org.fastnate.generator.context

Class EmbeddedProperty<E,T>

java.lang.Object

org.fastnate.generator.context.Property<E,T>

org.fastnate.generator.context.EmbeddedProperty<E,T>

Type Parameters:

E - The type of the container class (the entity)

T - The type of the embeddable object

public class EmbeddedProperty<E,T>
extends Property<E,T>

Handling of properties defined in Embeddables.

Author:

Tobias Liefke

Constructor Summary

Constructors

Constructor and Description
EmbeddedProperty(EntityClass<?> entityClass, AttributeAccessor attribute) Instantiates a new embedded property.

Method Summary

Modifier and Type	Method and Description
void	addInsertExpression(E entity, InsertStatement statement) Adds an expression according to the current value of the property for the given entity to an SQL insert statement.
List<EntityStatement>	createPostInsertStatements(E entity) Creates additional SQL statements that are necessary after this property is written (e.g. for mapping tables) .
List<EntityStatement>	createPreInsertStatements(E entity) Creates SQL statements that are necessary before this property is written (e.g. for updating the table generator).
Collection<?>	findReferencedEntities(E entity) Finds all entities in the current property, that are referenced.
String	getPredicate(E entity) Creates an SQL predicate that references all entities that have the same value as the given entity.
boolean	isRequired() Indicates if this property is an required field in the database (needs to exist when the insert statement is written).
boolean	isTableColumn() Indicates that this property maps to a column from the parent table.

Methods inherited from class org.fastnate.generator.context.Property

failIfRequired, generatePendingStatements, getExpression, getName, getValue, setValue, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

EmbeddedProperty

public EmbeddedProperty(EntityClass<?> entityClass,
                        AttributeAccessor attribute)

Instantiates a new embedded property.

Parameters:

entityClass - the class of the entity

attribute - the attribute that contains the embedded object

Method Detail

addInsertExpression

public void addInsertExpression(E entity,
                                InsertStatement statement)

Description copied from class: Property

Adds an expression according to the current value of the property for the given entity to an SQL insert statement.

Overrides:

addInsertExpression in class Property<E,T>

Parameters:

entity - the inspected entity

statement - the created statement

createPostInsertStatements

public List<EntityStatement> createPostInsertStatements(E entity)

Description copied from class: Property

Creates additional SQL statements that are necessary after this property is written (e.g. for mapping tables) .

Overrides:

createPostInsertStatements in class Property<E,T>

Parameters:

entity - the inspected entity

Returns:

the list of addition insert statements

createPreInsertStatements

public List<EntityStatement> createPreInsertStatements(E entity)

Description copied from class: Property

Creates SQL statements that are necessary before this property is written (e.g. for updating the table generator).

Overrides:

createPreInsertStatements in class Property<E,T>

Parameters:

entity - the inspected entity

Returns:

the list of addition statements

findReferencedEntities

public Collection<?> findReferencedEntities(E entity)

Description copied from class: Property

Finds all entities in the current property, that are referenced.

Overrides:

findReferencedEntities in class Property<E,T>

Parameters:

entity - the inspected entity

Returns:

all referenced entities

getPredicate

public String getPredicate(E entity)

Description copied from class: Property

Creates an SQL predicate that references all entities that have the same value as the given entity. Used to reference entites by their (unique) properties or ids.

Overrides:

getPredicate in class Property<E,T>

Parameters:

entity - the entity

Returns:

the predicate for the value of that entity or null if no such expression is available

isRequired

public boolean isRequired()

Description copied from class: Property

Indicates if this property is an required field in the database (needs to exist when the insert statement is written).

Overrides:

isRequired in class Property<E,T>

Returns:

true if the field is required

isTableColumn

public boolean isTableColumn()

Description copied from class: Property

Indicates that this property maps to a column from the parent table.

Specified by:

isTableColumn in class Property<E,T>

Returns:

true if Property.addInsertExpression(Object, InsertStatement) will add the corresponding value to the given statement