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AbstractEntityTuplizer (Hibernate API Documentation) - Hibernate 3.2.4 正式版 API 英文文档

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org.hibernate.tuple.entity
Class AbstractEntityTuplizer

java.lang.Object
  org.hibernate.tuple.entity.AbstractEntityTuplizer

All Implemented Interfaces:

EntityTuplizer, Tuplizer

Direct Known Subclasses:

Dom4jEntityTuplizer, DynamicMapEntityTuplizer, PojoEntityTuplizer

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public abstract class AbstractEntityTuplizer

extends Object

implements EntityTuplizer

Support for tuplizers relating to entities.

Author:

Steve Ebersole, Gavin King

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Field Summary
protected  Getter[]	getters
protected  boolean	hasCustomAccessors
protected  int	propertySpan
protected  Setter[]	setters

 

Constructor Summary

AbstractEntityTuplizer(EntityMetamodel entityMetamodel, PersistentClass mappingInfo)           Constructs a new AbstractEntityTuplizer instance.

 

Method Summary
void	afterInitialize(Object entity, boolean lazyPropertiesAreUnfetched, SessionImplementor session)           Called just after the entities properties have been initialized.
protected abstract  Instantiator	buildInstantiator(PersistentClass mappingInfo)           Build an appropriate Instantiator for the given mapped entity.
protected abstract  Getter	buildPropertyGetter(Property mappedProperty, PersistentClass mappedEntity)           Build an appropriate Getter for the given property.
protected abstract  Setter	buildPropertySetter(Property mappedProperty, PersistentClass mappedEntity)           Build an appropriate Setter for the given property.
protected abstract  ProxyFactory	buildProxyFactory(PersistentClass mappingInfo, Getter idGetter, Setter idSetter)           Build an appropriate ProxyFactory for the given mapped entity.
Object	createProxy(Serializable id, SessionImplementor session)           Generates an appropriate proxy representation of this entity for this entity-mode.
protected  Object	getComponentValue(ComponentType type, Object component, String propertyPath)           Extract a component property value.
protected  EntityMetamodel	getEntityMetamodel()
protected abstract  EntityMode	getEntityMode()           Return the entity-mode handled by this tuplizer instance.
protected  String	getEntityName()           Retreives the defined entity-name for the tuplized entity.
protected  SessionFactoryImplementor	getFactory()
Serializable	getIdentifier(Object entity)           Extract the identifier value from the given entity.
protected  Instantiator	getInstantiator()
Object	getPropertyValue(Object entity, int i)           Extract the value of a particular property from the given entity.
Object	getPropertyValue(Object entity, String propertyPath)           Extract the value of a particular property from the given entity.
Object[]	getPropertyValues(Object entity)           Extract the current values contained on the given entity.
Object[]	getPropertyValuesToInsert(Object entity, Map mergeMap, SessionImplementor session)           Extract the values of the insertable properties of the entity (including backrefs)
protected  ProxyFactory	getProxyFactory()
protected  Set	getSubclassEntityNames()           Retreives the defined entity-names for any subclasses defined for this entity.
Object	getVersion(Object entity)           Extract the value of the version property from the given entity.
boolean	hasProxy()           Does this entity, for this mode, present a possibility for proxying?
boolean	hasUninitializedLazyProperties(Object entity)           Does the given entity instance have any currently uninitialized lazy properties?
Object	instantiate()           Generate a new, empty entity.
Object	instantiate(Serializable id)           Create an entity instance initialized with the given identifier.
boolean	isInstance(Object object)           Is the given object considered an instance of the the entity (acconting for entity-mode) managed by this tuplizer.
boolean	isLifecycleImplementor()           Does the class managed by this tuplizer implement the Lifecycle interface.
boolean	isValidatableImplementor()           Does the class managed by this tuplizer implement the Validatable interface.
void	resetIdentifier(Object entity, Serializable currentId, Object currentVersion)           Inject the given identifier and version into the entity, in order to "roll back" to their original values.
void	setIdentifier(Object entity, Serializable id)           Inject the identifier value into the given entity.
void	setPropertyValue(Object entity, int i, Object value)           Inject the value of a particular property.
void	setPropertyValue(Object entity, String propertyName, Object value)           Inject the value of a particular property.
void	setPropertyValues(Object entity, Object[] values)           Inject the given values into the given entity.
protected  boolean	shouldGetAllProperties(Object entity)
String	toString()

 

Methods inherited from class java.lang.Object

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

 

Methods inherited from interface org.hibernate.tuple.entity.EntityTuplizer

getConcreteProxyClass, isInstrumented

 

Methods inherited from interface org.hibernate.tuple.Tuplizer

getMappedClass

 

Field Detail

getters

protected final Getter[] getters

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setters

protected final Setter[] setters

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propertySpan

protected final int propertySpan

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hasCustomAccessors

protected final boolean hasCustomAccessors

Constructor Detail

AbstractEntityTuplizer

public AbstractEntityTuplizer(EntityMetamodel entityMetamodel,
                              PersistentClass mappingInfo)

Constructs a new AbstractEntityTuplizer instance.

Parameters:

entityMetamodel - The "interpreted" information relating to the mapped entity.

mappingInfo - The parsed "raw" mapping data relating to the given entity.

Method Detail

getEntityMode

protected abstract EntityMode getEntityMode()

Return the entity-mode handled by this tuplizer instance.

Returns:

The entity-mode

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buildPropertyGetter

protected abstract Getter buildPropertyGetter(Property mappedProperty,
                                              PersistentClass mappedEntity)

Build an appropriate Getter for the given property.

Parameters:

mappedProperty - The property to be accessed via the built Getter.

mappedEntity - The entity information regarding the mapped entity owning this property.

Returns:

An appropriate Getter instance.

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buildPropertySetter

protected abstract Setter buildPropertySetter(Property mappedProperty,
                                              PersistentClass mappedEntity)

Build an appropriate Setter for the given property.

Parameters:

mappedProperty - The property to be accessed via the built Setter.

mappedEntity - The entity information regarding the mapped entity owning this property.

Returns:

An appropriate Setter instance.

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buildInstantiator

protected abstract Instantiator buildInstantiator(PersistentClass mappingInfo)

Build an appropriate Instantiator for the given mapped entity.

Parameters:

mappingInfo - The mapping information regarding the mapped entity.

Returns:

An appropriate Instantiator instance.

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buildProxyFactory

protected abstract ProxyFactory buildProxyFactory(PersistentClass mappingInfo,
                                                  Getter idGetter,
                                                  Setter idSetter)

Build an appropriate ProxyFactory for the given mapped entity.

Parameters:

mappingInfo - The mapping information regarding the mapped entity.

idGetter - The constructed Getter relating to the entity's id property.

idSetter - The constructed Setter relating to the entity's id property.

Returns:

An appropriate ProxyFactory instance.

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getEntityName

protected String getEntityName()

Retreives the defined entity-name for the tuplized entity.

Returns:

The entity-name.

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getSubclassEntityNames

protected Set getSubclassEntityNames()

Retreives the defined entity-names for any subclasses defined for this entity.

Returns:

Any subclass entity-names.

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getIdentifier

public Serializable getIdentifier(Object entity)
                           throws HibernateException

Description copied from interface: EntityTuplizer

Extract the identifier value from the given entity.

Specified by:

getIdentifier in interface EntityTuplizer

Parameters:

entity - The entity from which to extract the identifier value.

Returns:

The identifier value.

Throws:

HibernateException - If the entity does not define an identifier property, or an error occurrs accessing its value.

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setIdentifier

public void setIdentifier(Object entity,
                          Serializable id)
                   throws HibernateException

Description copied from interface: EntityTuplizer

Inject the identifier value into the given entity.

Has no effect if the entity does not define an identifier property

Specified by:

setIdentifier in interface EntityTuplizer

Parameters:

entity - The entity to inject with the identifier value.

id - The value to be injected as the identifier.

Throws:

HibernateException

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resetIdentifier

public void resetIdentifier(Object entity,
                            Serializable currentId,
                            Object currentVersion)

Description copied from interface: EntityTuplizer

Inject the given identifier and version into the entity, in order to "roll back" to their original values.

Specified by:

resetIdentifier in interface EntityTuplizer

Parameters:

currentId - The identifier value to inject into the entity.

currentVersion - The version value to inject into the entity.

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getVersion

public Object getVersion(Object entity)
                  throws HibernateException

Description copied from interface: EntityTuplizer

Extract the value of the version property from the given entity.

Specified by:

getVersion in interface EntityTuplizer

Parameters:

entity - The entity from which to extract the version value.

Returns:

The value of the version property, or null if not versioned.

Throws:

HibernateException

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shouldGetAllProperties

protected boolean shouldGetAllProperties(Object entity)

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getPropertyValues

public Object[] getPropertyValues(Object entity)
                           throws HibernateException

Description copied from interface: Tuplizer

Extract the current values contained on the given entity.

Specified by:

getPropertyValues in interface Tuplizer

Parameters:

entity - The entity from which to extract values.

Returns:

The current property values.

Throws:

HibernateException

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getPropertyValuesToInsert

public Object[] getPropertyValuesToInsert(Object entity,
                                          Map mergeMap,
                                          SessionImplementor session)
                                   throws HibernateException

Description copied from interface: EntityTuplizer

Extract the values of the insertable properties of the entity (including backrefs)

Specified by:

getPropertyValuesToInsert in interface EntityTuplizer

Parameters:

entity - The entity from which to extract.

mergeMap - a map of instances being merged to merged instances

session - The session in which the resuest is being made.

Returns:

The insertable property values.

Throws:

HibernateException

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getPropertyValue

public Object getPropertyValue(Object entity,
                               int i)
                        throws HibernateException

Description copied from interface: Tuplizer

Extract the value of a particular property from the given entity.

Specified by:

getPropertyValue in interface Tuplizer

Parameters:

entity - The entity from which to extract the property value.

i - The index of the property for which to extract the value.

Returns:

The current value of the given property on the given entity.

Throws:

HibernateException

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getPropertyValue

public Object getPropertyValue(Object entity,
                               String propertyPath)
                        throws HibernateException

Description copied from interface: EntityTuplizer

Extract the value of a particular property from the given entity.

Specified by:

getPropertyValue in interface EntityTuplizer

Parameters:

entity - The entity from which to extract the property value.

propertyPath - The name of the property for which to extract the value.

Returns:

The current value of the given property on the given entity.

Throws:

HibernateException

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getComponentValue

protected Object getComponentValue(ComponentType type,
                                   Object component,
                                   String propertyPath)

Extract a component property value.

Parameters:

type - The component property types.

component - The component instance itself.

propertyPath - The property path for the property to be extracted.

Returns:

The property value extracted.

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setPropertyValues

public void setPropertyValues(Object entity,
                              Object[] values)
                       throws HibernateException

Description copied from interface: Tuplizer

Inject the given values into the given entity.

Specified by:

setPropertyValues in interface Tuplizer

Parameters:

entity - The entity.

values - The values to be injected.

Throws:

HibernateException

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setPropertyValue

public void setPropertyValue(Object entity,
                             int i,
                             Object value)
                      throws HibernateException

Description copied from interface: EntityTuplizer

Inject the value of a particular property.

Specified by:

setPropertyValue in interface EntityTuplizer

Parameters:

entity - The entity into which to inject the value.

i - The property's index.

value - The property value to inject.

Throws:

HibernateException

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setPropertyValue

public void setPropertyValue(Object entity,
                             String propertyName,
                             Object value)
                      throws HibernateException

Description copied from interface: EntityTuplizer

Inject the value of a particular property.

Specified by:

setPropertyValue in interface EntityTuplizer

Parameters:

entity - The entity into which to inject the value.

propertyName - The name of the property.

value - The property value to inject.

Throws:

HibernateException

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instantiate

public final Object instantiate(Serializable id)
                         throws HibernateException

Description copied from interface: EntityTuplizer

Create an entity instance initialized with the given identifier.

Specified by:

instantiate in interface EntityTuplizer

Parameters:

id - The identifier value for the entity to be instantiated.

Returns:

The instantiated entity.

Throws:

HibernateException

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instantiate

public final Object instantiate()
                         throws HibernateException

Description copied from interface: Tuplizer

Generate a new, empty entity.

Specified by:

instantiate in interface Tuplizer

Returns:

The new, empty entity instance.

Throws:

HibernateException

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afterInitialize

public void afterInitialize(Object entity,
                            boolean lazyPropertiesAreUnfetched,
                            SessionImplementor session)

Description copied from interface: EntityTuplizer

Called just after the entities properties have been initialized.

Specified by:

afterInitialize in interface EntityTuplizer

Parameters:

entity - The entity being initialized.

lazyPropertiesAreUnfetched - Are defined lazy properties currently unfecthed

session - The session initializing this entity.

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hasUninitializedLazyProperties

public boolean hasUninitializedLazyProperties(Object entity)

Description copied from interface: EntityTuplizer

Does the given entity instance have any currently uninitialized lazy properties?

Specified by:

hasUninitializedLazyProperties in interface EntityTuplizer

Parameters:

entity - The entity to be check for uninitialized lazy properties.

Returns:

True if uninitialized lazy properties were found; false otherwise.

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isInstance

public final boolean isInstance(Object object)

Description copied from interface: Tuplizer

Is the given object considered an instance of the the entity (acconting for entity-mode) managed by this tuplizer.

Specified by:

isInstance in interface Tuplizer

Parameters:

object - The object to be checked.

Returns:

True if the object is considered as an instance of this entity within the given mode.

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hasProxy

public boolean hasProxy()

Description copied from interface: EntityTuplizer

Does this entity, for this mode, present a possibility for proxying?

Specified by:

hasProxy in interface EntityTuplizer

Returns:

True if this tuplizer can generate proxies for this entity.

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createProxy

public final Object createProxy(Serializable id,
                                SessionImplementor session)
                         throws HibernateException

Description copied from interface: EntityTuplizer

Generates an appropriate proxy representation of this entity for this entity-mode.

Specified by:

createProxy in interface EntityTuplizer

Parameters:

id - The id of the instance for which to generate a proxy.

session - The session to which the proxy should be bound.

Returns:

The generate proxies.

Throws:

HibernateException - Indicates an error generating the proxy.

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isLifecycleImplementor

public boolean isLifecycleImplementor()

Description copied from interface: EntityTuplizer

Does the class managed by this tuplizer implement the Lifecycle interface.

Specified by:

isLifecycleImplementor in interface EntityTuplizer

Returns:

True if the Lifecycle interface is implemented; false otherwise.

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isValidatableImplementor

public boolean isValidatableImplementor()

Description copied from interface: EntityTuplizer

Does the class managed by this tuplizer implement the Validatable interface.

Specified by:

isValidatableImplementor in interface EntityTuplizer

Returns:

True if the Validatable interface is implemented; false otherwise.

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getEntityMetamodel

protected final EntityMetamodel getEntityMetamodel()

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getFactory

protected final SessionFactoryImplementor getFactory()

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getInstantiator

protected final Instantiator getInstantiator()

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getProxyFactory

protected final ProxyFactory getProxyFactory()

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toString

public String toString()

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