EclipseLink JPA 4.0.2 · org.eclipse.persistence.internal.jpa.querydef.PathImpl

Modifier and Type	Field and Description
protected Object	modelArtifact
protected Path<?>	pathParent

Access	Constructor and Description
public	PathImpl(Path<?> parent, Metamodel metamodel, Class<X> javaClass, Expression expressionNode, Bindable<T> modelArtifact)

Method Summary

Modifier and Type	Method and Description
protected Object	clone() Overrides java.lang.Object.clone. Creates and returns a copy of this object.
public void	findRootAndParameters(CommonAbstractCriteriaImpl<T> query) Overrides org.eclipse.persistence.internal.jpa.querydef.ExpressionImpl.findRootAndParameters. Implements org.eclipse.persistence.internal.jpa.querydef.InternalSelection.findRootAndParameters.
public <Y> Path<Y>	Returns: path corresponding to the referenced attribute get(SingularAttribute<? super X, Y> attribute att) Implements jakarta.persistence.criteria.Path.get. Return the path corresponding to the referenced non-collection valued attribute.
public <E, C extends Collection<E>> Expression<C>	Returns: expression corresponding to the referenced attribute get(PluralAttribute<X, C, E> collection-valued attribute collection) Implements jakarta.persistence.criteria.Path.get. Return the path corresponding to the referenced collection-valued attribute.
public <K, V, M extends Map<K, V>> Expression<M>	Returns: expression corresponding to the referenced attribute get(MapAttribute<X, K, V> map-valued attribute map) Implements jakarta.persistence.criteria.Path.get. Return the path corresponding to the referenced map-valued attribute.
public <Y> Path<Y>	get(String name of the attribute attName) Implements jakarta.persistence.criteria.Path.get. Create a path corresponding to the referenced attribute.
public Bindable<X>	Returns: bindable object corresponding to the path getModel() Implements jakarta.persistence.criteria.Path.getModel. Return the bindable object that corresponds to the path expression.
public Path<?>	Returns: parent getParentPath() Implements jakarta.persistence.criteria.Path.getParentPath. Return the parent "node" in the path.
public Expression<Class<? extends X>>	Returns: expression corresponding to the type of the path type() Implements jakarta.persistence.criteria.Path.type. Return an expression corresponding to the type of the path.

Inherited from org.eclipse.persistence.internal.jpa.querydef.ExpressionImpl:: as buildExpressionForAs in in in in isCompoundExpression isExpression isJunction isLiteral isNotNull isNull isParameter isPredicate isSubquery

modelArtifact	back to summary
protected Object modelArtifact

pathParent	back to summary
protected Path<?> pathParent

PathImpl	back to summary
public PathImpl(Path<?> parent, Metamodel metamodel, Class<X> javaClass, Expression expressionNode, Bindable<T> modelArtifact)

Method Detail

clone back to summary

clone	back to summary
protected Object clone() Overrides java.lang.Object.clone. Doc from java.lang.Object.clone. Creates and returns a copy of this object. The precise meaning of "copy" may depend on the class of the object. The general intent is that, for any object `x`, the expression: x.clone() != x will be true, and that the expression: x.clone().getClass() == x.getClass() will be `true`, but these are not absolute requirements. While it is typically the case that: x.clone().equals(x) will be `true`, this is not an absolute requirement. By convention, the returned object should be obtained by calling `super.clone`. If a class and all of its superclasses (except `Object`) obey this convention, it will be the case that `x.clone().getClass() == x.getClass()`. By convention, the object returned by this method should be independent of this object (which is being cloned). To achieve this independence, it may be necessary to modify one or more fields of the object returned by `super.clone` before returning it. Typically, this means copying any mutable objects that comprise the internal "deep structure" of the object being cloned and replacing the references to these objects with references to the copies. If a class contains only primitive fields or references to immutable objects, then it is usually the case that no fields in the object returned by `super.clone` need to be modified. Returns:Object a clone of this instance. Annotations @Override

protected Object clone()

Overrides java.lang.Object.clone.

Doc from java.lang.Object.clone.

Creates and returns a copy of this object. The precise meaning of "copy" may depend on the class of the object. The general intent is that, for any object x, the expression:

x.clone() != x

will be true, and that the expression:

x.clone().getClass() == x.getClass()

will be true, but these are not absolute requirements. While it is typically the case that:

x.clone().equals(x)

will be true, this is not an absolute requirement.

By convention, the returned object should be obtained by calling super.clone. If a class and all of its superclasses (except Object) obey this convention, it will be the case that x.clone().getClass() == x.getClass().

By convention, the object returned by this method should be independent of this object (which is being cloned). To achieve this independence, it may be necessary to modify one or more fields of the object returned by super.clone before returning it. Typically, this means copying any mutable objects that comprise the internal "deep structure" of the object being cloned and replacing the references to these objects with references to the copies. If a class contains only primitive fields or references to immutable objects, then it is usually the case that no fields in the object returned by super.clone need to be modified.

Returns:Object

a clone of this instance.

Annotations

@Override

findRootAndParameters	back to summary
public void findRootAndParameters(CommonAbstractCriteriaImpl<T> query) Overrides org.eclipse.persistence.internal.jpa.querydef.ExpressionImpl.findRootAndParameters. Implements org.eclipse.persistence.internal.jpa.querydef.InternalSelection.findRootAndParameters. Annotations @Override

findRootAndParameters

back to summary

public void findRootAndParameters(CommonAbstractCriteriaImpl<T> query)

Overrides org.eclipse.persistence.internal.jpa.querydef.ExpressionImpl.findRootAndParameters.

Implements org.eclipse.persistence.internal.jpa.querydef.InternalSelection.findRootAndParameters.

Annotations

@Override

get	back to summary
public <Y> Path<Y> get(SingularAttribute<? super X, Y> att) Implements jakarta.persistence.criteria.Path.get. Return the path corresponding to the referenced non-collection valued attribute. Parameters att:SingularAttribute<? super X, Y> attribute Returns:Path<Y> path corresponding to the referenced attribute Annotations @Override

get

back to summary

public <Y> Path<Y> get(SingularAttribute<? super X, Y> att)

Implements jakarta.persistence.criteria.Path.get.

Return the path corresponding to the referenced non-collection valued attribute.

Parameters

att:SingularAttribute<? super X, Y>: attribute

Returns:Path<Y>

path corresponding to the referenced attribute

Annotations

@Override

get	back to summary
public <E, C extends Collection<E>> Expression<C> get(PluralAttribute<X, C, E> collection) Implements jakarta.persistence.criteria.Path.get. Return the path corresponding to the referenced collection-valued attribute. Parameters collection:PluralAttribute<X, C, E> collection-valued attribute Returns:Expression<C> expression corresponding to the referenced attribute Annotations @Override

get

back to summary

public <E, C extends Collection<E>> Expression<C> get(PluralAttribute<X, C, E> collection)

Implements jakarta.persistence.criteria.Path.get.

Return the path corresponding to the referenced collection-valued attribute.

Parameters

collection:PluralAttribute<X, C, E>: collection-valued attribute

Returns:Expression<C>

expression corresponding to the referenced attribute

Annotations

@Override

get	back to summary
public <K, V, M extends Map<K, V>> Expression<M> get(MapAttribute<X, K, V> map) Implements jakarta.persistence.criteria.Path.get. Return the path corresponding to the referenced map-valued attribute. Parameters map:MapAttribute<X, K, V> map-valued attribute Returns:Expression<M> expression corresponding to the referenced attribute Annotations @Override

get

back to summary

public <K, V, M extends Map<K, V>> Expression<M> get(MapAttribute<X, K, V> map)

Implements jakarta.persistence.criteria.Path.get.

Return the path corresponding to the referenced map-valued attribute.

Parameters

map:MapAttribute<X, K, V>: map-valued attribute

Returns:Expression<M>

expression corresponding to the referenced attribute

Annotations

@Override

get back to summary

get	back to summary
public <Y> Path<Y> get(String attName) Implements jakarta.persistence.criteria.Path.get. Doc from jakarta.persistence.criteria.Path.get. Create a path corresponding to the referenced attribute. Note Applications using the string-based API may need to specify the type resulting from the `get` operation in order to avoid the use of `Path` variables. For example: CriteriaQuery<Person> q = cb.createQuery(Person.class); Root<Person> p = q.from(Person.class); q.select(p) .where(cb.isMember("joe", p.<Set<String>>get("nicknames"))); rather than: CriteriaQuery<Person> q = cb.createQuery(Person.class); Root<Person> p = q.from(Person.class); Path<Set<String>> nicknames = p.get("nicknames"); q.select(p) .where(cb.isMember("joe", nicknames)); Parameters attName:String name of the attribute Returns:Path<Y> path corresponding to the referenced attribute Annotations @Override

public <Y> Path<Y> get(String attName)

Implements jakarta.persistence.criteria.Path.get.

Doc from jakarta.persistence.criteria.Path.get.

Create a path corresponding to the referenced attribute.

Note

Applications using the string-based API may need to specify the type resulting from the get operation in order to avoid the use of Path variables.

   For example:

   CriteriaQuery<Person> q = cb.createQuery(Person.class);
   Root<Person> p = q.from(Person.class);
   q.select(p)
    .where(cb.isMember("joe",
                       p.<Set<String>>get("nicknames")));

   rather than:

   CriteriaQuery<Person> q = cb.createQuery(Person.class);
   Root<Person> p = q.from(Person.class);
   Path<Set<String>> nicknames = p.get("nicknames");
   q.select(p)
    .where(cb.isMember("joe", nicknames));

Parameters

attName:String: name of the attribute

Returns:Path<Y>

path corresponding to the referenced attribute

Annotations

@Override

getModel	back to summary
public Bindable<X> getModel() Implements jakarta.persistence.criteria.Path.getModel. Return the bindable object that corresponds to the path expression. Returns:Bindable<X> bindable object corresponding to the path Annotations @Override

getModel

back to summary

public Bindable<X> getModel()

Implements jakarta.persistence.criteria.Path.getModel.

Return the bindable object that corresponds to the path expression.

Returns:Bindable<X>

bindable object corresponding to the path

Annotations

@Override

getParentPath	back to summary
public Path<?> getParentPath() Implements jakarta.persistence.criteria.Path.getParentPath. Return the parent "node" in the path. Returns:Path<?> parent Annotations @Override

getParentPath

back to summary

public Path<?> getParentPath()

Implements jakarta.persistence.criteria.Path.getParentPath.

Return the parent "node" in the path.

Returns:Path<?>

parent

Annotations

@Override

type	back to summary
public Expression<Class<? extends X>> type() Implements jakarta.persistence.criteria.Path.type. Return an expression corresponding to the type of the path. Returns:Expression<Class<? extends X>> expression corresponding to the type of the path Annotations @Override

type

back to summary

public Expression<Class<? extends X>> type()

Implements jakarta.persistence.criteria.Path.type.

Return an expression corresponding to the type of the path.

Returns:Expression<Class<? extends X>>

expression corresponding to the type of the path

Annotations

@Override

public Class PathImpl<X>

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