org.apache.cayenne.lifecycle.cache

Class CacheInvalidationFilter

java.lang.Object

org.apache.cayenne.lifecycle.cache.CacheInvalidationFilter

All Implemented Interfaces:

DataChannelFilter

public class CacheInvalidationFilter
extends Object
implements DataChannelFilter

A DataChannelFilter that invalidates cache groups defined for mapped entities via CacheGroups annotations.

Since:

3.1

Constructor Summary

Constructors

Constructor and Description
CacheInvalidationFilter()

Method Summary

Methods

Modifier and Type	Method and Description
protected void	addCacheGroups(Set<String> groupSet, Object object) A method that builds a list of cache groups for a given object and adds them to the invalidation group set.
void	init(DataChannel channel)
QueryResponse	onQuery(ObjectContext originatingContext, Query query, DataChannelFilterChain filterChain)
GraphDiff	onSync(ObjectContext originatingContext, GraphDiff changes, int syncType, DataChannelFilterChain filterChain)
protected void	preCommit(Object object) A callback method that records cache group to flush at the end of the commit.

Methods inherited from class java.lang.Object

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

Constructor Detail

CacheInvalidationFilter

public CacheInvalidationFilter()

Method Detail

init

public void init(DataChannel channel)

Specified by:

init in interface DataChannelFilter

onQuery

public QueryResponse onQuery(ObjectContext originatingContext,
                    Query query,
                    DataChannelFilterChain filterChain)

Specified by:

onQuery in interface DataChannelFilter

onSync

public GraphDiff onSync(ObjectContext originatingContext,
               GraphDiff changes,
               int syncType,
               DataChannelFilterChain filterChain)

Specified by:

onSync in interface DataChannelFilter

preCommit

@PrePersist(entityAnnotations=CacheGroups.class)
@PreRemove(entityAnnotations=CacheGroups.class)
@PreUpdate(entityAnnotations=CacheGroups.class)
protected void preCommit(Object object)

A callback method that records cache group to flush at the end of the commit.

addCacheGroups

protected void addCacheGroups(Set<String> groupSet,
                  Object object)

A method that builds a list of cache groups for a given object and adds them to the invalidation group set. This implementation adds all groups defined via CacheGroups annotation for a given class. Subclasses may override this method to provide more fine-grained filtering of cache groups to invalidate, based on the state of the object.