org.sormula.active.operation

Class ActiveLazySelector<R extends ActiveRecord<? super R>>

java.lang.Object

org.sormula.active.operation.ActiveOperation<R,java.lang.Void>

org.sormula.active.operation.ActiveLazySelector<R>

Type Parameters:

R - record type

public class ActiveLazySelector<R extends ActiveRecord<? super R>>
extends ActiveOperation<R,java.lang.Void>

Performs lazy loading of active records. Used by ActiveRecord.checkLazySelects(String).

Since:

1.8 and 2.2

Author:

Jeff Miller

Constructor Summary

Constructors

Constructor and Description
ActiveLazySelector(ActiveTable<R> sourceActiveTable, R sourceActiveRecord, SelectCascadeAnnotationReader scar) Constructs for the source and annotation reader.

Method Summary

Modifier and Type	Method and Description
java.lang.Void	operate() Invoked by ActiveOperation.execute() to perform the operation.

Methods inherited from class org.sormula.active.operation.ActiveOperation

attach, attach, close, execute, getOperationDatabase, getTable, isLocalTransaction

Methods inherited from class java.lang.Object

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

Constructor Detail

ActiveLazySelector

public ActiveLazySelector(ActiveTable<R> sourceActiveTable,
                          R sourceActiveRecord,
                          SelectCascadeAnnotationReader scar)

Constructs for the source and annotation reader.

Parameters:

sourceActiveTable - parent table of 1-to-1 or 1-to-n relationship; active database is obtained from this table

sourceActiveRecord - parent record that gets modified with selected child(ren)

scar - annotation reader for field within parent that has lazy cascade defined

Method Detail

operate

public java.lang.Void operate()
                       throws java.lang.Exception

Description copied from class: ActiveOperation

Invoked by ActiveOperation.execute() to perform the operation. Subclasses must implement.

Specified by:

operate in class ActiveOperation<R extends ActiveRecord<? super R>,java.lang.Void>

Returns:

result of operation (Integer, List<R>, etc.)

Throws:

java.lang.Exception - if error