com.atlassian.confluence.pages.persistence.dao.hibernate
Class HibernateAttachmentDataDao

java.lang.Object
  org.springframework.dao.support.DaoSupport
      org.springframework.orm.hibernate.support.HibernateDaoSupport
          com.atlassian.hibernate.HibernateObjectDao
              com.atlassian.confluence.pages.persistence.dao.hibernate.HibernateAttachmentDataDao

All Implemented Interfaces:

ObjectDao, AttachmentDataDao, TransactionalAttachmentDataDao, org.springframework.beans.factory.InitializingBean

public class HibernateAttachmentDataDao
extends HibernateObjectDao
implements TransactionalAttachmentDataDao

This class defines an AttachmentDataDao that stores Attachment data in a Hibernate-managed database.

As a result, it is transactional (can be rolled back), so it implements the TransactionalAttachmentDataDao interface.

Field Summary

Fields inherited from class org.springframework.dao.support.DaoSupport

logger

Constructor Summary

HibernateAttachmentDataDao()

Method Summary

void	afterMigrationFrom() Once a data migration has occurred, remove all records from the table, as they are no longer necessary, and we don't want foreign key violations to occur when removing Attachments.
java.util.List	findAll() Find all objects of the class provided by getPersistentClass()
java.util.List	findAllSorted(java.lang.String s) Find all objects currently persisted of a particular type and sort results by named property.
protected AttachmentData	getAttachmentDataForAttachment(Attachment attachment) Retrieves the attachment data object for a given attachment.
java.io.InputStream	getDataForAttachment(Attachment attachment) Grabs the AttachmentData object for an Attachment
java.lang.Class	getPersistentClass()
AttachmentDataStorageType	getStorageType() Returns the storage type.
boolean	isAttachmentPresent(Attachment attachment) Check that an attachment exists
void	moveAttachment(Attachment attachment, Attachment oldAttachment, ContentEntityObject newContent) Moves an attachment to a new file name or content object
void	moveDataForAttachmentVersion(Attachment sourceAttachmentVersion, Attachment targetAttachmentVersion) Moves the attachment data from one AbstractVersionedEntityObject.getVersion() to the other.
void	prepareForMigrationTo() This implementation clears out the Attachment data table, so we have a clean base for migration.
void	removeDataForAttachment(Attachment attachment, ContentEntityObject originalContent) Removes all attachment data for the given attachment.
void	removeDataForAttachmentVersion(Attachment attachment, ContentEntityObject originalContent) Removes the attachment data for the given attachment version.
void	replaceDataForAttachment(Attachment attachment, java.io.InputStream data) Sets the data for attachment This method will overwrite any existing data for the attachment.
void	save(com.atlassian.core.bean.EntityObject objectToSave) Save an object.
void	saveDataForAttachment(Attachment attachment, java.io.InputStream data) Saves data to the attachment data store
void	saveDataForAttachmentVersion(Attachment attachment, Attachment previousVersion, java.io.InputStream data) Saves data to the attachment data store, for an attachment that has been updated.

Methods inherited from class com.atlassian.hibernate.HibernateObjectDao

findAllSorted, findNamedQuery, findNamedQuery, findNamedQuery, findNamedQueryStringParam, findNamedQueryStringParam, findNamedQueryStringParam, findNamedQueryStringParams, findNamedQueryStringParams, findNamedQueryStringParams, findNamedQueryStringParams, findNamedQueryStringParams, findNamedQueryStringParams, findNamedQueryStringParams, findNamedQueryStringParams, findNamedQueryStringParams, findNamedQueryStringParams, findSingleObject, getByClassId, getCountResult, index, refresh, reIndex, remove, replicate, saveRaw, setIndexer, unIndex, uniqueResult, updateModificationData

Methods inherited from class org.springframework.orm.hibernate.support.HibernateDaoSupport

checkDaoConfig, convertHibernateAccessException, createHibernateTemplate, getHibernateTemplate, getSession, getSession, getSessionFactory, releaseSession, setHibernateTemplate, setSessionFactory

Methods inherited from class org.springframework.dao.support.DaoSupport

afterPropertiesSet, initDao

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

HibernateAttachmentDataDao

public HibernateAttachmentDataDao()

Method Detail

findAll

public java.util.List findAll()

Description copied from class: HibernateObjectDao

Find all objects of the class provided by getPersistentClass()

Specified by:

findAll in interface ObjectDao

Overrides:

findAll in class HibernateObjectDao

Returns:

a list of all objects of the appropriate class, or the empty list if no objects are found

findAllSorted

public java.util.List findAllSorted(java.lang.String s)

Description copied from interface: ObjectDao

Find all objects currently persisted of a particular type and sort results by named property.

Specified by:

findAllSorted in interface ObjectDao

Overrides:

findAllSorted in class HibernateObjectDao

Parameters:

s - the name of the property to be sorted on. This should be null if no sorting is required.

save

public void save(com.atlassian.core.bean.EntityObject objectToSave)

Description copied from class: HibernateObjectDao

Save an object. The object's last-modified time will be updated, and if the object is searchable it will be indexed.

Specified by:

save in interface ObjectDao

Overrides:

save in class HibernateObjectDao

getPersistentClass

public java.lang.Class getPersistentClass()

Specified by:

getPersistentClass in interface ObjectDao

getAttachmentDataForAttachment

protected AttachmentData getAttachmentDataForAttachment(Attachment attachment)
                                                 throws AttachmentDataNotFoundException

Retrieves the attachment data object for a given attachment.

Parameters:

attachment - the attachment to retrieve data for

Returns:

attachment data for the provided attachment

Throws:

AttachmentDataNotFoundException - if the attachment data is not found

org.springframework.dao.IncorrectResultSizeDataAccessException - if the database contains more than one data object associated with the given attachment

getDataForAttachment

public java.io.InputStream getDataForAttachment(Attachment attachment)
                                         throws AttachmentDataNotFoundException

Description copied from interface: AttachmentDataDao

Grabs the AttachmentData object for an Attachment

Specified by:

getDataForAttachment in interface AttachmentDataDao

Parameters:

attachment - the Attachment representing the data

Returns:

an AttachmentData object

Throws:

AttachmentDataNotFoundException - if no data was found

removeDataForAttachment

public void removeDataForAttachment(Attachment attachment,
                                    ContentEntityObject originalContent)

Description copied from interface: AttachmentDataDao

Removes all attachment data for the given attachment. Since Confluence 4.2 the contract of this method has been clarified. It now removes all versions of the given attachment.

Specified by:

removeDataForAttachment in interface AttachmentDataDao

Parameters:

attachment - the latest version of the attachment for which the data should be removed

originalContent - the content the attachment belongs to

removeDataForAttachmentVersion

public void removeDataForAttachmentVersion(Attachment attachment,
                                           ContentEntityObject originalContent)

Description copied from interface: AttachmentDataDao

Removes the attachment data for the given attachment version.

Specified by:

removeDataForAttachmentVersion in interface AttachmentDataDao

Parameters:

attachment - the version of the attachment for which the data should be removed

originalContent - the content the attachment belongs to

moveDataForAttachmentVersion

public void moveDataForAttachmentVersion(Attachment sourceAttachmentVersion,
                                         Attachment targetAttachmentVersion)

Description copied from interface: AttachmentDataDao

Moves the attachment data from one AbstractVersionedEntityObject.getVersion() to the other.

This method will overwrite any existing data for the target attachment version.

Specified by:

moveDataForAttachmentVersion in interface AttachmentDataDao

Parameters:

sourceAttachmentVersion - the attachment

See Also:

AttachmentDataDao.moveAttachment(Attachment, Attachment, ContentEntityObject)

saveDataForAttachment

public void saveDataForAttachment(Attachment attachment,
                                  java.io.InputStream data)

Description copied from interface: AttachmentDataDao

Saves data to the attachment data store

Specified by:

saveDataForAttachment in interface AttachmentDataDao

Parameters:

attachment - the Attachment the data belongs to

data - the InputStream to be written

saveDataForAttachmentVersion

public void saveDataForAttachmentVersion(Attachment attachment,
                                         Attachment previousVersion,
                                         java.io.InputStream data)

Description copied from interface: AttachmentDataDao

Saves data to the attachment data store, for an attachment that has been updated.

This method assumes that the attachment has already been saved.

Specified by:

saveDataForAttachmentVersion in interface AttachmentDataDao

Parameters:

attachment - the new version of the attachment

previousVersion - the previous version of the attachment

data - the InputStream representing the data

replaceDataForAttachment

public void replaceDataForAttachment(Attachment attachment,
                                     java.io.InputStream data)

Description copied from interface: AttachmentDataDao

Sets the data for attachment This method will overwrite any existing data for the attachment.

Specified by:

replaceDataForAttachment in interface AttachmentDataDao

Parameters:

attachment - Attachment the data belongs to

data - the data to be saved

isAttachmentPresent

public boolean isAttachmentPresent(Attachment attachment)

Description copied from interface: AttachmentDataDao

Check that an attachment exists

Specified by:

isAttachmentPresent in interface AttachmentDataDao

Parameters:

attachment - the Attachment to be checked

moveAttachment

public void moveAttachment(Attachment attachment,
                           Attachment oldAttachment,
                           ContentEntityObject newContent)

Description copied from interface: AttachmentDataDao

Moves an attachment to a new file name or content object

Specified by:

moveAttachment in interface AttachmentDataDao

Parameters:

attachment - the Attachment to be moved

oldAttachment - the original version of the attachment

newContent - the new content the Attachment belongs to

prepareForMigrationTo

public void prepareForMigrationTo()

This implementation clears out the Attachment data table, so we have a clean base for migration. It circumvents hibernate, so should only be called when nobody else can see the attachment data.

Specified by:

prepareForMigrationTo in interface AttachmentDataDao

afterMigrationFrom

public void afterMigrationFrom()

Once a data migration has occurred, remove all records from the table, as they are no longer necessary, and we don't want foreign key violations to occur when removing Attachments. It circumvents hibernate, so should only be called when nobody else can see the data.

Specified by:

afterMigrationFrom in interface AttachmentDataDao

getStorageType

public AttachmentDataStorageType getStorageType()

Description copied from interface: AttachmentDataDao

Returns the storage type.

The client code should be storage agnostic in general. Thus this method should only be used in rare cases in order to hide operations which are known to be not implemented for the specific type.

Specified by:

getStorageType in interface AttachmentDataDao

Returns:

the storage type