org.openlowcode.server.data.storage

Class Field<E>

java.lang.Object

org.openlowcode.tools.misc.Named

org.openlowcode.server.data.storage.Field<E>

Type Parameters:

E - the class of the payload

All Implemented Interfaces:

NamedInterface

Direct Known Subclasses:

ExternalField, StoredField

public abstract class Field<E>
extends Named

This class stored an actual value from the database.

Author:

Open Lowcode SAS

Field Summary

Fields

Modifier and Type	Field and Description
protected FieldSchema<E>	fieldschema
protected E	payload
protected E	referencepayload contains the last persisted value of the field before the current action.

Constructor Summary

Constructors

Constructor and Description
Field(FieldSchema<E> fieldschema) creates a new field for defined field schema

Method Summary

Modifier and Type	Method and Description
FieldSchema<E>	getFieldSchema()
E	getPayload()
void	setPayload(E payload) updates the payload compared to what is stored as a reference in the database persistent storage
void	setReferencePayload(E referencepayload) updates the payload and mentions this is the payload in the database persistent storage
boolean	updated() specifies if the value has been updated compared to reference payload stored in the persistent storage

Methods inherited from class org.openlowcode.tools.misc.Named

changeName, cleanName, equals, getName

Methods inherited from class java.lang.Object

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

Field Detail

fieldschema

protected FieldSchema<E> fieldschema

referencepayload

protected E referencepayload

contains the last persisted value of the field before the current action. During persistence, referencepayload is compared with payload to see if formulas and other triggers should be launched

payload

protected E payload

Constructor Detail

Field

public Field(FieldSchema<E> fieldschema)

creates a new field for defined field schema

Parameters:

fieldschema - the field schema to use for this field

Method Detail

getPayload

public E getPayload()

Returns:

the payload of the field

getFieldSchema

public FieldSchema<E> getFieldSchema()

Returns:

the field schema for this field

setPayload

public void setPayload(E payload)

updates the payload compared to what is stored as a reference in the database persistent storage

Parameters:

payload - new payload

setReferencePayload

public void setReferencePayload(E referencepayload)

updates the payload and mentions this is the payload in the database persistent storage

Parameters:

referencepayload -

updated

public boolean updated()

specifies if the value has been updated compared to reference payload stored in the persistent storage

Returns: