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 Post subject: One-To-One Prevent Join
PostPosted: Fri Dec 01, 2017 2:22 pm 
Newbie

Joined: Fri Dec 01, 2017 2:12 pm
Posts: 1
I have a scenario were I need to query a table that has a One-To-One as part of the ID. I want to speed up the query by not performing the join that automatically occurs. In the past I've had to take the columns that map to the One-To-One and create readonly properties and query off them. Is there a better way to prevent this join?

Examples

[code]
class A {
@Id
@OneToOne
@JoinColumns({
@JoinColumn(name = "prefix", referencedColumnName = "prefix"),
@JoinColumn(name = "number", referencedColumnName = "number")
})
private B b;

@Column(name = "prefix", nullable = false, length = 3, insertable = false, updatable = false)
private String prefix;

@Column(name = "number", nullable = false, length = 10, insertable = false, updatable = false)
private String number;
}
[/code]


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 Post subject: Re: One-To-One Prevent Join
PostPosted: Fri Dec 01, 2017 2:50 pm 
Hibernate Team
Hibernate Team

Joined: Thu Sep 11, 2014 2:50 am
Posts: 1630
Location: Romania
Just set LAZY on the @OneToOne association:

Code:
@OneToOne(detch = FetchType.LAZY)


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