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// $Id: Lob.java 17752 2009-10-15 01:19:21Z [email protected] $
// EJB3 Specification Copyright 2004-2009 Sun Microsystems, Inc.
package javax.persistence;

import java.lang.annotation.Target;
import java.lang.annotation.Retention;
import static java.lang.annotation.ElementType.FIELD;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.RetentionPolicy.RUNTIME;

/**
 * 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. The Lob * annotation may be used in conjunction with the {@link Basic} * annotation or the {@link ElementCollection} annotation when the * element collection value is of basic type. A Lob 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;
 *
 * 
* * @see Basic * @see ElementCollection * * @since Java Persistence 1.0 */ @Target({METHOD, FIELD}) @Retention(RUNTIME) public @interface Lob { }




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