org.openlowcode.server.data.properties

Class LeftforlinkFlatFileLoader<E extends DataObject<E> & NumberedInterface<E> & UniqueidentifiedInterface<E>,F extends DataObject<F> & LinkobjectInterface<F,E,G>,G extends DataObject<G> & NumberedInterface<G> & UniqueidentifiedInterface<G>>

java.lang.Object

org.openlowcode.server.data.loader.FlatFileLoaderColumn<E>

org.openlowcode.server.data.properties.LeftforlinkFlatFileLoader<E,F,G>

Type Parameters:

E - current object (left for link)

F - data object holding the link

G - right data object for link

public class LeftforlinkFlatFileLoader<E extends DataObject<E> & NumberedInterface<E> & UniqueidentifiedInterface<E>,F extends DataObject<F> & LinkobjectInterface<F,E,G>,G extends DataObject<G> & NumberedInterface<G> & UniqueidentifiedInterface<G>>
extends FlatFileLoaderColumn<E>

A loader allowing to create links to right objects using the right object numbers. In the flat file, a series of numbers separated by '|' are entered in the flat file, and necessary links are created. If the corresponding option is set, missing links are also deleted

Author:

Open Lowcode SAS

Nested Class Summary

Nested classes/interfaces inherited from class org.openlowcode.server.data.loader.FlatFileLoaderColumn

FlatFileLoaderColumn.LinePreparation<E extends DataObject<E>>, FlatFileLoaderColumn.LinePreparationExtra<E extends DataObject<E>>

Constructor Summary

Constructors

Constructor and Description

LeftforlinkFlatFileLoader(DataObjectDefinition<E> leftobjectdefinition, DataObjectDefinition<F> linkobjectdefinition, DataObjectDefinition<G> rightobjectdefinition, LinkobjectDefinition<F,E,G> linkobjectpropertydef, NumberedDefinition<G> rightobjectnumberproperty, boolean createrightifnotexists, boolean deletemissinglink, java.lang.String hardcodedvalue, ConstraintOnLinkObject<E,G>[] constraints) creates the flat file loader to create links having as left object the object loaded in the left

Method Summary

Modifier and Type	Method and Description
java.lang.String	dependentColumnForPreparator() get dependent column for preparator
boolean	isStaticPreProcessing()
boolean	load(E object, java.lang.Object value, PostUpdateProcessingStore<E> postupdateprocessingstore) performs the load
boolean	processAfterLineInsertion() true if processing after line insertion
protected boolean	putContentInCell(E currentobject, org.apache.poi.ss.usermodel.Cell cell, java.lang.String context) A flat file loader should be able to extract from an object the value, and put it in a cell.
void	staticpreprocessor(java.lang.String next)

Methods inherited from class org.openlowcode.server.data.loader.FlatFileLoaderColumn

finalpostprocessing, generateLinePreparatorExtra, getValueRestriction, initComplexExtractorForObject, isComplexExtractor, isDiscarded, isLinePreparator, isLinePreparatorExtra, LinePreparation, postprocessLine, secondpass

Methods inherited from class java.lang.Object

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

Constructor Detail

LeftforlinkFlatFileLoader

public LeftforlinkFlatFileLoader(DataObjectDefinition<E> leftobjectdefinition,
                                 DataObjectDefinition<F> linkobjectdefinition,
                                 DataObjectDefinition<G> rightobjectdefinition,
                                 LinkobjectDefinition<F,E,G> linkobjectpropertydef,
                                 NumberedDefinition<G> rightobjectnumberproperty,
                                 boolean createrightifnotexists,
                                 boolean deletemissinglink,
                                 java.lang.String hardcodedvalue,
                                 ConstraintOnLinkObject<E,G>[] constraints)

creates the flat file loader to create links having as left object the object loaded in the left

Parameters:

leftobjectdefinition - definition of the main data object (left for link)

linkobjectdefinition - definiton of the data object that holds the link

rightobjectdefinition - definition of the right data object definition that holds the link

linkobjectpropertydef - definition of the link object property

rightobjectnumberproperty - the numbered property of the right object (loader can be used only if the right object is numbered)

createrightifnotexists - create the right object if it does not exists

deletemissinglink - if delete missing link is set, necessary links will be created so that the list of links is exactly the one in the file. If this option is not set, only missing links are created

hardcodedvalue - if set, if this column has any content, the hard coded value is used to load links

constraints - constraints on the link

Method Detail

isStaticPreProcessing

public boolean isStaticPreProcessing()

Overrides:

isStaticPreProcessing in class FlatFileLoaderColumn<E extends DataObject<E> & NumberedInterface<E> & UniqueidentifiedInterface<E>>

Returns:

dependentColumnForPreparator

public java.lang.String dependentColumnForPreparator()

get dependent column for preparator

Returns:

null value

staticpreprocessor

public void staticpreprocessor(java.lang.String next)

Overrides:

staticpreprocessor in class FlatFileLoaderColumn<E extends DataObject<E> & NumberedInterface<E> & UniqueidentifiedInterface<E>>

load

public boolean load(E object,
                    java.lang.Object value,
                    PostUpdateProcessingStore<E> postupdateprocessingstore)

Description copied from class: FlatFileLoaderColumn

performs the load

Specified by:

load in class FlatFileLoaderColumn<E extends DataObject<E> & NumberedInterface<E> & UniqueidentifiedInterface<E>>

Parameters:

object - the object on which to load data

value - an object, either Date, String or Double

postupdateprocessingstore - a store to perform post processing after the single update

Returns:

true if something was changed on the object, else, false

processAfterLineInsertion

public boolean processAfterLineInsertion()

Description copied from class: FlatFileLoaderColumn

true if processing after line insertion

Overrides:

processAfterLineInsertion in class FlatFileLoaderColumn<E extends DataObject<E> & NumberedInterface<E> & UniqueidentifiedInterface<E>>

Returns:

putContentInCell

protected boolean putContentInCell(E currentobject,
                                   org.apache.poi.ss.usermodel.Cell cell,
                                   java.lang.String context)

Description copied from class: FlatFileLoaderColumn

A flat file loader should be able to extract from an object the value, and put it in a cell.

Specified by:

putContentInCell in class FlatFileLoaderColumn<E extends DataObject<E> & NumberedInterface<E> & UniqueidentifiedInterface<E>>

Parameters:

currentobject - the object to analyze

cell - cell to put the data in

context - a context in case of multiple lines per same object

Returns:

true if specific style was applied, false if specific style was not applied