Package org.apache.cayenne

Interface DataChannelFilter

All Superinterfaces:

DataChannelQueryFilter, DataChannelSyncFilter

@Deprecated
public interface DataChannelFilter
extends DataChannelSyncFilter, DataChannelQueryFilter

Deprecated.

since 4.1 use DataChannelQueryFilter and DataChannelSyncFilter

An interface of a filter that allows to intercept DataChannel operations. Filters allow to implement chains of custom processors around a DataChannel, that can be used for security, monitoring, business logic, providing context to lifecycle event listeners, etc.

Since:

3.1

Method Summary

Modifier and Type	Method	Description
void	init(DataChannel channel)	Deprecated.
QueryResponse	onQuery(ObjectContext originatingContext, Query query, DataChannelFilterChain filterChain)	Deprecated.
default QueryResponse	onQuery(ObjectContext originatingContext, Query query, DataChannelQueryFilterChain filterChain)	Deprecated. Adapter method that allows to use old DataChannelFilter as new query filter
GraphDiff	onSync(ObjectContext originatingContext, GraphDiff changes, int syncType, DataChannelFilterChain filterChain)	Deprecated.
default GraphDiff	onSync(ObjectContext originatingContext, GraphDiff changes, int syncType, DataChannelSyncFilterChain filterChain)	Deprecated. Adapter method that allows to use old DataChannelFilter as new sync filter

Method Details

init

void init(DataChannel channel)

Deprecated.

onQuery

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

Deprecated.

onSync

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

Deprecated.

onQuery

default QueryResponse onQuery(ObjectContext originatingContext,
 Query query,
 DataChannelQueryFilterChain filterChain)

Deprecated.

Adapter method that allows to use old DataChannelFilter as new query filter

Specified by:

onQuery in interface DataChannelQueryFilter

Parameters:

originatingContext - originating context of query

query - that is processed

filterChain - chain of query filters to invoke after this filter

Returns:

query response

onSync

default GraphDiff onSync(ObjectContext originatingContext,
 GraphDiff changes,
 int syncType,
 DataChannelSyncFilterChain filterChain)

Deprecated.

Adapter method that allows to use old DataChannelFilter as new sync filter

Specified by:

onSync in interface DataChannelSyncFilter

Parameters:

originatingContext - originating context of changes

changes - diff that is being processed

syncType - type of sync; possible values: DataChannel.FLUSH_NOCASCADE_SYNC, DataChannel.FLUSH_CASCADE_SYNC, DataChannel.ROLLBACK_CASCADE_SYNC

filterChain - chain of sync filters to invoke after this filter

Returns:

final context diff

See Also:

• DataChannel.FLUSH_NOCASCADE_SYNC
• DataChannel.FLUSH_CASCADE_SYNC
• DataChannel.ROLLBACK_CASCADE_SYNC