Package org.nuxeo.ecm.core.storage.dbs

Class DBSTransactionState.ConditionalUpdates

java.lang.Object

org.nuxeo.ecm.core.storage.dbs.DBSTransactionState.ConditionalUpdates

Enclosing class:

DBSTransactionState

public static class DBSTransactionState.ConditionalUpdates
extends Object

Logic to get the conditions to use to match and update a change token.

This may be called several times for a single DBS document update, because the low-level storage may need several database updates for a single high-level update in some cases.

Since:

9.1

Field Summary

Fields

Modifier and Type	Field	Description
protected final List<Runnable>	callbacks
protected final Map<String,Serializable>	conditions
protected final Map<String,Serializable>	updates

Constructor Summary

Constructors

Constructor	Description
ConditionalUpdates()

Method Summary

Modifier and Type	Method	Description
void	addCallback(Runnable callback)	Adds a callback.
void	finish()	To be called by the processor after each update.
Map<String,Serializable>	getConditions()	Gets the conditions to use to match a change token.
Map<String,Serializable>	getUpdates()	Gets the updates to make to write the updated change token.
void	put(Map<String,Serializable> condition, Map<String,Serializable> update)	Puts condition and update.

Methods inherited from class java.lang.Object

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

Field Details

conditions

protected final Map<String,Serializable> conditions

updates

protected final Map<String,Serializable> updates

callbacks

protected final List<Runnable> callbacks

Constructor Details

ConditionalUpdates

public ConditionalUpdates()

Method Details

put

public void put(Map<String,Serializable> condition,
 Map<String,Serializable> update)

Puts condition and update.

addCallback

public void addCallback(Runnable callback)

Adds a callback.

The callback is useful to 1. finish updating internal in-memory document state after an update is done, and 2. prepare a new condition/update if the conditional update is used again.

getConditions

public Map<String,Serializable> getConditions()

Gets the conditions to use to match a change token.

getUpdates

public Map<String,Serializable> getUpdates()

Gets the updates to make to write the updated change token.

finish

public void finish()

To be called by the processor after each update.