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36 lines
676 B
36 lines
676 B
package de.hs_fulda.ciip.projjpn;
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import java.util.HashMap;
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public class Customers {
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HashMap<String, User> pool = new HashMap<String, User>();
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public boolean nickNameAvailable(String nickname) {
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User u = pool.get(nickname);
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if (null == u) {
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return true;
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}
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return false;
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}
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/**
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*
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* @param user New User to register.
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* @return
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*/
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public User registerUser(User user) {
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return pool.putIfAbsent(user.nickName, user);
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}
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public User deleteUser(String userNickname) {
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return pool.remove(userNickname);
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}
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public User getByNickname(String nickname) {
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return pool.get(nickname);
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}
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public int getCountOfUsers() {
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return pool.size();
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}
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}
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