Package jakarta.persistence
Annotation Type Lob
-
@Target({METHOD,FIELD}) @Retention(RUNTIME) public @interface Lob
Specifies that a persistent property or field should be persisted as a large object to a database-supported large object type.Portable applications should use the
Lob
annotation when mapping to a database Lob type. TheLob
annotation may be used in conjunction with theBasic
annotation or theElementCollection
annotation when the element collection value is of basic type. ALob
may be either a binary or character type.The
Lob
type is inferred from the type of the persistent field or property, and except for string and character-based types defaults to Blob.Example 1: @Lob @Basic(fetch=LAZY) @Column(name="REPORT") protected String report; Example 2: @Lob @Basic(fetch=LAZY) @Column(name="EMP_PIC", columnDefinition="BLOB NOT NULL") protected byte[] pic;
- Since:
- 1.0
- See Also:
Basic
,ElementCollection