14.18. Components

Components can be used similarly to the simple value types that are used in HQL queries. They can appear in the select clause as follows:

select p.name from Person p

select p.name from Person p

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select p.name.first from Person p

select p.name.first from Person p

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where the Person's name property is a component. Components can also be used in the where clause:

from Person p where p.name = :name

from Person p where p.name = :name

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from Person p where p.name.first = :firstName

from Person p where p.name.first = :firstName

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Components can also be used in the order by clause:

from Person p order by p.name

from Person p order by p.name

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from Person p order by p.name.first

from Person p order by p.name.first

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Another common use of components is detailed in the "Row Value Constrictor Syntax" section.