Package javax.persistence
Annotation Type Lob
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@Target({METHOD,FIELD}) @Retention(RUNTIME) public @interface LobSpecifies 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
Lobannotation when mapping to a database Lob type. TheLobannotation may be used in conjunction with theBasicannotation or theElementCollectionannotation when the element collection value is of basic type. ALobmay be either a binary or character type.The
Lobtype 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;
- See Also:
Basic,ElementCollection- Since:
- 1.0