Package org.apache.cayenne.access.flush

Class DefaultDataDomainFlushAction

java.lang.Object

org.apache.cayenne.access.flush.DefaultDataDomainFlushAction

All Implemented Interfaces:

DataDomainFlushAction

public class DefaultDataDomainFlushAction
extends Object
implements DataDomainFlushAction

Default implementation of DataDomainFlushAction.

Since:

4.2

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	DefaultDataDomainFlushAction.PhantomDbRowOpCleaner

Field Summary

Fields

Modifier and Type	Field	Description
protected final DataDomain	dataDomain
protected final DbRowOpSorter	dbRowOpSorter
protected final JdbcEventLogger	jdbcEventLogger
protected final OperationObserver	observer

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	DefaultDataDomainFlushAction(DataDomain dataDomain, DbRowOpSorter dbRowOpSorter, JdbcEventLogger jdbcEventLogger)

Method Summary

Modifier and Type	Method	Description
protected List<DbRowOp>	createDbRowOps(ObjectStore objectStore, ObjectStoreGraphDiff changes)	Create ops based on incoming graph changes
protected List<? extends Query>	createQueries(List<DbRowOp> dbRowOps)
protected void	createReplacementIds(ObjectStore store, CompoundDiff afterCommitDiff, List<DbRowOp> dbRowOps)	Set final ObjectId for persistent objects
protected void	executeQueries(List<? extends Query> queries)	Execute queries, grouping them by nodes
protected List<DbRowOp>	filterOps(List<DbRowOp> dbRowOps)
GraphDiff	flush(DataContext context, GraphDiff changes)
protected List<DbRowOp>	mergeSameObjectIds(List<DbRowOp> dbRowOps)
protected void	postprocess(DataContext context, ObjectStoreGraphDiff changes, CompoundDiff afterCommitDiff, List<DbRowOp> dbRowOps)	Notify ObjectStore and it's data row cache about actual changes we performed.
protected List<DbRowOp>	sort(List<DbRowOp> dbRowOps)	Sort all operations
protected void	updateObjectIds(Collection<DbRowOp> dbRowOps)	Fill in replacement IDs' data for given operations

Methods inherited from class java.lang.Object

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

Field Details

dataDomain

protected final DataDomain dataDomain

dbRowOpSorter

protected final DbRowOpSorter dbRowOpSorter

jdbcEventLogger

protected final JdbcEventLogger jdbcEventLogger

observer

protected final OperationObserver observer

Constructor Details

DefaultDataDomainFlushAction

protected DefaultDataDomainFlushAction(DataDomain dataDomain,
 DbRowOpSorter dbRowOpSorter,
 JdbcEventLogger jdbcEventLogger)

Method Details

flush

public GraphDiff flush(DataContext context,
 GraphDiff changes)

Specified by:

flush in interface DataDomainFlushAction

createDbRowOps

protected List<DbRowOp> createDbRowOps(ObjectStore objectStore,
 ObjectStoreGraphDiff changes)

Create ops based on incoming graph changes

Parameters:

objectStore - originating object store

changes - object graph diff

Returns:

collection of DbRowOp

updateObjectIds

protected void updateObjectIds(Collection<DbRowOp> dbRowOps)

Fill in replacement IDs' data for given operations

Parameters:

dbRowOps - collection of DbRowOp

mergeSameObjectIds

protected List<DbRowOp> mergeSameObjectIds(List<DbRowOp> dbRowOps)

Parameters:

dbRowOps - collection of DbRowOp

Returns:

collection of ops with merged duplicates

filterOps

protected List<DbRowOp> filterOps(List<DbRowOp> dbRowOps)

sort

protected List<DbRowOp> sort(List<DbRowOp> dbRowOps)

Sort all operations

Parameters:

dbRowOps - collection of DbRowOp

Returns:

sorted collection of operations

See Also:

• interface and it's default implementation

createQueries

protected List<? extends Query> createQueries(List<DbRowOp> dbRowOps)

Parameters:

dbRowOps - collection of DbRowOp

Returns:

collection of Query to perform

executeQueries

protected void executeQueries(List<? extends Query> queries)

Execute queries, grouping them by nodes

Parameters:

queries - to execute

createReplacementIds

protected void createReplacementIds(ObjectStore store,
 CompoundDiff afterCommitDiff,
 List<DbRowOp> dbRowOps)

Set final ObjectId for persistent objects

Parameters:

store - object store

afterCommitDiff - result graph diff

dbRowOps - collection of DbRowOp

postprocess

protected void postprocess(DataContext context,
 ObjectStoreGraphDiff changes,
 CompoundDiff afterCommitDiff,
 List<DbRowOp> dbRowOps)

Notify ObjectStore and it's data row cache about actual changes we performed.

Parameters:

context - originating context

changes - incoming diff

afterCommitDiff - resulting diff

dbRowOps - collection of DbRowOp