er.extensions.eof

Interface ERXKeyFilter.Delegate

Enclosing class:

ERXKeyFilter

public static interface ERXKeyFilter.Delegate

ERXKeyFilter.Delegate defines an interface for receiving notifications when your filter is applied to an object graph. This gives you the opportunity to do some validation and security checks for more complex scenarios.

Author:

mschrag

Method Summary

Modifier and Type	Method and Description
void	didSkipValueForKey(Object target, Object value, String key) Called after skipping a key.
void	didTakeValueForKey(Object target, Object value, String key) Called after pushing the given value into obj.key.
void	willTakeValueForKey(Object target, Object value, String key) Called prior to pushing the given value into obj.key.

Method Detail

willTakeValueForKey

void willTakeValueForKey(Object target,
                         Object value,
                         String key)
                  throws SecurityException

Called prior to pushing the given value into obj.key.

Parameters:

target - the target object

value - the value it will be set on

key - the key that will be set

Throws:

SecurityException - if you shouldn't be doing this

didTakeValueForKey

void didTakeValueForKey(Object target,
                        Object value,
                        String key)
                 throws SecurityException

Called after pushing the given value into obj.key. Most filters will be applied to EO's inside an editing context, and it may be more convenient to do security validation after the fact (before commit) than enforcing it in willTakeValue. This is your chance.

Parameters:

target - the target object

value - the value that was set

key - the key that was set

Throws:

SecurityException - if someone was naughty

didSkipValueForKey

void didSkipValueForKey(Object target,
                        Object value,
                        String key)
                 throws SecurityException

Called after skipping a key. You could choose to enforce more strict security and throw an exception in this case (rather than a silent skip default behavior).

Parameters:

target - the target object

value - the value that was skipped

key - the key that was skipped

Throws:

SecurityException - if someone was naughty