Package org.eclipse.persistence.jpa.jpql
Enum JPQLQueryDeclaration.Type
java.lang.Object
java.lang.Enum<JPQLQueryDeclaration.Type>
org.eclipse.persistence.jpa.jpql.JPQLQueryDeclaration.Type
- All Implemented Interfaces:
Serializable
,Comparable<JPQLQueryDeclaration.Type>
,java.lang.constant.Constable
- Enclosing interface:
JPQLQueryDeclaration
This enum type defines the various types of declarations supported by both the JPA functional
specification and EclipseLink.
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Nested Class Summary
Nested classes/interfaces inherited from class java.lang.Enum
Enum.EnumDesc<E extends Enum<E>>
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Enum Constant Summary
Enum ConstantDescriptionIndicates the "root" object maps a fully qualified class name.Indicates the "root" object maps a collection-valued path expression.Indicates the "root" object is a derived path expression where the identification variable is declared in the super query, otherwise it's an entity name.Indicates the "root" object maps to an entity.Indicates the "root" object maps to a subquery.Indicates the "root" object maps directly to a database table.Indicates the "root" object maps to an unknown expression. -
Method Summary
Modifier and TypeMethodDescriptionboolean
isRange()
Determines whether this type represents a range variable declaration.static JPQLQueryDeclaration.Type
Returns the enum constant of this type with the specified name.static JPQLQueryDeclaration.Type[]
values()
Returns an array containing the constants of this enum type, in the order they are declared.
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Enum Constant Details
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CLASS_NAME
Indicates the "root" object maps a fully qualified class name. -
COLLECTION
Indicates the "root" object maps a collection-valued path expression. -
DERIVED
Indicates the "root" object is a derived path expression where the identification variable is declared in the super query, otherwise it's an entity name. -
RANGE
Indicates the "root" object maps to an entity. -
SUBQUERY
Indicates the "root" object maps to a subquery. -
TABLE
Indicates the "root" object maps directly to a database table. -
UNKNOWN
Indicates the "root" object maps to an unknown expression.
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Method Details
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values
Returns an array containing the constants of this enum type, in the order they are declared.- Returns:
- an array containing the constants of this enum type, in the order they are declared
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valueOf
Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)- Parameters:
name
- the name of the enum constant to be returned.- Returns:
- the enum constant with the specified name
- Throws:
IllegalArgumentException
- if this enum type has no constant with the specified nameNullPointerException
- if the argument is null
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isRange
public boolean isRange()Determines whether this type represents a range variable declaration.- Returns:
true
if this constant represents a range variable declaration;false
otherwise
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