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- Type Parameters:
X
- The type containing the represented attributeT
- The type of the represented attribute
public interface SingularAttribute<X,T> extends Attribute<X,T>, Bindable<T>
Instances of the typeSingularAttribute
represents persistent single-valued properties or fields.- Since:
- Java Persistence 2.0
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Nested Class Summary
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Nested classes/interfaces inherited from interface javax.persistence.metamodel.Attribute
Attribute.PersistentAttributeType
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Nested classes/interfaces inherited from interface javax.persistence.metamodel.Bindable
Bindable.BindableType
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method and Description Type<T>
getType()
Return the type that represents the type of the attribute.boolean
isId()
Is the attribute an id attribute.boolean
isOptional()
Can the attribute be null.boolean
isVersion()
Is the attribute a version attribute.-
Methods inherited from interface javax.persistence.metamodel.Attribute
getDeclaringType, getJavaMember, getJavaType, getName, getPersistentAttributeType, isAssociation, isCollection
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Methods inherited from interface javax.persistence.metamodel.Bindable
getBindableJavaType, getBindableType
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Method Detail
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isId
boolean isId()
Is the attribute an id attribute. This method will return true if the attribute is an attribute that corresponds to a simple id, an embedded id, or an attribute of an id class.- Returns:
- boolean indicating whether the attribute is an id
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isVersion
boolean isVersion()
Is the attribute a version attribute.- Returns:
- boolean indicating whether the attribute is a version attribute
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isOptional
boolean isOptional()
Can the attribute be null.- Returns:
- boolean indicating whether the attribute can be null
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Document created the 11/06/2005, last modified the 18/08/2025
Source of the printed document:https://www.gaudry.be/en/java-api-javaee-rf-javax/persistence/metamodel/singularattribute.html
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