false;
-
-		final PushdownMap<?, ?> other = (PushdownMap<?, ?>) obj;
-
-		if (backing == null) {
-			if (other.backing != null) return false;
-		} else if (!backing.equals(other.backing)) return false;
-
-		return true;
-	}
-
-	@Override
-	public String toString() {
-		return String.format("PushdownMap [backing=%s]", backing);
-	}
-}