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| 33 | PointedEar | 1 | //$Id: EntityResult.java 11282 2007-03-14 22:05:59Z epbernard $ |
| 2 | //EJB3 Specification Copyright 2004-2006 Sun Microsystems, Inc. |
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| 3 | package javax.persistence; |
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| 4 | |||
| 5 | import java.lang.annotation.Target; |
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| 6 | import java.lang.annotation.Retention; |
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| 7 | import java.lang.annotation.RetentionPolicy; |
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| 8 | |||
| 9 | /** |
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| 10 | * References an entity in the SELECT clause of a SQL query. If this annotation is used, |
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| 11 | * the SQL statement should select all of the columns that are mapped to the entity object. |
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| 12 | * This should include foreign key columns to related entities. The results obtained when |
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| 13 | * insufficient data is available are undefined. |
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| 14 | * |
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| 15 | * @author Emmanuel Bernard |
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| 16 | */ |
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| 17 | @Target({}) @Retention(RetentionPolicy.RUNTIME) |
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| 18 | public @interface EntityResult { |
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| 19 | /** |
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| 20 | * The class of the result |
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| 21 | */ |
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| 22 | Class entityClass(); |
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| 23 | /** |
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| 24 | * Maps the columns specified in the SELECT list of the query to the properties or |
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| 25 | * fields of the entity class. |
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| 26 | */ |
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| 27 | FieldResult[] fields() default {}; |
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| 28 | /** |
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| 29 | * Specifies the column name (or alias) of the column in the SELECT list that is used to |
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| 30 | * determine the type of the entity instance. |
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| 31 | */ |
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| 32 | String discriminatorColumn() default ""; |
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| 33 | } |