THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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In short, an embeddable is a seperation of data into a Java class that relies on the owning Entity for it's identity. Many(most) times an embeddable resides in the same database row as the owning Entity.
Review the getting started page on how to run the samples.
Samples
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... // Select Entity based off a query over a collection of embeddables Query q = em.createQuery("SELECT u FROM User u , in (u.addresses) a WHERE a.state='xx'"); // TODO -- add more! ... |
Relationships from Embeddables
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... // Embedded -> relationship traversal Query q = em.createQuery("SELECT u FROM User u , in (u.addresses) a WHERE a.coordinates.longitude=xxx"); // TODO -- add more! ... |
Nested Embeddables
In the code snippet below, there is a User Entity which has an embedded ContactInfo. ContactInfo contains two other embeddeded embeddables, Address and Phone.
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... // Nested embeddables traversal Query q = em.createQuery("SELECT u FROM User u WHERE u.contactInfo.homePhone.number='507-555-5555' AND u.contactInfo.homePhone.type='cell'"); // TODO -- add more! ... |