package de.japrost.jabudget.domain.account;
   
   import java.util.Optional;
   
   /**
    * Builder for {@link Entry}.
    */
   public class EntryBuilder {
   
  	private String accountId;
  	private String code;
  	private String subject;
  
  	/**
  	 * Create an empty builder.
  	 */
  	public EntryBuilder() {
  	}
  
  	/**
  	 * Create a builder by example.
  	 *
  	 * @param example the example to use. MAY BE {@code null}.
  	 */
  	public EntryBuilder(final Entry example) {
  		if (example != null) {
  			this.accountId = example.getAccountId();
  			this.code = example.getCode();
  			this.subject = example.getSubject();
  		}
  	}
  
  	/**
  	 * Factory for a an empty builder.
  	 *
  	 * @return a new builder.
  	 */
  	public static EntryBuilder builder() {
  		return new EntryBuilder();
  	}
  
  	/**
  	 * Factory for a builder by example.
  	 *
  	 * @param example the example to use. MAY BE {@code null}.
  	 * @return a builder filled with value of example.
  	 */
  	public static EntryBuilder builder(Entry example) {
  		return new EntryBuilder(example);
  	}
  	/**
  	 * Build the result.
  	 *
  	 * @return a new instance.
  	 */
  	public Entry build() {
  		final Entryin/account/Entry.html#Entry">Entry result = new Entry(accountId,code,subject);
  		return result;
  	}
  
  
  	/**
  	 * Build if the result would be valid.
  	 *
  	 * @return a instance or an empty optional.
  	 */
  	public Optional<Entry> buildOptional() {
  		// TODO where to put this validation?
  		if (accountId == null || code == null || subject == null) {
  			return Optional.empty();
  		}
  		final Entryin/account/Entry.html#Entry">Entry result = new Entry(accountId,code,subject);
  		return Optional.of(result);
  	}
  
  	/**
  	 * @see Entry#getAccountId()
  	 */
  	public void setAccountId(String accountId) {
  		this.accountId = accountId;
  	}
  
  	/**
  	 * @see Entry#getCode()
  	 */
  	public void setCode(String code) {
  		this.code = code;
  	}
  
  	/**
  	 * @see Entry#getSubject()
  	 */
  	public void setSubject(String subject) {
  		this.subject = subject;
  	}
  }