I was wondering if there was a way to have the fileData property lazy (instead of the whole class). That way i could show a file list and only retrieve the fileData when needed.

The mapping is below:


Hibernate version: 2.1.6

Mapping documents:

<class name="ProjectFile" table="project_file" lazy="true">

<meta attribute="implement-equals">true</meta>

<id name="projectFileId"
type="long"
column="project_file_id"
unsaved-value="-1">
<generator class="native"/>
</id>

<many-to-one name="project"
class="com.123.Project"
column="project_id"
unique="true"
not-null="true">
<meta attribute="use-in-tostring">true</meta>
<meta attribute="use-in-equals">true</meta>
</many-to-one>

<property name="fileName"
column="file_name"
type="string"
length="250"
not-null="false">
<meta attribute="use-in-tostring">true</meta>
<meta attribute="use-in-equals">true</meta>
</property>

<property name="mimeType"
column="mime_type"
type="string"
length="50"
not-null="false">
<meta attribute="use-in-tostring">true</meta>
</property>

<property name="dateCreated"
column="date_created"
type="timestamp"
not-null="false">
<meta attribute="use-in-tostring">true</meta>
<meta attribute="use-in-equals">true</meta>
</property>

<property name="fileSize"
column="file_size"
type="int"
not-null="false">
</property>

<property name="fileData"
column="file_data"
type="binary"
length="5000000"
not-null="false">
</property>

</class>

Thanks in advance.

I suggest to manage file content outside ProjectFile class and manage them as streams to support large files and never load all in memory