er.extensions.eof

Class ERXArrayFaultCache

java.lang.Object

er.extensions.eof.ERXArrayFaultCache

public class ERXArrayFaultCache
extends Object

Provides a cache for to-many faults. Useful when you have a lot (say a few thousand) objects for which you need to access a to-many relationship that hasn't been fetched yet. The idea is that instead of batch-faulting you could fetch all the entries for a given to-many relationship in one fetch (as raw rows), group them in memory and register the faults here. Then you set up your EODatabaseContext delegate to use this object to try and clear the fault first.

Author:

ak

Constructor Summary

Constructors

Constructor and Description
ERXArrayFaultCache()

Method Summary

Modifier and Type	Method and Description
boolean	clearFault(Object obj) Attempts to clear a fault by looking up the source global id and faulting in the corresponding destination values.
void	registerRelationshipCacheEntries(String entityName, String relationshipName, NSDictionary entries) Register the to-many faults by entity name and relationship name.

Methods inherited from class java.lang.Object

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

Constructor Detail

ERXArrayFaultCache

public ERXArrayFaultCache()

Method Detail

registerRelationshipCacheEntries

public void registerRelationshipCacheEntries(String entityName,
                                             String relationshipName,
                                             NSDictionary entries)

Register the to-many faults by entity name and relationship name. The entries are a dictionary where the key is the source EOGlobalID for the relationship and the values are arrays of global IDs for the destination.

Parameters:

entityName -

relationshipName -

entries -

clearFault

public boolean clearFault(Object obj)

Attempts to clear a fault by looking up the source global id and faulting in the corresponding destination values.

Parameters:

obj -

Returns:

true if the fault could be cleared or it wasn't a fault in the first place, false if not