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POControl sort order of Hibernate EnumType.STRING properties
 

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    <p>Currently, my project uses <code>@Enumerated(EnumType.ORDINAL)</code>, so when I sort by this column, it is ordering based on the order in the <code>enum</code>, which works fine. But I need to add some additional values to the <code>enum</code>, which need to be inserted at different locations in the list of enum values and can't be just added to the bottom to maintain the correct sort order. </p> <p>If I do this, my database will be messed up. I'll have to write some scripts to translate all these ordinal values to the correct new ordinal. There is a possibility that more status will have to be added later. Since I have to fix all the data in the database, I'd like to only have to do it once, as it will be a big task. </p> <p>So I'm thinking of switching to <code>EnumType.STRING</code> to not have to remap ordinal values in the database again. But if I do this, then how do I sort properly? The alphabetical order of the enum strings is not the order I need.</p> <p>Using the classes below, when I sort by the property "status", the results come out in this order:</p> <pre><code>hql = "from Project order by status" Development Planning Production </code></pre> <p>I'd like them to come out in this order, without using <code>EnumType.ORDINAL</code>:</p> <pre><code>Planning Development Production </code></pre> <p>Is this possible without creating a table for the <code>enum</code>, or adding an additional column to the <code>Project</code> class? I've tried this, but it throws an exception:</p> <pre><code>hql = "from Project order by status.sort" </code></pre> <p>The enum:</p> <pre><code>public enum Status { PLANNING("Planning", 0), DEVELOPMENT("Development", 1), PRODUCTION("Production", 2); private final String name; private final int sort; private Status(String name, int sort) { this.name = name; this.sort = sort; } @Override public String toString() { return name; } } </code></pre> <p>The entity:</p> <pre><code>@Entity public class Project { private Long id; private Status status; @Id @GeneratedValue public Long getId() { return this.id; } private void setId(Long id) { this.id = id; } @Enumerated(EnumType.STRING) public Status getStatus() { return status; } public void setStatus(Status status) { this.status = status; } } </code></pre>
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