-
@Target(value={METHOD,FIELD}) @Retention(value=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:
- Java Persistence 1.0
- See Also:
Basic
,ElementCollection
Document created the 11/06/2005, last modified the 18/08/2025
Source of the printed document:https://www.gaudry.be/en/java-api-javaee-rf-javax/persistence/Lob.html
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