Package org.nuxeo.ecm.core.storage.sql

Class CollectionFragment

java.lang.Object

org.nuxeo.ecm.core.storage.sql.Fragment

org.nuxeo.ecm.core.storage.sql.CollectionFragment

All Implemented Interfaces:

Serializable

public class CollectionFragment
extends Fragment

A type of fragment corresponding to several rows with the same id.

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.nuxeo.ecm.core.storage.sql.Fragment

Fragment.State

Field Summary

Fields inherited from class org.nuxeo.ecm.core.storage.sql.Fragment

context, oldvalues, row

Constructor Summary

Constructors

Constructor	Description
CollectionFragment(Row row, Fragment.State state, PersistenceContext context)	Constructs a CollectionFragment from a Row.

Method Summary

Modifier and Type	Method	Description
Serializable[]	get()	Gets the collection value.
RowMapper.RowUpdate	getRowUpdate()	Returns the row update to do in the database to write this value.
boolean	isDirty()	Checks if the array is dirty (values changed since last clear).
static boolean	isPrefix(Serializable[] left, Serializable[] right)	Checks if the left array is a strict prefix of the right one.
protected Fragment.State	refetch()	Refetches this fragment from the database.
protected Fragment.State	refetchDeleted()	Resets the data for a fragment that was invalidated by deletion.
void	set(Serializable[] value)	Sets a collection value.

Methods inherited from class org.nuxeo.ecm.core.storage.sql.Fragment

accessed, clearDirty, getId, getState, markModified, setDeleted, setDetached, setId, setInvalidatedDeleted, setInvalidatedModified, setPristine, toString

Methods inherited from class java.lang.Object

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

Constructor Details

CollectionFragment

public CollectionFragment(Row row,
 Fragment.State state,
 PersistenceContext context)

Constructs a CollectionFragment from a Row.

Parameters:

row - the row

state - the initial state for the fragment

context - the persistence context to which the fragment is tied, or null

Method Details

set

public void set(Serializable[] value)

Sets a collection value.

Parameters:

value - the value

get

public Serializable[] get()

Gets the collection value.

Returns:

the value

isDirty

public boolean isDirty()

Checks if the array is dirty (values changed since last clear).

Returns:

true if the array changed

getRowUpdate

public RowMapper.RowUpdate getRowUpdate()

Description copied from class: Fragment

Returns the row update to do in the database to write this value.

Specified by:

getRowUpdate in class Fragment

Returns:

a row update, or null if the value is unchanged since last clear

isPrefix

public static boolean isPrefix(Serializable[] left,
 Serializable[] right)

Checks if the left array is a strict prefix of the right one.

Since:

8.3

refetch

protected Fragment.State refetch()

Description copied from class: Fragment

Refetches this fragment from the database. Needed when an invalidation has been received and the fragment is accessed again.

Specified by:

refetch in class Fragment

Returns:

the new state, Fragment.State.PRISTINE or Fragment.State.ABSENT

refetchDeleted

protected Fragment.State refetchDeleted()

Description copied from class: Fragment

Resets the data for a fragment that was invalidated by deletion.

Specified by:

refetchDeleted in class Fragment

Returns:

the new state, Fragment.State.PRISTINE or Fragment.State.ABSENT