18 lines
		
	
	
		
			351 B
		
	
	
	
		
			Java
		
	
	
	
	
	
			
		
		
	
	
			18 lines
		
	
	
		
			351 B
		
	
	
	
		
			Java
		
	
	
	
	
	
package com.baeldung.sparkjava;
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import java.util.Collection;
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public interface UserService {
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    public void addUser(User user);
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    public Collection<User> getUsers();
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    public User getUser(String id);
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    public User editUser(User user) throws UserException;
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    public void deleteUser(String id);
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    public boolean userExist(String id);
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}
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