org.fastnate.generator.context

Class EntityClass<E>

java.lang.Object

org.fastnate.generator.context.EntityClass<E>

Type Parameters:

E - The described class

public final class EntityClass<E>
extends Object

Describes the DB relevant metadata of an entity class.

Author:

Tobias Liefke

Method Summary

Modifier and Type	Method and Description
List<EntityStatement>	createPostInsertStatements(E entity) Marks an entity as written and creates any pending update / insert statements.
String	getEntityReference(E entity, String idField, boolean whereExpression) Creates an expression that references the id of an entity of this class.
boolean	isNew(E entity) Indicates that the given entity needs to be written.
void	markExistingEntity(E entity) Marks a entity reference, where we don't know the ID in the database.
<V> void	markPendingUpdates(E pendingEntity, V entityToUpdate, Property<V,?> propertyToUpdate, Object... arguments) Marks an update that is necessary when an entity is written (in the future).
String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

createPostInsertStatements

public List<EntityStatement> createPostInsertStatements(E entity)

Marks an entity as written and creates any pending update / insert statements.

Parameters:

entity - the entity that exists now in the database

Returns:

all statements that have to be written now

getEntityReference

public String getEntityReference(E entity,
                                 String idField,
                                 boolean whereExpression)

Creates an expression that references the id of an entity of this class.

Parameters:

entity - the entity

idField - the field that contains the id, only interesting if the id is an EmbeddedProperty

whereExpression - indicates that the reference is used in a "where" statement

Returns:

the expression - either by using the unique properties or the id of the entity

isNew

public boolean isNew(E entity)

Indicates that the given entity needs to be written.

Parameters:

entity - the entity to check

Returns:

true if the entity was neither written, nor exists in the database

markExistingEntity

public void markExistingEntity(E entity)

Marks a entity reference, where we don't know the ID in the database.

Parameters:

entity - the entity to mark

markPendingUpdates

public <V> void markPendingUpdates(E pendingEntity,
                                   V entityToUpdate,
                                   Property<V,?> propertyToUpdate,
                                   Object... arguments)

Marks an update that is necessary when an entity is written (in the future).

Parameters:

pendingEntity - the entity that needs to be written, before the update can take place

entityToUpdate - the entity to update

propertyToUpdate - the property of the entity to update

arguments - additional arguments

toString

public String toString()

Overrides:

toString in class Object