Storage.java 文件源码

@ElementCollection
@CollectionTable(name = "storage_tags", 
    foreignKey = @ForeignKey(name = RdbmsConstants.PREFIX + "storage_tags_fk_storage"),
    joinColumns = {
        @JoinColumn(name = "owner_id", referencedColumnName = "owner_id"),
        @JoinColumn(name = "storage_name", referencedColumnName = "name")
})
@MapKeyColumn(name = "tag", nullable = false)
@Column(name = "value", nullable = false)
public Map<String, String> getTags() {
    return tags;
}