org.apache.openjpa.persistence.meta
Class AbstractManagedType<X>

java.lang.Object
  org.apache.openjpa.persistence.meta.AbstractManagedType<X>

Type Parameters:

X - the

All Implemented Interfaces:

ManagedType<X>, Type<X>

Direct Known Subclasses:

Types.Embeddable, Types.Identifiable, Types.PseudoEntity

public abstract class AbstractManagedType<X>
extends Object
implements ManagedType<X>

Implements the managed persistent type and its attributes. Provides identity and version attribute facilities for Identifiable type but does not implement it.

Author:

Pinaki Poddar

Nested Class Summary

static class	AbstractManagedType.AttributeNameFilter<X>
static class	AbstractManagedType.AttributeTypeFilter<X,Y> Selects if the attribute type matches the given Java class.
static class	AbstractManagedType.DeclaredAttributeFilter<X>
static class	AbstractManagedType.ElementTypeFilter<X,E> Selects plural attribute of given element type.
static class	AbstractManagedType.EntryTypeFilter<X,K,V>
static interface	AbstractManagedType.Filter<T> Affirms if a given element satisfy a condition.
static class	AbstractManagedType.IdAttributeFilter<X>
static class	AbstractManagedType.PluralCategoryFilter<X>
static class	AbstractManagedType.SingularAttributeFilter<X> Affirms if the given attribute is a Singular attribute.
static class	AbstractManagedType.VersionAttributeFilter<X>

Nested classes/interfaces inherited from interface javax.persistence.metamodel.Type

Type.PersistenceType

Field Summary

Class<X>	cls
ClassMetaData	meta
MetamodelImpl	model

Constructor Summary

protected	AbstractManagedType(Class<X> cls, MetamodelImpl model) A protected constructor for creating psudo-managed types.
	AbstractManagedType(ClassMetaData meta, MetamodelImpl model) Construct a managed type.

Method Summary

static <T,C extends Collection<E>,E> C	filter(Collection<T> original, C result, AbstractManagedType.Filter<T> f1, AbstractManagedType.Filter<T> f2, AbstractManagedType.Filter<T> f3, AbstractManagedType.Filter<T> f4) Applies chain of filters ANDed on the given collection to populate the given result.
Attribute<? super X,?>	getAttribute(String name) Returns the attribute of the given name of any type.
<Y> Attribute<? super X,Y>	getAttribute(String name, Class<Y> type) Returns the attribute of the given name and Java type.
Set<Attribute<? super X,?>>	getAttributes() Returns all the attributes of the managed type including attributes of the super type.
CollectionAttribute<? super X,?>	getCollection(String name) Returns the attribute of the given name and of type java.util.Collection.
<E> CollectionAttribute<? super X,E>	getCollection(String name, Class<E> elementType) Returns the attribute of the given name, of type java.util.Collection and contains the given element type.
Attribute<X,?>	getDeclaredAttribute(String name) Returns the declared attribute of the given name of any type.
<Y> Attribute<X,Y>	getDeclaredAttribute(String name, Class<Y> type) Returns the declared attribute of the given name and Java type.
Set<Attribute<X,?>>	getDeclaredAttributes() Returns all the attributes declared by this managed type only.
CollectionAttribute<X,?>	getDeclaredCollection(String name) Returns the declared attribute of the given name and of type java.util.Collection.
<E> CollectionAttribute<X,E>	getDeclaredCollection(String name, Class<E> elementType) Returns the declared attribute of the given name, of type java.util.Collection and contains the given element type.
<Y> SingularAttribute<X,Y>	getDeclaredId(Class<Y> type) Returns the declared attribute of given type that corresponds to the id attribute of this identifiable managed type.
ListAttribute<X,?>	getDeclaredList(String name) Returns the declared attribute of the given name and of type java.util.List.
<E> ListAttribute<X,E>	getDeclaredList(String name, Class<E> elementType) Returns the declared attribute of the given name, of type java.util.List and contains the given element type.
MapAttribute<X,?,?>	getDeclaredMap(String name) Returns the declared attribute of the given name and of type java.util.Map.
<K,V> MapAttribute<X,K,V>	getDeclaredMap(String name, Class<K> keyType, Class<V> valueType) Returns the declared attribute of the given name, of type java.util.Map and contains the given key/value type.
Set<PluralAttribute<X,?,?>>	getDeclaredPluralAttributes() Return all collection-valued attributes declared by the managed type.
SetAttribute<X,?>	getDeclaredSet(String name) Returns the declared attribute of the given name and of type java.util.Set.
<E> SetAttribute<X,E>	getDeclaredSet(String name, Class<E> elementType) Returns the declared attribute of the given name, of type java.util.Set and contains the given element type.
SingularAttribute<X,?>	getDeclaredSingularAttribute(String name) Returns the declared, single-valued attribute of the given name of any type.
<Y> SingularAttribute<X,Y>	getDeclaredSingularAttribute(String name, Class<Y> type) Returns the declared single-valued attribute of the given name and Java type.
Set<SingularAttribute<X,?>>	getDeclaredSingularAttributes() Returns the single-valued attributes declared by the managed type.
<Y> SingularAttribute<X,Y>	getDeclaredVersion(Class<Y> type) Returns the declared attribute of given type that corresponds to the version attribute of this managed type.
<Y> SingularAttribute<? super X,Y>	getId(Class<Y> type) Returns the attribute of given type that corresponds to the id attribute of this identifiable managed type.
Set<SingularAttribute<? super X,?>>	getIdClassAttributes() Returns the attributes corresponding to the id class of the identifiable type.
Class<X>	getJavaType()
ListAttribute<? super X,?>	getList(String name) Returns the attribute of the given name and of type java.util.List.
<E> ListAttribute<? super X,E>	getList(String name, Class<E> elementType) Returns the attribute of the given name, of type java.util.List and contains the given element type.
MapAttribute<? super X,?,?>	getMap(String name) Returns the attribute of the given name and of type java.util.Map.
<K,V> MapAttribute<? super X,K,V>	getMap(String name, Class<K> keyType, Class<V> valueType) Returns the attribute of the given name, of type java.util.Map and contains the given key/value type.
Set<PluralAttribute<? super X,?,?>>	getPluralAttributes() Returns all collection-valued attributes of the managed type.
SetAttribute<? super X,?>	getSet(String name) Returns the attribute of the given name and of type java.util.Set.
<E> SetAttribute<? super X,E>	getSet(String name, Class<E> elementType) Returns the attribute of the given name, of type java.util.Set and contains the given element type.
SingularAttribute<? super X,?>	getSingularAttribute(String name) Returns the single-valued attribute of the given name of any type.
<Y> SingularAttribute<? super X,Y>	getSingularAttribute(String name, Class<Y> type) Returns the single-valued attribute of the given name and Java type.
Set<SingularAttribute<? super X,?>>	getSingularAttributes() Returns the single-valued attributes of the managed type.
<Y> SingularAttribute<? super X,Y>	getVersion(Class<Y> type) Returns the attribute of given type that corresponds to the version attribute of this managed type.
static <T> T	pick(Collection<T> original, AbstractManagedType.Filter<T> f1, AbstractManagedType.Filter<T> f2, AbstractManagedType.Filter<T> f3, AbstractManagedType.Filter<T> f4) Applies chain of filters ANDed on the given collection to pick a single element.
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.persistence.metamodel.Type

getJavaType, getPersistenceType

Field Detail

model

public final MetamodelImpl model

meta

public final ClassMetaData meta

cls

public final Class<X> cls

Constructor Detail

AbstractManagedType

protected AbstractManagedType(Class<X> cls,
                              MetamodelImpl model)

A protected constructor for creating psudo-managed types.

AbstractManagedType

public AbstractManagedType(ClassMetaData meta,
                           MetamodelImpl model)

Construct a managed type. The supplied metadata must be resolved i.e. all its fields populated. Because this receiver will populate its attributes corresponding to the available fields of the metadata.

Method Detail

getAttributes

public Set<Attribute<? super X,?>> getAttributes()

Returns all the attributes of the managed type including attributes of the super type.

Specified by:

getAttributes in interface ManagedType<X>

getDeclaredAttributes

public Set<Attribute<X,?>> getDeclaredAttributes()

Returns all the attributes declared by this managed type only.

Specified by:

getDeclaredAttributes in interface ManagedType<X>

getSingularAttributes

public Set<SingularAttribute<? super X,?>> getSingularAttributes()

Returns the single-valued attributes of the managed type.

Specified by:

getSingularAttributes in interface ManagedType<X>

getDeclaredSingularAttributes

public Set<SingularAttribute<X,?>> getDeclaredSingularAttributes()

Returns the single-valued attributes declared by the managed type.

Specified by:

getDeclaredSingularAttributes in interface ManagedType<X>

getAttribute

public <Y> Attribute<? super X,Y> getAttribute(String name,
                                               Class<Y> type)

Returns the attribute of the given name and Java type.

Throws:

IllegalArgumentException - if no such attribute exists

getSingularAttribute

public <Y> SingularAttribute<? super X,Y> getSingularAttribute(String name,
                                                               Class<Y> type)

Returns the single-valued attribute of the given name and Java type.

Specified by:

getSingularAttribute in interface ManagedType<X>

Throws:

IllegalArgumentException - if no such attribute exists

getDeclaredAttribute

public <Y> Attribute<X,Y> getDeclaredAttribute(String name,
                                               Class<Y> type)

Returns the declared attribute of the given name and Java type.

Throws:

IllegalArgumentException - if no such attribute exists

getDeclaredSingularAttribute

public <Y> SingularAttribute<X,Y> getDeclaredSingularAttribute(String name,
                                                               Class<Y> type)

Returns the declared single-valued attribute of the given name and Java type.

Specified by:

getDeclaredSingularAttribute in interface ManagedType<X>

Throws:

IllegalArgumentException - if no such attribute exists

getPluralAttributes

public Set<PluralAttribute<? super X,?,?>> getPluralAttributes()

Returns all collection-valued attributes of the managed type.

Specified by:

getPluralAttributes in interface ManagedType<X>

getDeclaredPluralAttributes

public Set<PluralAttribute<X,?,?>> getDeclaredPluralAttributes()

Return all collection-valued attributes declared by the managed type.

Specified by:

getDeclaredPluralAttributes in interface ManagedType<X>

getCollection

public <E> CollectionAttribute<? super X,E> getCollection(String name,
                                                          Class<E> elementType)

Returns the attribute of the given name, of type java.util.Collection and contains the given element type.

Specified by:

getCollection in interface ManagedType<X>

Throws:

IllegalArgumentException - if no such attribute exists

getSet

public <E> SetAttribute<? super X,E> getSet(String name,
                                            Class<E> elementType)

Returns the attribute of the given name, of type java.util.Set and contains the given element type.

Specified by:

getSet in interface ManagedType<X>

Throws:

IllegalArgumentException - if no such attribute exists

getList

public <E> ListAttribute<? super X,E> getList(String name,
                                              Class<E> elementType)

Returns the attribute of the given name, of type java.util.List and contains the given element type.

Specified by:

getList in interface ManagedType<X>

Throws:

IllegalArgumentException - if no such attribute exists

getMap

public <K,V> MapAttribute<? super X,K,V> getMap(String name,
                                                Class<K> keyType,
                                                Class<V> valueType)

Returns the attribute of the given name, of type java.util.Map and contains the given key/value type.

Specified by:

getMap in interface ManagedType<X>

Throws:

IllegalArgumentException - if no such attribute exists

getDeclaredCollection

public <E> CollectionAttribute<X,E> getDeclaredCollection(String name,
                                                          Class<E> elementType)

Returns the declared attribute of the given name, of type java.util.Collection and contains the given element type.

Specified by:

getDeclaredCollection in interface ManagedType<X>

Throws:

IllegalArgumentException - if no such attribute exists

getDeclaredSet

public <E> SetAttribute<X,E> getDeclaredSet(String name,
                                            Class<E> elementType)

Returns the declared attribute of the given name, of type java.util.Set and contains the given element type.

Specified by:

getDeclaredSet in interface ManagedType<X>

Throws:

IllegalArgumentException - if no such attribute exists

getDeclaredList

public <E> ListAttribute<X,E> getDeclaredList(String name,
                                              Class<E> elementType)

Returns the declared attribute of the given name, of type java.util.List and contains the given element type.

Specified by:

getDeclaredList in interface ManagedType<X>

Throws:

IllegalArgumentException - if no such attribute exists

getDeclaredMap

public <K,V> MapAttribute<X,K,V> getDeclaredMap(String name,
                                                Class<K> keyType,
                                                Class<V> valueType)

Returns the declared attribute of the given name, of type java.util.Map and contains the given key/value type.

Specified by:

getDeclaredMap in interface ManagedType<X>

Throws:

IllegalArgumentException - if no such attribute exists

getAttribute

public Attribute<? super X,?> getAttribute(String name)

Returns the attribute of the given name of any type.

Specified by:

getAttribute in interface ManagedType<X>

Throws:

IllegalArgumentException - if no such attribute exists

getDeclaredAttribute

public Attribute<X,?> getDeclaredAttribute(String name)

Returns the declared attribute of the given name of any type.

Specified by:

getDeclaredAttribute in interface ManagedType<X>

Throws:

IllegalArgumentException - if no such attribute exists

getSingularAttribute

public SingularAttribute<? super X,?> getSingularAttribute(String name)

Returns the single-valued attribute of the given name of any type.

Specified by:

getSingularAttribute in interface ManagedType<X>

Throws:

IllegalArgumentException - if no such attribute exists

getDeclaredSingularAttribute

public SingularAttribute<X,?> getDeclaredSingularAttribute(String name)

Returns the declared, single-valued attribute of the given name of any type.

Specified by:

getDeclaredSingularAttribute in interface ManagedType<X>

Throws:

IllegalArgumentException - if no such attribute exists

getCollection

public CollectionAttribute<? super X,?> getCollection(String name)

Returns the attribute of the given name and of type java.util.Collection.

Specified by:

getCollection in interface ManagedType<X>

Throws:

IllegalArgumentException - if no such attribute exists

getSet

public SetAttribute<? super X,?> getSet(String name)

Returns the attribute of the given name and of type java.util.Set.

Specified by:

getSet in interface ManagedType<X>

Throws:

IllegalArgumentException - if no such attribute exists

getList

public ListAttribute<? super X,?> getList(String name)

Returns the attribute of the given name and of type java.util.List.

Specified by:

getList in interface ManagedType<X>

Throws:

IllegalArgumentException - if no such attribute exists

getMap

public MapAttribute<? super X,?,?> getMap(String name)

Returns the attribute of the given name and of type java.util.Map.

Specified by:

getMap in interface ManagedType<X>

Throws:

IllegalArgumentException - if no such attribute exists

getDeclaredCollection

public CollectionAttribute<X,?> getDeclaredCollection(String name)

Returns the declared attribute of the given name and of type java.util.Collection.

Specified by:

getDeclaredCollection in interface ManagedType<X>

Throws:

IllegalArgumentException - if no such attribute exists

getDeclaredSet

public SetAttribute<X,?> getDeclaredSet(String name)

Returns the declared attribute of the given name and of type java.util.Set.

Specified by:

getDeclaredSet in interface ManagedType<X>

Throws:

IllegalArgumentException - if no such attribute exists

getDeclaredList

public ListAttribute<X,?> getDeclaredList(String name)

Returns the declared attribute of the given name and of type java.util.List.

Specified by:

getDeclaredList in interface ManagedType<X>

Throws:

IllegalArgumentException - if no such attribute exists

getDeclaredMap

public MapAttribute<X,?,?> getDeclaredMap(String name)

Returns the declared attribute of the given name and of type java.util.Map.

Specified by:

getDeclaredMap in interface ManagedType<X>

Throws:

IllegalArgumentException - if no such attribute exists

getIdClassAttributes

public final Set<SingularAttribute<? super X,?>> getIdClassAttributes()

Returns the attributes corresponding to the id class of the identifiable type.

Throws:

IllegalArgumentException - if the this type is not using an id class

getId

public final <Y> SingularAttribute<? super X,Y> getId(Class<Y> type)

Returns the attribute of given type that corresponds to the id attribute of this identifiable managed type.

Throws:

IllegalArgumentException - if no such attribute exists

getDeclaredId

public final <Y> SingularAttribute<X,Y> getDeclaredId(Class<Y> type)

Returns the declared attribute of given type that corresponds to the id attribute of this identifiable managed type.

Throws:

IllegalArgumentException - if no such attribute exists

getVersion

public <Y> SingularAttribute<? super X,Y> getVersion(Class<Y> type)

Returns the attribute of given type that corresponds to the version attribute of this managed type.

Throws:

IllegalArgumentException - if no such attribute exists

getDeclaredVersion

public <Y> SingularAttribute<X,Y> getDeclaredVersion(Class<Y> type)

Returns the declared attribute of given type that corresponds to the version attribute of this managed type.

Throws:

IllegalArgumentException - if no such attribute exists

filter

public static <T,C extends Collection<E>,E> C filter(Collection<T> original,
                                                     C result,
                                                     AbstractManagedType.Filter<T> f1,
                                                     AbstractManagedType.Filter<T> f2,
                                                     AbstractManagedType.Filter<T> f3,
                                                     AbstractManagedType.Filter<T> f4)

Applies chain of filters ANDed on the given collection to populate the given result. A null filter evaluates always TRUE. The arguments are not passed as variable argument list to suppress warnings in in the caller for generic varargs array construction.

pick

public static <T> T pick(Collection<T> original,
                         AbstractManagedType.Filter<T> f1,
                         AbstractManagedType.Filter<T> f2,
                         AbstractManagedType.Filter<T> f3,
                         AbstractManagedType.Filter<T> f4)

Applies chain of filters ANDed on the given collection to pick a single element. A null filter evaluates always TRUE. The arguments are not passed as variable argument list to suppress warnings in in the caller for generic varargs array construction.

getJavaType

public final Class<X> getJavaType()

Specified by:

getJavaType in interface Type<X>

toString

public String toString()

Overrides:

toString in class Object