com.haulmont.cuba.gui.model

Class KeyValueInstanceLoader.PreLoadEvent

java.lang.Object

java.util.EventObject

com.haulmont.cuba.gui.model.KeyValueInstanceLoader.PreLoadEvent

All Implemented Interfaces:

java.io.Serializable

Enclosing interface:

KeyValueInstanceLoader

public static class KeyValueInstanceLoader.PreLoadEvent
extends java.util.EventObject

Event sent before loading a KeyValueEntity instance.

You can prevent load using the preventLoad() method of the event, for example:

     @Subscribe(id = "fooDl", target = Target.DATA_LOADER)
     private void onFooDlPreLoad(KeyValueInstanceLoader.PreLoadEvent event) {
         if (doNotLoad()) {
             event.preventLoad();
         }
     }
 

See Also:

KeyValueInstanceLoader.addPreLoadListener(Consumer), Serialized Form

Field Summary

Fields inherited from class java.util.EventObject

source

Constructor Summary

Constructors

Constructor and Description
PreLoadEvent(KeyValueInstanceLoader loader, ValueLoadContext loadContext)

Method Summary

Modifier and Type	Method and Description
ValueLoadContext	getLoadContext() Returns the load context of the current data loader.
KeyValueInstanceLoader	getSource() The data loader which sent the event.
boolean	isLoadPrevented() Returns true if preventLoad() method was called and loading will be aborted.
void	preventLoad() Invoke this method if you want to abort the loading.

Methods inherited from class java.util.EventObject

toString

Methods inherited from class java.lang.Object

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

Constructor Detail

PreLoadEvent

public PreLoadEvent(KeyValueInstanceLoader loader,
                    ValueLoadContext loadContext)

Method Detail

getSource

public KeyValueInstanceLoader getSource()

The data loader which sent the event.

Overrides:

getSource in class java.util.EventObject

getLoadContext

public ValueLoadContext getLoadContext()

Returns the load context of the current data loader.

preventLoad

public void preventLoad()

Invoke this method if you want to abort the loading.

isLoadPrevented

public boolean isLoadPrevented()

Returns true if preventLoad() method was called and loading will be aborted.