org.eiichiro.acidhouse.metamodel

Class Metamodel<E>

java.lang.Object

org.eiichiro.acidhouse.metamodel.Metamodel<E>

public abstract class Metamodel<E>
extends Object

Metamodel represents the metamodel of Acid House entity.

Author:

Eiichiro Uchiumi

Constructor Summary

Constructors

Constructor and Description
Metamodel(Class<E> type) Constructs a new Metamodel instance with the specified entity type.
Metamodel(Metamodel<?> parent, Class<E> type, String name) Constructs a new Metamodel instance with the specified entity type, parent metamodel and metamodel name.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	hasChild() Returns true if this metamodel instance has a child metamodel.
boolean	isRoot() Returns this entity metamodel instance represents root entity or not.
String	name() Returns entity metamodel name.
Metamodel<?>	parent() Returns parent entity metamodel.
Metamodel<?>	root() Returns the root metmaodel of this metmaodel instance.
Class<E>	type() Returns the entity type this metamodel represents.

Methods inherited from class java.lang.Object

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

Constructor Detail

Metamodel

public Metamodel(Class<E> type)

Constructs a new Metamodel instance with the specified entity type. This constructor is called when the represented entity is the root entity (not owned child entity property).

Parameters:

type - The entity type.

Metamodel

public Metamodel(Metamodel<?> parent,
         Class<E> type,
         String name)

Constructs a new Metamodel instance with the specified entity type, parent metamodel and metamodel name. This constructor is called if the represented entity is declared as owned child entity property.

Parameters:

parent - The parent entity metamodel when this instance is declared as owned child entity property.

type - The entity type.

name - The metamodel name when this instance is declared as owned child entity property.

Method Detail

parent

public Metamodel<?> parent()

Returns parent entity metamodel. This method returns null, when this instance is declared as owned child entity property.

Returns:

The parent entity metamodel.

name

public String name()

Returns entity metamodel name. This method returns empty string, when this instance is declared as root entity.

Returns:

The entity metamodel name.

isRoot

public boolean isRoot()

Returns this entity metamodel instance represents root entity or not.

Returns:

This entity metamodel instance represents root entity or not.

hasChild

public boolean hasChild()

Returns true if this metamodel instance has a child metamodel.

Returns:

true if this metamodel instance has a child metamodel.

type

public Class<E> type()

Returns the entity type this metamodel represents.

Returns:

The entity type this metamodel represents.

root

public Metamodel<?> root()

Returns the root metmaodel of this metmaodel instance.

Returns:

The root metmaodel of this metmaodel instance.