How to Use FetchMode.JOIN to Fetch Collection

Language: Java, Expertise: Intermediate: See what happens when you annotate an associated collection with FetchMode.JOIN.

by Octavia Anghel

Jan 16, 2020

By annotating an associated collection with FetchMode.JOIN we force it to be loaded EAGER:

@OneToMany(fetch = FetchType.LAZY)
@Fetch(FetchMode.JOIN)
private List = new ArrayList();

Or:

@ManyToOne(fetch = FetchType.LAZY) 
@JoinColumn(name = "foo_id") 
@Fetch(FetchMode.JOIN) 
private Foo foo;

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