gw.util.CaseInsensitiveSet Maven / Gradle / Ivy
/*
* Copyright 2014 Guidewire Software, Inc.
*/
package gw.util;
import java.io.Serializable;
import java.util.AbstractSet;
import java.util.Arrays;
import java.util.Collection;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
public class CaseInsensitiveSet extends AbstractSet implements Set, Serializable {
private final Map _map;
private static final Object MARKER = new Serializable() { };
public CaseInsensitiveSet() {
_map = new CiHashMap();
}
public CaseInsensitiveSet(Collection c) {
this();
addAll(c);
}
public CaseInsensitiveSet(T[] stringArray) {
this(Arrays.asList(stringArray));
}
public CaseInsensitiveSet(int initialCapacity) {
_map = new CiHashMap(initialCapacity);
}
public int size() {
return _map.size();
}
public boolean isEmpty() {
return _map.isEmpty();
}
public boolean contains(Object o) {
//noinspection SuspiciousMethodCalls
return _map.containsKey(o);
}
public Iterator iterator() {
return _map.keySet().iterator();
}
public boolean add(T o) {
return _map.put(o, MARKER) == null;
}
public boolean remove(Object o) {
return _map.remove(o) == MARKER;
}
public void clear() {
_map.clear();
}
}