org.jsimpledb.change

Class ListFieldClear<T>

java.lang.Object

org.jsimpledb.change.Change<T>

org.jsimpledb.change.FieldChange<T>

org.jsimpledb.change.ListFieldChange<T>

org.jsimpledb.change.ListFieldClear<T>

Type Parameters:

T - the type of the object containing the changed field

public class ListFieldClear<T>
extends ListFieldChange<T>

Notification object that gets passed to @OnChange-annotated methods when a list field is cleared.

Constructor Summary

Constructors

Constructor and Description
ListFieldClear(T jobj, int storageId, String fieldName) Constructor.

Method Summary

Modifier and Type	Method and Description
void	apply(JTransaction jtx, JObject jobj) Apply this change to the given object in the given transaction.
String	toString()
<R> R	visit(ChangeSwitch<R> target) Apply visitor pattern.

Methods inherited from class org.jsimpledb.change.FieldChange

equals, getFieldName, getStorageId, hashCode

Methods inherited from class org.jsimpledb.change.Change

apply, apply, apply, getJObject, getObject

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ListFieldClear

public ListFieldClear(T jobj,
                      int storageId,
                      String fieldName)

Constructor.

Parameters:

jobj - Java object containing the list field that was cleared

storageId - the storage ID of the affected field

fieldName - the name of the field that changed

Throws:

IllegalArgumentException - if jobj or fieldName is null

Method Detail

visit

public <R> R visit(ChangeSwitch<R> target)

Description copied from class: Change

Apply visitor pattern. Invokes the method of target corresponding to this instance's type.

Specified by:

visit in class Change<T>

Type Parameters:

R - visitor return type

Parameters:

target - visitor pattern target

Returns:

value returned by the selected method of target

apply

public void apply(JTransaction jtx,
                  JObject jobj)

Description copied from class: Change

Apply this change to the given object in the given transaction.

Specified by:

apply in class Change<T>

Parameters:

jtx - the transaction in which to apply this change

jobj - the target object to which to apply this change

toString

public String toString()

Overrides:

toString in class Object