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er.extensions
Class ERXDefaultEditingContextDelegate  

java.lang.Object
  er.extensions.ERXEditingContextDelegate
      er.extensions.ERXDefaultEditingContextDelegate

Direct Known Subclasses:

ERXECNoValidationDelegate

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public class ERXDefaultEditingContextDelegate

extends ERXEditingContextDelegate

Default editing context delegate. This delegate augments the regular transaction process by adding the calling of willInsert, willUpdate or willDelete on enterprise objects that are of type ERXGenericRecord after saveChanges is called on the editing context, but before validateForSave is called on the object. These methods can give the object a last chance to modify itself before validation occurs. The second enhancement is a built in flushing of caches on subclasses of ERXGenericRecords when objects have changes merged in or are invalidated. Being able to maintain caches on enterprise objects that are flushed when the underlying values change can be very handy.

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Field Summary
private  boolean	_isInWillSaveChanges           flag that can tell if the editing context is in the middle of a will save changes call.
static ERXLogger	log           logging support
static ERXLogger	logMod           logging support for modified objects

 

Constructor Summary

ERXDefaultEditingContextDelegate()

 

Method Summary
boolean	editingContextShouldInvalidateObject(EOEditingContext anEOEditingContext, EOEnterpriseObject anObject, EOGlobalID anEOGlobalID)           When invalidating an object their local cache is flushed by calling the method: flushCaches on the enterprise object if it is an instance of ERXGenericRecord.
boolean	editingContextShouldMergeChangesForObject(EOEditingContext anEditingContext, EOEnterpriseObject object)           When merging changes into an object their local cache is flushed by calling the method: flushCaches on the enterprise object if it is an instance of ERXGenericRecord.
void	editingContextWillSaveChanges(EOEditingContext ec)           Enumerates through all of the objects that have been changed, inserted and deleted calling the appropriate will* method, willInsert, etc.
boolean	isInWillSaveChanges()           Can tell if the delegate is in the middle of a call to will save changes.
private static java.lang.String	toDebugString(EOEnterpriseObject eo)           Returns a string of a verbose look a the given enterprise object.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

log

public static final ERXLogger log

logging support

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logMod

public static final ERXLogger logMod

logging support for modified objects

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_isInWillSaveChanges

private boolean _isInWillSaveChanges

flag that can tell if the editing context is in the middle of a will save changes call.

Constructor Detail

ERXDefaultEditingContextDelegate

public ERXDefaultEditingContextDelegate()

Method Detail

isInWillSaveChanges

public boolean isInWillSaveChanges()

Can tell if the delegate is in the middle of a call to will save changes.

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editingContextWillSaveChanges

public void editingContextWillSaveChanges(EOEditingContext ec)
                                   throws java.lang.Throwable

Enumerates through all of the objects that have been changed, inserted and deleted calling the appropriate will* method, willInsert, etc. on each of the objects if they are of type ERXGenericRecord. Note that this method is called before validateForSave is called on any of the objects.

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toDebugString

private static java.lang.String toDebugString(EOEnterpriseObject eo)

Returns a string of a verbose look a the given enterprise object. Also includes the primary key.

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editingContextShouldInvalidateObject

public boolean editingContextShouldInvalidateObject(EOEditingContext anEOEditingContext,
                                                    EOEnterpriseObject anObject,
                                                    EOGlobalID anEOGlobalID)

When invalidating an object their local cache is flushed by calling the method: flushCaches on the enterprise object if it is an instance of ERXGenericRecord.

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editingContextShouldMergeChangesForObject

public boolean editingContextShouldMergeChangesForObject(EOEditingContext anEditingContext,
                                                         EOEnterpriseObject object)

When merging changes into an object their local cache is flushed by calling the method: flushCaches on the enterprise object if it is an instance of ERXGenericRecord.

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